JPH11341414A - Moving image recording camera and moving image reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the operability by providing common buttons for accepting the user's operations so as to simplify the operations. SOLUTION: A start/stop button 8 accepts an instruction of start/stop of prescribed processing. A touch tablet that outputs positional data corresponding to a pointed-out position by a touch operation is placed on a surface of an LCD 5. A power reset button 12 accepts a reset instruction of the prescribed processing or power-on of a main power supply.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving picture recording camera and a moving picture reproducing apparatus, and more particularly to a moving picture recording camera and a moving picture reproducing apparatus for recording moving pictures on a randomly accessible recording medium.

[0002]

2. Description of the Related Art At present, video cameras for capturing and recording moving images are widely used. This video camera employs a magnetic tape such as an 8 mm video cassette as a recording medium for photographed video data.

[0003]

In the conventional video camera, however, the user's operations such as turning on / off the power, recording, reproducing, and fast-forwarding are received by separate buttons, so that the operation becomes complicated. There were challenges.

[0004] The present invention has been made in view of such a situation, and is intended to simplify the operation by accepting a user's operation with a common button.

[0005]

According to the first aspect of the present invention, there is provided a moving image recording camera comprising: a mode switching unit for switching between a recording mode and a reproducing mode; a photographing unit for photographing a moving image; A storage unit for storing moving image data, a reproducing unit for reproducing the moving image data stored in the storage unit in the reproduction mode, a power supply unit for supplying power to each unit, and instructing the power supply unit to start supplying power. Receiving means for receiving a user's operation, the mode switching means switching to a reproduction mode when the power supply means starts supplying power in response to the user's operation received by the receiving means.

According to a second aspect of the present invention, there is provided a moving image reproducing apparatus for switching a reproducing mode between a moving image reproducing mode for reproducing a moving image and a still image reproducing mode for reproducing a still image, and a moving image. Receiving means for receiving a user operation instructing a pause of moving image reproduction in the image reproduction mode, wherein the reproduction mode switching means switches from the moving image reproduction mode to a still image in response to the user operation received by the receiving means. It is characterized by switching to an image reproduction mode.

According to a third aspect of the present invention, there is provided a moving image reproducing apparatus for switching a reproducing mode between a moving image reproducing mode for reproducing a moving image and a still image reproducing mode for reproducing a still image, and a moving image. Receiving means for receiving a user operation for instructing fast-forwarding of a moving image in the image reproducing mode, and reproducing means for frame-by-frame reproducing a still image in response to the user operation received by the receiving means in the still image reproducing mode A moving image reproducing apparatus comprising:

According to a fourth aspect of the present invention, there is provided a moving image reproducing apparatus for switching a reproducing mode between a moving image reproducing mode for reproducing a moving image and a still image reproducing mode for reproducing a still image, and a moving image. In the image playback mode, a receiving unit that receives a user operation for instructing a fast rewind of a moving image, and in the still image playback mode, a playback that rewinds and plays back a still image in response to a user operation received by the receiving unit. Means.

In the moving image recording camera according to the first aspect, the mode switching means switches between a recording mode and a reproducing mode, the photographing means photographs a moving image, and the storage means records the recording image. In the mode, the moving image data is stored, the reproducing unit reproduces the moving image data stored in the storing unit in the reproducing mode, the power supply unit supplies power to each unit, and the receiving unit supplies power to the power supply unit. Of the user instructing the start of the operation.

According to a second aspect of the present invention, in the moving image reproducing apparatus, the reproducing mode switching means switches a reproducing mode between a moving image reproducing mode for reproducing a moving image and a still image reproducing mode for reproducing a still image. In the moving image playback mode, the receiving unit receives a user operation instructing a pause of moving image reproduction.

In the moving picture reproducing apparatus according to the third aspect, the reproducing mode switching means switches a reproducing mode between a moving image reproducing mode for reproducing a moving image and a still image reproducing mode for reproducing a still image. Receiving means for receiving a user operation for instructing fast-forwarding of a moving image in the moving image playback mode, and, in the still image reproducing mode, receiving a still image corresponding to the user operation received by the receiving means. Play frame by frame.

According to a fourth aspect of the present invention, in the moving image reproducing apparatus, the reproducing mode switching means switches a reproducing mode between a moving image reproducing mode for reproducing a moving image and a still image reproducing mode for reproducing a still image. Receiving means for accepting a user operation for instructing fast rewinding of a moving image in the moving image playback mode, and responding to the user operation accepted by the receiving means in the still image playback mode to stop the moving image. Play back the frame backwards.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below. In order to clarify the correspondence between each means of the invention described in the claims and the following embodiments, each means is described. When the features of the present invention are described by adding the corresponding embodiment (however, an example) in parentheses after the parentheses, the result is as follows.

That is, the moving image recording camera according to the first aspect of the present invention captures a moving image by mode switching means (for example, a recording button B in FIG. 5) for switching between a recording mode and a reproducing mode. A photographing unit (for example, the camera unit 2 in FIG. 1) and a storage unit for storing moving image data in the recording mode (for example, the magneto-optical disk 1 in FIG. 1)
0), a reproducing unit (for example, step S45 in FIG. 12) for reproducing the moving image data stored in the storage unit in the reproducing mode, and a power supply unit (for example, the battery 38 in FIG. 3) for supplying power to each unit. Receiving means (for example, the power reset button 12 in FIG. 1) for receiving a user's operation for instructing the power supply means to start power supply.

Further, the moving image reproducing apparatus according to a second aspect of the present invention provides a moving image reproducing apparatus for switching between a reproducing mode for reproducing a moving image and a reproducing mode for reproducing a still image. For example, in step S56 in FIG. 12, in the moving image playback mode, there is provided a receiving unit (for example, the start / stop button 8 in FIG. 2) for receiving a user operation for instructing a pause in moving image playback. And

Further, a moving image reproducing apparatus according to a third aspect of the present invention provides a reproducing mode switching means for switching between a reproducing mode for reproducing a moving image and a reproducing mode for reproducing a still image. For example, in step S56 in FIG. 12, in a moving image playback mode, a receiving unit (for example, the touch tablet 9 in FIG. 2) that receives a user operation for instructing fast-forwarding of a moving image, and in a still image playing mode, A moving image reproducing apparatus comprising: reproducing means (for example, step S58 in FIG. 12) for frame-by-frame reproducing a still image in response to a user operation accepted by the means.

Further, the moving image reproducing apparatus according to a fourth aspect of the present invention provides a reproducing mode switching means for switching between a reproducing mode for reproducing a moving image and a reproducing mode for reproducing a still image. For example, in step S56 in FIG. 12), in the moving image playback mode, a receiving unit (for example, the touch tablet 9 in FIG. 2) that accepts a user operation for instructing fast rewind of the moving image, and in the still image playback mode, A reproduction unit (for example, step S58 in FIG. 12) that reproduces a still image frame-by-frame in response to a user operation received by the reception unit.

However, of course, this description does not mean that the means are limited to those described.

FIGS. 1 and 2 are perspective views showing the appearance of a video camera to which the present invention is applied. This video camera includes a main body 1 and a camera 2. In this video camera, when a subject is photographed, a plane facing the subject is a plane X1, and a plane facing the user is a plane X2. Surface X of camera unit 2
1, an imaging lens 3 for capturing an optical image of a subject and a microphone 4 for collecting sound are provided.
The camera unit 2 is rotatably connected to the main unit 1. Therefore, the user can use the liquid crystal display 5
The photographing lens 3 can be directed in an arbitrary direction while observing an image displayed on the LCD 5 (hereinafter, referred to as an LCD 5).

On the other hand, on the surface X2 of the main body 1, an LCD 5 for displaying an image input from the imaging lens 3 or an image stored on the magneto-optical disk 10, a speaker 6 for outputting recorded audio, a zoom And a start / stop button 8 operated to instruct the start or stop of a predetermined process.

On the surface of the LCD 5, a touch tablet 9 for outputting position data corresponding to a position specified by a touch operation is arranged.

The touch tablet 9 is made of a transparent material such as glass, resin, or the like. A user can display an image displayed on the LCD 5 formed inside the touch tablet 9 through the touch tablet 9. Can be observed.

On the side Y of the video camera, there is provided a disk slot 11 into which a magneto-optical disk 10, which is a randomly accessible recording medium for recording photographed video data, is inserted. Further, on the top surface Z of the video camera, a power reset button 1 operated when instructing to turn on the main power supply or reset predetermined processing.
2 are provided.

FIG. 3 is a block diagram showing an example of an electrical configuration inside the video camera of FIG. Lens drive unit 20
Is controlled by the signal processing unit 23 to drive the imaging lens 3 to perform correction such as focus or zoom. The imaging element 21 photoelectrically converts a light image of a subject formed through the imaging lens 3 into an image signal (electric signal) and outputs the image signal to the A / D conversion unit 22. A / D converter 22
Converts an image signal supplied from the image sensor 21 from an analog signal to a digital signal.
The signal processing unit 23 controls exposure of the image sensor 21 (for example,
Aperture or auto gain control), the image signal supplied from the A / D converter 22 is subjected to processes such as white balance correction and gamma correction, and output to the frame memory 24. I have.

The frame memory 24 stores the image signal supplied from the signal processing section 23 or the data compression / expansion section 25 for each predetermined number of frames. Data compression / decompression unit 25
Converts the image signal read from the frame memory 24 into an MPEG
(Moving Picture Experts Group)
This is output to the buffer memory 26, and the image signal read from the buffer memory 26 is expanded and output to the frame memory 24.

The data access unit 27 is provided with a recording / reproducing head, drives the mounted magneto-optical disk 10, and
The image signal or the audio signal read from the buffer memory 26 is recorded on the magneto-optical disk 10, and the image signal or the audio signal recorded on the magneto-optical disk 10 is read and output to the buffer memory 26. The mounting determination unit 28 determines whether or not the magneto-optical disk 10 is mounted, and outputs a result of the determination to the control unit 34.

The audio input / output unit 29 outputs audio input from the microphone 4 to the A / D conversion unit 31 and outputs an audio signal supplied from the D / A conversion unit 30 to the speaker 6. The D / A conversion unit 30 includes an audio signal processing unit 32
Is converted from a digital signal to an analog signal and output to the audio input / output unit 29. The A / D converter 31 converts the audio signal supplied from the audio input / output unit 29 into
The digital signal is converted from an analog signal and output to the audio signal processing unit 32. The audio signal processing unit 32 compresses the audio signal supplied from the A / D conversion unit 31 and outputs the compressed audio signal to the buffer memory 26, and expands the audio signal read from the buffer memory 26 to Output.

The display image creating section 33 is provided with a frame memory 2
An image corresponding to the image signal read from 4 is created and is displayed on the LCD 5 on a monitor. The touch tablet input unit 35 outputs an operation signal (position signal) from the touch tablet 9 to the control unit 34. The operation member input unit 36 receives an operation signal from an operation member such as the zoom button 7, the start / stop button 8, or the power reset button 12, and outputs the operation signal to the control unit 34. The control unit 34 controls the entire video camera based on a computer program stored in the recording unit 37. Further, the control unit 34 has a built-in timer (not shown), and always performs a clocking operation. The storage unit 37 includes, for example, a ROM, a RAM, an EEPROM, or the like (none of them is shown). The storage unit 37 stores data, programs, and the like necessary for the control unit 34 to execute various processes. Is recorded as appropriate. The battery 38 supplies power to each part of the video camera.

The data compression / decompression unit 25, display image creation unit 33, touch panel input unit 35, and control unit 34
Is realized by an internal function of the microprocessor 40.

Next, this video camera start-up processing will be described with reference to the flowchart of FIG. In step S1, the control unit 34 controls the power reset button 1 based on a signal input from the operation member input unit 36.
It is determined whether or not 2 has been pressed. If it is determined that the power reset button 12 has not been pressed, the process waits until it is determined that the power reset button 12 has been pressed.
That is, in this video camera, in order to detect the operation of the power reset button 12 by the user,
Standby power is always on. If it is determined that the power reset button 12 has been pressed, the process proceeds to step S2.

In step S2, the control section 34 turns on the drive power of the entire video camera.

In step S3, the control unit 34 initializes the video camera by reading and executing a predetermined computer program stored in the ROM or the like of the storage unit 37.

In step S4, the display image creation unit 3
3 generates image information of the initial screen under the control of the control unit 34 and outputs the image information to the LCD 5. The LCD 5 displays an initial screen based on the input image information. The control unit 34
Starts a built-in timer to measure the no-operation time.

FIG. 5 shows a display example of an initial image displayed on the LCD 5. At the center of the initial screen, thumbnails A1 to A8 obtained by reducing the leading images of a plurality of (eight in this example) videos (a series of scenes) recorded on the magneto-optical disk 10 are displayed in the order in which they were shot. Is done. On the right side of the screen, a recording button B operated (touched) when instructing a recording process and an erase edit button C operated when instructing an erase edit process are displayed. In the lower left of the screen, an operation (touch) is performed when the drive power of the entire video camera is turned off.
OFF button D is displayed.

Returning to FIG. In step S5, the control unit 34 determines whether or not an arbitrary process has been instructed by the user. If it is determined that the arbitrary process has been instructed, the process proceeds to step S6.

At this time, when the user double-touches the thumbnail A displayed on the LCD 5, a start
When the stop button 8 is pressed or when the thumbnail A
In any of the cases where the start / stop button 8 is pressed after is touched, it is determined that the reproduction process has been instructed. When the recording button B displayed on the LCD 5 is touched, it is determined that the recording process has been instructed. Further, when the delete / edit button C displayed on the LCD 5 is touched, it is determined that the delete / edit processing has been instructed.

In step S6, one of the reproduction processing, the recording processing, and the erasure editing processing specified in step S5 is executed.

FIG. 6 is a flowchart for explaining the recording process. In step S11, the video camera
The recording standby state is set. That is, the taking lens 3 forms an optical image of the subject on the image sensor 21. The image sensor 21 converts an optical image of a subject into an image signal (electric signal).
And outputs it to the A / D converter 22. A / D converter 2
2 converts an image signal supplied from the image sensor 21 from an analog signal to a digital signal. Signal processing unit 23
Performs a process such as white balance correction on the supplied image signal and outputs it to the frame memory 24. The frame memory 24 stores the image signal supplied from the signal processing unit 2325 for each predetermined number of frames. The display image creation unit 33 creates an image corresponding to the image signal read from the frame memory 24 and displays the image on the LCD 5 on a monitor.

In step S12, a recordable time display process is executed, and the recordable time is displayed on the right side of the LCD 5 as shown in FIG. The details of the recordable time display process will be described later.

In step S13, the control unit 34
It is determined whether recording is currently being performed. If it is determined that recording is not being performed, the process proceeds to step S14.

In step S14, the control unit 34
It is determined whether the start / stop button 8 has been pressed. If it is determined that the start / stop button 8 has been pressed, the process proceeds to step S15.

In step S15, the data compression / expansion unit 25 reads out the image signal from the frame memory 24, compresses the image signal using the MPEG method, and outputs it to the buffer memory 26 as a new file. At this time, the control unit 34
Reset the built-in timer.

Here, a file in which the compressed image information is stored will be described with reference to FIGS. In this video camera, image information obtained by photographing a temporally continuous scene is divided into files for each predetermined recording time, for example, one minute, and recorded. Therefore, 2
When a scene 1 for 30 minutes is photographed, as image information, as shown in FIG. 8A, files FL1 and FL2 in which image information for 1 minute is stored and image information for 30 seconds are stored. The file FL3 is divided into three files FL1 to FL3 and stored.

As shown in FIG. 9, the file is composed of a header section and a data section composed of information ("previous file" and "next file") indicating the order of reproduction. For example, in the example of FIG.
FL1 for "previous file", FL for "next file"
2. Each is recorded at a predetermined timing. Thus, even if the files FL1 to FL3 are discretely recorded on the magneto-optical disk 10, they can be continuously reproduced. In the “total number of frames”, the number of frames constituting the file is recorded.

For the "title", "photographer", and "reproduction points 1 and 2" in the header section, arbitrary information can be input by a predetermined method (for example, reading a file into a personal computer). The thumbnail image in the data portion is information of an image obtained by reducing a still image at the head of a series of scenes (in this example, the image at the head of the file FL1). Therefore, no thumbnail images exist in the data portions of the files FL2 and FL3. The main body image and the sound are information itself compressed by the MPEG method. SOF
(Start of File) and EOF (End of File) are information indicating the start and end of the file, respectively.

Returning to FIG. In step S16, the control unit 34 determines whether the start / stop button 8 has been pressed. If it is determined that the start / stop button 8 has not been pressed, the process proceeds to step S17.

In step S17, the control section 34 determines whether or not the timer has exceeded one minute. If it is determined that the timer has passed one minute, the process proceeds to step S18.

In step S18, the data compression / expansion unit 25 records the EOF in the file (old file) currently being recorded (writing information), and creates a new file (new file).

In step S19, the new file is entered in the "next file" of the header of the old file, and the old file is entered in the "previous file" of the header of the new file.

In step S20, the control unit 34
Reset the timer and start measuring again.

If it is determined in step S17 that the timer has not exceeded one minute, the process proceeds to step S21.

In step S21, the control unit 34
The information amount of the recorded image is measured, and it is determined whether the amount is equal to or more than a predetermined amount. When it is determined that the amount is equal to or more than the predetermined amount, the process returns to step S12, and when it is determined that the amount is equal to or less than the predetermined amount, the process returns to step S16.

If it is determined in step S16 that the start / stop button 8 has been pressed, the process proceeds to step S16.
Proceed to 22.

In step S22, the data compression / decompression unit 25 stops compressing the image information. The video camera is set to the recording standby state as in step S11.

In step S23, EOF is recorded in the file (current file) in which information is currently stored.

In step S24, the end is recorded in the "next file" in the header of the current file.

In step S25, a thumbnail image is generated from information recorded in the first file of a series of scenes and recorded in the first file.

In step S26, the control unit 34
It is determined whether the power reset button 12 has been pressed. If it is determined that the power reset button 12 has been pressed, the process proceeds to step S27.

In step S27, the recording standby state is released, and an initial screen (FIG. 8A) is displayed on the LCD 5.

If it is determined in step S26 that the power reset button 12 has not been pressed, the process returns to step S12.

If it is determined in step S13 that recording is currently being performed, steps S14 and S15 are skipped.

If it is determined in step S14 that the start / stop button 8 has not been pressed, the process returns to step S12.

In the above-described processing, the recording time is updated to a new file each time a predetermined time (one minute) elapses, but every time a predetermined storage capacity (for example, 5 megabytes) is consumed. May be updated. Further, the file may be updated every time the GOP (Group Of Picture) reaches a predetermined number (for example, 100 GOP).

The recordable time display process will be described with reference to the flowchart of FIG. In step S31, the control unit 34 controls the data access unit 27 to calculate the remaining capacity of the magneto-optical disk 10 and causes the storage unit 37 to store it as a variable. The remaining capacity is obtained by summing the uninput capacity in which no information is entered and the capacity of files belonging to an erasure directory (described later), and subtracting a predetermined working capacity used for file copying or the like.

In step S32, the control unit 34
The storage capacity time function f is stored in the storage unit 37. The remaining capacity time function includes a function f1 in which the remaining capacity is a variable, a function f2 in which the actual storage capacity actually used is a variable, a function f3 in which the feature of the subject is a variable, and the state of the photographing lens 3 (focus A function f4 in which the distance value, the focusing distance value, and the aperture value) are variables;
And a function f6 in which the discrete state of the remaining capacity is a variable.

In step S33, the control unit 34
The remaining capacity as a variable and the remaining capacity time function are read from the storage unit 37 to calculate the remaining capacity time. The control unit 34
Detects the remaining electric capacity of the battery 38 and converts it into time.

In step S34, the control unit 34
The LCD 5 is controlled to display the remaining capacity time and the remaining electrical capacity time (remaining battery time) as shown in FIG. 7 (recording standby state). During recording, the LCD 5 displays “Recording” below the remaining battery time as shown in FIG.
Is displayed.

In step S35, the control unit 34
It is determined whether the remaining capacity time is longer than the remaining battery time. When it is determined that the remaining capacity time is longer than the remaining battery time, the process proceeds to step S36.

In step S36, the control unit 34
The LCD 5 is controlled to blink the remaining battery time.
In this way, by flashing and emphasizing the remaining battery time in which the remaining time runs out first, the user does not erroneously determine the remaining time in which actual shooting can be performed.

If it is determined in step S35 that the remaining capacity time is not longer than the remaining battery time, step S36 is skipped.

In step S34, the magneto-optical disk 1
Only the remaining capacity of 0 may be displayed, and the remaining battery time may be displayed in step S36. In step S36, for example, the display area of the LCD 5 is reduced.
The mode may be switched to a power saving mode for reducing power consumption.

FIG. 12 is a flowchart for explaining the reproduction processing of the video camera. In step S41,
The control unit 34 determines the method for which the reproduction process has been instructed in step S5 of FIG.

That is, when it is determined that the thumbnail A displayed on the LCD 5 is double-touched and the reproduction process is started, the process proceeds to step S42, and only a series of scenes corresponding to the double-touched thumbnail A is reproduced. The reproduction mode 1 is set.

If it is determined that the reproduction process has been started by pressing the start / stop button 8, the process proceeds to step S43, and all the images recorded on the magneto-optical disk 10 (for example, as shown in FIG. In the case of the example, the reproduction mode 2 for reproducing the thumbnails A1 to A8 and a series of scenes corresponding to each of them is set.

If it is determined that the reproduction process has been started by pressing the start / stop button 8 after the thumbnail A has been touched, the process proceeds to step S44, where all the images after the touched thumbnail A, for example, When the thumbnail A4 is touched in the example shown in FIG.
A reproduction mode 3 for reproducing a series of scenes corresponding to the thumbnails A4 to A8 is set.

In step S45, reproduction of an image is started. That is, under the control of the control unit 34, the data access unit 27 reads the image information specified in any of steps S42 to S44 from the magneto-optical disk 10 and outputs the read image information to the buffer memory 26. The data compression / decompression unit 25 reads out and decompresses image information from the buffer memory 26 and supplies the decompressed image information to the frame memory 24. The display image creation unit 33 reads out image information from the frame memory 24, converts the image information into display information on the LCD 5, and supplies the display information to the LCD 5. LCD5
Displays the supplied display information in the center of the screen as shown in FIG. 13, and displays a fast-forward button E operated to instruct fast-forward and a fast-reverse button F operated to instruct fast-reverse. Display on the right side of the screen.

In step S46, the control unit 34
It is determined whether the start / stop button 8 has been pressed. If it is determined that the start / stop button 8 has not been pressed, the process proceeds to step S47.

In step S47, the control unit 34
It is determined whether the fast forward button E or the fast reverse button F displayed on the LCD 5 has been operated (touched). If it is determined that the fast forward button E or the fast reverse button F has not been touched, the process proceeds to step S48.

In step S48, the control unit 34
It is determined whether the power reset button 12 has been pressed. If it is determined that the power reset button 12 has not been pressed, the process proceeds to step S49.

In step S49, the control unit 34
It is determined whether or not the video being played is at the playback end position determined by the playback mode. If it is determined that the current position is the reproduction end position, the process proceeds to step S50.

In step S50, a reproduction end process (to be described in detail later) for managing the reproduced file is executed.

If it is determined in step S48 that the power reset button 12 has been pressed, the process proceeds to step S48.
Skip 49.

If it is determined in step S49 that the position is not the reproduction end position, the process returns to step S46.

If it is determined in step S47 that the fast forward button E or the fast reverse button F has been touched, the flow advances to step S51.

In step S51, the control unit 34
In order to prevent a user's operation error, the process waits for a predetermined time (for example, 0.2 seconds) after the fast forward button E or the fast reverse button F is touched.

In step S52, the control unit 34
It is determined whether the fast forward button E or the fast reverse button F is touched.

In step S53, under the control of the control unit 34, a fast-forward or fast-reverse image is displayed on the LCD 5.

In step S54, the control unit 34
It is determined whether the fast forward button E or the fast reverse button F has been touched. Fast forward button E or fast reverse button F
If it is determined that has been touched, the process proceeds to step S55. When it is determined that the fast-forward button E or the fast-reverse button F is not touched, the process waits until the button E or the button F is touched (fast-forward or fast-reverse is continued).

In step S55, the control unit 34
End fast forward or fast reverse and start normal playback.

If it is determined in step S46 that the start / stop button 8 has been pressed, the process proceeds to step S46.
Proceed to 56.

In step S56, a still image is displayed in the center of the LCD 5 under the control of the control unit 34, as shown in FIG. 14, and a frame advance button G operated to instruct frame advance, and A frame return button H operated when instructing frame return is displayed on the right side of the screen.

In step S57, the control unit 34
It is determined whether the frame advance button G or the frame return button H displayed on the LCD 5 has been touched. When it is determined that the frame advance button G or the frame return button H has been touched, the process proceeds to step S58.

In step S58, under the control of the control section 34, the frame advance or frame rewind image is displayed on the LCD 5.

In step S59, the control unit 34
It is determined whether the start / stop button 8 has been pressed. If it is determined that the start / stop button 8 has been pressed, the process proceeds to step S60.

In step S60, under the control of the control unit 34, a normally reproduced moving image is displayed on the LCD 5.

If it is determined in step S57 that the frame advance button G or the frame return button H has not been touched, step S58 is skipped.

If it is determined in step S59 that the start / stop button 8 has not been pressed, the flow returns to step S57.

Regarding the reproduction end processing in step S50,
This will be described with reference to the flowchart of FIG. In the reproduction ending process, the file storing the image information reproduced before step S50 is classified into one of protected, erased, suspended, and undisposed according to a user's instruction. Protect is readable,
Files that cannot be erased and that are stored are categorized. Erasing is a file that can be overwritten, and files to be erased are classified into this.
Holds are classified as protected, or files that have been put on hold for classification. Untreated, protected,
Files that are not classified as either erased or suspended, and for which playback end processing is executed for the first time, are classified into this.

In step S61, the control unit 34
It is determined whether or not an unprocessed or suspended file exists in the image file reproduced before step S50. If it is determined that there is a file for disposal or suspension, the process proceeds to step S62.

In step S62, the control unit 34
It is determined whether or not a disposal completion file (protected, erased, or suspended file) is mixed in the file of the image reproduced before step S50. If it is determined that the disposal completion files are mixed, the process proceeds to step S63.

In step S63, the control unit 34
The LCD 5 is controlled to display a batch protect button I, a batch erase button J, a confirmation button K, and a hold button L as shown in FIG. Batch protect button I
Is operated when collectively classifying the held files and unprocessed files among the reproduced files as protected. The batch erase button J is operated when batch-classifying the held files and unprocessed files among the reproduced files as erase. The confirmation button K is operated when the image reproduced before step S50 is reproduced again. The hold button L is operated when classifying a reproduced unprocessed file as a hold.

In step S64, the control unit 34
It is determined whether the hold button L has been pressed. If it is determined that the hold button L has not been pressed, step S65
Proceed to.

In step S65, the control unit 34
It is determined whether or not the confirmation button K has been pressed. If it is determined that the confirmation button K has not been pressed, step S65
Proceed to.

In step S66, the control unit 34
Set all pending files and unprocessed files to be processed.

In step S67, the control unit 34
It is determined whether the protect button or the erase button has been pressed. When it is determined that the collective protect button I or the protect button M (described later) has been pressed, the process proceeds to step S68.

In step S68, the control unit 34
Classify the file to be disposed of as protected (set the file attribute to Read Only).

At step S69, the control unit 34
It is determined whether or not there is an undisposed file in the file reproduced before step S50 but containing the image. If it is determined that there are no unprocessed files, LC
After the initial screen (FIG. 8A) is displayed on D5, the process returns.

If it is determined in step S65 that the confirmation button K has been pressed, the flow advances to step S70.

In step S70, under the control of the control unit 34, the unprocessed file among the images reproduced before step S50 is reproduced as a processing target and displayed on the LCD 5.

In step S71, under the control of the control unit 34, the LCD 5 displays a protect button M and an erase button N as shown in FIG. The protect button M is operated when classifying a file to be processed into protect. The delete button N is operated when classifying a file to be processed as deleted.

If it is determined in step S67 that the batch erase button J or the erase button N has been pressed,
Proceed to step S72.

At step S72, the control unit 34
In step S70, it is determined whether or not the reproduced image is in the middle of the file. If it is determined in step S70 that the reproduced image is in the middle of the file, the process proceeds to step S70.
Go to 73.

In step S73, an intermediate process (described later) is executed.

In step S74, the file to be disposed is classified as deleted (moved to the deleted directory).

If it is determined in step S61 that there is no disposal file or suspension file, the process returns.

If it is determined in step S62 that the disposal completion files do not exist, the process proceeds to step S71.

When it is determined in step S64 that the hold button L has been pressed, the process returns.

In step S72, step S70
If it is determined that the reproduced image is not in the middle of the file, step S73 is skipped.

FIG. 18 is a flowchart for explaining the erasure editing process of the video camera. In step S81, the control unit 34 displays the thumbnails A1 to A9 at the center of the LCD 5 and displays "under erasure editing" on the right side of the screen, as shown in FIG. Here, the user performs the same operation as the above-described operation for starting the reproduction process (see steps S41 to S44 in FIG. 12). The control unit 34 reads and reproduces image information from the magneto-optical disk 10 in response to a user operation, and causes the LCD 5 to display an image. At this time, the control unit 34 controls the LCD 5 to display a normal reproduction display (FIG. 1) as shown in FIG.
Unlike 3), the remaining capacity of the magneto-optical disk 10 and the capacity of the portion to be erased are displayed. With this, if the user erases the portion to be erased, how much capacity is secured (increased). Can be determined. In addition, the user can also determine that the editing is being performed. The part to be erased will be described later.

In step S82, the control unit 34
It is determined whether or not the start / stop button 8 has been pressed, and whether or not the image being reproduced is at the reproduction end position. If it is determined that the start / stop button 8 has not been pressed and that the reproduced image is not at the reproduction end position, the process proceeds to step S83.

In step S83, the control unit 34
It is determined whether or not the display area of the moving image of the touch tablet 9 placed on the LCD 5 on which the moving image is displayed is touched. If it is determined that the touch tablet 9 has been touched (the start point or the end point of the erased portion has been instructed), the process proceeds to step S84.

In step S84, the control unit 34
The LCD 5 determines whether the image being reproduced is in the color reproduction mode. Here, the color reproduction mode is a mode for reproducing an image for which erasure is not specified, and the reproduced image is displayed on the LCD 5 in color. If it is determined that the LCD 5 is in the color reproduction mode (the displayed image is not the part to be erased), the process proceeds to step S85.

At step S85, the control unit 34
Change from color playback mode to black and white playback mode,
Is switched from color display to monotone display. Here, the monochrome reproduction mode is a mode for reproducing an image designated to be erased, and the reproduced image is displayed on the LCD 5 in monotone.

In step S86, the control unit 34
A scenario file (a work recording file referred to when erasing is performed), using the timing at which the touch tablet 9 is touched in step S83 as the start point of the erased portion.
To record.

If it is determined in step S84 that the mode is the black and white reproduction mode (the displayed image is the portion to be erased), the flow advances to step S87.

In step S87, the control unit 34
Change the LCD 5 from monotone display to color display.

In step S88, the control unit 34
In step S83, one second before the timing at which the touch tablet 9 is touched is recorded as the end point of the erased part in the scenario file (work recording file referred to when executing the erase). By setting the end point of the erased portion to be one second before the timing at which the touch tablet 9 is touched, it is possible to prevent the erased portion from becoming unnecessarily long due to a delay in user operation. Further, the control unit 34 detects the capacity of the portion to be erased and updates the display of the capacity of the portion to be erased shown in FIG.

If it is determined in step S83 that the touch tablet 9 has not been touched, the process returns to step S82.

If it is determined in step S82 that the start / stop button 8 has been pressed or that the image being reproduced is at the reproduction end position, step S89 is performed.
Proceed to.

In step S89, the control unit 34
As shown in FIG. 20, a confirm button O operated when instructing erasure of a portion to be erased, a test mode 1 button P operated when skipping and erasing the portion to be erased, and a monotone to be erased The LCD 5 displays a test mode 2 button Q operated when displaying the non-erasure target portion in color, and an initial screen button R operated when returning to the initial screen (FIG. 5).

At step S90, the control unit 34
It is determined whether the confirm button O has been touched. If it is determined that the confirm button O has been touched, step S9
Proceed to 1.

In step S91, the control unit 34
It is determined whether the start point or the end point of the part to be deleted exists in the middle of the file. If it is determined that the start point or the end point of the portion to be deleted exists in the middle of the file, the process proceeds to step S92.

In step S92, an intermediate process of the file including the portion to be erased is executed.

Here, the intermediate processing will be described. As described above, in the present embodiment, image information is compressed using the MPEG method and stored in a file. MPEG
In the compression, based on the image information of the reference frame,
By recording difference information from the image information of the reference frame as image information of a predetermined number of frames following the reference frame, the amount of information is compressed. Therefore, for example, when dividing a file into two in order to erase the first half of the file at an arbitrary position (frame),
If a frame near the beginning of the second half to be retained (saved) is a frame existing in the first half of the file, the information of the reference frame needs to be recorded in the second half of the file. This process is an intermediate process. For details of the intermediate processing, the example shown in FIG.
This will be described with reference to the flowchart of FIG.

At step S101, the control unit 34
Extracts a series of scenes including a file having a portion to be erased with reference to a scenario file (to be processed). For example, in the case of the example shown in FIG.
Since the part to be erased exists from FL9 to FL9, scene 3 is extracted.

At step S102, control unit 34
Extracts the file containing the portion to be erased. In the case of this example, the file FL7 is extracted.

At step S103, control unit 34
Extracts the non-erased part of the file extracted in step S102. In the case of this example, the file FL7a is extracted.

At step S104, control unit 34
Determines whether the non-erased part extracted in step S103 is the head of the file. In the case of this example, since the file FL7a is the head of the file, step S10
Go to 5.

In step S105, control unit 34
Copies the file FL7a extracted in step S103 to the Bach memory 26.

At step S106, control unit 34
Executes the termination processing (writing of EOF) of the file FL7a copied to the Bach memory 26.

In step S107, control unit 34
Controls the data access unit 27 to record the file FL7a having been subjected to the termination processing on the magneto-optical disk 10, as shown in FIG. 8C.

At step S108, control unit 34
Controls the data access unit 27 to control the file FL7a
Of the file FL7b in the "next file" of the header section of the file.

In step S109, control unit 34
Determines whether a non-erased part remains in the file extracted in step S102. Since no non-erased portion remains in the file FL7, the process proceeds to step S110.

In step S110, control unit 34
Determines whether or not a file having a start point or an end point of the non-erased part remains in the series of files extracted in step S101. In this example, since the file FL9 remains, the process returns to step S102.

In the step S102, the file FL9
Is extracted.

In the step S103, the file FL9
b is extracted.

In the step S104, the file FL9
It is determined that b is not the head of the file, and step S1
Proceed to 12.

In step S112, control unit 34
Causes the file FL9 extracted in step S102 to be copied to the buffer memory 26.

In step S113, control unit 34
Controls the data compression / decompression unit 25 to decompress the file FL9.

At step S114, control unit 34
Controls the data compression / decompression unit 25 to extract the file FL9b, which is a non-erased part, from the file FL9 and compress it by MPEG.

At step S115, control unit 34
Controls the data access unit 27 to record the MPEG-compressed file FL 9 b on the magneto-optical disk 10.

In step S108, control unit 34
Controls the data access unit 27 to control the file FL9b
The file FL9a is entered in the "previous file" of the header part of the above, and the file FL10 is entered in the "next file".

In the step S109, the file FL9
Since no non-erased part remains in step S110,
Proceed to.

In step S110, step S1
Since there is no remaining file including the start point or end point of the non-erased part in the series of files extracted in step 01, the process proceeds to step S111.

In step S111, it is determined whether or not a series of scenes including a file having a portion to be erased exists. In this case, since no such file exists, the process returns.

Returning to FIG. In step S93,
The control unit 34 controls the data access unit 27 to delete the portions to be erased (in the example of FIG. 8B, the files FL7b, FL8,
And FL9a) are erased (stored in the erasure directory).

If it is determined in step S91 that the start point or the end point of the portion to be erased does not exist in the middle of the file, step S92 is skipped.

If it is determined in step S90 that the enter button O has not been touched, the process proceeds to step S94.
Proceed to.

At step S94, the control unit 34
It is determined whether the test mode 1 button P has been touched. If it is determined that the test mode 1 button P has been touched, the process proceeds to step S95.

In step S95, the control unit 34
The part to be erased in the scene designated in step S81 is skipped and reproduced, and displayed on the LCD 5.

In step S94, test mode 1
If it is determined that the button P has not been touched, the process proceeds to step S96.

At step S96, the control unit 34
It is determined whether the test mode 2 button Q has been touched. When it is determined that the test mode 2 button Q has been touched, the process proceeds to step S97.

At step S97, the control unit 34
The part to be erased in the scene designated in step S81 is reproduced in monotone, and the non-erased part is reproduced in color and displayed on the LCD 5.

In step S96, test mode 2
If it is determined that the button Q has not been touched, the process proceeds to step S98.

At step S98, the control unit 34
It is determined whether the initial screen button R has been touched. If it is determined that the initial screen button R has not been touched, the process returns to step S90. If it is determined that the initial screen button R has been touched, the initial screen (FIG.
(A)) is displayed.

As described above, when the first half of the file FL as shown in FIG. 8D is a part to be erased (a is the end point of the part to be erased) as shown in FIG. When the latter half of the file FL is an erasure target portion (b is the start point of the erasure target portion), and FIGS. 8D and 8E as shown in FIGS. 8F and 8G Arbitrarily can be erased, for example, when arbitrarily combined.

Returning to FIG. In step S7, the control unit 34 determines whether the OFF button D has been touched. If it is determined that the OFF button D has been touched, the process proceeds to step S8.

In step S8, the control unit turns off the drive power supply of the video camera. However, power
The standby power supply for detecting an operation on the reset button 12 is on.

If it is determined in step S7 that the OFF button D has not been touched, the flow advances to step S9.

In step S9, the control section 34 determines whether or not a predetermined time has elapsed since the initial screen was displayed in step S4. When it is determined that the predetermined time has elapsed, the process proceeds to step S8, and when it is determined that the predetermined time has not elapsed, the process returns to step S5.

FIG. 21 shows an example of the remaining capacity time obtained by the fuzzy remaining capacity time function in the recording available time temporal processing of FIG. Step S3 in FIG.
The remaining capacity time displayed in 4 may be any one of the actual display minimum, the actual display maximum, and the actual display average described below.

The elapsed time in FIG. 21 indicates the elapsed time since the start of recording. The assumed remaining Min time indicates the remaining recordable time when the storage capacity consumption per unit time is assumed to be the maximum value. In the assumed maximum remaining time, the remaining recordable time when the storage capacity consumption per unit time is assumed to be the minimum value is displayed. In the actual remaining capacity, the remaining capacity actually measured based on the elapsed time of 0 minutes is displayed.
The actual display minimum shows the remaining recordable time when the storage capacity consumption per unit time corresponding to the actual consumption remaining capacity is assumed to be the maximum value. In addition, for example,
8.6 → 9 indicates that the calculated value is 8.6 and a rounded value of 9 is displayed. The actual display maximum is
The remaining recordable time when the storage capacity consumption per unit time corresponding to the actual consumption remaining capacity is assumed to be the minimum value is displayed. As the actual display average, an average value of the actual display minimum and the actual display maximum is displayed.

A computer program for causing the control unit 34 to execute the above-described processing is stored in the storage unit 37. Further, the computer program may be supplied to the user in a state stored in the magneto-optical disk 10 in advance.

Further, in the present embodiment, the magneto-optical disk 1 is used as a recording medium for recording compressed image information.
Although 0 is used, another information recording medium (for example, DVD or the like) that can be randomly accessed may be used.

[0175]

As described above, according to the moving image recording camera of the first aspect, when the power supply is started, the mode is switched to the reproduction mode, so that the operability can be improved.

According to the moving image reproducing apparatus of the second aspect, the operation for temporarily stopping the reproduction of the moving image instantaneously switches the stop from the moving image reproducing mode to the image reproducing mode, thereby improving the operability. it can. Since the recording time of the recording means is compared with the power supply time of the power supply means, and the display method is changed to time information according to the comparison result, appropriate time information is displayed to the user. Can be.

According to the moving image reproducing apparatus of the third aspect and the moving image reproducing apparatus of the fourth aspect, the operation location in the moving image reproduction mode is the same as the operation location in the still image reproduction mode. Operability can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of a video camera to which the present invention is applied.

FIG. 2 is a perspective view showing a configuration when viewed from the back of the video camera of FIG. 1;

FIG. 3 is a block diagram showing an electrical configuration inside the video camera of FIG. 1;

FIG. 4 is a flowchart illustrating startup processing of the video camera in FIG. 1;

FIG. 5 is a diagram illustrating an image displayed on the LCD 5 of FIG. 2;

FIG. 6 is a flowchart illustrating a recording process of the video camera in FIG. 1;

FIG. 7 is a diagram illustrating an image displayed on the LCD 5 of FIG.

FIG. 8 is a diagram illustrating a file in which information is recorded.

FIG. 9 is a diagram illustrating a file in which information is recorded.

FIG. 10 is a flowchart illustrating a recordable time display process of the video camera in FIG. 1;

FIG. 11 is a diagram illustrating an image displayed on LCD 5 of FIG. 2;

FIG. 12 is a flowchart illustrating a reproduction process of the video camera in FIG. 1;

13 is a diagram illustrating an image displayed on the LCD 5 of FIG.

FIG. 14 is a diagram illustrating an image displayed on LCD 5 of FIG. 2;

FIG. 15 is a flowchart illustrating a reproduction end process of the video camera in FIG. 1;

FIG. 16 is a diagram illustrating an image displayed on LCD 5 of FIG. 2;

FIG. 17 is a diagram illustrating an image displayed on LCD 5 of FIG. 2;

FIG. 18 is a flowchart illustrating an erasure editing process of the video camera in FIG. 1;

FIG. 19 is a diagram illustrating an image displayed on LCD 5 of FIG. 2;

20 is a diagram illustrating an image displayed on LCD 5 of FIG.

FIG. 21 is a flowchart illustrating an intermediate process of the video camera in FIG. 1;

FIG. 22 is a diagram showing an example of a remaining capacity time displayed in step S34 of FIG.

FIG. 23 is a diagram illustrating an image displayed on LCD 5 of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body part 2 Camera part 3 Shooting lens 4 Microphone 5 LCD 6 Speaker 7 Zoom button 8 Start / Stop button 9 Touch tablet 10 Magneto-optical disk 11 Disk slot 12 Power reset button 20 Lens drive part 21 Image sensor 22 A / D conversion Device 23 signal processing unit 24 frame memory 25 data compression / decompression unit 26 buffer memory 27 data access unit 28 attachment determination unit 29 audio input / output unit 30 D / A conversion unit 31 A / D conversion unit 32 audio signal processing unit 33 display image creation Unit 34 control unit 35 touch input unit 36 operation member input unit 37 storage unit 38 battery

Claims (4)

[Claims] A mode switching unit for switching between a recording mode and a reproduction mode; a photographing unit for photographing a moving image; a storage unit for storing moving image data in the recording mode; A reproducing unit that reproduces the moving image data stored in the storage unit; a power supply unit that supplies power to each unit; and a reception unit that receives a user operation that instructs the power supply unit to start power supply. The moving image recording camera, wherein the mode switching unit switches to the reproduction mode when the power supply unit starts power supply in response to a user operation received by the reception unit. 2. A reproduction mode switching means for switching a reproduction mode between a moving image reproduction mode for reproducing a moving image and a still image reproduction mode for reproducing a still image, and a moving image reproduction mode in the moving image reproduction mode. Receiving means for receiving a user's operation for instructing a pause; and in response to the user's operation received by the receiving means, the playback mode switching means switches from the moving image playback mode to the still image playback mode. A moving image reproducing apparatus characterized by the above-mentioned. 3. A reproduction mode switching means for switching between a reproduction mode of a moving image reproducing mode for reproducing a moving image and a still image reproducing mode for reproducing a still image, and fast-forwarding of the moving image in the moving image reproducing mode. Receiving means for receiving an operation of a user who instructs the user, and in the still image reproduction mode, reproducing means for frame-by-frame reproduction of the still image in response to the user operation received by the receiving means. Moving image reproducing apparatus. 4. A reproducing mode switching means for switching between a reproducing mode of a moving image reproducing mode for reproducing a moving image and a still image reproducing mode for reproducing a still image. Receiving means for receiving an operation of a user who instructs return, and in the still image reproduction mode, reproducing means for returning the still image by frame in response to the operation of the user received by the receiving means. A moving image reproducing apparatus characterized by the following.