JPH05198141A - Video editing system - Google Patents

Abstract

PURPOSE:To provide a system capable of an automatic editing by a very simple operation when a video photographed by a video camera, etc., is edited. CONSTITUTION:Scene numbers whose one scene covers a part from a recording starting time including a temporary stop releasing to a recording termination time including a temporary stop are recorded on a magnetic tape by a scene number recording means when a photographing is executed and at the time of editing, the scene numbers are read by a scene number decoder 3, the scene numbers from the scene number decoder 3 are transformed into video signals and displayed on a monitor TV 7. The scene numbers desired to be edited are inputted to an editing controller 4a from an input device 5a based on the scene numbers displayed on the monitor TV 7 and a reproducer 1 and a recorder 2 are operated by the editing controller 4a so as to edit as instructed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video editing system using a video tape recorder (hereinafter referred to as "VTR"), and is particularly effective means for quickly and easily editing an image taken by a video camera. Regarding

[0002]

2. Description of the Related Art Generally, when playing back an image taken by a video camera or the like, a scene which is not the intention of the photographer is recorded due to an operation error, a camera shake is large and unsightly, and an unchanging scene is taken for a very long time. In many cases, the video effect can be enhanced by editing it into a beautiful and concise story.

FIG. 5 is a block diagram of a conventional video editing system. The structure and operation of the conventional video editing system will be described below with reference to the drawings. A playback side VTR (hereinafter, playback) for playing back a video image captured by a video camera or the like. 1) and a recording side V for selectively recording the video / audio signal from the reproducing machine 1.
TR (hereinafter referred to as recorder) 2 and those two VTRs
Editing controller 4 for controlling the
The input device 5 sends out editing points and various command signals, and the monitor television 7 receives the video / audio signals of the recorder 2.

As an editing work procedure, first, the player 1 is set in a reproducing state and the edit points of the cut-in and cut-out are determined and input while watching the image displayed on the monitor TV 7 via the recorder 2. The edit point is input to the edit controller 4 by the device 5. Then, the edit controller 4 receives the input from the edit point 5 by the input device 5 and reads and stores the time counter value of the reproducing device 1. Here, the time counter value is, for example, a count value of a control signal recorded on the lower end of the tape for tracking servo in a VHS standard VTR which is a mainstream of home 1/2 inch VTR, and is the easiest unless it is reset. It is the tape position information obtained in.

As described above, when the edit execution command is input by the input device 5 after the time counter values at the edit points of several scenes are stored in the edit controller 4, the edit controller 4 is loaded into the tape reproducing device 1. Is rewound to the initial value of the time counter value, the recorder 2 is set to the recording standby state, and then the player 1 is set to the reproducing state.
When the time counter value of the player 1 reaches the first cut-in point, the recorder 2 is set to the recording state, and the video / audio output of the player 1 is recorded on the tape loaded in the recorder 2. When the time counter value of the player 1 reaches the cut-out point, the recorder 2 is put into the recording standby state, and the recording operation is suspended until the next cut-in point of the player 1. As described above, the video source recorded on the tape loaded on the reproducing device 1 can be edited on the tape loaded on the recording device 2.

[0006]

However, there is a problem of poor operability as a problem when video editing is performed by the above conventional method.
The editor must always decide the cut-in and cut-out edit points while watching the monitor TV 7, and the conventional video editing system is unacceptable for an editor who wants to edit easily and easily. there were.
However, as mentioned above, the images taken by the video camera are very unsightly, and anyone wants to save them in a beautiful and concise story that can be easily edited.

An object of the present invention is to provide a video editing system which solves the above-mentioned conventional problems and can be easily performed by anyone.

[0008]

In order to achieve the above object, in the video editing system of the present invention, a scene from a recording start including a pause release to a recording stop including a pause is taken as one scene during shooting. A means for recording the number on the magnetic tape, a scene number decoding means for reading out the scene number at the time of editing, a means for converting the scene number from the scene number decoding means into a video signal and displaying it on a monitor television, and a means for displaying it on the monitor television. It is equipped with a means for inputting the scenes to be edited in the required order by looking at the scene numbers and automatically editing based on that.

[0009]

According to the present invention, in the above-described structure, whether or not the object to be edited is judged based on the image displayed on the monitor TV and the scene number, and the scene numbers to be edited are input in the order of recording in the recorder or the scene numbers to be deleted are set. The scenes to be input and edited can be automatically edited in the order of the input scene numbers, which allows easy visual operation.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 2 is a waveform diagram of control signals and a control track diagram on the tape for explaining an embodiment of a method of recording the scene number on the tape at the time of shooting with a VTR with a video camera (first video tape recorder). And a 1/2 inch VTR for home use
It is intended to record information, that is, a scene number, on the control track by changing the duty ratio of the control signal recorded at the lower end of the tape for tracking servo in the VHS of the VHS standard, which is the mainstream. 2A and 2B show data “0” respectively.
The duty ratio of the recording current of the control signal and its reproduction waveform for "1" and "1" are shown. The period during which the N pole is magnetized on the tape at the 30 Hz control signal, that is, the high level period and the S pole in the recording current waveform For example, "0" is set when the duty ratio is about 60:40 with respect to the magnetizing period, that is, the low level period of the recording current waveform, and "1" is set when the duty ratio is about 27:73. FIG. 2 (C) shows the format of the control track recorded on the tape. The header consists of 11 bits in which 9 bits of "1" are written with "0" at both ends, and 4-bit BCD of 4 digits. User data,
The BCD is composed of 6-digit time code data, a 4-bit checksum, and a time code (not shown) including 10-bit or 8-bit dummy bits. The scene number can be recorded in this user data area, but what is important here is the definition of the scene number, and the present invention is from the start of recording including pause cancellation to the stop of recording including pause The scene number is recorded as one scene. Generally, in a VTR with a video camera, if the pause button is pressed during recording, the recording standby state is entered, and if the pause button is pressed again, the recording state is resumed, and images are recorded so that the images are not disturbed at the joints. Therefore, the scene number is updated even when paused. As described above, the scene number can be recorded on the tape together with the video / audio signal at the time of shooting.

Next, the structure and operation of the method for editing the photographed tape will be described below. FIG. 1 is a block diagram of an embodiment of a video editing system of the present invention. It is a reproducing device 1 (second video tape recorder) for reproducing a tape photographed by a video camera or the like, and a video / audio from the reproducing device 1. A scene number (details) recorded on a recorder 2 (third video tape recorder) for selectively recording signals and a tape (hereinafter referred to as a master tape) connected to the player 1 and loaded in the player 1 (details). Scene number decoder 3 for reading
And the editing controller 4a for controlling the player 1 and the recorder 2 by inputting the scene number from the scene number decoder 3
And an input device 5a for sending a scene number to be edited and various command signals to the editing controller 4a, and a signal mixer for mixing a video signal output of the recorder 2 and a scene number signal obtained by converting the scene number information into a video signal. 6 and a monitor television 7 that displays the video output signal of the signal mixer 6. In the above, the video signal to the signal mixer 6 may be obtained from the regenerator 1.

First, the playback device 1 is put into the playback state from the input device 5 via the editing controller 4a, and the video image recorded on the master tape is sent via the recorder 2 to the monitor television 7.
The scene number decoder 3, which receives the playback control signal from the playback device 1 at that time, reads the user data on the master tape to detect the scene number, and then displays the scene number. Is converted into a video signal and output, and is mixed with the video output signal of the reproducing device 1 by the signal mixer 6 and displayed on the monitor TV 7. FIG. 3 shows an example of an image displayed on the monitor television 7, and a scene number 8 is displayed at the lower right of the screen. This is the scene number written by the VTR on the control track on the master tape when this video was taken. Therefore, when the master tape is reproduced, the scene number is updated for each continuously recorded image, and the editor looks at the image on the monitor television 7 and determines the scene to be edited. In other words, it is possible to identify a scene that is not the intention of the photographer due to an operation error, a scene in which camera shake is large and unsightly, or an unnecessary scene that does not change.

Next, when the scene numbers to be edited are input from the input device 5a in the order of editing, or the scene numbers to be deleted are input and an editing start command is input, the editing controller 4a causes the editing controller 4a to edit the scene of the master tape of the reproducing apparatus 1. The recording start position of the number is searched for, the reproducing device 1 is set to the reproducing state, and the recording device 2 is set to the recording state to copy the video / audio of the scene number. Then, the recording start position of the next scene number is searched, the same processing is automatically performed, and the editing work is completed. In this case, if the scenes to be edited are not continuous, or if they are not in front of or behind, a known technique for detecting the recording start position by repeating fast forward and rewind may be used.

FIG. 4 is an image diagram of the tape before editing, that is, the master tape and the tape after editing, that is, the tape loaded in the recorder 2 for explaining the above operation, and the numbers are scene numbers. In this case, nine scenes from "0001" to "0009" are recorded on the master tape in total, and the editor reproduces "0" to "0".
"001", "0003", "0004", "000"
7 "," 0005 "," 0008 "and" 0009 "
It is decided that the scenes of No. 1 are to be edited in that order, the scene number is input to the input device, and the editing is executed.

In the above embodiment, the scene number is recorded on the tape by utilizing the duty modulation of the control signal.
The scene number may be recorded by using the TC (Vertical Interval Time Code) method or a rewritable user area on the tape.

When a scene to be deleted is input, the scene number excluding the scene to be deleted is the scene number to be edited, and it can be understood that the scene numbers are edited in the order of the scene numbers.

The scene number decoder 3, the editing controller 4a, the input device 5a, and the signal mixer 6 in the above description may be independent or may be a combination of two or more functions. Absent.

[0018]

As is apparent from the above description, the video editing system of the present invention determines whether or not an object to be edited can be judged by the video image and the scene number displayed on the monitor television.
It can be automatically edited by inputting the scene numbers to be edited in the order of recording or the scene numbers to be deleted, and anyone can easily operate.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of a video editing system of the present invention.

FIG. 2 is a waveform diagram of a control signal and a control track diagram on the tape for explaining an embodiment of a method of recording the scene number on the tape according to the embodiment.

FIG. 3 is a schematic diagram showing an example of an image displayed on the monitor television 7 of the same embodiment.

FIG. 4 is an image diagram of comparison between a tape before editing and a tape after editing in the embodiment.

FIG. 5 is a block diagram of a conventional video editing system.

[Explanation of symbols]

 1 Playback device 2 Recording device 3 Scene number decoder 4a Editing controller 5a Input device 6 Signal mixer 7 Monitor TV

Claims (1)

[Claims] 1. A first video tape recorder for recording a scene number on a magnetic tape as one scene from a recording start including a pause release at the time of shooting to a recording stop including a pause, and the magnetic tape during editing. Second playing tape
Video tape recorder, a third video tape recorder for selectively recording the video output signal and audio output signal of the second video tape recorder, and the scene number connected to the second video tape recorder and reading the scene number. A scene number decoder, an editing controller that receives the scene number information from the scene number decoder and controls the second and third videotape recorders, and sends the scene number to be edited and various command signals to the editing controller. An input device, a signal mixer for mixing the video output signal of the second or third video tape recorder and a scene number signal obtained by converting the scene number information into a video signal, and a video output signal of the signal mixer. And a monitor TV for projection, wherein the editing controller is a screen to be edited input from the input device. The scene number decoder reference the second and third reproduction of a video tape recorder, a video editing system comprising configured to control the recording operation of the output of the order of numbers.