JP2011029691A - Imaging apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an imaging apparatus capable of selecting or correcting a captured image having a desired image frame or angle of field at a user-desired timing after imaging. <P>SOLUTION: The imaging apparatus includes an optical system for generating an optical image from an object, an adjustment part for adjusting a focal length of the optical system, an imaging part for photoelectrically converting the optical image for imaging to generate the imaging signal, an operation part for operating the start timing and stop timing of a continuous imaging period for continuously capturing the optical image and the background imaging timing for capturing the optical image including the background of the object at the previous time frame and/or next time frame of the continuous imaging period by a series of operations, and an image processing part for generating an image signal by performing image processing to the imaging signal. The adjustment part performs adjustment so that the focal length is shortened when the timing of the background imaging is operated. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an imaging apparatus having a user assistance function for obtaining a captured image desired by a user.

  In recent years, there has been a demand from the market for an imaging apparatus having a user assistance function for obtaining a desired captured image even if it is not a skilled user.

  For example, in the electronic still camera and the photographing method described in Patent Document 1 below, even when the user misses a shutter opportunity, the shutter timing is changed by pressing the shutter again with respect to the reproduced images before and after the shutter timing pressed by the user. Can be corrected.

  On the other hand, in the camera with a zoom function described in Patent Document 2 below, imaging at a plurality of focal lengths is automatically performed with a single operation, so that the focal length operated by the user is at the angle of view desired by the user. Even if not, a desired angle of view can be selected after imaging.

Japanese Patent No. 3713973 Japanese Patent No. 3915265

  Considering the user assistance function for obtaining a desired captured image by the user, when the user images a dynamic subject such as a sports player, the problem 1) missed a photo opportunity, and the captured image at the desired timing. Is not obtained. Problem 2) A captured image of a desired image frame is not obtained due to failure of the framing operation by the user (including camera shake). There are two issues.

  For example, in the electronic still camera and the photographing method described in Patent Document 1, with respect to the problem 1), the shutter timing can be corrected by pressing the shutter again with respect to the reproduced images before and after the shutter timing pressed by the user. However, for the problem 2), there is no function for correcting the image frame at the timing desired by the user.

  On the other hand, since the camera with a zoom function described in Patent Document 2 can select a desired angle of view after shooting for the problem 2), in order to obtain an image of a desired image frame, an image of this selected angle of view is used. In contrast, the image may be trimmed to a desired image frame. However, for the problem 1), there is no function for correcting the shutter timing in the image frame desired by the user.

  In view of the above-described problems 1) and 2), the present invention provides an imaging apparatus capable of selecting or correcting a captured image having a desired image frame or angle of view at a timing desired by a user after imaging. It is an object.

  An imaging apparatus according to an aspect of the present invention includes an optical system that generates an optical image from a subject, an adjustment unit that adjusts a focal length of the optical system, and photoelectrically converts the optical image to capture the image signal. An imaging unit to generate, and a start timing and a stop timing of a continuous imaging period in which the optical image is continuously captured, and the optical image including the background of the subject before and / or after the continuous imaging period. An operation unit for operating the timing of background imaging for imaging by a series of operations, and an image processing unit that performs image processing on the imaging signal to generate an image signal. The adjusting unit adjusts the focal length to be short when the timing of background imaging is operated.

  According to the present invention, there is an effect that a captured image at a timing desired by a user can be obtained.

  Further, according to the present invention, there is an effect that a captured image having an image frame or an angle of view desired by the user can be obtained.

1 is a block diagram illustrating a basic configuration of an imaging apparatus according to a first embodiment of the present invention. It is a figure which shows an example about the relationship between a series of operation by a user, and the state of the operation part in each operation, respectively. It is a flowchart which shows the operation procedure of the imaging device by the 1st Embodiment of this invention. It is a conceptual diagram which shows the basic concept of the imaging device by the 1st Embodiment of this invention. It is an image of a captured image obtained by unsuccessful imaging that is not intended by the user. It is an image image which shows an example of the captured image imaged in the continuous imaging period. It is an image image which shows an example of the captured image imaged by background imaging. FIG. 5 is an image showing an example of the composite image shown in FIGS. 1 and 4. FIG. It is an image image which shows an example of the synthesized image which performed the trimming which a user desires with respect to the synthesized image shown in FIG. It is a block diagram which shows the basic composition of the imaging device by the 2nd Embodiment of this invention. 6 is an image image in which the captured image group of FIGS. 6a to 6d is superimposed on the partial image of the background image shown in FIG. 8 is an image image showing an example of a synthesized moving image generated by synthesizing the moving image generated from the background image shown in FIG. 7 and the selected image group shown in FIGS. 6a to 6d. It is an image image which shows an example of the background moving image produced | generated from the background image shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1 is a block diagram showing a basic configuration of an imaging apparatus according to the first embodiment of the present invention.

  In FIG. 1, the imaging apparatus includes a variable focus lens (optical system) 10, a lens driver (adjustment unit) 11, a zoom ring 12, an image sensor (imaging unit) 13, an operation unit 14, and an image. The processing unit 15, the selection unit 16, and the synthesis unit 17 are configured.

  The variable focus lens 10 generates an optical image from a subject with a variable focal length, and outputs the optical image to the imaging surface of the image sensor 13. The lens driver 11 adjusts the focal length of the variable focus lens 10. The zoom ring 12 is for reflecting the focal length desired by the user to the lens driver 11, and outputs the rotation speed and rotation phase of the zoom ring 12 to the lens driver 11 from the user's operation on the zoom ring 12. To do. The zoom ring 12 is not limited to a ring shape, and may be a zoom lever, a zoom button, a zoom dial, or the like.

  The image sensor 13 photoelectrically converts and captures an optical image, generates an image signal, and outputs the image signal to the image processing unit 15. The operation unit 14 operates the image sensor 13 with a first operation for starting a continuous imaging period in which optical images are continuously captured and a second operation for stopping the continuous imaging period. When this second operation is operated, at the same time, the operation unit inputs timing of background imaging for capturing an optical image including the background of the subject to the lens driver. The focal length is adjusted by the lens driver to the shortest focal length (wide-angle end) of the variable focal length lens. The first operation and the second operation are performed by a series of operations by the user. A series of operations by the user will be described later with reference to FIGS. 2A to 2D and FIG.

  The image processing unit 15 performs image processing on the imaging signal to generate an image signal, outputs a plurality of frame image signals obtained in a continuous imaging period to the selection unit 16, and obtains an image signal (background) obtained at the time of background imaging. Image) is output to the combining unit 17. The selection unit 16 is for causing the user to select an arbitrary selection image from a plurality of image signals obtained in the continuous imaging period, and outputs the selection image to the synthesis unit 17. The synthesizer 17 synthesizes the selected image and the background image to generate a synthesized image.

  2a to 2d are diagrams each illustrating an example of a relationship between a series of operations performed by the user and the state of the operation unit 14 in each operation.

  First, FIG. 2a shows an unpressed state (unlocked) in which the operation unit 14 is not yet pressed. The lock is a mechanism that is temporarily fixed while the operation unit 14 is pressed. Next, FIG. 2b shows a half-pressed state (not locked), commonly referred to as half-press. This half-pressed state is a state in which the operation unit 14 is not locked, so the user needs to maintain the finger half-pressed. Here, if the user releases the finger, the state returns to the unpressed state in FIG. 2a again.

  FIG. 2c shows a fully-pressed state in which the button is pressed further deeper than the half-pressed state shown in FIG. 2b. When in the fully depressed state, the operation unit 14 is locked. Here, even if the user lifts his / her finger, as shown in FIG. Also, the unpressed state shown in FIG. 2a does not stay in the half-pressed state shown in FIG. 2b, but can be changed to the full-pressed state shown in FIG.

  FIG. 2d shows a state where the user has released his / her finger from the fully pressed state shown in FIG. 2c. As shown in FIG. 2d, this fully pressed state is locked (temporarily fixed). From the fully pressed (locked) state of FIG. 2d to the re-pressed state (unlocked) in which the user fully presses again, the appearance is as shown in FIG. 2c. At this time, if the user releases the finger, Again, it returns to the unpressed state shown in FIG. 2a.

  FIG. 3 is a flowchart showing an operation procedure of the imaging apparatus according to the first embodiment of the present invention.

  In FIG. 3, in this imaging apparatus, the continuous imaging period and the background imaging are controlled according to the above-described series of operations by the user (the state of the operation unit 14 in each operation).

  First, start from the start shown in FIG. At the time of this start, it is assumed that the state of the operation unit 14 described above is the unpressed state shown in FIG. Alternatively, a mechanism may be used in which the operation unit 14 is forcibly pushed when the power of the imaging apparatus is turned off.

  Next, in step S1, it is determined whether or not the operation unit 14 is in the half-pressed state (not locked) shown in FIG. 2b, or is not pressed in the state shown in FIG. 2a. If it is in the half-pressed state in step S1, the process proceeds to step S2.

  In step S2, for example, AE (automatic exposure control), AF (automatic focus control), AWB (automatic white balance control), face detection, blue sky detection, character detection, and the like are concentrated. When these controls are completed, the process proceeds to step S3. Also, in step S1, if the half-pressed state is not reached (FIG. 2a), the process also proceeds to step S3.

  In step S3, it is determined whether or not the operation unit 14 is in the fully pressed state as shown in FIG. 2c (fully pressed state) or FIG. 2d (fully pressed locked state). Here, if it is fully pressed, the process proceeds to step S4. If it is not fully depressed (FIG. 2a or 2b), the process proceeds to step S1.

  In step S4, the image sensor 13 starts a continuous imaging period at the effective pixel m. Then, the process proceeds to step S5. In step S5, the operation unit 14 in the fully-pressed locked state shown in FIG. 2d is re-pressed again by the user as shown in FIG. 2c, and then the operation unit 14 is unlocked. Then, again, it remains in this step S5 until it is determined to be in the non-pressed state shown in FIG. 2a. Here, if it is determined that the lock is released by the re-pressed state (that is, the non-pressed state), the process proceeds to step S6.

  In step S6, the continuous imaging period by the image sensor 13 is stopped. Then, the process proceeds to step S7. In step S7, the variable focus lens 10 shown in FIG. 1 is forcibly driven to the wide angle end (shortest focus). Then, the process proceeds to step S8.

  In step S8, the image sensor 13 performs background imaging at the effective pixel n (where n> m). Note that the effective pixel n at the time of background imaging is set to be larger than the effective pixel m of the continuous imaging period so that the resolution of the selected image and the background image at the time of image composition are approximately equal. Also, in the continuous imaging period, the number of effective pixels is reduced compared to background imaging because it is desired to increase the frame rate of the imaging signal for the purpose of improving the continuity of imaging. When the background imaging in step S8 is completed, a series of operation procedures by the user indicated from the start is completed, and the process proceeds to step S1 again.

  FIG. 4 is a conceptual diagram showing a basic concept of the imaging apparatus according to the first embodiment of the present invention.

  In FIG. 4, this conceptual diagram is based on the block diagram already shown in FIG. 1, and a series of operations when the user images the subject, and the variable focus lens 10 is controlled in conjunction with the operations. It is the conceptual diagram which added the explanatory note about what is done.

  First, the user frames the captured image frame while adjusting the angle of view (broken line 1) for the subject of interest of the user from among the subjects. This angle of view is adjusted by adjusting the focal length from the principal point (dashed line 2) to the focal point (dashed line 3) of the variable focus lens 10 through the lens driver 11 by a zoom ring operation by the user. Here, the focal length adjustment range is a range in which the principal point of the lens is movable from the telephoto end (dashed line 4) to the wide-angle end (dashed line 5). At this time, it is assumed that the operation on the operation unit 14 by the user is in the unpressed state shown in FIG.

  Next, after framing the desired captured image frame, the user puts the operation unit 14 in the fully pressed state shown in FIG. 2c without waiting for the target subject to reach the desired timing. Here, when the user lifts his / her finger, the full-press lock state shown in FIG. 2D is entered, and the continuous imaging period by the image sensor 13 is started. In this period, the user can take an image while changing the angle of view, or can take an image while changing the framing of the imaged image frame while fixing the angle of view. That is, the user performs moving body tracking of the captured image frame with respect to the subject of interest.

  Then, in this continuous imaging period, after the subject of interest reaches a desired timing, if the user again pushes the operation unit 14 into the re-pressed state (unlocked) shown in FIG. 2a returns to the unpressed state shown in FIG. 2a, and the continuous imaging period by the image sensor 13 is stopped. At this time, a LAST signal is output from the operation unit 14 to the lens driver 11.

  When the LAST signal is received by the lens driver 11, the focal length of the variable focus lens 10 is forcibly adjusted to the shortest focal length. That is, the principal point of the lens is driven (driven) to the wide-angle end, and is automatically adjusted from the imaging angle of view for the subject of interest adjusted by the user to the wide-angle end (broken line 6) including the background subject.

  When the wide-angle end drive of the varifocal lens 10 is completed, the image sensor 13 performs background imaging at the effective pixel n (where n> m). In this way, a series of operations by the user and the variable focus lens 10 are controlled in conjunction with the operations, and continuous imaging of the subject of interest and wide-angle imaging of the background subject are performed. Then, it waits for a continuous imaging period (full-press locked state shown in FIG. 2d) by a new imaging scene (including a re-shooting imaging scene by TAKE2).

  As described with reference to FIGS. 1 to 4, continuous imaging of the subject of interest is performed according to the user's intention, and wide-angle imaging (LAST) of the background subject is automatically performed by a series of operations by the user. . Then, the selected image is selected from the continuous imaging, and the image is synthesized with the background image. For example, the image synthesis is performed by reducing the selected image and aligning it with the background image, and replacing a part of the background image with the reduced selected image.

  Here, in view of the captured image according to the prior art, when the user captures a dynamic subject such as a sports player, the user misses a photo opportunity, and the captured image at a desired timing is not obtained, Due to a failure of the framing operation (including camera shake), a captured image of a desired image frame has not been obtained.

5a to 5c are image images of captured images obtained by unsuccessful imaging that the user did not intend when the user captured a scene of a children's athletic meet (competition) as a still image with an aspect ratio of 4: 3. is there.
FIG. 5 a is an image showing an example of a captured image when the user misses a photo opportunity.
FIG. 5b is an image showing an example of a captured image when the user has failed in the framing operation (including camera shake).
FIG. 5c is an image showing an example of a captured image when an obstacle subject that the user could not predict has occurred.

  In FIG. 5a, this image is a captured image after the child finishes the competition, and the captured image at a timing desired by the user is a scene where the child finishes in the first place or a scene immediately before the goal-in. Met.

  In FIG. 5 b, this image is a captured image at a timing desired by the user, and a scene in which a child finishes at first can be captured. However, the composition (image frame) of the image is mostly composed of the back of the head by a third party, and is not the composition desired by the user.

  In FIG. 5c, this image is an image taken at the timing immediately before the goal-in desired by the user, but at the moment of this imaging, a third party who was in front suddenly jumped against the user's prediction, The composition was such that the child, who is the subject of interest, was half hidden by the back of the head by the third party. This composition is not the composition desired by the user.

  In order to avoid the failed imaging according to the prior art, the imaging method and the captured image according to the first embodiment of the present invention will be sequentially described.

  6a to 6f are image images showing examples of captured images captured from the start of continuous imaging which is step S4 shown in FIG. 3 to the stop of continuous imaging which is step S6.

  In FIGS. 6 a to 6 f, these images are captured by a series of operations of the user when the user images a children's athletic meet (competition) and desires a still image with an aspect ratio of 4: 3. It is a continuous shot image (or progressive moving image) with an aspect ratio of 16: 9 generated during the continuous imaging period.

  6A is a captured image at the time of starting continuous imaging, and FIG. 6F is a captured image at the time of stopping continuous imaging. When this FIG. 6f is imaged, a LAST signal is output as shown in FIG. 4, and the wide-angle end drive of the variable focus lens 10 is automatically performed.

  Note that the change of the aspect ratio from 4: 3 to 16: 9 assumes an imaging apparatus that has both a moving image imaging function and a still image imaging function.

  FIG. 7 is an image illustrating an example of a captured image captured by the background imaging that is step S8 illustrated in FIG.

  In FIG. 7, the image in the central region of this image is shown to be substantially the same as FIG. 6f. This is because the background image is imaged at a timing immediately after the continuous imaging is stopped.

  FIG. 8 is an image showing an example of the composite image shown in FIGS. 1 and 4.

  In FIG. 8, this image is generated by image synthesis of the image of FIG. 6d selected by the user's intention and the image of FIG. FIG. 6d is a selection image selected from the plurality of images shown in FIGS. 6a to 6f by the selection unit 16 shown in FIGS.

  As shown in FIG. 8, the images are synthesized as if there were two children as the subject of interest. This is because the captured images obtained at two timings with different time series are combined in the same image frame.

  FIG. 9 is an image image showing an example of a composite image obtained by performing trimming desired by the user on the composite image shown in FIG.

  As shown in FIG. 9, even if the image is not necessarily a completed image at the time of image capture by the user and at the time of image capture, the image capture method up to image composition as described above and the trimming of the composite image for subsequent processing ( By applying (not shown), it is possible to obtain a captured image of an image at a timing desired by the user and an image frame desired by the user.

  Further, in FIG. 8, there is a problem that two children can be taken as the subject of interest, but this problem can be solved by performing trimming as shown in FIG.

  In the case where the composition is not solved by the above-described trimming, the image blurring process for the specific area may be performed in the post-processing.

  As described above, the imaging apparatus according to the first embodiment of the present invention can select or correct a captured image having a desired image frame or angle of view at a timing desired by the user after imaging.

(Second Embodiment)
To briefly explain the second embodiment, a background image is continuously geometrically converted (electronic zoom and / or electronic panning) to generate a moving image. This moving image is subjected to the above-described image combining to generate a combined moving image. Alternatively, a background moving image that is not subjected to image composition is generated.

  In the second embodiment described below, the basic configuration and operation of the imaging apparatus are the same as those in the first embodiment described above. Are denoted by the same reference numerals, illustration and detailed description thereof are omitted, and only different portions will be described.

  FIG. 10 is a block diagram showing a basic configuration of an imaging apparatus according to the second embodiment of the present invention.

  In FIG. 10, the imaging apparatus further includes a configuration of a moving image generation unit 20 in addition to the configuration of the imaging apparatus shown in the first embodiment.

  First, generation of the synthesized moving image shown in FIG. 10 will be described. The subject is continuously imaged by the user and, for example, a group of captured images as illustrated in FIGS. 6 a to 6 f is output to the selection unit 16. After imaging, the user selects captured images of a plurality of consecutive frames, for example, FIGS. The selected image group thus obtained is output to the moving image generation unit 20 and the synthesis unit 17.

  FIG. 11 is an image image in which the captured image group of FIGS. 6a to 6d is superimposed on the partial image of the background image shown in FIG.

  As shown in FIG. 11, the movement of the subject of interest (the child who runs in competition) is not so noticeable. However, when the captured image groups of FIGS. 6a to 6d are compared, it can be seen that the subject of interest is vertically blurred relative to the captured image frame. This is because the object of interest is not moving up and down, but the captured image frame is moving up and down due to camera shake of the user.

  Here, the moving image generation unit 20 shown in FIG. 11 performs a correction image for reducing the frequency of the motion of the image frame of the selected image group based on the respective image correlations of the selected image group (FIGS. 6a to 6d). Generate a frame. The method for lowering the frequency of the motion of the image frame is a method that applies general electronic image stabilization. This electronic camera shake correction is a correction that reduces image blurring by aligning images that are temporally close by image correlation. By this alignment, the high-frequency component of the motion of the image frame is removed and the frequency is lowered.

  While there is a problem that a correction image frame by general electronic image stabilization is smaller than an image frame at the time of imaging, a correction image frame for generating a synthesized moving image according to the second embodiment is used. The frame can be made larger than the image frame at the time of imaging within the image range of the background image.

  In addition, the moving image generating unit 20 generates a moving image by continuously geometrically converting the background image with respect to the corrected image frame. Then, the synthesizing unit 17 generates a synthesized moving image by sequentially synthesizing the moving image and the selected image group within the range of the correction image frame.

  12a to 12d are generated by synthesizing the moving image generated from the background image shown in FIG. 7 and the selected image group shown in FIGS. 6a to 6d within the range of the correction image frame. It is an image image which shows an example of the synthesized video image.

  Here, FIG. 12a is the same image as FIG. 6a. FIG. 12d is the same image as FIG. 6d. However, comparing FIGS. 12b and 12c with FIGS. 6b and 6c, it can be seen that the images are different. The planar phase of the image frame in FIG. 6b is in the phase of the broken line shown in FIG. 12b. Here, the plane phase refers to image frame blur that occurs as a process of a periodic phenomenon (camera shake). This image frame blur is aligned by the image correlation between FIG. 12a and FIG. 12b, and is corrected like a corrected image frame indicated by a solid line in FIG. 12b. The plane phase of the image frame in FIG. 6c is the phase of the broken line shown in FIG. 12c, and the corrected image frame shown in the solid line in FIG. 12c is generated by the image correlation between FIG. 12b (solid line) and FIG. Thus, the frequency of the image frame is reduced.

  As described above, FIGS. 12a to 12d are images stored in the range of the corrected image frame whose frequency has been lowered as described above, and the hand that was in the captured image frame (FIGS. 6a to 6d). Blur is corrected electronically.

  If it is a general electronic camera shake correction, the number of imaging samplings decreases in inverse proportion to the correction amount, so that the resolution of the image deteriorates. However, in the case of the camera shake correction using the synthesized moving image, since the image is partially compensated by the background image, it is possible to suppress degradation in resolution due to a decrease in the number of samplings for imaging.

  The corrected image frames shown in FIGS. 12a to 12d can be selected or corrected to a desired image frame or angle of view within the range of the background image shown in FIG.

  Next, generation of the background moving image shown in FIG. 10 will be described. When generating a background moving image, first, a background image captured at a wide angle by a series of operations by a user is input to the selection unit 16. Then, the user selects a plurality of image frames from the background image, and outputs the selected image frame group to the moving image generation unit 20.

  Subsequently, the moving image generation unit 20 generates a background moving image by continuously geometrically converting the background image based on the input selected image frame group. The background moving image is generated from the background image and does not require a composite image.

  13a to 13d are image images showing an example of the background moving image generated from the background image shown in FIG.

  In FIGS. 13a to 13d, the background moving image does not capture the subject of interest (a child who runs in competition) that the user pays attention to. However, when creating moving image (video) content, the presence of such a background moving image is convenient for allowing the content viewer to understand the content.

  Here, FIGS. 13a to 13d start from an image frame (FIG. 13a) in which the school building clock is zoomed in, and gradually zoom out as shown in FIGS. 13b and 13c to obtain an image frame of the entire school building (FIG. 13d). It reaches. This zoom-in and zoom-out is a continuous geometric transformation of the background image, that is, an image transformation equivalent to image processing generally referred to as electronic zoom and electronic panning.

  Then, after the background moving image according to FIGS. 13a to 13d generated in this manner is followed by the synthesized moving image according to FIGS. 12a to 12d, the completeness of the moving image content can be improved.

  As described above, the imaging apparatus according to the second embodiment of the present invention is a moving image including a timing desired by the user after imaging, and a desired image frame or angle of view (including suppression of camera shake). A moving image can be selected or corrected.

  The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design changes and the like without departing from the gist of the present invention. For example, in the above-described embodiment, the configuration is such that the focal length of the variable focal length lens is adjusted to the shortest focal length at the time of background imaging, but the configuration is limited to this as long as the focal length is shorter than that at the time of continuous shooting. is not.

  Further, the above-described embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent requirements are deleted from all the constituent requirements shown in the embodiment, the problem described in the column of the problem to be solved by the invention can be solved, and the effect described in the column of the effect of the invention Can be obtained as an invention.

10 Variable focus lens (optical system)
11 Lens driver (adjustment unit)
12 Zoom ring 13 Image sensor (imaging part)
14 operation unit 15 image processing unit 16 selection unit 17 composition unit 20 image generation unit

Claims (6)

An optical system for generating an optical image from a subject;
An adjustment unit for adjusting the focal length of the optical system;
An imaging unit that photoelectrically converts the optical image and generates the imaging signal;
Start timing and stop timing of a continuous imaging period for continuously capturing the optical image, and background imaging timing for capturing the optical image including the background of the subject before and / or after the continuous imaging period , In a series of operations,
An image processing unit that performs image processing on the imaging signal to generate an image signal;
With
The adjustment device adjusts the focal length so that the focal length is shortened when the timing of background imaging is operated. A selection unit for selecting an arbitrary selected image from the plurality of image signals obtained in the continuous imaging period;
A synthesizing unit that synthesizes the selected image and a background image obtained at the time of background imaging to generate a synthesized image;
The imaging apparatus according to claim 1, further comprising: A moving image generating unit that continuously generates a moving image by geometrically converting the background image;
The moving image generation unit generates a corrected image frame that lowers the frequency of the image frame of the selected image based on the image correlation of the selected images.
The imaging apparatus according to claim 2, wherein the synthesizing unit generates a synthesized moving image by synthesizing the selected image and the background image within a range of the correction image frame. A selection unit for selecting a plurality of image frames from the background image obtained by the background imaging;
Based on the selected image frame, a moving image generation unit that continuously converts the background image to generate a background moving image;
The imaging apparatus according to claim 1, further comprising: During the period in which the continuous imaging period is operated, the imaging unit reads out the effective pixel number m,
When the background imaging is operated, the imaging unit reads the effective pixel number n,
The imaging device according to claim 1, wherein the number of effective pixels is m <n. The effective pixel m area has an aspect ratio of about 16: 9,
The imaging apparatus according to claim 5, wherein an aspect ratio of the effective pixel n region is approximately 4: 3.