JP2007274031A - Device and program for photographing motion picture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce visual sense of incongruity caused by a change in a field angle depending on camera shake correction by changing previous margin in photographing motion pictures when the camera shake correction is enabled. <P>SOLUTION: In the motion picture photographing mode, a video image (full field angle) formed on an imaging sensor (CCD, CMOS) 16 is first captured while a field angle is 100%, i.e. the previous margin is zero, and the video image is displayed on a display unit 25. When a motion picture photographing start operation is performed, a display unit 25 displays a cutout image while gradually decreasing a segmented field angel. When a user designates the level of camera shake correction using a key operating section 27, the segmented field angle is increased and decreased depending on the designated operation quantity, and the level of the camera shake correction is changed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a moving image shooting apparatus and a moving image shooting program for performing camera shake correction.

  Conventionally, a digital camera has a function of shooting a moving image in addition to a still image. There are roughly two types of camera shake correction in moving image shooting. The first camera shake correction (mechanical camera shake correction) is based on the output signal from the acceleration / gyro sensor that detects the vibration of the digital camera housing due to camera shake, and shakes the image sensor or the lens to shake the camera shake. It is a technology to cancel. The second camera shake correction (electronic camera shake correction) takes a picture while cutting out a part of the entire angle of view of the image obtained from the image sensor, and swings the cutout position in response to the camera shake. This is a recording technique (see, for example, Patent Document 1).

JP 2004-248171 A

  However, the above-described mechanical image stabilization has a problem that the lens becomes large and the cost increases. In addition, in the above-described electronic camera shake correction, when a moving image is shot with camera shake correction being effective, a field angle is lost compared to when camera shake correction is disabled. As shown in FIG. 12, the electronic camera shake correction is a method in which a part indicated by a frame 110 is cut out from the total angle of view 100 of the CCD, and the cutout position is recorded while being vibrated back and forth and left and right. The shootable angle of view is narrower than when correction is off. In the illustrated example, the pre-margin is 20%, and the recording field angle (cutting field angle) is 80%. Since camera shake correction is not necessary in some cases, the loss of 20% is too much, and there are cases where it is desired to shoot with the pre-margin reduced to 10% or less, or 5% or less. However, in the conventional digital camera, the pre-margin is constant in mounting, and there is no room for the user to select at present.

  Further, as described above, since the disappearance of the angle of view occurs, as shown in FIG. 13 (a), the video (through display) displayed before the start of moving image shooting and as shown in FIG. 13 (b). In addition, the angle of view with the video (through display) displayed during moving image shooting changes instantaneously. For this reason, immediately after the start of video recording, the user feels as if the video has been zoomed in an instant, and there is a problem that the operation is uncomfortable.

  Accordingly, an object of the present invention is to provide a moving image shooting apparatus and a moving image shooting program that can reduce visual discomfort associated with a change in the angle of view due to the validity / invalidity of camera shake correction. It is another object of the present invention to provide a moving image shooting apparatus and a moving image shooting program that can change pre-merging during moving image shooting when camera shake correction is enabled.

  In order to achieve the above object, the inventions according to claims 1 and 6 cut out a video from a captured video at a predetermined angle of view, expand or reduce the cut video to a predetermined display size, When the image is displayed by performing the blur correction by changing the cutout position of the image according to the image blur, the blur correction is invalidated and the angle of view at which the image is clipped is set to the first angle of view. When the operation state is switched to the second operation state in which the blur correction is enabled and the angle of view for cutting the image is set to the second angle of view, the second angle of view is changed from the first angle of view. The speed of change of the angle of view from the angle of view or the second angle of view to the first angle of view is controlled.

  Further, as a preferred aspect, for example, as in claim 2, in the moving image photographing apparatus according to claim 1, the first operation state is that the entire image captured by the imaging unit is defined as the first angle of view. The second operation state is a motion picture shooting operation in which the angle of view excluding the blur correction blank portion with respect to the first angle of view is the second angle of view. It may be.

  Further, as a preferred aspect, for example, as in claim 3, in the moving image photographing apparatus according to claim 1, the first operation state is that the entire image captured by the imaging unit is defined as the first angle of view. In the second motion state, the second angle of view is the angle of view excluding the blur correction blank portion with respect to the first angle of view. It may be a moving image shooting operation with correction.

  Further, as a preferable aspect, for example, as described in claim 4, the moving image photographing apparatus according to any one of claims 1 to 3, further comprising an instruction unit capable of instructing an increase / decrease of a cutting angle of view by the cutting unit. You may do it.

  Further, as a preferable aspect, for example, as in claim 5, in the moving image photographing apparatus according to any one of claims 1 to 4, blur correction instruction means for instructing validity / invalidity of blur correction by the blur correction means is provided. You may make it comprise.

According to the present invention, a video is clipped from a captured video at a predetermined angle of view, the cropped video is enlarged or reduced to a predetermined display size, and a video cutout position is set according to image blurring of the video. When the image is displayed by performing the blur correction by changing, the blur correction is invalidated, the first operation state in which the angle of view for cutting the image is set to the first angle of view, and the blur correction is enabled. In addition, when switching the view angle at which the image is cut out to the second operation state in which the view angle is set to the second view angle, the first view angle to the second view angle or the second view angle to the first view angle is set. Since the change speed of the angle of view to the corner is controlled, there is an advantage that it is possible to reduce the visual discomfort associated with the change in the angle of view due to the validity / invalidity of camera shake correction.
Further, since it is possible to instruct increase / decrease of the cut angle of view, there is an advantage that the pre-merging at the time of moving image shooting when camera shake correction is enabled can be changed.

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

A. First embodiment A-1. Configuration of First Embodiment FIG. 1 is a block diagram showing a configuration of a digital camera according to a first embodiment of the present invention. In the figure, the image acquisition unit 10 includes a lens 11, a shutter 12, and an LPF 13. The lens 11 is a normal optical lens and includes a lens group in which aspherical lenses are stacked. The shutter 12 is a so-called mechanical shutter that is operated by a driver 14 driven by the control unit 20 when a shutter button is operated. Depending on the digital camera, a mechanical shutter may not be provided. In the case of a model equipped with a retractable lens structure and a mechanical zoom, these drivers are also controlled by the driver 14. The LPF 13 is a crystal low-pass filter and is mounted to prevent the occurrence of moire.

  Next, the analog signal processing unit 15 includes an image sensor (CCD, CMOS) 16, a sampling / signal amplification processing unit 17, and an A / D converter 18. The imaging sensor 16 forms a subject image (image), and converts the intensity of light of each color of RGB into a current value. The sampling / signal amplification processing unit 17 performs correlated double sampling processing and signal amplification processing for suppressing noise and color unevenness. The A / D converter 18 is also called an analog front end, and converts the sampled / amplified analog signal into a digital signal (converts each color of RGB and CMYG into 12-bit data and outputs it to the bus line).

  Next, the control unit (CPU) 20 controls the entire digital camera 1 (imaging device) according to a program stored in a program memory described later. In particular, in the first embodiment, detection of the on / off state of camera shake correction, adjustment control of the cutting angle of view according to the on / off state of camera shake correction, and the like are performed. In particular, even when the camera shake correction is on, the control unit (CPU) 20 starts shooting with the same pre-margin as zero when the camera shake correction is off (cut angle of view 100%). Then, each part is controlled so that the pre-margin is gradually changed toward 20% (cutting angle of view 80%). Further, the control unit (CPU) 20 allows a user such as a cross key of the key operation unit 27 after the camera shake correction margin reaches a default value (pre-margin is 20%: cut angle of view 80%) in moving image shooting. The amount of camera shake correction is variable according to the operation.

  The preview engine 22 is stored in the image buffer 26 immediately after detection of digital data input via the image acquisition unit 10 and the analog signal processing unit 15 in the recording mode (also referred to as recording mode or photographing mode) or shutter operation detection. Thinning processing is performed in order to display the digital data and the digital data stored in the image memory 31 on the display unit 25. The D / A converter 23 converts the digital data thinned out by the preview engine 22 and outputs it to the driver 24 at the subsequent stage.

  The driver 24 includes a buffer area for temporarily storing digital data displayed on the display unit 25 at the subsequent stage, and drives the display unit 25 based on a control signal input via the key operation unit 27 and the control unit 20. The display unit 25 includes a color TFT liquid crystal, an STN liquid crystal, or the like, and displays a preview image, image data after shooting, a setting menu, and the like.

  The image buffer 26 temporarily stores digital data immediately after photographing until it is input via the analog signal processing unit 15 or the digital signal processing unit 28 and passed to the digital signal processing unit 28. The key operation unit 27 includes a shutter button, a recording / playback mode selection slide switch, a menu button, a cross key (determined by pressing the center), and the like. In particular, in the first embodiment, it is possible to instruct the strength of camera shake correction in multiple stages by operating a predetermined key (for example, a cross key).

  The digital signal processing unit 28 performs white balance processing, color processing, gradation processing, contour emphasis, conversion from RGB format to YUV format, YUV format for digital data input via the analog signal processing unit 15. To JPEG format. The image compression / decompression processing unit 29 compresses and encodes the digital data input via the digital signal processing unit 28 into the JPEG format, generates a motion JPEG format movie file, or converts the motion JPEG format movie file to MPEG. It is converted into a moving image file of a format, or in a reproduction mode, a moving image file in JPEG format, motion JPEG format, or MPEG format is expanded.

  The program memory 30 stores various programs loaded on the control unit 20, EV values in the best shot function, color correction information, and the like. The image memory 31 stores image data temporarily stored in the image buffer 26, digital data converted into various file formats, moving image data, and the like. The card I / F 32 controls data exchange between the external recording medium 33 and the digital camera body.

  The external recording medium 33 is a detachable recording medium composed of a compact flash (registered trademark), a memory stick, an SD card, or the like. The external connection I / F 34 includes a USB connector slot and the like, is connected to a personal computer or the like, and is used for transferring photographed image data. The RAM 35 stores various parameters necessary for control of the control unit (CPU) 20, various parameters at the time of night scene shooting (gain (ISO sensitivity), aperture, shutter speed, threshold for image composition, weight, etc.), and the like. .

A-2. Operation of First Embodiment Next, the operation of the first embodiment described above will be described. 2 to 4 are flowcharts for explaining the operation of the digital camera according to the first embodiment. 5 and 6 are schematic views showing display examples before and during moving image shooting according to the first embodiment. In the following description, it is assumed that the final pre-margin is 20% and the default value of the cropping angle is 80%.

  When the moving image shooting mode is set, the analog signal processing unit 15 takes in an image (full angle of view) formed on the image sensor (CCD, CMOS) 16 and performs predetermined signal processing. As shown, through display is performed on the display unit 25 (step S10). Before the start of photographing, the angle of view is 100%, that is, the pre-margin is zero. In this state, when the user performs a moving image shooting start operation (step S12), it is determined whether or not camera shake correction is set to the on state (step S14). If the camera shake correction is set to the off state, the process proceeds to a moving image shooting process in which normal camera shake correction is not performed (step S16).

  On the other hand, when the camera shake correction is set to the on state, the cut angle of view is set to 100%, that is, the pre-margin is set to zero (step S18). Next, a plurality of frames from the analog signal processing unit 15 are buffered (step S20), a target frame is selected (step S22), and a motion vector is detected from a difference from an adjacent frame (step S24). Next, an image clipping offset (adjusted values before and after the clipping position) is calculated according to the motion vector (step S26), and the image is clipped at the crop angle according to the image clipping offset (step S28). ), The cut-out image is displayed on the display unit 25 (step S30). At the time of moving image shooting, as shown in the figure, a slider 40 indicating how much the camera shake correction is strong or weak is displayed. Immediately after the start of moving image shooting, the angle of view is 100%, that is, the pre-margin is zero, so the knob of the slider 40 is at the lowest blur correction OFF position.

  Next, the image is expanded to the recording resolution (step S32), and it is determined whether or not the cut angle of view is a default value (step S34). If the cut angle of view does not reach the default value (80%) which is the final angle of view, the cut angle of view is decreased by -1% (step S36). Next, it is determined whether or not it is a buffer end (step S38). If it is not a buffer end, the next frame is selected (step S40). Next, it is determined whether or not any operation or shooting has been completed (step S42). If shooting has been continued, the process returns to step S22 to detect a motion vector, calculate an offset, and use the updated cut angle of view. Cut out and cut the cut angle of view by -1%.

  On the other hand, if it is a buffer end, the cut out plural frame image is encoded and recorded in the image memory 31 (step S44). Thereafter, the process returns to step S18, and buffering of a plurality of frames, detection of a motion vector, calculation of an offset, clipping at the updated clipping angle, and reduction of the clipping angle by −1% are performed.

  The above-described processing is performed until the cut angle of view reaches a default value (80%). As a result, the angle of view immediately after the start of imaging is gradually reduced by −1% from 100% to 80%. In other words, shooting is started in a state where the pre-margin is zero, and the angle of view is gradually changed toward a predetermined pre-margin (20%) ratio. As a result, as shown in FIGS. 6 (a) and 6 (b), an image as if taken while slowly digital zooming is recorded (displayed), and there is no sense of incongruity such as zooming in an instant. In addition, the camera shake correction is gradually strengthened as the pre-margin increases.

  Next, when the cut angle of view reaches the default value (80%), a plurality of frames from the analog signal processing unit 15 are buffered (step S46), the target frame is selected (step S48), and the adjacent frames A motion vector is detected from the difference between (step S50). Next, an image cropping offset (adjusted values before, after, left and right of the cropping position) is calculated according to the motion vector (step S52). Is displayed on the display unit 25 (step S56).

  Next, the image is expanded to the recording resolution (step S58), and it is determined whether or not an operation for changing camera shake correction (for example, an operation using the cross key) has been performed (whether or not the pre-margin has been changed) (step S60). ). If there is an operation for increasing the camera shake correction, the cropping angle of view is set to -2% (step S62). If there is an operation for reducing the camera shake correction (intensity +), the cropping field angle is set. Is set to + 2% (step S64), and if the camera shake correction change operation is not performed, the cut angle of view is not changed.

  As a result, when there is an operation for reducing the camera shake correction during moving image shooting, as shown in FIGS. 7A and 7B, the crop angle is increased while the camera shake correction is performed. When there is an operation for strengthening, the cut angle of view is reduced as shown in FIGS. In this way, by changing the pre-margin continuously and variably, the image and operation feeling are as if the digital zoom magnification is continuously changed. Therefore, even though the camera shake correction is turned on / off and the camera shake correction amount is changed during moving image shooting, an unnatural feeling does not occur in the shot moving image.

  Next, it is determined whether or not it is a buffer end (step S66). If it is not a buffer end, the next frame is selected (step S68). Next, it is determined whether or not any operation or shooting has been completed (step S70). If shooting has been continued, the process returns to step S50 to detect a motion vector, calculate an offset, and use the updated cut angle of view. Cropping, zooming in and out of the cropping angle by image display, camera shake correction change operation (pre-margin change).

  On the other hand, if it is a buffer end, the cut out image of a plurality of frames is encoded and recorded in the image memory 31 (step S72). After that, the process returns to step S46, and a plurality of frames are buffered, a motion vector is detected, an offset is calculated, an image is cropped at an updated crop angle, an image is displayed, and a crop angle is changed by an image stabilization correction operation (pre-margin change). Scale up and down.

  In step S42 or step S72, if there is an operation for ending the shooting, the recorded image is saved as a moving image file (step S74), and then the process ends.

  7A to 7C, when the slider 40 is at the lower end, the camera shake correction is off and the pre-margin is zero. The sacrificing angle of view (pre-margin) increases as the slider 40 is moved upward, but the camera shake correction is more strongly applied to the amount of camera shake displacement. be able to. Further, when the slider 40 is in the uppermost position, the upper limit of 20% of the angle of view of the present embodiment is sacrificed, but the camera shake correction effect is maximized.

  In the first embodiment described above, even when the camera shake correction is on, shooting is started with the pre-margin being zero (cutting angle of view 100%), which is the same as when the camera shake correction is off. Since the pre-margin is changed toward 20% (cutting angle of view 80%), the video as if it was taken with slow digital zooming is recorded (displayed) in an instant. No discomfort like zooming.

  In addition, after the camera shake correction margin reaches the default value (pre-margin is 20%: cut angle of view 80%), the user can freely change the strength of the camera shake correction by operating the cross key or the like. . In addition to wiping out the unnaturalness of the image, you can prioritize the angle of view while prioritizing the image in real time, prioritize the degree of camera shake correction, and freely change the priority while shooting. .

B. Second Embodiment Next, a second embodiment of the present invention will be described. In the second embodiment, at the display stage before the start of photographing, the image is displayed with the same angle of view as that in which camera shake correction has already been performed (saved angle of view: 80%, pre-margin: 20%). During shooting, camera shake correction can be turned on / off. When camera shake correction is turned on / off, the angle of view is not changed immediately, but the angle of view is gradually changed. Display (record) as if zoomed in / out. As a result, the angle of view does not change abruptly at the start of movie shooting or during on / off operation during movie shooting, and there is no unnaturalness in the recorded movie, and the zoom magnification is simply changed. Record as if it were just. The configuration of the digital camera is the same as in FIG.

  Next, the operation of the above-described second embodiment will be described. Here, FIGS. 8 to 10 are flowcharts for explaining the operation of the digital camera according to the second embodiment. FIG. 11 and FIG. 12 are schematic views showing display examples before moving image shooting, during moving image shooting, or when an on / off state of camera shake correction is switched according to the second embodiment.

  When the moving image shooting mode is set, first, the cropping angle of view is set to 80%, that is, the same angle of view as when the camera shake correction is set to the on state (step S80). Next, in the analog signal processing unit 15, the image is cropped from the image (full angle of view) imaged on the image sensor (CCD, CMOS) 16 with the angle of view (80%) (step S 82), and is displayed on the display unit 25. Through display is performed (step S84). Therefore, at the stage before the start of photographing, as shown in FIG. 10A, the image is displayed with the same angle of view as when the camera shake correction is effective.

  Next, when the user performs a moving image shooting start operation (step S86), it is determined whether or not camera shake correction is set to an on state (step S88). If camera shake correction is set to ON, a plurality of frames from the analog signal processing unit 15 are buffered (step S90), a target frame is selected (step S92), and a difference from an adjacent frame is determined. A motion vector is detected from (step S94).

  Next, an image cropping offset (adjusted values before, after, left and right of the cropping position) is calculated according to the motion vector (step S96), and the image is cropped at a cropping angle according to the image cropping offset (step S98). ), The cut-out image is displayed on the display unit 25 (step S100). When camera shake correction is turned on from the beginning, the angle of view is the default value of 80%, so immediately after the start of moving image shooting, the angle of view is displayed at the same angle as the image before starting moving image shooting. Will be. That is, the angle of view does not change abruptly at the start of moving image shooting.

  Next, the image is expanded to the recording resolution (step S102), and it is determined whether or not the cut angle of view is a default value (step S104). If the cut angle of view does not reach the default value (80%) which is the final angle of view, the cut angle of view is decreased by -1% (step S106). This process is executed when camera shake correction is switched from the off state to the on state. When camera shake correction is on from the beginning, the cut angle of view is already a default value and is not executed.

  Next, it is determined whether or not it is a buffer end (step S108). If it is not a buffer end, the next frame is selected (step S110). Next, it is determined whether or not any operation or shooting has been completed (step S112). If shooting has been continued, the process returns to step S94 to detect a motion vector, calculate an offset, and use the updated cut angle of view. Cut out. If camera shake correction is switched from the off state to the on state, and the cut angle of view does not reach the default value (80%) that is the final angle of view, − Reduce by 1%.

  On the other hand, if it is the buffer end, the clipped multiple frame image is encoded and recorded in the image memory 31 (step S114). Thereafter, the process returns to step S88, and it is determined whether or not camera shake correction is in an on state (whether there has been a camera shake correction on / off switching operation). If the user has not switched on / off of camera shake correction during shooting, that is, if camera shake correction remains on, the above-described processing is repeated.

  On the other hand, when the camera shake correction is switched off by the user, the image is cut out at the cut-out angle of view at that time (step S120), and the cut-out image is displayed on the display unit 25 (step S122). At this time, the angle of view remains the same as when camera shake correction was switched from the ON state. become. That is, the angle of view does not change abruptly even when camera shake correction is switched from the on state to the off state.

  Next, the image is expanded to the recording resolution (step S124), and it is determined whether or not the cut angle of view is 100% (full angle of view) (step S126). If the cut angle of view does not reach the final view angle of 100%, the cut angle of view is incremented by 1% (step S128). It is not executed when the cut angle of view has reached the final view angle of 100%.

  Next, the cropped image is encoded and recorded in the image memory 31 (step S130), and it is determined whether or not any operation or photographing is finished (step S132). If photographing is continued, step S88 is performed. Returning to FIG. As a result, the cropping angle of view (80% to 100% angle of view) during moving image shooting with camera shake correction turned on is gradually increased by + 1% to reach 100%, which is the total angle of view. . In other words, the angle of view gradually changes toward a state where the pre-margin is zero. As a result, as shown in FIGS. 11A to 11D, an image as if it was shot while being slowly digital zoomed (zoomed out) is recorded (displayed), and zooming is performed in an instant. There is no sense of discomfort.

  On the other hand, if camera shake correction is turned on by the user during moving image shooting with camera shake correction turned off, the process proceeds from step S88 to step S90. Also in this case, immediately after the switching, the image obtained by cutting out the image at the current cutting angle of view is displayed on the display unit 25, so that the angle of view does not change abruptly. Then, an image as if it was shot while slowly zooming in digitally in the reverse direction shown in FIGS. 11A to 11D is recorded (displayed), and there is a sense of incongruity that zooms in a moment. Does not occur. In addition, the camera shake correction gradually increases as the angle of view decreases (the pre-margin increases).

  On the other hand, if there is an operation for ending shooting in step S112 or step S132, the recorded image is saved as a moving image file (step S116), and then the processing ends.

  In the second embodiment described above, the pre-margin is displayed in a state of 20% (cutting angle of view 80%), which is the same as the state in which the camera shake correction is performed before photographing, and the camera shake correction is turned on / off. The pre-margin is gradually adjusted toward the target value (20% when camera shake correction is on: 80% crop angle, 0% when crop is off: 100% crop angle). Since it is changed, a video image as if it was taken while slowly digital zooming is recorded (displayed), and there is no sense of incongruity as if zooming in a moment.

  In addition, it is possible to switch the camera shake on / off state during movie recording. When the camera shake on / off operation is performed, the field angle is gradually changed instead of immediately changing the field angle. Since it is displayed (recorded) as if it was slowly zoomed in / out, the angle of view does not change abruptly even during on / off operations during movie shooting, and the recorded movie is not There is no naturalness, and recording (display) can be performed as if the zoom magnification was simply changed.

  In the second embodiment described above, as in the first embodiment described above, the slider 40 is displayed, and the strength of camera shake correction can be changed by a user operation using the cross key of the key operation unit 27 or the like. You may make it do.

  In the first and second embodiments described above, the case of switching from the monitor mode to the shooting mode has been described. However, the present invention is not limited to this, and when switching from the shooting mode to the monitor mode or from the shooting mode in which camera shake is effective. This may be applied when switching to a shooting mode in which camera shake is disabled or when switching from a shooting mode in which camera shake is disabled to a shooting mode in which camera shake is enabled.

It is a block diagram which shows the structure of the digital camera by 1st Embodiment of this invention. 4 is a flowchart for explaining the operation of the digital camera according to the first embodiment. 4 is a flowchart for explaining the operation of the digital camera according to the first embodiment. 4 is a flowchart for explaining the operation of the digital camera according to the first embodiment. In this 1st Embodiment, it is a schematic diagram which shows the example of a display before video recording and during video recording. In this 1st Embodiment, it is a schematic diagram which shows the example of a display before video recording and during video recording. FIG. 6 is a schematic diagram illustrating a display example during moving image shooting when there is an intensity adjustment for camera shake correction in the first embodiment. It is a flowchart for demonstrating operation | movement of the digital camera by this 2nd Embodiment. It is a flowchart for demonstrating operation | movement of the digital camera by this 2nd Embodiment. It is a flowchart for demonstrating operation | movement of the digital camera by this 2nd Embodiment. In this 2nd Embodiment, it is a schematic diagram which shows the example of a display before video recording and during video recording. In this 2nd Embodiment, it is a schematic diagram which shows the example of a display at the time of switching the on / off state of camera-shake correction. It is a schematic diagram which shows the video recording (example of a display) at the time of camera shake correction by a prior art. It is a schematic diagram which shows the example of a display before video recording by a prior art, and video recording.

Explanation of symbols

1 Digital Camera 10 Image Acquisition Unit 11 Lens 12 Shutter 13 LPF
DESCRIPTION OF SYMBOLS 14 Driver 15 Analog signal processing part 16 Imaging sensor 17 Sampling / signal amplification processing part 18 A / D converter 19 Flash 20 Control part 22 Preview engine 23 D / A converter 24 Driver 25 Display part 26 Image buffer 27 Key operation part 28 Digital signal Processing unit 29 Image compression / decompression processing unit 30 Program memory 31 Image memory 32 Card I / F
33 External recording medium 34 I / F for external connection
35 RAM
40 slider

Claims (6)

A video shooting device that displays an image captured by performing camera shake correction,
Imaging means for imaging video;
Video display means for sequentially displaying videos sequentially captured by the imaging means;
When displaying the video by the video display means, the video is clipped at a predetermined angle of view from the video imaged by the imaging means, and a cutting means for expanding or reducing the cut video to a predetermined display size;
A blur correction unit that performs blur correction by changing a cutout position of the video by the cutout unit according to an image blur of the video when displaying the video by the video display unit;
The first operation state in which the blur correction by the blur correction unit is invalidated and the angle of view by which the cropping unit cuts the video is set to the first angle of view, and the blur correction by the blur correction unit is enabled and the Switching means for switching between a second operating state in which the angle of view by which the clipping means cuts the video is set to the second angle of view;
When the operation state is switched by the switching unit while the image is continuously displayed by the image display unit, the second view angle from the first view angle or the second view angle from the second view angle. An angle-of-view control means for controlling the rate of change of the angle of view to one angle of view. The first operation state is a monitor display operation in which the entire image captured by the imaging unit is the first angle of view.
The second operation state is a moving image shooting operation in which an angle of view excluding the blur correction blank portion with respect to the first angle of view is the second angle of view. Item 3. A moving image photographing apparatus according to item 1. The first operation state is a moving image shooting operation without blur correction in which the entire image captured by the imaging unit is the first angle of view.
The second operation state is a moving image shooting operation with blur correction in which the angle of view excluding the blur correction margin portion with respect to the first angle of view is the second angle of view. The moving image photographing apparatus according to claim 1.   4. The moving image photographing apparatus according to claim 1, further comprising an instruction unit that can instruct an increase / decrease of a cutting angle of view by the cutting unit.   5. The moving image photographing apparatus according to claim 1, further comprising a blur correction instructing unit that instructs validity / invalidity of blur correction by the blur correction unit. A video shooting program that displays images taken with camera shake correction,
On the computer,
An imaging function to capture images,
A video display function for sequentially displaying images that are sequentially captured,
When displaying the video, a cutting function for cutting the video at a predetermined angle of view from the captured video and expanding or reducing the cut video to a predetermined display size,
A blur correction function for performing blur correction by changing the cutout position of the video according to the image blur of the video when displaying the video;
The first operation state in which the blur correction is disabled and the angle of view for cutting the image is set to the first angle of view, and the angle of view for cutting the image and the angle of view for cutting the image is set to the second angle of view. A switching function for switching between the second operating state set to
When switching the operation state in a state where the video is continuously displayed, the image from the first angle of view to the second angle of view or from the second angle of view to the first angle of view. A video shooting program characterized by realizing an angle-of-view control function for controlling the angle change speed.

Images