JP2009246468A - Photographing device and control method of photographing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a photographing device which enables a photographer to recognize the shake amount of generated hand shake and recognize whether or not it is within an allowable range, and to provide a control method of the photographing device. <P>SOLUTION: On a through image 84 displayed on an LCD 18, an auxiliary frame 80 for hand shake recognition is displayed by a hand shake recognition auxiliary frame display part 30A on the basis of the control of a hand shake allowing condition setting part 28 (step 102), a hand shake amount display mark 82 is displayed by a hand shake amount display part 30B (step 104), the amount and the direction of the hand shake detected in a hand shake detection part 22 are acquired (step 106), and the hand shake amount display mark 82 is moved to a position corresponding to the hand shake (step 108). <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a photographing apparatus and a method for controlling the photographing apparatus, and more particularly to a photographing apparatus and a photographing method for preventing a photographed image from becoming a blurred image.

  Generally, when a subject is photographed by a photographing device, a subject image is photographed by pressing a shutter button provided in the photographing device by a photographer.

  At the time of shooting, when the shutter button is pressed, a so-called camera shake in which the subject image is blurred due to the movement of the shooting device may occur.

  Therefore, a technique is known in which camera shake signals obtained from an angular velocity sensor or the like are sampled at predetermined intervals, a correction amount for reducing the influence of camera shake is calculated from the sampled values, and the camera shake is corrected by the calculated correction amount. (For example, refer to Patent Document 1).

  Further, a technique is known in which a face portion of a subject is detected from an image, an amount of camera shake is obtained based on a variation in each part of the face, and the image is corrected based on the obtained amount of camera shake (see, for example, Patent Document 2).

Furthermore, a technique is known in which a photographer can recognize the occurrence of camera shake on a display device provided in the imaging device by enhancing the camera shake by making the direction and movement amount of the generated camera shake more extreme. (See, for example, Patent Document 3).
JP 2005-217519 A JP 2004-359154 A JP 2005-210392A

  However, in the above-described conventional technique, the subject image (for example, a through image) displayed on a display device such as a liquid crystal display provided in a photographing device such as a digital camera causes camera shake that is not noticeable by the photographer. The photographed image may be a blurred image.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a photographing apparatus capable of recognizing the amount of camera shake that has occurred, and capable of recognizing whether or not it is within an allowable range, and a method for controlling the photographing apparatus. .

  In order to achieve the above object, the imaging apparatus according to claim 1, an imaging unit that images a subject, a display unit that displays an image based on image data of a subject image captured by the imaging unit, and the imaging A camera shake detection means for detecting the direction and amount of camera shake that occurs during imaging by the means, and a camera shake recognition auxiliary frame for displaying a camera shake recognition auxiliary frame indicating an acceptable range of camera shake on the display image displayed on the display means The amount of camera shake that displays a predetermined mark or a cutout image obtained by cutting out a part of the display image at a position corresponding to the direction and amount of camera shake detected by the auxiliary frame display unit and the camera shake detection unit on the display image And a display means.

  The imaging unit images the subject, and the display unit displays an image based on the image data of the subject image captured by the imaging unit. The camera shake detection means detects the direction and amount of camera shake that occurs during imaging by the imaging means. The camera shake recognition auxiliary frame display means displays the camera shake recognition auxiliary frame indicating the allowable range of camera shake on the display image displayed on the display means. The camera shake amount display means displays an image obtained by cutting out a predetermined mark or a part of the display image at a position corresponding to the direction and amount of camera shake detected by the camera shake detection means on the display image.

  On the display image such as the through image displayed on the display means, the camera shake recognition auxiliary frame display means can display the allowable range of camera shake, and the camera shake amount display means can display a predetermined mark or cut-out image. Since the direction and amount of camera shake that has occurred can be displayed, the photographer can recognize the amount of camera shake that has occurred, based on the positional relationship between the camera shake recognition auxiliary frame and a predetermined mark or cut-out image. It is possible to recognize whether or not camera shake is within an allowable range.

  According to a second aspect of the present invention, in the photographing apparatus according to the first aspect, the camera shake detection means includes an angular acceleration sensor or an acceleration sensor.

  The camera shake detection means can include an angular acceleration sensor or an acceleration sensor.

  The camera shake detection means can detect camera shake by an angular acceleration sensor such as a gyro sensor or an acceleration sensor, for example.

  According to a third aspect of the present invention, there is provided the photographing apparatus according to the first or second aspect, further comprising an allowable condition setting unit for setting the allowable condition for the camera shake, wherein the auxiliary frame display means for the camera shake recognition is provided. The size of the auxiliary frame for camera shake recognition is changed based on the setting of the allowable condition setting means.

  An allowable condition setting unit that sets an allowable condition for camera shake may be provided, and the auxiliary frame display unit for camera shake recognition changes the size of the auxiliary frame for camera shake recognition based on the setting.

  There are cases where the influence of camera shake on an image differs depending on conditions, such as whether or not the same camera shake amount results in a blurred image. The allowable condition setting means sets an allowable condition for camera shake, and the camera shake recognition auxiliary frame display means can change the size of the camera shake recognition auxiliary frame based on the setting. It is possible to more appropriately recognize whether or not camera shake is within an allowable range.

  According to a fourth aspect of the present invention, in the photographing apparatus of the third aspect, the permissible condition setting means sets angular acceleration or acceleration as the permissible condition for the hand movement.

  An acceptable condition for camera shake may be to set angular acceleration or acceleration. Since the angular acceleration or acceleration changes depending on the amount of camera shake, by setting the angular acceleration or acceleration, for example, the photographer can set the degree (amount) of the allowable camera shake amount.

  According to a fifth aspect of the present invention, in the photographing apparatus according to the third or fourth aspect, the allowable condition setting unit is configured such that the size of the auxiliary frame for camera shake recognition increases as the exposure time of the imaging unit increases. So that the size of the auxiliary frame for camera shake recognition increases as the exposure time decreases.

  The allowable condition setting means changes the size of the camera shake recognition auxiliary frame to become smaller as the exposure time of the imaging means becomes longer, and the size of the camera shake recognition auxiliary frame becomes larger as the exposure time becomes shorter. change.

  If the exposure time is long, even a small amount of camera shake has a large effect on the image.Therefore, as the exposure time becomes longer, the size of the auxiliary frame for camera shake recognition becomes smaller, and as the exposure time becomes shorter. By changing the size of the auxiliary frame for camera shake recognition to be larger, the auxiliary frame for camera shake recognition can show an appropriate allowable range, and the photographer can check whether the generated camera shake is within the allowable range. Can be recognized more appropriately.

  The imaging device according to claim 6 is the imaging device according to any one of claims 3 to 5, further comprising a camera shake correction unit that corrects a camera shake detected by the camera shake detection unit, and the permissible condition. When the setting unit is set to perform the camera shake correction by the camera shake correction unit, the size of the auxiliary frame for camera shake recognition is larger than the case where the setting is not to perform the camera shake correction. And

  A camera shake correcting means for correcting the detected camera shake is provided, and the allowable condition setting means is set so that the size of the auxiliary frame for camera shake recognition is not set when the camera shake correction is set. Increase compared to the case.

  When camera shake correction is performed, the generated camera shake is corrected, so even if a larger camera shake occurs than when it is not performed, it is difficult for the image to become a blurred image. By increasing the size of the auxiliary frame, the camera shake recognition auxiliary frame display means can display the camera shake recognition auxiliary frame of that size. Whether or not there is can be recognized more appropriately.

  The imaging apparatus according to claim 7 is the imaging apparatus according to any one of claims 1 to 6, wherein the camera shake amount display means is configured to use the predetermined mark based on an exposure time of the imaging means. Alternatively, the display position of the cut image is changed.

  The camera shake amount display means can change a position for displaying the predetermined mark or the cut-out image based on an exposure time of the image sensor.

  Since there is a correspondence relationship between the exposure time and the effect of camera shake on the image, based on the exposure time, for example, when the exposure time is long, by changing a predetermined mark or cut image to a position away from the specified position, Since the image can be displayed at an appropriate position based on the exposure time, the photographer can more appropriately recognize whether or not the generated camera shake is within the allowable range.

  The imaging apparatus according to claim 8 is the imaging apparatus according to any one of claims 1 to 7, wherein the camera shake amount display unit is configured to display the predetermined mark as the exposure time of the imaging unit increases. Alternatively, the size of the predetermined mark or the cut-out image is changed so that the size of the cut-out image becomes larger as the exposure time becomes shorter.

  The camera shake amount display means is changed so that the size of the predetermined mark or cutout image increases as the exposure time increases, and the size of the predetermined mark or cutout image decreases as the exposure time decreases. can do.

  There is a correspondence between the exposure time and the effect of camera shake on the image, and there is a proportional relationship between the exposure time and the size of the predetermined mark or cut-out image. The exposure time is changed so that the size of the predetermined mark or cutout image increases as the exposure time increases, and the size of the predetermined mark or cutout image decreases as the exposure time decreases. Therefore, the photographer can more appropriately recognize whether or not the generated camera shake is within the allowable range.

  The imaging device according to claim 9 is the imaging device according to any one of claims 1 to 8, wherein the predetermined mark or cut-out image is located outside the auxiliary frame for camera shake recognition. Further, there is provided an informing means for informing that the amount of camera shake exceeds an allowable amount.

  Informing means for informing when a predetermined mark or cut-out image is located outside the auxiliary frame for camera shake recognition can be provided. The case where the predetermined mark or cut-out image is located outside the auxiliary frame for camera shake recognition indicates the case where the camera shake exceeds the allowable range. That is, the notification means notifies that the camera shake exceeds an allowable range. Thereby, it is possible to make it easier for the photographer to recognize whether or not the camera shake is within an allowable range.

  According to a tenth aspect of the present invention, in the photographing apparatus according to the ninth aspect, the notifying unit is a color tone changing unit that changes a color tone of an image displayed on the display unit.

  The notification unit can be a color tone changing unit that changes the color tone of the image displayed on the display unit. Accordingly, since the user's vision is emphasized and notified, it can be more easily recognized that the camera shake exceeds the allowable range.

  According to an eleventh aspect of the present invention, in the photographing apparatus according to the ninth aspect or the tenth aspect, the notification unit is a warning sound output unit that outputs a warning sound.

  The notification means can be a warning sound output means for outputting a warning sound, and can be notified by a warning sound. Accordingly, it is possible to notify the user's hearing that the camera shake exceeds the allowable range.

  According to a twelfth aspect of the present invention, in the photographing apparatus according to any one of the ninth to eleventh aspects, the notification means is a vibration means that vibrates the photographing apparatus.

  The notification means can be a vibration means that vibrates the photographing apparatus, and can be notified by vibration. Accordingly, it is possible to notify that the camera shake exceeds an allowable range with respect to the sense of touch of the photographer.

  According to a control method for a photographing apparatus according to a thirteenth aspect of the present invention, an image based on image data of a captured subject image is displayed, a direction and an amount of camera shake occurring at the time of imaging is detected, and the displayed display image is displayed. The camera shake recognition auxiliary frame indicating the allowable range of camera shake is displayed, and a cutout image obtained by cutting out a predetermined mark or a part of the display image is displayed at a position corresponding to the direction and amount of the camera shake on the display image. It is characterized by doing.

  As described above, according to the present invention described in claims 1 to 13, the photographer can recognize the amount of camera shake that has occurred and recognize whether it is within an allowable range. The effect that the imaging device which can perform photography and the control method of an imaging device can be provided is acquired.

  [First Embodiment]

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

  An example of a schematic configuration of a digital camera which is a photographing apparatus according to the present embodiment is shown in FIG.

  In front of the digital camera 10 of the present embodiment, a lens 12 for forming a subject image and a finder 14 used for determining the composition of the subject to be photographed are provided. On the top surface of the digital camera 10, a release button (shutter) 16A that is pressed by a photographer when performing shooting and a power switch 16B are provided.

  In the present embodiment, the release button 16A has two stages: a state where the release button 16A is pressed to the intermediate position (half-pressed state) and a state where the release button 16A is pressed to the final pressed position beyond the intermediate position (full-pressed state). The pressing operation is configured to be detectable.

  In the digital camera 10 according to the present embodiment, the exposure state (shutter speed (exposure time), aperture state) is set by operating the AE (Automatic Exposure) function by pressing the release button 16A halfway. After that, an AF (Auto Focus) function is activated to control the focus, and then exposure (photographing) is performed when the button is fully pressed.

  On the other hand, on the back of the digital camera 10, a liquid crystal display (display means for displaying an eyepiece portion of the finder 14 and subject images, various menu screens, messages, etc. indicated by digital image data obtained by photographing) LCD) 18, and a shooting mode that is a mode for performing shooting, and a playback mode that is a mode for displaying (reproducing) a subject image indicated by digital image data obtained by shooting on the LCD 18. A mode changeover switch 16C that is slid and a cross-cursor button 16D that includes four arrow keys indicating up, down, left, and right directions of movement in the display area of the LCD 18 are provided. Yes.

  In this embodiment, an image picked up by an image pickup device (CCD, details will be described later) is displayed on the LCD 18 as a through image, and can be used as an electronic viewfinder.

  Next, FIG. 2 shows a block diagram of an example of the main configuration of the electrical system of the digital camera 10 of the present embodiment.

  As shown in FIG. 2, the digital camera 10 of the present embodiment includes an imaging unit 20, a camera shake detection unit 22, an image signal processing circuit unit 24, a compression / decompression processing circuit unit 26, a camera shake permission condition setting unit 28, and a camera shake recognition display. Unit 30, display control circuit unit 32, LCD 18, operation unit 16, CPU (central processing unit) 34, AF detection circuit unit 36, AE / AWB detection circuit unit 38, camera shake correction unit 40, first memory 42, second memory 44, a media controller 46, and an external device I / F (interface) 48.

  The imaging unit 20 includes an optical unit 52, a CCD (Charge Coupled Device) 54, a CDSAMP (Correlated Double Sampling Circuit) 56, an A / D (Analog / Digital Converter) 58, an image input controller 60, and a timing generator 62. , And motor control units 64A, 64B, 64C. The optical unit 52 includes the lens 12 (see FIG. 1), a zoom motor 52A, a focus adjustment motor 52B, and an aperture drive motor 52C.

  The camera shake detection unit 22 includes sensors 70A and 70B, a high-pass filter 72, an A / D (analog / digital converter) 74, and a signal processing circuit unit 76.

  Image signal processing circuit unit 24, compression / decompression processing circuit unit 26, camera shake allowable condition setting unit 28, camera shake recognition display unit 30, display control circuit unit 32, CPU 34, AF detection circuit unit 36, AE / AWB detection circuit unit 38, camera shake The correction unit 40, the first memory 42, the second memory 44, the media controller 46, the external device I / F 48, the image input controller 60, and the signal processing circuit unit 76 are connected to each other via the BUS 50 so as to exchange information and the like. Has been.

  The CPU 34 controls the overall operation of the digital camera 10, the first memory 42 is used as a work area when the CPU 32 executes various processes, and the second memory 44 This is mainly for storing digital image data obtained by photographing. A specific example of the first memory 42 is SDRAM (Synchronous Dynamic Random Access Memory), and a specific example of the second memory 44 is VRAM (Video RAM).

  The image signal processing circuit unit 24 is for performing various image processing on the digital image data. The compression / decompression processing circuit unit 26 performs compression processing on the digital image data in a predetermined compression format, while performing expansion processing on the compressed digital image data.

  The display control circuit unit 32 generates a signal for causing the LCD 18 to display an image, a through image, a menu screen or the like indicated by the digital image data and supplies the signal to the LCD 18.

  The AF detection circuit unit 36 is for detecting a physical quantity required to operate the AF function, and the AE / AWB detection circuit unit 38 is for operating the AE function and the AWB (Automatic White Balance) function. The required physical quantity, as a specific example, is for detecting luminance information indicating the brightness of an image obtained by imaging by the CCD 54 and color difference information. The CPU 34 executes AE control for setting the exposure state based on the detection result by the AE / AWB detection circuit unit 38. Note that the exposure state is determined by the interrelation between the aperture, shutter speed, shooting sensitivity, and the like.

  The media controller 46 is for enabling the digital camera 10 to access a recording medium 46A that can be attached to and detached from the main body. The external device I / F 48 is for managing communication with an external device connected to the digital camera 10 according to a predetermined interface plan (for example, USB (Universal Serial Bus) standard).

  The camera shake allowable condition setting unit 28 is for setting an allowable condition due to camera shake,

Based on the setting, the size of the auxiliary frame for camera shake recognition is controlled. In the present embodiment, as an example of the allowable condition, the acceleration or angular acceleration of the sensors 70A and 70B, the exposure time (shutter speed), and whether to perform camera shake correction are described in detail. Not limited (details will be described later).

  The camera shake recognition display unit 30 includes a camera shake recognition auxiliary frame display unit 30 </ b> A and a camera shake amount display unit 30 </ b> B, and allows the user to recognize camera shake occurring during shooting on the through image displayed on the LDC 18. It is for display. The camera shake recognition auxiliary frame display unit 30 </ b> A is for displaying a camera shake tolerance range, and displays a camera shake recognition auxiliary frame indicating the camera shake tolerance range based on the control of the camera shake tolerance condition setting unit 28. The camera shake tolerance range is, for example, the amount of camera shake that allows the user to determine that there is no problem with the naked eye in the printed subject image, or that there is no problem even if camera shake occurs. It represents a range.

  The camera shake amount display unit 30B is for displaying the amount of camera shake actually occurring, and uses a predetermined mark from the initial position (in this embodiment, a circular mark is used as a camera shake amount display mark as a specific example. The amount of camera shake is displayed according to the movement amount. In this embodiment, the initial position is the center on the LCD 18 screen.

  The camera shake correction unit 40 is for correcting camera shake detected by the camera shake detection unit 22. As a specific example of a method for correcting camera shake, an analog signal indicating a subject image in which camera shake is corrected by moving a camera shake correction lens (not shown) included in the lens 12 to cancel the optical axis shift due to camera shake. Although the method etc. which make it output from CCD54 are mentioned, it is not restricted to this. Further, in the present embodiment, whether or not to perform camera shake correction can be selected by the user operating an item such as a menu screen displayed on the LCD 18 by operating the cross cursor button 16D or the like.

  The lens 12 (see FIG. 1) included in the optical unit 52 includes a plurality of lenses, and is configured as a zoom lens that can change (magnify) the focal length. The zoom motor 52A and the focus adjustment motor 52B. And a lens driving mechanism including an aperture driving motor 52C. Output terminals of the motor drive units 64A, 64B, and 64C are connected to the zoom motor 52A, the focus adjustment motor 52B, and the aperture drive motor 52C. The input terminals of the motor drive units 64A, 64B, and 64C are connected to the CPU 34, respectively, and the zoom motor 52A, the focus adjustment motor 52B, and the aperture drive motor 52C constituting the lens drive mechanism are each motor-driven under the control of the CPU 34. Driven by the drive signal supplied from the unit 64.

  When changing the optical zoom magnification, the CPU 34 drives and controls the zoom motor 52A to change the focal length of the lens 12 included in the optical unit 52. The CPU 34 performs focus control by driving and controlling the focus adjustment motor 52B so that the contrast of an image obtained by imaging by the CCD 54 is maximized. That is, in the present embodiment, as the focus control, the AF detection circuit unit 36 detects an evaluation value indicating the high-frequency component of the luminance of the image obtained by imaging by the CCD 54, and based on the detected evaluation value, It is possible to execute contrast AF control by a so-called TTL (Through The Lens) method for setting the lens position so that the contrast of the read image is maximized.

  The CCD 54 is disposed behind the optical axis of the lens 12, and the output terminal is connected to the input terminal of the CDSAMP 56.

  The output terminal of the CDSAMP 56 is connected to the input terminal of the A / D 58. The correlated double sampling processing by the CDSAMP 56 is intended to reduce noise (particularly thermal noise) included in the output signal of the CCD 54, and the feedthrough component level and pixel signal component included in the output signal for each pixel of the CCD 54. This is a process for obtaining accurate pixel data by taking the difference from the level. The CDSAMP 56 includes an amplifier (not shown), and the image signal input from the CCD 54 is subjected to correlated double sampling processing and is amplified and output with a predetermined amplification factor.

  The input terminal of the image input controller 60 is connected to the output terminal of the A / D 58, and has a built-in line buffer of a predetermined capacity and controls to directly store the input digital image data in a predetermined area of the second memory 44. Is for doing.

  The timing generator 62 mainly generates a timing signal for driving the CCD 54 and supplies the timing signal to the CCD 54. The timing generator 62 has an input terminal connected to the CPU 34 and an output terminal connected to the CCD 54, and the drive of the CCD 54 is controlled by the CPU 34 via the timing generator 62.

  Further, the operation unit 16 including the release button 16A, the power switch 16B, the mode change switch 16C, and the cross cursor button 16D is connected to the CPU 34, and the CPU 34 can always grasp the operation state of each of these operation units 16.

  The sensors 70A and 70B are for detecting the shake of the imaging unit 20 (the optical unit 52 and the CCD 54) with respect to the subject after the digital camera 10 is turned on. By detecting angular acceleration, acceleration, angular displacement, and the like. Detect shake. A specific example of the sensors 70A and 70B includes a gyro sensor. In the present embodiment, the sensor 70A detects the angular velocity of the rotational movement of the digital camera 10 in a predetermined direction (vertical direction) orthogonal to the optical axis of the imaging unit 20 including the lens 12 and the CCD 54. A signal according to the angular velocity of the direction is output. The sensor 70B detects the angular velocity of the rotational movement of the digital camera 10 in a direction (horizontal direction) orthogonal to the optical axis of the imaging unit 20 and rotated approximately 90 degrees from the detection direction of the sensor 70A. A signal corresponding to the angular velocity in the horizontal direction is output.

  Specifically, the sensors 70 </ b> A and 70 </ b> B detect that the subject has moved out of the cutout area, which is the initial setting of the digital camera 10. The shake amount is detected by the sensors 70A and 70B as movement amounts in the vertical direction and the horizontal direction, respectively, and is output as an output signal from these sensors.

  Since the output signals from the sensors 70A and 70B are small signals, the output signals are amplified via an amplifier circuit (not shown). The output signals from the sensors 70A and 70B include a direct current component that is an offset component such as a null voltage or a direct current component.

  The high-pass filter 72 is for removing a DC component from the sensors 70A and 70B. A specific example of the high-pass filter 72 is a CR DC cut circuit composed of a capacitance and a resistance. By passing through the high-pass filter 72, the output signals of the sensors 70A and 70B are amplified and the low frequency component, that is, the direct current component is cut. The output signals of the sensors 70A and 70B from which the DC component has been cut are sampled by the A / D 74 and input to the signal processing circuit unit 76 as output data.

  The signal processing circuit unit 76 is for obtaining the shake amount of the vertical component and the horizontal component, or a correction amount for correcting the shake. As a specific example, the cutout area is moved in such a direction as to suppress the movement in accordance with the amount of movement from the original position (initial setting position) of the cutout area when the digital camera 10 captures the subject. The horizontal movement amount and the vertical movement amount are calculated, and after moving the cutout area according to the calculated movement quantity, image data in the cutout area is obtained. The initial position is, for example, a position when the cutout area is positioned so that the center position of the effective pixel area and the center position of the cutout area are substantially the same.

  In the present embodiment, the camera shake detection unit 22 detects the camera shake using the sensors 70A and 70B. However, the present invention is not limited to this. For example, the camera shake detection unit 22 may perform the detection without using the sensor. As a specific example in this case, an image of the Kth frame is captured, and the digital camera is based on the image of the (K-1) th frame, the positional shift of the same subject, and the focal position (focal length) of the lens. Ten camera shake directions and camera shake amounts may be calculated.

  Next, the operation of the digital camera 10 of the present embodiment will be described in detail with reference to the drawings.

  First, the overall operation at the time of shooting in the digital camera 10 of the present embodiment will be described.

  Imaging by the CCD 54 via the optical unit 52 is performed, and signals indicating the subject image are sequentially output from the CCD 54. The signals output from the CCD 54 are sequentially input to the CDSAMP 56 and subjected to correlated double sampling processing, and then input to the A / D 58. The A / D 58 receives R (red), G ( Green) and B (blue) signals are converted into 12-bit R, G, and B signals (digital image data), respectively, and output to the image input controller 60.

  The image input controller 60 accumulates digital image data sequentially input from the A / D 58 in a built-in line buffer and temporarily stores it in a predetermined area of the second memory 44.

  The digital image data stored in the predetermined area of the second memory 44 is read out by the image signal processing circuit unit 24 under the control of the CPU 34, and the digital gain corresponding to the physical quantity detected by the AE / AWB detection circuit unit 38 is read out from the digital image data. The white balance is adjusted by applying gamma processing and sharpness processing to generate 8-bit digital image data, and further YC signal processing is performed to obtain a luminance signal Y and chroma signals Cr and Cb (YC signal). The YC signal is generated and stored in an area different from the predetermined area of the second memory 44.

  The LCD 18 is configured to display a through image and can be used as an electronic finder. When the LCD 18 is used as a finder as described above, the generated YC signal is used as the display control circuit unit 32. Are sequentially output to the LCD 18. As a result, a through image is displayed on the LCD 18.

  In addition, the camera shake recognition display unit 30 performs camera shake recognition display for enabling the user to recognize the camera shake and the camera shake allowable amount on the through image. The camera shake recognition auxiliary frame display unit 30A displays the camera shake recognition auxiliary frame based on the control of the camera shake permission condition setting unit 28, and the camera shake amount display unit 30B displays a camera shake amount display mark.

  Here, when the release button 16A is half-pressed by the user, after the AE function is activated and the exposure state is set, the AF function is activated and the focus control is performed, and then the full-press state is continued. At this time, the YC signal stored in the second memory 44 is compressed in a predetermined compression format by the compression / decompression processing circuit unit 26 and then recorded as an image file on the recording medium 46A.

  Next, the above-described camera shake recognition display will be described in detail with reference to FIGS. FIG. 3 is a flowchart illustrating an example of camera shake recognition display processing according to the present embodiment. At this time, a through image of the subject image is displayed on the LCD 18 as described above.

  First, in step 100, the size of the auxiliary frame for camera shake recognition is acquired from the camera shake permission condition setting unit 28. In the present embodiment, the size (allowable range) of the camera shake recognition auxiliary frame based on the standard photographing conditions is obtained in advance, and the obtained value is used as the default of the allowable condition. Is stored in a memory (not shown).

  In the next step 102, the camera shake recognition auxiliary frame display unit 30A displays the camera shake recognition auxiliary frame on the through image of the LCD 18 based on the acquired size of the auxiliary frame.

  In the next step 104, a camera shake amount display mark is displayed at a predetermined position (initial position, center in the present embodiment) on the through image of the LCD 18.

  In the next step 106, the acceleration direction and the acceleration amount (acceleration) are acquired from the camera shake detection unit 22 as the camera shake amount. In the next step 108, the camera shake amount display mark is moved (displayed) to a position based on the acquired camera shake amount. Change the position to be performed).

  Here, the display of the auxiliary frame for camera shake recognition and the camera shake amount display mark according to the present embodiment will be described in detail with reference to FIGS. FIG. 4A shows a view (front view) of the digital camera 10 viewed from the subject side when no camera shake occurs. FIG. 4B shows a state in which the digital camera 10 is deviated from a normal position (a position illustrated by a pointed end) due to camera shake, that is, a state in which camera shake Z occurs. In the state shown in FIG. 4B, the photographer shakes his hand in the left direction and the upward direction. In this case, the sensor 70A detects the vertical component Y of the camera shake Z, and the sensor 70B detects the horizontal component X.

  FIG. 5 shows a state in which a camera shake recognition auxiliary frame 80 and a camera shake amount display mark 82 are displayed on the through image 84 displayed on the LCD 18. FIG. 5A shows a case where camera shake does not occur, and corresponds to FIG. FIG. 5B shows a case where camera shake occurs, and corresponds to FIG. As shown in FIG. 5B, the camera shake amount display mark is separated from the initial position by a distance corresponding to the camera shake amount in the left direction (corresponding to the horizontal component X) and the upward direction (corresponding to the vertical component Y). It is displayed at the position.

  In the present embodiment, the camera shake recognition auxiliary frame 80 has a camera shake tolerance range, and the camera shake tolerance range, that is, no camera shake image is generated when the camera shake amount display mark 82 is entirely included in the tolerance range. It is tightening.

  In this way, when the camera shake recognition auxiliary frame 80 and the camera shake amount display mark 82 are displayed as shown in FIG. 5B, the user (photographer) is shaking leftward and upward. Can be recognized as being within the allowable range.

  Further, FIG. 5C shows a state in which the camera shake amount display mark 82 is outside the camera shake recognition auxiliary frame 80, that is, a camera shake exceeding the allowable range has occurred. As described above, when the camera shake recognition auxiliary frame 80 and the camera shake amount display mark 82 are displayed as shown in FIG. 5C, the user (photographer) has exceeded the allowable range in the left direction and the upward direction. It is possible to recognize that the camera shake has occurred, and accordingly, it can be recognized that the image becomes a blurred image.

  Here, the shapes of the camera shake recognition auxiliary frame 80 and the camera shake amount display mark 82 are circular, but are not limited thereto, and may be other shapes such as a square, and the display color is not particularly limited. However, it is preferable that it is conspicuous.

  Further, in the next step 110, it is determined whether or not to end the camera shake recognition display. If not, the determination is negative, and the process returns to step 106 to repeat the acquisition of the camera shake amount and the movement of the camera shake amount display mark. On the other hand, when the photographing is finished, when the through image display is finished, or when the user designates the end of the camera shake recognition display, the determination is affirmed and this processing is finished.

  As described above, in the digital camera 10 of the present embodiment, the camera shake recognition auxiliary frame 80 is displayed on the through image 84 displayed on the LCD 18 and the amount and direction of camera shake when the subject is photographed. Since the camera shake amount display mark 82 is displayed at a position corresponding to, the photographer can recognize the amount of camera shake that has occurred, and whether or not the camera shake amount display mark 82 exceeds the camera shake recognition auxiliary frame 80. Thus, it can be recognized that the camera shake is within the allowable range when it does not exceed, and is outside the allowable range when it exceeds.

  In the present embodiment, the amount and direction of camera shake are displayed by the camera shake amount display mark 82. However, the present invention is not limited to this, and is displayed as a cutout image obtained by cutting out a part of the through image displayed on the LCD 18. It may be.

  The camera shake recognition display process in this case is a process that differs from the camera shake recognition display process shown in FIG.

  In step 104, a cut-out image obtained by cutting out a part of the through image displayed on the LCD 18 is displayed (see FIG. 6A, details will be described later). The size of the cut-out image is stored in advance in a memory (not shown) of the camera shake amount display unit 30B. Moreover, it is preferable that the position to cut out is the center of the LCD 18 screen. It should be noted that the portion of the remaining through image that has been cut out may be displayed as it is, or may not be displayed, or the color tone may be changed, but it is preferable to make the cut out image portion easy to see.

  Further, in step 108, a through image at a position based on the acquired camera shake amount and direction is cut out (see FIG. 6B, details will be described later). In the present embodiment, the through image is cut out so that the center position of the cut out image becomes a position based on the acquired camera shake amount and direction.

  A specific example of the camera shake recognition display is shown in FIG. FIG. 6A shows a case where camera shake does not occur, and corresponds to FIG. FIG. 6B shows a case where camera shake occurs, and corresponds to FIG. As shown in FIG. 6B, the cutout image 83 is separated from the initial position by a distance corresponding to the amount of camera shake in the left direction (corresponding to the horizontal component X) and the upward direction (corresponding to the vertical component Y). It is displayed at the position. As described above, when the camera shake recognition auxiliary frame 81 and the cutout image 83 are displayed as shown in FIG. 6B, the user (photographer) has caused camera shake in the left direction and the upward direction. It can be recognized that it is within the allowable range.

  Further, FIG. 6C shows a state in which the cut-out image 83 is out of the camera shake recognition auxiliary frame 81, that is, a camera shake exceeding an allowable range is generated. As described above, when the camera shake recognition auxiliary frame 81 and the cutout image 83 are displayed as shown in FIG. 6C, the user (photographer) moves the camera shake exceeding the allowable range leftward and upward. It is possible to recognize that the image is awake, and thus to recognize that the image is blurred.

  As described above, the photographer can generate the camera shake by displaying the camera shake recognition auxiliary frame 81 on the through image 84 displayed on the LCD 18 and displaying the camera shake amount by the cut image 83 obtained by cutting the through image. The amount of camera shake can be recognized, and depending on whether or not the cutout image 83 exceeds the camera shake recognition auxiliary frame 81, the camera shake is within the allowable range. You can recognize that you are outside.

  [Second Embodiment]

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present embodiment, a case where a photographer sets an allowable condition for camera shake as a shooting condition will be described in detail. The digital camera according to the present embodiment has substantially the same configuration and operation as the digital camera 10 according to the first embodiment, and thus detailed description thereof is omitted, and details regarding camera shake recognition display processing (camera shake recognition display) are omitted. Explained.

  In the present embodiment, the photographer sets in advance an allowable condition for camera shake, for example, by operating an item such as a menu screen displayed on the LCD 18 by operating the cross cursor button 16D or the like. Here, the angular velocity of the sensor 70A and the sensor 70B of the camera shake detection unit 22 is set as a specific example of how much (shake amount) of camera shake is allowed. Each set angular velocity is stored in a memory (not shown) of the camera shake allowable condition setting unit 28.

  FIG. 7 shows a flowchart of an example of the camera shake recognition display process of the present embodiment. Note that step 206 corresponds to step 100 (see FIG. 3) of the camera shake recognition display process of the first embodiment, step 208 to step 102, step 210 to step 104, step 212 to step 106, step 106. 214 corresponds to step 108, and step 216 corresponds to step 110, respectively.

  First, in step 200, the set acceleration is acquired from the camera shake permission condition setting unit 28, and in the next step 202, the camera shake recognition auxiliary frame size is calculated. In the present embodiment, the acceleration of the sensors 70A and 70B and the size of the camera shake recognition auxiliary frame 80 are proportional to each other. As an example, the size of the camera shake recognition auxiliary frame 80 is calculated based on the acceleration. The calculation formula for this is stored in advance in the memory (not shown) of the camera shake permission condition setting unit 28. However, the present invention is not limited to this, and for example, the correspondence relationship between the acceleration and the size of the auxiliary frame 80 for camera shake recognition is stored in advance. Alternatively, the size of the camera shake recognition auxiliary frame 80 may be read from the correspondence.

  Since the acceleration increases in proportion to the increase in the amount of camera shake, the allowable amount of camera shake is large when the set acceleration is large, and the allowable amount of camera shake is small when the acceleration is small. Therefore, the size of the camera shake recognition auxiliary frame 80 is large when the set acceleration is large, and is small when the acceleration is small (see FIG. 8, details will be described later).

  In the next step 204, the size (allowable range) of the camera shake assisting frame is set to the calculated value.

  In the next step 206, the size of the camera shake recognition auxiliary frame is acquired. In the next step 208, the camera shake recognition auxiliary frame 80 is displayed on the through image 84 of the LCD 18, and in the next step 210, the camera shake amount display mark is displayed. 82 is displayed. In the next step 212, the camera shake amount (acceleration direction and acceleration amount) is acquired from the camera shake detection unit 22, and in the next step 214, the camera shake amount display mark 82 is moved to a position based on the acquired camera shake amount. To do. In the next step 216, it is determined whether or not to end the present process. If the determination is negative, the acquisition of the amount of camera shake and the movement of the camera shake amount display mark 82 are repeated. If the determination is affirmative, the process ends.

  The display of the camera shake recognition auxiliary frame 80 and the camera shake amount display mark 82 according to the present embodiment will be described with reference to FIG. FIG. 8A shows a case where the set acceleration is small, FIG. 8B shows a case where the set acceleration is larger than the case of FIG. 8A, and the camera shake recognition auxiliary frame 80B It is larger than the recognition auxiliary frame 80A.

  Thus, even with the same amount of camera shake, in the case shown in FIG. 8A, the camera shake is outside the allowable range, and in the case shown in FIG. 8B, the camera shake may be within the allowable range. Can be recognized.

  As described above, in the digital camera 10 of the present embodiment, the angular velocities of the sensor 70A and the sensor 70B of the camera shake detection unit 22 are set with respect to how much the camera shake is allowed (shake amount). Since the size of the auxiliary frame 80 for camera shake recognition is calculated in advance and displayed on the through image 84 of the LCD 18 based on the setting, the photographer recognizes the amount of camera shake that has occurred based on the setting. Depending on whether or not the camera shake amount display mark 82 exceeds the camera shake recognition auxiliary frame 80, the camera shake is within the allowable range. Can be recognized.

  In the present embodiment, the amount and direction of camera shake are displayed by the camera shake amount display mark 82. However, the present invention is not limited to this, and as in the case of the first embodiment, a through image displayed on the LCD 18 is displayed. You may make it display by the cut-out image which cut out a part of. Similarly, in the camera shake recognition display process, only the process of step 210 corresponding to step 104 of FIG. 3 and the process of step 214 corresponding to step 108 may be performed.

  [Third Embodiment]

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present embodiment, the case where the exposure time is set as an acceptable condition for camera shake will be described in detail. The digital camera according to the present embodiment has substantially the same configuration and operation as the digital camera according to the first and second embodiments, and thus detailed description thereof is omitted, and camera shake recognition display processing ( The camera shake recognition display will be described in detail.

  In the present embodiment, the photographer sets in advance an allowable condition for camera shake, for example, by operating an item such as a menu screen displayed on the LCD 18 by operating the cross cursor button 16D or the like. The acquisition of the exposure time in the present embodiment may be performed by, for example, reading a set shutter speed or reading from the exposure time of the through image 84, but is not limited thereto.

  FIG. 9 shows a flowchart of an example of the camera shake recognition display process of the present embodiment. Note that step 306 corresponds to step 100 (see FIG. 3) of the camera shake recognition display process of the first embodiment, step 308 is step 102, step 310 is step 104, step 312 is step 106, step 106. 314 corresponds to step 108, and step 316 corresponds to step 110, respectively. Step 300 corresponds to step 200 (see FIG. 7) of the camera shake recognition process of the second embodiment, step 302 corresponds to step 202, and step 304 corresponds to step 204.

  First, at step 300, an exposure time (scheduled exposure time, here, shutter speed) scheduled to be exposed to the CCD 54 is acquired, and at the next step 302, an auxiliary frame size for camera shake recognition is selected. In the present embodiment, the correspondence relationship between the exposure time and the size of the auxiliary frame for camera shake recognition is stored in advance in a memory (not shown) of the camera shake permission condition setting unit 28, and camera shake recognition is performed based on the correspondence relationship. However, the present invention is not limited to this. For example, a calculation formula for calculating the size of the auxiliary frame for camera shake recognition from the exposure time is stored in advance and is calculated using the calculation formula. May be.

  Note that as the exposure time becomes longer, it is more susceptible to camera shake. Therefore, in the present embodiment, the size of the camera shake recognition auxiliary frame 80 is small when the exposure time is long, and is large when the exposure time is short.

  In the next step 304, the camera shake allowable range (size of the auxiliary frame) is set to the selected value, and then the process proceeds to the next step.

  In step 306, the size of the auxiliary frame for camera shake recognition is acquired, and in the next step 308, the auxiliary frame for camera shake recognition 80 is displayed on the through image 84 of the LCD 18, and in the next step 310, a camera shake amount display mark is displayed. 82, the camera shake amount (acceleration direction and acceleration amount) is acquired from the camera shake detection unit 22 in the next step 312, and in the next step 314, the camera shake amount display mark 82 is displayed at a position based on the acquired camera shake amount. In the next step 316, it is determined whether or not to end the present process. If the result is negative, the acquisition of the camera shake amount and the movement of the camera shake amount display mark 82 are repeated. If the result is affirmative, the process is performed. finish.

  The display of the camera shake recognition auxiliary frame 80 and the camera shake amount display mark 82 according to the present embodiment will be described with reference to FIG. 8A shows a case where the exposure time is long, FIG. 8B shows a case where the exposure time is shorter than the case of (A), and the camera shake recognition auxiliary frame 80B is more than the camera shake recognition auxiliary frame 80A. Is also big.

  Thus, even with the same amount of camera shake, in the case shown in FIG. 8A, the camera shake is outside the allowable range, and in the case shown in FIG. 8B, the camera shake may be within the allowable range. Can be recognized.

  As described above, in the digital camera 10 of the present embodiment, the size of the camera shake recognition auxiliary frame 80 is selected based on the exposure time and displayed on the through image 84 of the LCD 18, so that it is automatically set. Based on the permissible conditions of camera shake, it is possible to display an appropriate camera shake recognition auxiliary frame 80. Accordingly, the photographer can recognize the amount of camera shake that has occurred, and can more appropriately recognize whether or not the camera shake is within an allowable range.

  As in the case of the first embodiment, a part of the through image displayed on the LCD 18 may be displayed as a cut-out image, and the camera shake recognition display process is performed in the same manner as the step of FIG. Only the processing of Step 310 corresponding to 104 and Step 314 corresponding to Step 108 may be different.

  [Fourth Embodiment]

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present embodiment, a detailed description will be given of a case where the camera shake allowance condition is set based on whether or not the camera shake correction unit 40 performs camera shake correction. The digital camera according to the present embodiment has substantially the same configuration and operation as those of the digital camera according to the first to third embodiments. Therefore, detailed description thereof is omitted, and camera shake recognition display processing ( The camera shake recognition display will be described in detail.

  In the present embodiment, whether or not the photographer performs camera shake correction and the degree of correction (the number of steps) are set in advance.

  FIG. 10 shows a flowchart of an example of the camera shake recognition display process of the present embodiment. Note that step 410 corresponds to step 100 (see FIG. 3) of the camera shake recognition display processing of the first embodiment, step 412 to step 102, step 414 to step 104, step 416 to step 106, Step 418 corresponds to step 108, and step 420 corresponds to step 110. Step 400 corresponds to step 300 (see FIG. 9) of the camera shake recognition process of the third embodiment, step 402 corresponds to step 302, and step 408 corresponds to step 304.

  First, in step 400, the planned exposure time is acquired, and in the next step 402, the size of the auxiliary frame for camera shake recognition is selected.

  In the next step 404, the camera shake correction degree set from the camera shake correction unit 40 is acquired. In the present embodiment, the degree of camera shake correction is represented by “number of steps”. When camera shake correction is not performed (not set), the number of stages is “0”. Also, the greater the degree of camera shake correction, the greater the number of steps.

  In the next step 406, the size of the camera shake recognition auxiliary frame 80 is changed according to the acquired camera shake correction allowable number of steps. As the degree of camera shake correction increases, the effect of camera shake decreases. Therefore, the size of the auxiliary frame 80 for camera shake recognition is proportional to the degree of camera shake correction. In this embodiment, the size of the auxiliary frame 80 for camera shake recognition is large when the number of steps for camera shake correction is large, Is small (or “0”). As a specific example, in the present embodiment, when the size of the camera shake recognition auxiliary frame 80 selected in step 402 is “Z × Z” and the number of stages of camera shake correction is two, camera shake recognition is performed. The size of the auxiliary frame 80 is changed to “2Z × 2Z”. That is, 2 (stage) × 2 (stage) = 4 (times).

  In the next step 408, the size (allowable range) of the camera shake assisting frame is set to the selected value, and in the next step 410, the size of the camera shake recognition assisting frame is acquired, and in the next step 412, the camera shake assisting frame is obtained. The recognition auxiliary frame 80 is displayed on the through image 84 of the LCD 18, and the camera shake amount display mark 82 is displayed in the next step 414, and the camera shake amount (acceleration direction and acceleration amount) is detected from the camera shake detection unit 22 in the next step 416. In the next step 418, the camera shake amount display mark 82 is moved to a position based on the acquired camera shake amount, and in the next step 420, it is determined whether or not the present process is to be ended. Repeats the acquisition of the camera shake amount and the movement of the camera shake amount display mark 82, and if the result is affirmative, the process is terminated.

  The display of the camera shake recognition auxiliary frame 80 and the camera shake amount display mark 82 according to the present embodiment will be described with reference to FIG. FIG. 8A shows a case where the number of stages of camera shake correction is small (or “0”), and FIG. 8B shows a case where the number of stages of camera shake correction is larger than the case of (A). 80B is larger than the camera shake recognition auxiliary frame 80A.

  Thus, even with the same amount of camera shake, in the case shown in FIG. 8A, the camera shake is outside the allowable range, and in the case shown in FIG. 8B, the camera shake may be within the allowable range. Can be recognized.

  As described above, in the digital camera 10 of the present embodiment, the size of the camera shake recognition auxiliary frame 80 is selected based on the set number of stages of the camera shake correction function, and is displayed on the through image 84 of the LCD 18. Therefore, it is possible to display the appropriate camera shake recognition auxiliary frame 80 based on the automatically set camera shake allowable condition. Accordingly, the photographer can recognize the amount of camera shake that has occurred, and can more appropriately recognize whether or not the camera shake is within an allowable range.

  As in the case of the first embodiment, a part of the through image displayed on the LCD 18 may be displayed as a cut-out image, and the camera shake recognition display process is performed in the same manner as the step of FIG. Only the processing of Step 414 corresponding to 104 and Step 418 corresponding to Step 108 may be performed differently.

  [Fifth Embodiment]

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present embodiment, a case where the position of the camera shake amount display mark to be displayed is changed depending on the exposure time will be described in detail. The digital camera according to the present embodiment has substantially the same configuration and operation as the digital camera according to the first to fourth embodiments, and thus detailed description thereof is omitted, and camera shake recognition display processing ( The camera shake recognition display will be described in detail.

  In the present embodiment, the photographer sets in advance an allowable condition for camera shake, for example, by operating an item such as a menu screen displayed on the LCD 18 by operating the cross cursor button 16D or the like. The acquisition of the exposure time in the present embodiment may be performed by, for example, reading a set shutter speed or reading from the exposure time of the through image 84, but is not limited thereto.

  FIG. 11 shows a flowchart of an example of the camera shake recognition display process of the present embodiment. Note that step 500 corresponds to step 100 (see FIG. 3) of the camera shake recognition display processing of the first embodiment, step 502 is step 102, step 504 is step 104, step 510 is step 106, step 106. Step 514 corresponds to step 108, and step 516 corresponds to step 110. Step 506 corresponds to step 300 (see FIG. 9) of the camera shake recognition process of the third embodiment.

  First, in step 500, the size of the auxiliary frame for camera shake recognition is acquired from the camera shake permission condition setting unit 28. In the next step 502, the auxiliary frame for camera shake recognition 80 is displayed on the through image 84 of the LCD 18, and the next step At 504, the camera shake amount display mark 82 is displayed, and at the next step 506, the planned exposure time is acquired.

  In the next step 508, a movement coefficient of the camera shake amount display mark 82 corresponding to the acquired exposure time is selected. In the present embodiment, the correspondence relationship between the exposure time and the movement coefficient of the camera shake amount display mark 82 is stored in advance in a memory (not shown) of the camera shake amount display unit 30B, and the camera shake is based on the correspondence relationship. Although the movement coefficient of the quantity display mark 82 is selected, the present invention is not limited to this.

  Note that as the exposure time becomes longer, it is more susceptible to camera shake. Therefore, in the present embodiment, the movement amount of the camera shake amount display mark 82 is large when the exposure time is long, and is small when the exposure time is short. As a specific example, in the present embodiment, when the exposure time is doubled, the movement coefficient of the hand movement amount display mark 82 is 2 (the movement amount is twice).

  In the next step 510, the camera shake amount (acceleration direction and acceleration amount) is acquired from the camera shake detection unit 22, and in the next step 512, the movement amount is calculated.

In the present embodiment, a value obtained by multiplying the movement amount (specified movement amount) based on the acquired camera shake amount by the movement coefficient is calculated as the movement amount. As a specific example, when the specified movement amount is 1000 pix per 0.01 m / s ² and the movement coefficient is 1/2, the movement amount is 500 pix per 0.01 m / s ² .

  In the next step 514, the camera shake amount display mark 82 is moved to a position based on the calculated movement amount. In the next step 516, it is determined whether or not to end the process. When the acquisition of the amount, the calculation of the movement amount, and the movement of the camera shake amount display mark 82 are repeated and the result is affirmative, this processing is terminated.

  With reference to FIG. 12, the display of the camera shake recognition auxiliary frame 80 and the camera shake amount display mark 82 according to the present embodiment will be described. 12A shows a case where the exposure time is short, and FIG. 12B shows a case where the exposure time is longer than that in the case of (A). The initial position of the camera shake amount display mark 82 (in the present embodiment, With respect to the distance from the center of the camera shake recognition auxiliary frame 80, the distance ZB shown in FIG. 12B is longer than the distance ZA shown in FIG.

  Thus, even with the same amount of camera shake, the camera shake is within the allowable range in the case shown in FIG. 8A, and the camera shake is outside the allowable range in the case shown in FIG. 8B. Can be recognized.

  In the present embodiment, the movement amount of the camera shake amount display mark 82 is calculated using the movement coefficient. However, the present invention is not limited to this. For example, the movement amount of the camera shake amount display mark 82 is calculated from the exposure time. The calculation formula may be stored in advance and calculated by the calculation formula.

  As described above, in the digital camera 10 of the present embodiment, the movement coefficient of the camera shake amount display mark 82 is acquired based on the exposure time, the movement amount is calculated from the movement coefficient and the specified movement amount, and the through of the LCD 18 is calculated. Since the camera shake amount display mark 82 displayed on the image 84 moves to a position based on the calculated movement amount, the camera shake amount display mark 82 can be automatically displayed at an appropriate position based on the exposure time. . Therefore, the photographer can recognize the amount of camera shake that has occurred, and can more appropriately recognize the allowable range of camera shake.

  As in the case of the first embodiment, a part of the through image displayed on the LCD 18 may be displayed as a cutout image, and the camera shake recognition display process is performed in step 104 of FIG. The processing of step 514 corresponding to step 504 and step 108 corresponding to the above is similarly changed, and further, in step 512, the amount of movement of the cutout position for cutting out the through image may be calculated.

  [Sixth Embodiment]

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present embodiment, the case where the size of the camera shake amount display mark to be displayed is changed depending on the exposure time will be described in detail. The digital camera according to the present embodiment has substantially the same configuration and operation as the digital camera according to the first to fifth embodiments, and thus detailed description thereof is omitted, and camera shake recognition display processing ( The camera shake recognition display will be described in detail.

  FIG. 13 shows a flowchart of an example of the camera shake recognition display process of the present embodiment. Note that step 600 corresponds to step 100 (see FIG. 3) of the camera shake recognition display process of the first embodiment, step 602 is step 102, step 604 is step 104, step 612 is step 106, step 106. 614 corresponds to step 108, and step 616 corresponds to step 110. Step 606 corresponds to step 300 (see FIG. 9) of the camera shake recognition process of the fifth embodiment.

  First, in step 600, the size of the auxiliary frame for camera shake recognition is obtained from the camera shake permission condition setting unit 28. In the next step 602, the auxiliary frame for camera shake recognition 80 is displayed on the through image 84 of the LCD 18, and the next step In step 604, the camera shake amount display mark 82 is displayed, and in the next step 606, the planned exposure time is acquired.

  In the next step 608, the size of the camera shake amount display mark 82 corresponding to the acquired exposure time is selected. In the present embodiment, the correspondence between the exposure time and the size of the camera shake amount display mark 82 is stored in advance in a memory (not shown) of the camera shake amount display unit 30B, and the amount of camera shake is based on the correspondence. The size of the display mark 82 is selected, but the present invention is not limited to this. For example, a calculation formula for calculating the size of the camera shake amount display mark 82 from the exposure time is stored in advance, and the calculation formula is calculated by the calculation formula. May be.

  Note that as the exposure time becomes longer, it is more susceptible to camera shake. Therefore, in the present embodiment, the size of the camera shake amount display mark 82 is large when the exposure time is long, and is small when the exposure time is short.

  In the next step 610, the size of the displayed camera shake amount display mark 82 is changed to the selected size, and in the next step 612, the camera shake amount (acceleration direction and acceleration amount) is acquired from the camera shake detection unit 22. In the next step 514, the camera shake amount display mark 82 is moved to a position based on the calculated movement amount. In the next step 516, it is determined whether or not to end the process. And the movement of the camera-shake amount display mark 82 are repeated.

  The display of the camera shake recognition auxiliary frame 80 and the camera shake amount display marks 82 and 82A according to the present embodiment will be described with reference to FIG. FIG. 12A shows a case where the exposure time is a prescribed value, FIG. 12B shows a case where the exposure time is longer than that in the case of (A), and the camera shake amount display mark 82A is more than the camera shake amount display mark 82. It is getting bigger.

  Thus, even with the same amount of camera shake, the camera shake is within the allowable range in the case shown in FIG. 14A, and the camera shake is outside the allowable range in the case shown in FIG. Can be recognized.

  As described above, in the digital camera 10 of the present embodiment, the size of the camera shake amount display mark 82 is selected based on the exposure time, and the size of the camera shake amount display mark 82 displayed on the through image 84 of the LCD 18 is selected. Therefore, based on the exposure time, the photographer can recognize the amount of camera shake that has occurred automatically, and can more appropriately recognize the allowable range of camera shake.

  In the present embodiment, only the size of the camera shake amount display mark 82 is changed, but the size of the camera shake recognition auxiliary frame 80 may be changed at the same time. This case will be described with reference to FIG. FIG. 15A shows a case where the camera shake recognition auxiliary frame 80 and the camera shake amount display mark 82 have a prescribed size, and FIG. 15B shows a case where the exposure time is longer than (A). Thus, as the exposure time increases, the difference (M−N) between the size M of the camera shake recognition auxiliary frame 80 and the size N of the camera shake amount display mark 82 may be reduced. If the correspondence relationship between the time, the size M of the camera shake recognition auxiliary frame 80, and the size N of the camera shake amount display mark 82 is stored in advance, the size is selected based on the correspondence relationship. Good.

  As in the case of the first embodiment, a part of the through image displayed on the LCD 18 may be displayed as a cutout image, and the camera shake recognition display process is performed in step 104 of FIG. The processing of step 614 corresponding to corresponding step 604 and step 108 is similarly changed. Further, in step 608, the size to cut out the through image is selected, and in step 610, the size to be cut out may be changed. .

  [Seventh Embodiment]

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the present embodiment, a digital camera in the case where an informing unit for informing that camera shake exceeds an allowable range will be described in detail. The digital camera according to the present embodiment has substantially the same configuration and operation as those of the digital camera according to the first to sixth embodiments. Description is omitted.

  FIG. 16 is a block diagram showing an example of the main configuration of the electrical system of the digital camera 10A of the present embodiment. The digital camera 10A shown in FIG. 16 is different from the digital camera 10 of the first embodiment in that the digital camera 10A includes a notification unit 78.

  The notification unit 76 notifies the photographer that the camera shake exceeds the allowable range. In the present embodiment, the camera shake exceeds the allowable range on the image displayed on the LCD 18. The notification is made by displaying the effect.

  FIG. 17 shows a flowchart of an example of the camera shake recognition display process of the present embodiment. Note that step 700 corresponds to step 100 (see FIG. 3) of the camera shake recognition display process of the first embodiment, step 702 is step 102, step 704 is step 104, step 706 is step 106, step 106 708 corresponds to step 108 and step 714 corresponds to step 110, respectively.

  First, in step 700, the size of the auxiliary frame for camera shake recognition is acquired from the camera shake permission condition setting unit 28, and in the next step 702, the auxiliary frame for camera shake recognition is displayed on the through image 84 of the LCD 18, and the next step In step 704, the camera shake amount display mark 82 is displayed, in the next step 706, the amount of camera shake (acceleration direction and acceleration amount) is acquired from the camera shake detection unit 22, and in the next step 708, the position is based on the calculated movement amount. The camera shake amount display mark 82 is moved.

  In the next step 710, it is determined whether or not the position of the moved hand movement amount display mark 82 is outside the allowable range. In the present embodiment, when the camera shake amount display mark 82 appears outside the camera shake recognition auxiliary frame 80, it is determined that the camera shake amount is outside the allowable range, that is, the camera shake amount exceeds the allowable amount. If it is outside the allowable range, the determination is affirmative, and the process proceeds to step 712. After the notification unit 78 notifies the photographer that the camera shake exceeds the allowable range, the process proceeds to step 714.

  When the notification unit 78 is a color tone changing unit that changes the color tone of the image, the color tone of the displayed image is changed. A specific example of changing the color tone of the image displayed on the LCD 18 is shown in FIG. In FIG. 18, only the portion outside the camera shake recognition auxiliary frame 80 allowable range of the camera shake amount display mark 82B is displayed in black to indicate that the allowable range is exceeded. However, the present invention is not limited to this, and it may be different from the specified color tone. For example, the color tone of the entire through image 84 may be changed (monochrome, negative color, etc.), or the color inside and outside the camera shake recognition auxiliary frame 80 may be changed. This method may be used.

  In the present embodiment, the notification unit 78 may display on the LCD 18 that the camera shake exceeds the allowable range. For example, a message indicating that the camera shake exceeds the allowable range may be displayed. Also good.

  On the other hand, if the allowable range is not exceeded, the result is negative, and the process proceeds to step 714 to determine whether or not to end the present process. If the result is negative, acquisition of the amount of camera shake, movement of the camera shake amount display mark 82, and When it is outside the allowable range, the notification to the photographer is repeated, and when the result is affirmed, this processing is terminated.

  In the present embodiment, it is determined that the position of the camera shake amount display mark 82 is outside the allowable range when the position of the camera shake amount display mark 82 goes outside the camera shake recognition auxiliary frame 80. However, the present invention is not limited to this. You may make it judge based on.

  As described above, in the digital camera 10 of the present embodiment, when the camera shake amount display mark 82 goes out of the camera shake recognition auxiliary frame 80, it is determined that the camera shake is within the allowable range, and the notification unit 78 Since the notification is made on the LCD 18 screen, it is possible to notify the photographer with emphasis that the generated camera shake exceeds the allowable range.

  As in the case of the first embodiment, a part of the through image displayed on the LCD 18 may be displayed as a cutout image, and the camera shake recognition display process is performed in step 104 of FIG. The processing in step 708 corresponding to corresponding step 704 and step 108 may be similarly changed.

  [Eighth Embodiment]

  In the present embodiment, the case where the notification unit is a warning sound output unit that outputs a warning sound will be described in detail. The digital camera according to the present embodiment has substantially the same configuration and operation as the digital camera 10A according to the seventh embodiment, and thus detailed description thereof is omitted.

  The notification unit 76 according to the present embodiment is for notifying the photographer that the camera shake exceeds the allowable range by a warning sound. In the present embodiment, a speaker or the like provided in the notification unit 78 is provided. The sound source (not shown) generates a warning sound indicating that the camera shake exceeds the allowable range.

  The camera shake recognition display process of the present embodiment differs from the camera shake recognition display process (see FIG. 17) in the digital camera 10A of the seventh embodiment only in the manner of notification that is notified to the photographer by the notification unit in step 712. It is processing.

  In the present embodiment, a warning sound such as a beep sound or a message is emitted from the sound source provided in the notification unit 78 to notify that the camera shake exceeds the allowable range.

  As described above, in the digital camera 10 of the present embodiment, when the camera shake amount display mark 82 goes out of the camera shake recognition auxiliary frame 80, it is determined that the camera shake is within the allowable range, and the notification unit 78 Since the warning sound is output and notified, it is possible to notify the photographer's hearing that the generated camera shake exceeds the allowable range.

  [Ninth Embodiment]

  In the present embodiment, the case where the notification unit is a signal unit that vibrates the digital camera will be described in detail. The digital camera according to the present embodiment has substantially the same configuration and operation as the digital camera 10A according to the seventh embodiment, and thus detailed description thereof is omitted.

  The notification unit 76 according to the present embodiment is for notifying the photographer that the camera shake exceeds the allowable range by a physical behavior such as vibration. In the present embodiment, the notification unit 76 is provided. The digital camera 10 </ b> A is vibrated by a motor or the like (not shown).

  The camera shake recognition display process of the present embodiment differs from the camera shake recognition display process (see FIG. 17) in the digital camera 10A of the seventh embodiment only in the manner of notification that is notified to the photographer by the notification unit in step 712. It is processing.

  In the present embodiment, the fact that the camera shake exceeds the allowable range is notified by vibrating the digital camera 10 </ b> A by the motor provided in the notification unit 78.

  As described above, in the digital camera 10 of the present embodiment, when the camera shake amount display mark 82 goes out of the camera shake recognition auxiliary frame 80, it is determined that the camera shake is within the allowable range, and the notification unit 78 Since the digital camera 10A is vibrated and notified, it is possible to notify the photographer's tactile sense that the generated camera shake exceeds an allowable range.

It is a schematic block diagram which shows an example of schematic structure of the digital camera which is an imaging device which concerns on the 1st Embodiment of this invention. It is a block diagram which shows an example of the main structures of the electric system of the digital camera which concerns on the 1st Embodiment of this invention. It is a flowchart which shows an example of the camera shake recognition display process which concerns on the 1st Embodiment of this invention. It is explanatory drawing for demonstrating an example of the camera-shake which concerns on the 1st Embodiment of this invention. It is explanatory drawing for demonstrating an example of the camera shake recognition display which concerns on the 1st Embodiment of this invention. It is explanatory drawing for demonstrating the other example of the camera shake recognition display which concerns on the 1st Embodiment of this invention. It is a flowchart which shows an example of the camera shake recognition display process which concerns on the 2nd Embodiment of this invention. It is explanatory drawing for demonstrating an example of the camera shake recognition display which concerns on the 2nd Embodiment of this invention. It is a flowchart which shows an example of the camera shake recognition display process which concerns on the 3rd Embodiment of this invention. It is a flowchart which shows an example of the camera shake recognition display process which concerns on the 4th Embodiment of this invention. It is a flowchart which shows an example of the camera shake recognition display process which concerns on the 5th Embodiment of this invention. It is explanatory drawing for demonstrating an example of the camera shake recognition display which concerns on the 5th Embodiment of this invention. It is a flowchart which shows an example of the camera shake recognition display process which concerns on the 6th Embodiment of this invention. It is explanatory drawing for demonstrating an example in the case of changing the magnitude | size of the camera-shake amount display mark in the camera-shake recognition display which concerns on the 6th Embodiment of this invention. FIG. 25 is an explanatory diagram for explaining an example of changing the sizes of both the camera shake recognition auxiliary frame and the camera shake amount display mark in camera shake recognition display according to the sixth embodiment of the present invention; It is a block diagram which shows an example of the main structures of the electric system of the digital camera which concerns on the 7th Embodiment of this invention. It is a flowchart which shows an example of the camera shake recognition display process which concerns on the 7th Embodiment of this invention. It is explanatory drawing for demonstrating an example of the display of the alert | report that the camera shake which concerns on the 7th Embodiment of this invention is outside an allowable range.

Explanation of symbols

10 Digital camera 18 LCD
DESCRIPTION OF SYMBOLS 20 Image pick-up part 22 Camera shake detection part 28 Camera shake permission condition setting part 30 Camera shake recognition display part 30A Camera shake recognition auxiliary frame display part 30B Camera shake amount display part 40 Camera shake correction part 78 Notification part 80, 81 Camera shake recognition auxiliary frame 82 Camera shake amount display Mark 83 Cutout image

Claims (13)

Imaging means for imaging a subject;
Display means for displaying an image based on image data of a subject image imaged by the imaging means;
Camera shake detection means for detecting the direction and amount of camera shake that occurs during imaging by the imaging means;
On the display image displayed on the display means, a camera shake recognition auxiliary frame display means for displaying a camera shake recognition auxiliary frame indicating an allowable range of camera shake;
Camera shake amount display means for displaying a predetermined mark or a cutout image obtained by cutting out a part of the display image at a position corresponding to the direction and amount of camera shake detected by the camera shake detection means on the display image;
An imaging apparatus comprising:   The imaging apparatus according to claim 1, wherein the camera shake detection unit includes an angular acceleration sensor or an acceleration sensor. An allowable condition setting means for setting the allowable condition of the camera shake;
3. The photographing apparatus according to claim 1, wherein the camera shake recognition auxiliary frame display unit changes a size of the camera shake recognition auxiliary frame based on a setting of the allowable condition setting unit. .   The photographing apparatus according to claim 3, wherein the permissible condition setting unit sets angular acceleration or acceleration as the permissible condition for camera shake.   The allowable condition setting unit increases the size of the camera shake recognition auxiliary frame as the exposure time decreases, so that the size of the camera shake recognition auxiliary frame decreases as the exposure time of the imaging unit increases. The photographing apparatus according to claim 3 or 4, wherein the photographing apparatus is changed to be. Comprising camera shake correction means for correcting camera shake detected by the camera shake detection means;
In the case where the allowable condition setting unit is set to perform the camera shake correction by the camera shake correction unit, the size of the auxiliary frame for camera shake recognition is made larger than that in the case where the camera shake correction is not performed. The photographing apparatus according to claim 3, wherein the photographing apparatus is characterized.   7. The apparatus according to claim 1, wherein the camera shake amount display unit changes a position for displaying the predetermined mark or the cut image based on an exposure time of the imaging unit. The photographing apparatus described.   The camera shake amount display means increases the size of the predetermined mark or the cutout image as the exposure time of the imaging means increases, and increases the size of the predetermined mark or the cutout image as the exposure time decreases. The photographing apparatus according to claim 1, wherein the photographing apparatus is changed so as to be reduced in size.   2. An informing means for informing that the amount of camera shake exceeds an allowable amount when the predetermined mark or the cut-out image is located outside the auxiliary frame for camera shake recognition. The imaging device according to claim 8.   The photographing apparatus according to claim 9, wherein the notification unit is a color tone changing unit that changes a color tone of an image displayed on the display unit.   11. The photographing apparatus according to claim 9, wherein the notification unit is a warning sound output unit that outputs a warning sound.   The photographing apparatus according to claim 9, wherein the notifying unit is a vibrating unit that vibrates the photographing apparatus. Image the subject,
Display an image based on the image data of the captured subject image,
Detect the direction and amount of camera shake that occurs during imaging,
On the displayed image, a camera shake recognition auxiliary frame indicating the allowable range of camera shake is displayed.
A method of controlling a photographing apparatus, comprising: displaying a predetermined mark or a cut-out image obtained by cutting out a part of the display image at a position corresponding to the direction and amount of camera shake on the display image.

Images