WO2011043024A1 - 撮影装置、方法、プログラムおよび回路 - Google Patents
撮影装置、方法、プログラムおよび回路 Download PDFInfo
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- WO2011043024A1 WO2011043024A1 PCT/JP2010/005726 JP2010005726W WO2011043024A1 WO 2011043024 A1 WO2011043024 A1 WO 2011043024A1 JP 2010005726 W JP2010005726 W JP 2010005726W WO 2011043024 A1 WO2011043024 A1 WO 2011043024A1
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/18—Signals indicating condition of a camera member or suitability of light
- G03B17/20—Signals indicating condition of a camera member or suitability of light visible in viewfinder
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0007—Movement of one or more optical elements for control of motion blur
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2217/00—Details of cameras or camera bodies; Accessories therefor
- G03B2217/005—Blur detection
Definitions
- the present invention relates to a photographing apparatus and a method for displaying a subject and movement of the photographing apparatus during photographing.
- a camera there is a camera that stores shooting conditions when camera shake occurs and compares the shooting conditions with the current shooting conditions. If the current shooting conditions match the stored conditions when the camera shake occurred in the past, it is determined that there is a possibility of camera shake, and the user is warned (for example, Patent Document 1). reference).
- the present invention solves such a conventional problem, and the degree of camera shake can be confirmed even in the case of long exposure (when the exposure period is long). Preventing camera shake during exposure by preventing the user from shaking the camera voluntarily. Also provided is a photographing apparatus and a photographing method in which a user can voluntarily suppress the amount of camera shake during exposure so that a subsequent camera shake correction process is performed well and a high-quality image is obtained. The purpose is to do.
- an object of the present invention is to provide a photographing apparatus or the like that can prevent the occurrence of (large) camera shake during the exposure period even when the exposure period is long, and prevent the image quality from being deteriorated due to the camera shake during the exposure period.
- an imaging apparatus receives an imaging optical system and light incident through the imaging optical system, and shows the received light as an image represented by the light.
- an image sensor that converts image data
- a memory that stores the converted image data output from the image sensor (the image sensor)
- a display unit that displays an image (display image)
- a motion detection unit that detects motion information indicating the motion of the imaging device, and an image that generates an image that displays the motion of the imaging device during the exposure period, which is indicated by the motion information detected by the motion detection unit
- the user can confirm the subject by seeing the presented pseudo through image, and voluntarily. Furthermore, image stabilization can be prevented by stabilizing the photographing apparatus.
- the generated image indicating the degree of movement is an image that displays the movement trajectory of the photographing apparatus.
- an image of a movement locus may be displayed during exposure (during the exposure period).
- the user can check the movement trajectory (movement trajectory) of the photographing apparatus, and by stabilizing the photographing apparatus voluntarily, camera shake can be prevented.
- the generated image indicating the degree of movement is an image indicating the direction and magnitude of the movement of the photographing apparatus (by an arrow or the like).
- the image generation unit outputs the image indicated by the image data stored in the memory and output by the imaging device immediately before the start of exposure (for exposure in the exposure period).
- a composite in which an image indicating the degree of motion is superimposed (for example, by the image generation unit or the like) on a displacement-corrected image added with movement due to the motion indicated by the motion information detected by the motion detection unit.
- An image is generated, and the display control unit displays the generated composite image.
- the generated composite image is displayed during exposure.
- the user can confirm the subject, and at the same time, can accurately grasp the movement of the photographing apparatus, and can stabilize the photographing apparatus independently to prevent camera shake.
- the display control unit displays an enlarged image obtained by enlarging a part of the image generated by the image generation unit during the exposure period.
- the cost can be reduced without requiring an image sensor having a size larger than the size of the actually captured image.
- the enlarged display allows the user to confirm even a small blur, and the effect of preventing camera shake can be further enhanced by voluntarily stabilizing the photographing apparatus.
- the motion detection unit may be an acceleration sensor, an angle sensor, or the like, or may be configured by both of them.
- the motion detection unit may be a gyro sensor or the like.
- the display control unit displays the image generated by the image generation unit during exposure (during the exposure period).
- FIG. 1 is a functional configuration diagram of the photographing apparatus.
- FIG. 2 is a flowchart of the photographing method.
- FIG. 3 is a diagram of a display example.
- FIG. 4 is a diagram of an enlarged display example.
- FIG. 5 is a functional configuration diagram of the photographing apparatus.
- FIG. 6 is a flowchart of the photographing method.
- FIG. 7 is a functional configuration diagram of the photographing apparatus.
- FIG. 8 is a flowchart of the photographing method.
- FIG. 9 is a diagram of a trajectory display example.
- FIG. 10 is a diagram illustrating a display example of a range where camera shake can be corrected.
- FIG. 11 is a diagram illustrating an example of the movement degree display.
- FIG. 12 shows an image.
- FIG. 1 is a functional configuration diagram of the photographing apparatus.
- FIG. 2 is a flowchart of the photographing method.
- FIG. 3 is a diagram of a display example.
- FIG. 13 is a diagram illustrating effects in the embodiment.
- FIG. 14 is a diagram illustrating processing in camera shake correction.
- FIG. 15 is a diagram illustrating an image.
- FIG. 16 is a diagram illustrating an operation in the conventional example and an operation in the imaging apparatus.
- FIG. 17 is a flowchart of processing in the photographing apparatus.
- FIG. 18 is a block diagram of the photographing apparatus.
- the imaging apparatus (imaging apparatus 1: FIG. 1 and the like) of the embodiment receives an imaging optical system (imaging optical system 11) and light incident through the imaging optical system (light 11L), and receives the received light.
- An image sensor (image sensor 12) that converts the image data (first image data 12D) indicating the image represented by the light (first image 12P), and the image sensor outputs the image sensor (the image sensor).
- a memory (memory 13) for storing the converted image data (first image data 12D), a display unit (display unit 14) for displaying an image (image (display image) 14P), and an exposure period (exposure).
- a motion detection unit (motion detection unit 15) that detects motion information (information 15I: FIG. 1, FIG.
- the movement 1My of the photographing apparatus 1a caused by the camera shake Uy in the exposure period 1y despite the long exposure period 1y (for example, a period longer than 1 / 3.75 second of the second row in FIG. 13).
- a second image 16P is generated and displayed (see the display image 14P in FIGS. 3, 16, and 1).
- the user 1U who has viewed the displayed second image 16P is prompted by the photographing apparatus (display unit or the like) to reduce the camera shake Uy.
- the image 12x (FIG. 1, still image, etc.) generated by exposure can be improved in image quality.
- the exposure period is an exposure period in exposure that is started by pressing an imaging button (imaging button 1B: FIG. 18), and is 1 / 3.75 seconds ( (Refer to FIG. 13), and the imaging device includes the exposure period and a period before exposure (period 1x before exposure) before the exposure period.
- the camera shake camera shake Ux: FIG. 16) of the user (user 1U: FIG. 18 etc.) having the photographing apparatus displayed as a through image only during the period before the exposure (the 16th second row).
- the first image (first image 12P: FIG. 1, FIG. 3, etc.) is generated (S411 in FIG. 17), and during the exposure period (third line in FIG.
- a second said image (second image 16a) is generated (S13), and the previous The display unit displays the generated first image (first image 12P: FIG. 3, FIG. 16, etc.) as the through image in the period before the exposure (second row in FIG. 16).
- the image blur (camera shake Uy) during the exposure period may be displayed (S14) by displaying the image 16a: FIG. 3, FIG.
- the first image 12P may be displayed to display a through image (the image 12z (such as FIG. 18) formed on the image sensor 12).
- the display unit displays the second image (second image 16a) in the exposure period (the third row in FIG. 16), so that the through image is simulated in the exposure period.
- an image 12z e.g., FIG. 18 that is imaged (estimated) on the image sensor 12 may be displayed.
- second image 16a a pseudo through image (second image 16a) is also displayed during the exposure period, and the camera shake Uy can be more easily understood by the user 1U.
- the pseudo display means that the original (normal) through image is not displayed in the period 1x before the exposure, but the second image generated by adding the change 16aM in the exposure period 1y. 16a means that it is displayed as a pseudo through image.
- the generated image (second image 16P: FIG. 16, third row, third column, FIG. 3, FIG. 4, FIGS. 9 to 12, etc.) may be displayed.
- the distance and direction (vector 16cX (FIG. 16), the distance and direction of the change 16aM from the position 12Pe indicated by the position 16Pe in FIG.
- the direction and the like of the movement 1My of the photographing apparatus may be shown by the indicated distance and direction.
- the image quality can be improved by performing an operation in an appropriate direction or the like by the user corresponding to the direction or the like of the movement 1My shown.
- the direction and magnitude (vector 16cX (FIG. 16)) of the movement of the photographing apparatus during the exposure period are shown, and the image quality can be improved.
- FIG. 1 is a functional configuration diagram of an imaging apparatus (imaging apparatus (camera) 1a) according to Embodiment 1 of the present invention.
- the photographing apparatus is configured such that an image (second image 16P: FIG. 3, FIG. )) Is displayed.
- the user can confirm the movement of the subject and the photographing device, and also stabilizes the photographing device independently and prevents camera shake.
- the photographing apparatus 1a includes a photographing optical system 11, an image sensor 12, a memory 13, a display unit 14, a motion detection unit 15, an image generation unit 16, and a display control unit 17.
- the photographing optical system 11 is a photographing optical system for receiving light from a subject (for example, the subject 1t) and forming an image on the image sensor 12.
- the image sensor 12 receives light incident through the photographing optical system 11 and converts it into image data. That is, for example, the received light may be converted into image data (first image data 12D) of an image represented by the light.
- the memory 13 stores image data (first image 12P, first image data 12D) output from the image sensor 12. Here, there is no output from the image sensor 12 during exposure. In this case, the memory 13 stores the image immediately before the exposure and stores the image immediately before the exposure until the exposure.
- the display unit 14 displays a subject to be photographed by the user.
- the motion detection unit 15 detects a motion direction and a motion amount, which are motion information of the photographing apparatus. That is, for example, the information 15I that specifies the movement direction and the amount of movement may be detected.
- the image generation unit 16 generates an image (second image 16P: FIG. 3 or the like) that displays the motion of the photographing apparatus based on the motion information detected by the motion detection unit 15.
- FIG. 2 is a flowchart of the first embodiment of the present invention.
- the image generation unit 16 acquires the image immediately before the start of exposure stored in the memory 13 at the start of exposure (at the same time as the time of S1A, a nearby time, etc.) (S11). Moreover, the detected motion information is also acquired from the motion detection unit 15 (S12). Then, based on the acquired motion information, the image immediately before the start of exposure is shifted to generate an image (second image 16P: see FIG. 3 and the like) in which position correction is performed by the shift (S13).
- the display control unit 17 displays the position-corrected image on the display unit 14 (S14).
- the motion information and the position-corrected image are continuously updated and displayed in accordance with the frame rate of the display unit 14 (S15: No, S12 to S14). That is, for example, at each time, an image at that time may be generated, and an image displayed at that time may be updated to the generated image.
- a through image (second image 16P) can be displayed in a pseudo manner even during a period in which there is no output from the image sensor 12 during exposure (during the exposure period).
- the user can check the movement of the subject and the photographing apparatus even during exposure, and can independently stabilize the photographing apparatus and suppress camera shake.
- the image immediately before the start of exposure is shifted.
- the position-corrected image may have a blank portion.
- a blank portion may be prevented from being generated by using an image sensor having a size larger than the captured image size.
- FIG. 3 is a diagram of a display example in the first embodiment of the present invention.
- a position-corrected image (image 16a (second image 16P)) is displayed, and the user grasps the state of camera shake. Be made possible.
- FIG. 4 is a diagram of an enlarged display example in the first embodiment of the present invention.
- the position-corrected image is enlarged and displayed as shown in FIG. 4, for example (image 16b), it becomes easier to grasp the state of camera shake.
- the above-described blank is further added to the size of the image pickup element (that is, for example, the first image 12P (FIG. 3 and the like) larger than the size of the actually displayed captured image. Therefore, an effect of cost reduction can be obtained.
- motion detection is performed during shooting, an image immediately before the start of exposure is processed based on motion information obtained by motion detection, and a through image is generated and displayed in a pseudo manner.
- the user can check the degree of movement of the subject and the photographing device, and can stabilize the photographing device independently to prevent camera shake.
- FIG. 5 is a functional configuration diagram of the imaging device 1b according to the second embodiment of the present invention.
- the photographing apparatus of the present invention further includes a mechanical camera shake correction unit 18.
- a mechanical camera shake correction unit 18 for example, an optical camera shake correction method, a sensor shift camera shake correction method, or the like may be used.
- FIG. 6 is a flowchart of the second embodiment.
- the image generation unit 16 acquires the image immediately before the exposure start stored in the memory 13 at the start of exposure (S11). Moreover, the detected motion information is also acquired from the motion detection unit 15 (S12). Further, camera shake correction information (information 18I: FIG. 5) is acquired from the mechanical camera shake correction unit 18 (S3a).
- the camera shake correction information is a correction direction and a correction amount (information including, etc.) for performing camera shake correction mechanically. That is, for example, a portion (movement 21d) between the correction direction and the correction width (amount) indicated by the acquired camera shake correction information in the movement 211m (FIG. 14) of the photographing apparatus 1b is canceled by the correction. Also good.
- the correction range of the mechanical camera shake correction unit 18 is subtracted from the motion information of the motion detection unit 15 to calculate a position correction amount (S3b). Then, based on the calculated position correction amount, the image generation unit 16 generates a position correction image (second image 16P) (S13). Then, the display control unit 17 displays the position correction image thus generated based on the position correction amount on the display unit 14 (S14). Before the exposure is completed, the motion information, the camera shake correction information, and the position-corrected image are continuously updated according to the frame rate of the display unit 14, and the generated position-corrected image is displayed. Thus, a through image can be displayed in a pseudo manner even during exposure.
- the second image 16P corresponding to the motion 212n after the motion 21d is canceled is generated and displayed by the correction, and the second image 16P is displayed with higher accuracy and more accurately. Is avoided and camera shake can be reduced more sufficiently.
- the position change 16aM shown in FIG. 3 may be a position change in the movement 212n after the correction is canceled.
- FIG. 7 is a functional configuration diagram of the imaging device 1c according to the third embodiment of the present invention.
- the same components as those in FIG. 7 are identical to FIG. 7 and the same components as those in FIG. 7;
- FIG. 8 is a flowchart of the third embodiment.
- the image generation unit 16 acquires motion information (information 15I) from the motion detection unit 15 at the start of exposure (S31). Then, based on the motion information, a trajectory image of the movement of the photographing apparatus (see a second image 16c in FIG. 9 described later) is generated (S32). Then, the display control unit 17 displays the trajectory image on the display unit 14 (S33). By continuously updating and displaying the motion information and the trajectory image according to the frame rate of the display unit 14 until the end of the exposure (S34: No, S31 to S33), the motion in the photographing apparatus during the exposure Can be displayed.
- FIG. 9 is a diagram showing a trajectory display example in the third embodiment of the present invention.
- the trajectory image (second image 16c, trajectory 91) is centered on, for example, the position of the photographing apparatus at the start of exposure (the position is indicated by the center of the second image 16c). ), The locus of movement (trajectory 91) in the photographing apparatus during exposure is displayed.
- a guide line (line 92) such as a circle may be displayed so that the magnitude of the movement can be easily grasped quantitatively.
- a line (arc) 92 indicating the movement of the photographing apparatus having a size at the radius may be indicated by the radius from the center (starting point 16cA) of the second image 16c.
- the ratio between the radius and the distance from the center of the location in the second image 16c indicates the magnitude of the motion at that location, which is easy to understand and the motion at that location.
- the size of can be displayed.
- an electronic camera shake correction unit 19 (FIG. 7) is further provided.
- the electronic camera shake correction unit 19 corrects camera shake of an image after shooting. Note that any correction method may be used as long as camera shake can be corrected from one photographed image.
- FIG. 10 is a diagram showing a display example of a range in which camera shake correction is possible in the third embodiment of the present invention.
- the image generation unit 16 acquires from the electronic camera shake correction unit 19 a range of camera shake (range information 19I: FIG. 7) in which the image can be corrected (good). (Range (camera shake correction possible range) 101).
- a photographing apparatus equipped with an electronic camera shake correction function displays a range (range 101) in which camera shake can be corrected during exposure.
- range 101 range 101
- camera shake correction unit 19 displays a range in which camera shake can be corrected during exposure.
- the motion trajectory (trajectory 91) of the photographing apparatus is displayed.
- other display methods may be used as long as the direction of motion and the magnitude of motion can be grasped.
- FIG. 11 is a diagram showing an example of the degree of movement display in the third embodiment of the present invention.
- the third embodiment is combined with the first and second embodiments, and includes a pseudo-through image (see FIGS. 3 and 4) and a trajectory or arrow (trajectory 91, (See arrow 111) may be displayed (see second image 16f in FIG. 12).
- a trajectory or arrow trajectory 91, (See arrow 111)
- the motion information image such as the trajectory is referred to a part of the display area (the upper left part where the video 16fa in FIG. 12 is present. May be displayed at the end, four corners, etc.).
- the image sensor 12 may specifically be a CCD image sensor (Charge Coupled Device Image Sensor), for example.
- CCD image sensor Charge Coupled Device Image Sensor
- this imaging device is a new imaging device that has not yet been manufactured and distributed in the market.
- the size of camera shake that occurs in each length period when the moving image is not blocked and the displayed moving image is visible to the user Indicated.
- the second image 16P is not displayed during the exposure period 1y, and the mere black image 14t. It is simulated that is displayed.
- the second image 16P (such as FIG. 3) is displayed instead of the simple black image 14t in the present photographing apparatus. Is simulated.
- camera shake in the conventional example is 29 pixels in the horizontal direction and 13 pixels in the vertical direction. Estimated as blurring.
- camera shake in the present photographing device is 6 pixels in the horizontal direction and 6 in the vertical direction. Estimated to be pixel camera shake.
- the exposure period may be, for example, 1/3 second or even shorter than 1/3 second.
- the exposure period may be (1 / 3.75) seconds, for example.
- the minimum value of the reduction range of the reduction in camera shake in this photographing apparatus is predicted to be 5 pixels or more (in the exposure period of 1 / 3.75 seconds in FIG. 4 columns), vertical reduction width (5 pixels), etc.). Further, the maximum value of the reduction width is predicted to be 23 pixels or more (see the horizontal reduction width (23 pixels) in the exposure period of 1/2 second (fourth row and fourth column)).
- the following operation may be performed in a certain situation.
- the following operation is merely an example, for example.
- the image sensor 12 provided in the camera (photographing device) 1 uses an exposure in the exposure period 1y (FIG. 16) to generate an image 12x (such as FIG. 1) before the exposure period 1y.
- the first image 12P (FIGS. 1, 3, 16, etc.) showing the camera shake Ux is generated, and in the exposure period 1y, the first image 12P is generated. It may not be performed (S411 in FIG. 17).
- the generated first image 12P may be stored until the exposure period 1y (memory 13, S412).
- a change (position change) 16aM (FIG. 3 or the like) due to the detected motion 1My is added to the stored first image 12P (the direction is changed by the direction and distance of the change 16am).
- the second image 16P may be generated (image generation unit 16, S13).
- the generated second image 16P is displayed to the user (as an image (display image) 14P (FIG. 1)), and a change 16aM (FIG. 3) applied to the displayed second image 16P.
- the camera shake Uy (FIG. 3, FIG. 16, etc.) during the exposure period 1y, which is the basis of (), may be displayed (display unit 14, FIG. 2, FIG. 1, etc.).
- the above-described first image 12P (FIG. 1, FIG. 3, etc.) is displayed in the period 1x before exposure, so that the imaging element 12 in the period 1x before exposure is displayed.
- An image 12z to be formed (through image, FIG. 1 and the like) may be displayed.
- the second image 16P after the change 16aM is applied is displayed (FIG. 3, FIG. 16, etc.), and a pseudo-through image (image is formed) Image 12z (FIG. 1 etc.)) may be displayed.
- the camera shake Uy is displayed in the period 1x before exposure, and the user who has viewed the displayed camera shake Uy is caused to reduce the camera shake Uy. It does not stop only when Uy is reduced (second row and third column in FIG. 16).
- the second image 16a to which the change 16aM is applied is displayed (third row and third column), and the camera shake Uy in the exposure period 1y is displayed, and exposure is performed. Even in the period 1y, the camera shake Uy can be reduced.
- the image quality of the image 12x (FIG. 1, etc. mentioned above) produced
- the exposure period 1y is a relatively long period, such as a period in each row in FIG. It is done.
- the camera shake Uy is displayed in the exposure period 1y even though the exposure period 1y is long, and the camera shake Uy in the exposure period 1y is also reduced, so that the image quality is improved. Lowering the image quality is avoided and the image quality can be improved.
- the camera shake Uy is not displayed because, for example, a pure black image 14t is displayed in the exposure period 1y. That is, in the conventional example, when the exposure period 1y is a long period recently (and in the near future), the camera shake Uy becomes large and the image quality becomes low.
- a through image is displayed in a pseudo manner in the exposure period 1y (see the second image 16a in FIGS. 3, 4, and 16), and the camera shake Uy in the exposure period 1y is determined by the user. Therefore, the camera shake Uy is surely reduced and the image quality can be surely improved.
- the exposure period 1y is, for example, a period in which the camera 1 starts when the user 1U performs an operation to push down the imaging button 1B (FIG. 18).
- the applied change 16aM (FIG. 3) is a change in position from the position 12Pe before the movement from the position 12Pe in the first image 12P to the position 16Pe moved by the detected movement 1My. It is.
- the image 12x (FIG. 1) generated by exposure in the exposure period 1y is, for example, a still image.
- a second image 16b (FIG. 4) is generated by enlarging a part of the region 31Pc (FIG. 3) in the first image 12P (FIG. 3). May be displayed.
- a second image 16b is generated in which a change 16bM (FIG. 4) obtained by enlarging the change 16aM (FIG. 3) due to the camera movement 1My due to the camera shake Uy in the exposure period 1y is added. May be. That is, by such an enlarged display, the camera shake Uy may be indicated by an enlarged larger change 16bM. This makes it easier for the user to understand the camera shake Uy.
- a second image 16c (FIG. 9) including a locus 91 of the movement 1My (FIGS. 3, 16, 18, etc.) of the camera 1 in the exposure period 1y is generated. And may be displayed. That is, the camera shake Uy may be displayed by the locus 91 included in the displayed second image 16c.
- the start point 16cA of the trajectory 91 indicating the camera shake Uy with a magnitude of 0 at the start time of the exposure period 1y is, for example, the second You may have the center position in the image 16c (FIG. 9).
- the range 101 is, for example, a range in which the electronic camera shake correction unit 19 (FIG. 7) can appropriately correct the image 12x generated by exposure (see FIG. 7). Narrower range, etc.).
- a locus 91 (upper left in FIG. 12) is added (synthesized) to the first image 12P (FIG. 3), and the captured first image 12P is added.
- a second image 16f (FIG. 12) including both the included video 16fx (FIG. 12) and the locus 91 (video 16fa) may be generated and displayed.
- the second arrow 16eA is displayed, and the direction opposite to the direction of the camera shake Uy that the second arrow 16eA has is shown, thereby indicating the direction of the hand movement that eliminates the camera shake Uy. Then, the movement by the user 1U in the direction of the hand movement shown may be prompted. Thereby, a user's operation can be made easier.
- the second image 16g includes, for example, both the second arrow 16eA having the opposite direction and the first arrow 111 (not shown) described above. But you can.
- Second image 16f (video 16fa) in FIG. 12
- range 101 (second image 16d in FIG. 10)
- first arrow 111 (second image 16e in FIG. 11)
- second An arrow 16eA (such as the second image 16g in FIG. 15) may be displayed.
- a video that does not include the video 16fx (FIG. 12) included in the first image 12P may be generated and displayed (FIG. 9). (See the second image 16c and the like).
- the exposure period 1y is often made longer.
- the exposure period may be longer.
- the resolution of the image sensor 12 is being increased. That is, for example, the resolution may be increased due to spec competition among manufacturers. When the resolution is increased, the exposure period may be longer.
- the exposure period is longer and is more likely.
- the above-described configuration can be derived that can improve the image quality even when the exposure period is long.
- the exposure period 1y in the photographing apparatus 1 may be, for example, a period of about 1/15 seconds or a period of 1/15 seconds or more.
- a period of 1/15 seconds or more is more preferable because it is predicted that an appropriate operation is relatively easy to perform.
- one first image 12P may be generated by the image sensor 12 every 1/30 seconds in the period 1x before exposure.
- the image generation unit 16 generates one first image 12P in the period 1x before exposure.
- a second image 16P may be generated.
- one first image 12P may be generated in 1/30 seconds.
- the interval at which the first image 12P is generated and displayed (1/30 seconds) and the interval at which the second image 16P is generated and displayed (1/30 seconds) may be the same.
- the second image 16P is generated and displayed at the same interval (1/30 seconds), and the generation and display rates are the same (1/30 seconds).
- 1U a relatively easy-to-view display is possible.
- the motion detection unit may detect the direction (angle 1Mt: FIG. 18) and the size (size 1Ms) of the motion (motion 1My) of the imaging apparatus.
- the image generation unit is stored in the memory that is output by the imaging device (in the period 1x between exposures) immediately before the start of exposure (in the exposure period (exposure period 1y: FIG. 16)).
- the motion information (information 15I: FIG. 1, FIG. 3, etc.) detected by the motion detector
- a displacement correction image (second image 16a) to which movement (movement of position in the change 16aM (FIG. 3)) by the movement (movement 1My) shown is added is generated, and the display control unit is generated
- the misalignment correction image may be displayed on the display unit.
- the generated images indicating the degree of movement are images that display the locus (trajectory 91) of the movement (movement 1My) of the imaging apparatus. It may be.
- the generated image (first image 16e: FIG. 11) showing the degree of movement is in the direction (angle 1Mt: FIG. 18) and size of the movement (movement 1My: FIG. 18 and the like) of the photographing apparatus. It may be an image (second image 16e including the first arrow 111 in the direction and the size) representing the height (size 1My).
- the image generation unit is indicated by the image data (first image data 12D) stored in the memory, which is output by the imaging device immediately before the start of exposure (in the period 1x before exposure).
- a displacement-corrected image (first image 12P) obtained by adding movement (movement at change 16aM) due to the movement (movement 1My) indicated by the movement information detected by the movement detection unit to the image (first image 12P).
- a composite image (second image 16f) obtained by superimposing an image (video 16fa: FIG. 12) indicating the degree of movement (trajectory 91, etc .: FIG. 12) on the second image 16a (see FIG. 3).
- the display control unit may generate and display the generated composite image (second image 16f).
- the display control unit enlarges an enlarged image (second image 16b: FIG. 3) of a part (for example, the region 31Pc: FIG. 3) of the image (image 12P (FIG. 3)) generated by the image generation unit. 4) may be displayed during the exposure period.
- the change (position change 16aM: FIG. 3) applied to the stored first image (first image 12P) is mechanically detected from the detected motion (movement 211m: FIG. 14). It may be a change in the movement (movement 212n: FIG. 14) after the part (movement 21d: FIG. 14) to be corrected by the camera shake correction (mechanical camera shake correction unit 18: FIG. 5) is subtracted.
- the second image 16b to which the position change 16bM from the more accurate movement after the portion to be corrected is subtracted is generated and displayed, and the camera shake Uy is more accurately displayed. (Camera shake due to movement after movement is deducted by correction) can be displayed.
- the above-described rate in the exposure period 1y may be higher than the rate in the period 1x before exposure.
- the computer 1J may be configured by a part of the photographing apparatus 1 such as a CPU (Central Processing Unit) or the entire photographing apparatus 1.
- a CPU Central Processing Unit
- an integrated circuit or the like on which one or more functions described above are mounted may be constructed, a method including one or more processes described above may be constructed, and one or more functions described above may be configured.
- a computer program to be implemented on a computer may be constructed, or a data structure of the computer program may be constructed.
- the camera shake suppression method of the imaging apparatus according to the present invention can prevent camera shake by displaying the movement information of the subject and / or the imaging apparatus during exposure and by the user voluntarily stabilizing the imaging apparatus. . This is useful for preventing camera shake in a photographing apparatus having an electronic display unit.
Abstract
Description
図1は、本発明の実施の形態1における撮影装置(撮影装置(カメラ)1a)の機能構成図である。
図5は、本発明の実施の形態2における撮影装置1bの機能構成図である。図5において、図1と同じ構成要素については適宜、同じ符号を用い、説明を省略する。
図7は、本発明の実施の形態3における撮影装置1cの機能構成図である。図7において、図1と同じ構成要素については適宜、同じ符号を用い、説明を省略する。
1My 動き
1y 露光期間
11 撮影光学系
12 撮像素子
13 メモリ
14 表示部
15 動き検出部
16 画像生成部
16a 画像
17 表示制御部
18 機械的な手ブレ補正部
19 電子式手ブレ補正部
91 動き軌跡
92 ガイド線
101 手ブレ補正可能範囲
111 矢印
Claims (14)
- 撮影光学系と、
前記撮影光学系を介して入射した光を受けて、受けた光を、当該光により表される画像を示す画像データに変換する撮像素子と、
前記撮像素子から出力した、変換された前記画像データを記憶するメモリと、
画像を表示する表示部と、
露光期間における、当該撮影装置の動きを示す動き情報を検出する動き検出部と、
前記動き検出部で検出した前記動き情報により示される、前記露光期間における、当該撮影装置の前記動きを表示する画像を生成する画像生成部と、
表示される前記画像として、生成した前記画像を前記表示部に表示させる表示制御部とを備えた撮影装置。 - 前記動き検出部は、当該撮影装置の動きの方向及び大きさを検出する請求項1記載の撮影装置。
- 前記画像生成部は、露光開始直前に前記撮像素子により出力された、前記メモリに記憶されている前記画像データにより示される前記画像に対して、前記動き検出部で検出した前記動き情報により示される前記動きによる移動が加えられた位置ずれ補正画像を生成し、
前記表示制御部は、生成された当該位置ずれ補正画像を前記表示部に表示させる請求項1記載の撮影装置。 - 前記画像生成部は、前記動き検出部で検出した前記動き情報に基づいて、当該撮影装置の前記動きの動き度合いを示す前記画像を生成し、
前記表示制御部は、生成された、前記動き度合いを示す前記画像を表示させる請求項1記載の撮影装置。 - 生成される、前記動き度合いを示す前記画像は、当該撮影装置の前記動きの軌跡を表示する画像である請求項4記載の撮影装置。
- 生成される、前記動き度合いを示す前記画像は、当該撮影装置の前記動きの方向及び大きさを表す画像である請求項4記載の撮影装置。
- 前記画像生成部は、露光開始直前に前記撮像素子により出力された、前記メモリに記憶されている前記画像データにより示される前記画像に対して、前記動き検出部で検出した前記動き情報により示される前記動きによる移動が加えられた位置ずれ補正画像に対して、前記動き度合いを示す画像を重ね合わせた合成画像を生成し、
前記表示制御部は、生成された前記合成画像を表示させる請求項1記載の撮影装置。 - 前記表示制御部は、前記画像生成部で生成した前記画像の一部が拡大された拡大画像を、前記露光期間中に表示させる請求項1記載の撮影装置。
- 前記露光期間は、撮像ボタンが押されることにより開始される露光での露光期間であり、1/3.75秒以上に長い期間であり、
前記撮像素子は、
前記露光期間と、前記露光期間よりも前の、露光前の期間とのうちで、
前記露光前の期間にのみ、スルー画像として表示される、当該撮影装置を持つユーザの手ブレを示す第1の前記画像を生成し、
前記露光期間には、手ブレを示す前記第1の画像を生成せず、
前記メモリは、前記露光前の期間に生成された前記第1の画像を、前記露光期間まで記憶し、
前記動き検出部は、前記露光期間における、前記ユーザの前記手ブレにより生じる、記憶される前記第1の画像が生成されてからの、当該撮影装置の前記動きを検出し、
前記画像生成部は、記憶された前記第1の画像に対して、検出された前記動きによる変化が加えられた第2の前記画像を生成し、
前記表示部は、
前記露光前の期間に、前記スルー画像として、生成された第1の前記画像を表示することにより、前記露光前の期間における前記手ブレを表示すると共に、
前記露光期間にも、生成された、前記変化が加えられた第2の前記画像を表示することにより、当該露光期間における前記手ブレを表示する請求項1記載の撮影装置。 - 前記表示部は、前記露光期間に、第2の前記画像を表示することにより、当該露光期間にも、擬似的に、スルー画像を表示する請求項9記載の撮影装置。
- 記憶された第1の前記画像に加えられる前記変化は、検出された前記動きから、機械的な手ブレ補正により補正される部分が差し引かれた後における動きでの変化である請求項9又は10記載の撮影装置。
- 撮影光学系と、
前記撮影光学系を介して入射した光を受けて、受けた光を、当該光により表される画像を示す画像データに変換する撮像素子と、
前記撮像素子から出力した、変換された前記画像データを記憶するメモリと、
画像を表示する表示部とを備える撮影装置で実行される表示方法であって、
当該撮影装置が備える、露光期間における、当該撮影装置の動きを示す動き情報を検出する動き検出部で検出した前記動き情報により示される、前記露光期間における、当該撮影装置の前記動きを表示する画像を生成する画像生成ステップと、
表示される前記画像として、生成した前記画像を前記表示部に表示させる表示制御ステップとを含む表示方法。 - 撮影光学系と、
前記撮影光学系を介して入射した光を受けて、受けた光を、当該光により表される画像を示す画像データに変換する撮像素子と、
前記撮像素子から出力した、変換された前記画像データを記憶するメモリと、
画像を表示する表示部とを備える撮影装置におけるコンピュータに、
当該撮影装置が備える、露光期間における、当該撮影装置の動きを示す動き情報を検出する動き検出部で検出した前記動き情報により示される、前記露光期間における、当該撮影装置の前記動きを表示する画像を生成する画像生成ステップと、
表示される前記画像として、生成した前記画像を前記表示部に表示させる表示制御ステップとを実行させるためのコンピュータプログラム。 - 撮影光学系と、
前記撮影光学系を介して入射した光を受けて、受けた光を、当該光により表される画像を示す画像データに変換する撮像素子と、
前記撮像素子から出力した、変換された前記画像データを記憶するメモリと、
画像を表示する表示部とを備える撮影装置に設けられる集積回路であって、
当該撮影装置が備える、露光期間における、当該撮影装置の動きを示す動き情報を検出する動き検出部で検出した前記動き情報により示される、前記露光期間における、当該撮影装置の前記動きを表示する画像を生成する画像生成部と、
表示される前記画像として、生成した前記画像を前記表示部に表示させる表示制御部とを備えた集積回路。
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US13/132,656 US8823812B2 (en) | 2009-10-07 | 2010-09-22 | Image capturing apparatus and method for displaying a subject of image capturing and indicating motion of the image capturing apparatus during the image capturing |
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US8823812B2 (en) | 2014-09-02 |
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