JP5034890B2 - Imaging apparatus and movement control program - Google Patents

Description

  The present invention relates to an imaging apparatus capable of correcting camera shake and a movement control program.

  Currently, some imaging devices such as digital cameras have a so-called camera shake correction function. As an operation method of the camera shake correction function, for example, there are a method of moving an image pickup device such as a CCD (Charge Coupled Device) according to the amount of blur and a method of moving an optical lens according to the amount of blur. In these systems, the movable range of the image sensor or the optical lens is finite.

Therefore, in Patent Document 1, in order to effectively perform camera shake correction, an operation of moving an image sensor or an optical lens to the center of a movable range when it is detected that a photographer holds the apparatus (hereinafter referred to as centering). An image pickup apparatus for picking up a still image has been proposed.
JP 2004-241922 A

  However, when the technique disclosed in Patent Document 1 is applied to an imaging apparatus that captures a moving image, centering is not performed during shooting, and thus a camera shake when the imaging element or the optical lens moves to the boundary of the movable range. Correction is impossible.

  Even if the centering is performed when the image sensor or the optical lens moves to the boundary of the movable range, the image quality of the moving image deteriorates due to the centering.

  The present invention has been made in view of the above problems, and an object thereof is to provide an imaging apparatus and a movement control program that can appropriately perform centering related to camera shake correction in moving image shooting.

In order to achieve the above object, the invention according to claim 1 acquires the moving direction of the device that causes blurring of the image output from the image sensor, and controls to move the lens based on the moving direction. In the imaging apparatus, the imaging device sequentially outputs the images, and encoding processing means for encoding the sequentially output images using an inter-frame prediction method; and an image to be captured by the imaging device is the encoding A determination unit that determines whether or not the image is to be encoded as a prediction frame by the processing unit; and if the determination unit determines that the image is a prediction frame target, the lens is located near the center of a predetermined movable range And a movement control means for controlling the movement so as to be positioned at the position.

In order to achieve the above object, the invention according to claim 2 acquires the moving direction of the image pickup apparatus that causes blurring of the image output from the image pickup device, and moves the lens based on the moving direction. the computer to which the imaging apparatus has the function to control the imaging device outputs the image sequentially, encoding means for encoding processed by the sequential output image interframe prediction scheme, pre SL imaging device Judgment means for judging whether or not an image to be captured is an image to be coded as a predicted frame by the coding processing means, and when the judgment means judges that the target is a predicted frame, the lens is predetermined Further, it is characterized by functioning as movement control means for controlling movement so as to be positioned near the center of the movable range.

  According to the present invention, it is possible to appropriately perform centering related to camera shake correction when shooting a moving image.

Hereinafter, an imaging device according to an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, the photographing apparatus is described as a digital camera.
(Embodiment 1)
FIG. 1 shows the configuration of the digital camera 1 according to the first embodiment.
The digital camera 1 captures a still image in the still image capturing mode and captures a moving image in the moving image capturing mode. The digital camera 1 also has a camera shake correction function using a CCD shift method.
A digital camera 1 according to the first embodiment includes a CCD (Charge Coupled Device) 11, a timing generator (denoted as “TG” in the figure) 12, an optical system drive circuit 13, a lens 14, and a lens drive circuit. 15, unit circuit 16, color process circuit 17, image processing unit 18, CCD base 19, CCD shift driver 20, camera shake correction control unit 21, posture sensor 22, control unit 23, DRAM (Dynamic Random Access Memory) 24 and ROM (Read
Only Memory) 25, flash memory 26, input unit 27, and display unit 28.

  A CCD (Charge Coupled Device) 11 is an imaging device that receives light within a light receiving (photographing) range and acquires a captured image within the light receiving range. The CCD 11 converts the received light signal into an electrical signal by photoelectric conversion, and outputs an RGB signal image.

  The digital camera 1 can acquire a high resolution image and a low resolution image. The high resolution image is an image obtained using signals output from all the pixels of the CCD 11.

  The low resolution image is an image obtained by thinning out the output signals of all the pixels of the CCD 11. In the case of a low resolution image, the image resolution is, for example, about 1024 × 768 dots (XGA; eXtended Graphics Array), and the image can be read out at a speed of 30 fps (frame / second) although the resolution is low. The low resolution image is periodically displayed on the display unit 28 as a through image.

  A timing generator (denoted as “TG” in the figure) 12 generates a timing signal for driving the CCD 11 and capturing a video signal. The timing generator 12 is supplied with a shutter speed signal indicating the shutter speed from the controller 22, and generates a timing signal based on the supplied shutter speed. Then, the timing generator 12 supplies the generated timing signal to the optical system driving circuit 13.

  The optical system drive circuit 13 drives the CCD 11. The optical system driving circuit 13 generates a frame shift pulse signal and a line transfer pulse signal according to the timing signal supplied from the timing generator 12, and drives the CCD 11 using the generated frame shift pulse signal and line transfer pulse signal.

  The lens 14 is used to form an image of light from a subject to be photographed on the imaging surface of the CCD 11 and includes a photographing lens, a focus lens (not shown), and a zoom lens (not shown). The The lens 14 is provided on the front surface of the digital camera 1.

  The lens driving circuit 15 drives the lens 14. The lens drive circuit 15 is supplied with a lens control signal for controlling the position of the lens 14 from the control unit 23 so as to be in focus, and drives the lens 14 to a position where the focus is achieved based on the supplied lens control signal. To do.

  The unit circuit 16 includes a correlated double sampling circuit (CDS circuit) that reduces drive noise of the CCD 11 included in the analog RGB signal output from the CCD 11, and an automatic gain control circuit (AGC) that adjusts the gain of the signal after noise reduction. ) And an A / D converter that converts the signal after gain adjustment into a digital signal. The unit circuit converts the analog RGB signal output from the CCD 11 into a digital RGB signal and supplies it to the color process circuit 17.

  The color process circuit 17 performs color process processing including pixel interpolation processing and correction processing on the digital RGB signal output from the unit circuit 16.

  The color process circuit 17 performs white balance correction and γ correction on the digital RGB signal output from the unit circuit 16 as color process processing, and brightness (Y) is obtained from the RGB signal subjected to such correction. A signal and a color difference (UV) signal are generated.

  The image processing unit 18 is for performing an encoding process on the image supplied from the color process circuit 17 or the image captured in the DRAM 24.

  In the still image shooting mode, the image processing unit 18 encodes the still image data supplied from the color process circuit 17 or the still image data captured in the DRAM 24 by a JPEG (Joint Photographic Experts Group) method (data). Compressed) and recorded and stored in the flash memory 26.

  In the moving image shooting mode, the image processing unit 18 encodes a series of moving image data supplied from the color process circuit 17 or a series of moving image data captured in the DRAM 24 by the MPEG (Moving Picture Experts Group) method. Processed (data compression) and recorded and stored in the flash memory 26. The moving image data is recorded and saved at a rate of 30 fps at a ratio of I frame (Intra-Coded Frame): P frame (Predicted Frame): B frame (Bi-directional Predicted Frame) = 1: 5: 24.

  The CCD base 19 moves the CCD 11 vertically and horizontally perpendicular to the optical axis of the lens 14 within the operable range based on the control of the camera shake correction control unit 21 when the camera shake correction function is performed. .

  For example, as shown in FIGS. 2A and 2B, the CCD base 19 includes a plate 19-1, a magnet 19-2, a spacer stud 19-3, a CCD mounting plate 19-4, and a coil 19-. 5-19-8.

  Coils 19-5 to 19-8 are disposed in the periphery of the CCD mounting plate 19-4 to which the CCD 11 is mounted at the center. A CCD mounting plate 19-4 is held by a steel plate 19-1 on which a plurality of sets of magnets 19-2 are disposed and a spacer stud 19-3, and four linear motors are formed around the CCD 11. . By energizing any one of the coils 19-5 to 19-8, the CCD 11 is driven to shift in a desired direction. At that time, the CCD 11 performs only the translation operation in the X direction or the Y direction within the operable range X1. The X axis and the Y axis are perpendicular to each other, and the XY plane is disposed perpendicular to the optical axis (hereinafter, Z axis) of the lens 14 (optical system) of the digital camera 1.

  The CCD shift driver 20 supplies power based on a control signal from the camera shake correction control unit 21 to the linear motor of the CCD base 19. Also, the CCD shift driver 20 supplies information such as the driving status of the linear motor of the CCD base 19 to the camera shake correction control unit 21.

  The camera shake correction control unit 21 calculates a movement amount that the CCD 11 should move based on the angular velocity (hereinafter referred to as a shake amount) of the digital camera 1 in each of the X direction and the Y direction supplied from the posture sensor 22. Further, the moving direction in which the CCD 11 is to be moved is determined based on the direction of the angular velocity supplied from the attitude sensor 22 (hereinafter referred to as the blur direction). Then, the camera shake correction control unit 21 controls the CCD shift driver 20 to perform the camera shake correction by moving the CCD 11 in the determined movement direction to be moved by the calculated movement amount. The camera shake correction control unit 21 performs centering to move the CCD 11 to the center of the operable range X1 when a predetermined condition is met.

  The posture sensor 22 includes, for example, two acceleration sensors that detect the angular velocity of the digital camera 1 in each of the X direction and the Y direction as shown in FIG. 3, and the angular velocity of the digital camera 1 in each of the X direction and the Y direction. Then, a shake detection signal including the detected angular velocity data and direction is supplied to the camera shake correction control unit 21.

  The control unit 23 is composed of, for example, a CPU (Central Processing Unit) and the like, and controls the entire digital camera 1. The control unit 23 reads program data of each process from the ROM based on the operation information supplied from the input unit 27, and executes each process according to this program. Further, in the moving image shooting mode, the control unit 23 causes the CCD 11 to acquire captured images that are respectively an MPEG I frame (Intra-Coded Frame), P frame (Predicted Frame), and B frame (Bi-directional Predicted Frame). The timing to perform is calculated. Then, the control unit 23 sequentially supplies the calculated timing information to the camera shake correction control unit 21.

  A DRAM (Dynamic Random Access Memory) 24 is used as a buffer memory for temporarily storing image data sent from the control unit 23 and as a working memory for the control unit 23.

  The ROM 25 stores an operation program for the control unit 23.

  A flash memory 26 is a non-volatile memory, and stores image data encoded by the JPEG method or the MPEG method.

  The input unit 27 includes a power key, a shutter key, a mode setting key used for setting various operation modes, a menu key, a cross key, a set key, and the like. Signals associated with these key operations are sent to the control unit 23. Supply. Further, the input unit 27 supplies a signal to the control unit 23 when the user selects one of the still image shooting mode and the moving image shooting mode by operating each key, and the control unit 23 is selected. The shooting process in the selected mode is performed.

  The display unit 28 includes a video encoder, a VRAM controller, a VRAM, a liquid crystal monitor, and a drive circuit thereof. The display unit 28 generates a video signal based on the digital signal supplied from the control unit 22 by the video encoder and displays a display image based on the generated data. That is, a through image of the subject imaged by the CCD 11 and menu data are displayed on the screen.

  Hereinafter, the operation of the digital camera 1 having the above configuration will be described.

  First, the relationship between the position of the CCD 11 within the operable range X1 and the direction in which the CCD 11 can move and the determination of the camera shake correction control unit 21 will be described with reference to FIG.

  For example, as shown in FIG. 4A, when the CCD 11 is not in contact with the boundary of the operable range X1, the CCD 11 can move in any of the vertical and horizontal directions. Therefore, the camera shake correction control unit 21 determines that camera shake correction is possible regardless of the direction of movement determined by the calculated movement amount.

  Further, as shown in FIG. 4B, when the CCD 11 is in contact with the right boundary of the operable range X1, the CCD 11 cannot move in the right direction and can move in the vertical direction and the left direction. It is. When the determined movement direction includes the right direction, the camera shake correction control unit 21 determines that camera shake correction is impossible.

  When the CCD 11 exists in the vicinity of the right boundary of the operable range X1, the calculated movement amount is further compared with the distance to the right boundary in the operable range X1 of the CCD 11, and the distance to the right boundary is calculated. The fact that the amount of movement is less than that is added as a condition for determining that camera shake correction is impossible.

  Further, as shown in FIG. 4C, when the CCD 11 is in contact with the right and lower boundaries of the operable range X1, the CCD 11 cannot move in the right direction and the lower direction. It can move in the upward and left directions. Therefore, the camera shake correction control unit 21 determines that the camera shake correction is impossible when the determined moving direction includes the right direction or the downward direction.

  If the CCD 11 exists in the vicinity of the right boundary and the lower boundary of the operable range X1, the movement amounts in the X direction and the Y direction included in the calculated movement amount and the right side of the CCD 11 in the operable range X1. The distance between the boundary and the lower boundary is compared, and the distance to the right boundary is less than the calculated movement amount in the X direction, or the distance to the lower boundary is the calculated movement amount in the Y direction. Not satisfying the condition is added as a condition for determining that camera shake correction is impossible.

  As shown in FIG. 4D, when the CCD 11 is in contact with the lower boundary of the operable range X1, the CCD 11 can move in the upward direction and the left-right direction. Therefore, the camera shake correction control unit 21 determines that the camera shake correction is not possible when the determined moving direction includes the downward direction.

  When the CCD 11 exists in the vicinity of the lower boundary of the operable range X1, the calculated movement amount is further compared with the distance to the lower boundary in the operable range X1 of the CCD 11, and the distance to the lower boundary is compared. Is added as a condition for determining that camera shake correction is impossible.

  Similarly, when the CCD 11 is in contact with the left and lower boundaries of the operable range X1, the CCD 11 cannot move leftward and downward, and can move upward and rightward. It is. Therefore, the camera shake correction control unit 21 determines that camera shake correction is impossible when the determined moving direction includes the left direction or the downward direction. When the CCD 11 is located in the vicinity of the left boundary and the lower boundary of the operable range X1, the movement amount in each direction included in the calculated movement amount and the distance to each boundary in the operable range X1 are calculated. Judge by comparison.

  Similarly, when the CCD 11 is in contact with the left boundary of the operable range X1, the CCD 11 cannot move leftward and can move vertically and rightward. Therefore, the camera shake correction control unit 21 determines that the camera shake correction is not possible when the determined moving direction includes the left direction. Further, when the CCD 11 is positioned near the left boundary of the operable range X1, it is further determined by comparing the calculated amount of movement with the distance to the left boundary in the operable range X1.

  Similarly, when the CCD 11 is in contact with the left boundary and the upper boundary of the operable range X1, the CCD 11 cannot move leftward and upward, and can move downward and rightward. is there. Therefore, the camera shake correction control unit 21 determines that camera shake correction is impossible when the determined moving direction includes the left direction or the upward direction. When the CCD 11 is located in the vicinity of the left boundary and the upper boundary of the operable range X1, the movement amount in each direction included in the calculated movement amount is compared with the distance to each boundary in the operable range X1. To judge.

  Similarly, when the CCD 11 is in contact with the upper boundary of the operable range X1, the CCD 11 cannot move upward, and can move downward and to the left and right. Therefore, the camera shake correction control unit 21 determines that camera shake correction is not possible when the determined moving direction includes the upward direction. Further, when the CCD 11 is located in the vicinity of the upper boundary of the operable range X1, a further determination is made by comparing the calculated amount of movement with the distance to the upper boundary in the operable range X1.

  Similarly, when the CCD 11 is in contact with the right boundary and the upper boundary of the operable range X1, the CCD 11 cannot move in the right direction and the upward direction, and can move in the downward direction and the left direction. is there. Therefore, the camera shake correction control unit 21 determines that camera shake correction is impossible when the determined moving direction includes the right direction or the upward direction. When the CCD 11 is located in the vicinity of the right boundary and the upper boundary of the operable range X1, the movement amount in each direction included in the calculated movement amount is compared with the distance to each boundary in the operable range X1. To judge.

  Furthermore, when it is determined that the camera shake correction control unit 21 cannot perform the camera shake correction as described above in the moving image shooting mode, the camera shake correction control unit 21 further satisfies a predetermined condition. As a result, a centering process for moving the CCD 11 to the center of the operable range X1 is performed. More specifically, when the camera shake correction control unit 21 determines in the moving image shooting mode that the camera shake correction is impossible by the above determination, the centering process is performed at the timing when the CCD 11 acquires the captured image that becomes the B frame. I do. The reason for this is that, as shown in FIG. 5, the B frame is not used for predicting other frames. Therefore, even if the centering process is performed at the timing when the CCD 11 acquires the captured image that becomes the B frame, the image quality of the moving image It is because there is little influence with respect to.

  In addition, the camera shake correction control unit 21 captures an image that becomes a B frame immediately before the I frame so that camera shake correction can be performed in an I frame that is frequently used to predict other frames. Centering processing is also performed at the timing when the image is acquired by the CCD 11. In this embodiment, since it is 30 fps, the camera shake correction control unit at the timing (when f = 30 shown in FIG. 5) when the CCD 11 acquires a captured image in which the number of frames counted from the I frame is 30 frames. 21 performs a centering process. However, the case where f = 1 is the timing at which the CCD 11 acquires a captured image that becomes an I frame.

  Next, the camera shake correction process performed by the camera shake correction control unit 21 of the digital camera 1 will be described in detail with reference to the flowchart of FIG. The flowchart shown in FIG. 6 is an example of a procedure for performing the camera shake correction and centering processes described above.

When the camera shake correction start request in the moving image shooting mode is received from the control unit 23, the camera shake correction control unit 21 starts the camera shake correction process by an interrupt process.
First, based on the information acquired from the control unit 23, the camera shake correction control unit 21 determines whether it is the timing at which the CCD 11 acquires a captured image in which the number of frames counted from the I frame is 30 (f = 30) (step S101).

  If it is determined that f = 30 (S101; YES), the camera shake correction control unit 21 performs centering processing for controlling the CCD shift driver 20 to move the CCD 11 to the center of the operable range X1 (step S109). The process returns to step S101.

  If it is determined that f is not 30 (S101; NO), the camera shake correction control unit 21 acquires information on the position of the CCD 11 in the operable range X1 from the CCD shift driver 20 (step S102).

  Next, the camera shake correction control unit 21 acquires the shake amount and the shake direction of the digital camera 1 from the posture sensor 22 (step S103).

  The camera shake correction control unit 21 calculates the movement amount of the CCD 11 based on the shake amount acquired in step S103 (step S104).

  The camera shake correction control unit 21 derives the direction in which the CCD 11 can move based on the position information of the CCD 11 in the operable range X1 acquired in step S102. Subsequently, the camera shake correction control unit 21 determines whether or not the movement amount calculated in step S104 is movable in the previously derived movable direction (step S105).

  If it is determined that the movement is possible (S105; YES), the camera shake correction control unit 21 performs the camera shake correction by moving the CCD 11 according to the movement amount (step S106), and returns the process to step S101.

  On the other hand, if it is determined that the movement is not possible (S105; NO), the camera shake correction control unit 21 is based on the information acquired from the control unit 23 and is the timing at which the CCD 11 acquires the captured image that becomes the B frame. Is determined (step S107).

  If it is determined that it is time for the CCD 11 to acquire a captured image that becomes a B frame (S107; YES), the camera shake correction control unit 21 performs centering processing (step S109), and returns the processing to step S101.

  If it is determined that the timing at which the CCD 11 does not acquire the captured image that becomes the B frame (S107; NO), the camera shake correction control unit 21 waits until that timing (step S108), and performs the centering process when that timing comes. (Step S109), and the process returns to step S101.

  In this way, according to the camera shake correction process, it is possible to perform centering without reducing the image quality of a moving image while performing camera shake correction.

  As described above, the digital camera 1 according to the first embodiment can capture a moving image with good image quality by performing centering only at the timing of capturing an image that becomes a B frame after the encoding process.

(Embodiment 2)
The CCD base 19 of the digital camera 1 according to the first embodiment may be a CCD base 19 ′ using a piezoelectric element. As shown in FIG. 7, the CCD base 19 'includes an X actuator 19a, a Y actuator 19b, an X base plate 19c, a Y base plate 19d, and a base plate 19e.

  An X actuator 19a that functions as a correction driving means for driving the CCD 11 in the horizontal direction is mounted on the base plate 19e. The X actuator 19a is a SIDM (Smooth Impact Drive Mechanism) that uses expansion and contraction of a piezoelectric element, and drives an X base plate 19c attached to the X actuator 19a in the lateral direction.

  On the X base plate 19c, a Y actuator 19b that functions as a correction driving means for driving the CCD 11 in the vertical direction is mounted. Similarly to the X actuator 19a, the Y actuator 19b uses SIDM using the expansion and contraction of a piezoelectric element, and drives the Y base plate 19d attached to the Y actuator 19b in the vertical direction. The CCD 11 is mounted on the Y base plate 19d.

  The CCD 11 is driven within the operable range X2 by the X actuator 19a and the Y actuator 19b.

(Embodiment 3)
In the first and second embodiments, the CCD shift method is applied. However, in the third embodiment, a lens shift method in which camera shake correction is performed using a correction lens may be applied.

As shown in FIG. 8, the digital camera 2 according to the third embodiment includes a CCD (Charge Coupled Device) 11, a timing generator (denoted as “TG” in the figure) 12, an optical system driving circuit 13, Lens 14, lens driving circuit 15, unit circuit 16, color process circuit 17, image processing unit 18, camera shake correction control unit 21, attitude sensor 22, control unit 23, DRAM (Dynamic Random Access) Memory) 24 and ROM (Read
Only Memory) 25, a flash memory 26, an input unit 27, a display unit 28, a correction lens 29, a correction lens base 30, and a correction lens shift driver 31.

  The CCD (Charge Coupled Device) 11 can be driven perpendicular to the optical axis direction by the CCD base 19 in the first and second embodiments, but is fixedly used in the third embodiment. The

  The correction lens 29 moves in the vertical and horizontal directions perpendicular to the optical axis of the lens 14 in accordance with the shake of the digital camera 2 and performs camera shake correction.

  The correction lens base 30 is vertically and horizontally perpendicular to the optical axis of the lens 14 within the operable range based on the control of the camera shake correction control unit 21 when the camera shake correction function is performed. Move to.

  The correction lens shift driver 31 supplies power to the correction lens base 30 based on a control signal from the camera shake correction control unit 21. The correction lens shift driver 31 supplies information such as the driving status of the correction lens base 30 to the camera shake correction control unit 21.

  The camera shake correction process performed by the camera shake correction control unit 21 in the third embodiment is the same as in the first and second embodiments. However, in order to perform camera shake correction, the correction lens 29 is driven instead of the CCD 11. In the centering, the correction lens 29 is moved to the center of the operable range.

  As described above, according to the third embodiment, even when the lens shift method is used, it is possible to capture a moving image with high image quality by performing centering only at the timing of capturing an image that becomes a B frame after encoding processing.

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation and application are possible.

  In the above-described embodiment, centering is performed at the timing of capturing an image that becomes an MPEG B frame, but the frequency used to predict other frames by applying another moving image encoding method is used. The centering may be performed at the timing of capturing an image with a few or unused frames. In addition, centering may be performed at the timing of capturing an image that becomes an MPEG P frame.

  In the first and second embodiments, the CCD base 19 may use a DC motor as means for driving the CCD 11.

  In the third embodiment, as a means for the correction lens base 30 to drive the correction lens 29, a swing coil, a DC motor, or a piezoelectric element may be used.

  In addition, specific details of the configuration can be changed as appropriate.

It is a block diagram of the digital camera which concerns on Embodiment 1 of this invention. It is a block diagram of the CCD base of Embodiment 1 of FIG. It is a perspective view which shows the direction of the angular velocity which the attitude | position sensor of FIG. 1 detects. It is a figure which shows the relationship between CCD and an operable range. It is a figure for demonstrating the timing which images the image used as I, P, and B frame in MPEG system, and the timing of centering. It is a flowchart for demonstrating camera shake correction processing. It is a block diagram of the CCD base of Embodiment 2 of FIG. It is a block diagram of the digital camera which concerns on Embodiment 3 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Digital camera, 2 ... Digital camera, 11 ... CCD, 12 ... Timing generator, 13 ... Optical system drive circuit, 14 ... Lens, 15 ... Lens drive circuit , 16 ... Unit circuit, 17 ... Color process circuit, 18 ... Image processing unit, 19 ... CCD base, 19-1 ... Plate, 19-2 ... Magnet, 19-3 ... Spacer stud, 19-4 ... CCD mounting plate, 19-5 to 19-8 ... Coil, 19 '... CCD base, 19a ... X actuator, 19b ... Y actuator, 19c ... X base plate, 19d ... Y base plate, 19e ... base plate, 20 ... CCD shift driver, 21 ... camera shake correction control unit, 22 ... posture sensor, 23. ..Control unit, 24 ... D AM, 25 ... ROM, 26 ... flash memory, 27 ... input unit, 28 ... display unit, 29 ... correction lens, 30 ... correction lens base, 31 ... correction lens Shift driver, X1 ... operable range, X2 ... operable range

Claims (2)

In an imaging apparatus that acquires a movement direction of the apparatus that causes blurring of an image output from an imaging element and controls the lens to move based on the movement direction.
The image sensor sequentially outputs the images, and encoding processing means for encoding the sequentially output images by an inter-frame prediction method;
Determining means for determining whether an image to be imaged by the image sensor is an image to be encoded as a predicted frame by the encoding processing means ;
When the determination means determines that the object is a predicted frame object, the image pickup apparatus includes: a movement control means for controlling the lens to move so as to be positioned near the center of a predetermined movable range. apparatus. A computer included in the imaging device that functions to acquire a moving direction of the imaging device that causes blurring of an image output from the imaging device and to control to move the lens based on the moving direction,
The imaging device sequentially outputs the images, and encoding processing means for encoding the sequentially output images using an inter-frame prediction method;
Determining means for determining whether an image to be imaged by the image sensor is an image to be encoded as a predicted frame by the encoding processing means;
If the determination means determines that the target frame is a predicted frame, the lens functions as movement control means for controlling the lens to move so as to be positioned near the center of a predetermined movable range. A movement control program.

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