JP2021092696A - Imaging apparatus and control method thereof - Google Patents

Abstract

To increase a vibration-proof performance by drive of an image pickup device by allowing horizontal precision of the image pickup device to be ensured easily.SOLUTION: An imaging apparatus 101 includes: vibration-proof means 207, 208, 214 for performing vibration-proof operation capable of rotating an image pickup device 209, or image data generated by using output from the image pickup device so as to reduce image deflection according to rotary deflection of the imaging apparatus; and reference position setting means 206 for setting a reference position in a rotary direction of an image pickup device or image data in vibration-proof operation. The reference position setting means sets one of a first reference position in which an inclination of an image pickup device in a rotary direction matches an inclination of an imaging apparatus, and a second reference position as a center position of a movable range in a rotary direction of the image pickup device according to at least one of a set state, a deflection state, and an attitude of the imaging apparatus.SELECTED DRAWING: Figure 1

Description

The present invention relates to an image pickup device having an anti-vibration function (hereinafter referred to as a camera).

In the camera, the image sensor is shift-driven in the pitch (vertical) direction and the yaw (horizontal) direction, and is rotationally driven in the roll (rotation) direction to reduce (correct) image shake caused by camera shake such as camera shake. Some have a function. Patent Document 1 discloses a configuration in which an image pickup device capable of rotating an image pickup device in a roll direction changes a correction range according to a state of vibration of the image pickup device.

Japanese Unexamined Patent Publication No. 2014-56057

If the inclination of the image pickup device (bottom surface) and the inclination of the image pickup device (horizontal pixel line) match, a horizontal image can be obtained by taking an image with the image pickup device horizontal. If the tilts of the image pickup device and the image pickup device do not match, the tilts of the image pickup device can be matched by rotating the image pickup device in the roll direction by a relative angle with the image pickup device. However, by rotating the image sensor in one of the roll directions in order to match the inclinations, the rotatable amount (vibration isolation amount) of the image sensor for vibration isolation in that one direction is reduced.

The present invention provides an image pickup apparatus capable of easily ensuring the horizontal accuracy of the image pickup device and enhancing the vibration isolation performance by driving the image pickup device.

The image pickup apparatus as one aspect of the present invention is vibration-proof that rotates the image pickup device or the image data generated by using the output from the image pickup device so as to reduce the image shakeout according to the rotation shake of the image pickup device. It has an anti-vibration means for performing the operation and a reference position setting means for setting a reference position in the rotation direction of the image sensor or the image data in the anti-vibration operation. The reference position setting means includes a first reference position in which the inclination of the image sensor in the rotation direction matches the inclination of the image sensor according to at least one of the set state, the runout state, and the posture of the image sensor, and the image sensor. It is characterized in that any of the second reference positions, which is the center position of the movable range in the rotation direction, is set.

Further, the control method of the image pickup device as one aspect of the present invention is to obtain image data generated by using the image pickup device or the output from the image pickup device so as to reduce the image shakeout according to the rotational shake of the image pickup device. It has a step of performing a vibration-proof operation to rotate and a step of setting a reference position in the rotation direction of the image sensor or image data in the vibration-proof operation. In the step of setting the reference position, the first reference position in which the tilt of the image sensor in the rotation direction matches the tilt of the image sensor and the image pickup are performed according to at least one of the setting state, the runout state, and the posture of the image sensor. It is characterized in that any of the second reference positions, which is the center position of the movable range in the rotation direction of the element, is set. A computer program that causes the computer of the image pickup apparatus to execute a process according to the above control method also constitutes another aspect of the present invention.

According to the present invention, it is possible to realize an image pickup apparatus capable of easily ensuring the horizontal accuracy of the image pickup device and enhancing the vibration isolation performance by driving the image pickup device.

The figure which shows the axial direction of the acceleration sensor and the angular velocity sensor, and the rotation direction of an image pickup apparatus in each Example of this invention. The block diagram which shows the structure of the image pickup apparatus in each Example. The figure which shows the 1st reference position of the image sensor in each Example. The figure which shows the 2nd reference position of the image sensor in each Example. The flowchart which shows the reference position switching process in Example 1. FIG. The flowchart which shows the reference position determination processing in Example 1. FIG. The flowchart which shows the reference position determination process in Example 2. The figure which shows the camera posture in Example 2. FIG. The figure which shows the relationship between the horizontal index and the reference position of an image sensor in Example 3. FIG. The flowchart which shows the reference position switching process in Example 3.

Hereinafter, examples of the present invention will be described with reference to the drawings. First, the configuration of the imaging device (hereinafter referred to as a camera) 101 common to each embodiment of the present invention will be described with reference to FIG. Further, FIG. 1A shows an axial direction and a rotation direction in which camera shake can be detected by the angular velocity sensor 201 and the acceleration sensor 202 mounted on the camera 101.

The image sensor 209 images (converts a light source) a subject image formed by an image pickup optical system (not shown). The image pickup signal, which is an output signal from the image pickup device 209, is input to an image processing unit (not shown) in the system control unit 213. The image processing unit generates captured image data from the input imaging signal.

The angular velocity sensor 201 detects the angular velocity in the roll direction, which is the rotation direction about the optical axis 102, and outputs an angular velocity signal indicating the angular velocity. The image sensor drive unit 208 mounted on the camera 101 rotatably holds the image sensor 209 in the roll direction (indicated by the arrow 103) around the optical axis, and an image due to camera shake (rotational runout) in the roll direction. A roll vibration isolation operation is performed in which the image sensor 209 is rotated so as to reduce (correct) the runout. The vibration isolation means is configured by the image sensor driving unit 208, the rotation control unit 207 described later, and the roll correction amount calculation unit 214.

Further, the acceleration sensor 202 detects acceleration in the three axial directions of the X-axis direction indicated by the arrow 104x, the Y-axis direction indicated by the arrow 104y, and the Z-axis direction indicated by the arrow 104z, and outputs an acceleration signal indicating the acceleration. .. The image sensor driving unit 208 holds the image sensor 209 so as to be movable (shiftable) in the Y-axis direction and the X-axis direction, and takes an image so as to correct the image shake due to the camera shake in the Y-axis direction and the X-axis direction, respectively. A pitch / yaw anti-vibration operation that shifts the element 209 is performed.

The system control unit 213 includes arithmetic processing units such as a CPU and an MPU. The system control unit 213 controls the entire camera 101 by sending control commands to each unit in response to a user operation by the operation unit 211. Further, the system control unit 213 executes an anti-vibration control program as a computer program stored in the memory 212 to control each of the above-mentioned anti-vibration operations.

The angular velocity signal from the angular velocity sensor 201 is input to the system control unit 213. In the system control unit 213, the roll angle runout detection unit 203 detects the roll angle runout as the camera shake in the roll direction from the input angular velocity signal. The roll correction amount calculation unit 214 calculates the amount of rotation (hereinafter, referred to as roll correction amount) of the image sensor 209 in the roll direction, which is necessary to cancel (reduce) the image shake due to the roll angle shake.

Accelerometer signals in the three axial directions from the acceleration sensor 202 are also input to the system control unit 213. In the system control unit 213, the tilt angle calculation unit 204 calculates the tilt angle 105 in the horizontal direction shown in FIG. 1 (B) and the tilt angle 106 in the tilt direction shown in FIG. 1 (C) from the input acceleration signal. To do. The posture determination unit (posture detection means) 205 determines (detects) the attitude of the camera 101 from the acceleration in the three axial directions.

The operation unit 211 has various operation members operated by the user, and outputs an operation signal corresponding to the user operation of the operation member. The various operation members include a release switch for instructing the start of imaging, a touch panel and an operation switch for setting various imaging conditions (aperture value, shutter speed, exposure compensation value, etc.) and an imaging mode. The operation signal from the operation unit 211 is sent to the system control unit 213.

In the system control unit 213, the reference position determination unit (reference position setting means) 206 determines the roll angle runout angle (hereinafter referred to as roll runout angle) of the camera 101 calculated by the roll angle runout detection unit 203 and the attitude determination. The reference position of the image sensor 209 is determined according to the posture of the camera 101 determined by the unit 205 and the setting state of the camera 101 such as the imaging conditions and the imaging mode set through the operation unit 211. The reference position is a position that serves as a reference for the vibration isolation operation, and is the position of the image sensor 209 when the camera 101 is stationary. Further, when the camera 101 vibrates with a constant amplitude, the position of the image sensor 209 is observed for a predetermined period, and the average value thereof is taken to match the reference position. In the anti-vibration control in the roll direction, the image sensor 209 is rotated from this reference position by the amount of roll correction.

The rotation control unit 207 instructs the image sensor driving unit 208 to control the switching of the reference position according to the determination result of the reference position determination unit 206. The image sensor driving unit 208 switches the reference position of the image sensor 209 in response to an instruction from the rotation control unit 207. The method for determining the reference position of the image sensor 209 performed by the reference position determination unit 206 will be described later.

Further, when the rotation control unit 207 controls the roll vibration isolation operation, the rotation control unit 207 controls the image sensor drive unit 208 based on the roll correction amount calculated by the roll correction amount calculation unit 214 to reduce the roll angle deviation. The image sensor 209 is rotationally driven to a rotational position that corrects the corresponding image shake.

The display unit (display means) 210 includes a display element such as an LCD panel, and displays image data generated by imaging before recording imaging as an electronic viewfinder (live view) image, or is generated by recording imaging. The still image data is displayed for confirmation by the user, and the imaging conditions and imaging modes set through the operation unit 211 are displayed. Further, the display unit 210 has a function of an electronic level that displays tilt information of the camera 101 with respect to the horizontal.

The camera 101 of the first embodiment will be described. In this embodiment, the reference position of the image sensor 209 is switched according to the setting state of the camera 101 and the runout state (large runout state, small runout state, and stationary state) of the camera 101. 3 and 4 show two reference positions of the image sensor 209.

FIG. 3 shows the positional relationship between the camera 101 and the image sensor 209 at the first reference position in the roll direction. The first reference position is a reference position in which the rotation position of the image sensor in the roll direction is corrected so that the inclination of the image sensor 209 is the same (within a predetermined range) with respect to the inclination of the camera 101 with respect to the horizontal direction.

The broken line 302 indicates the position of the image sensor 209 when the image sensor 209 is assembled to the camera 101. The image sensor 209 at the position indicated by the broken line 302 has an angle difference θ with respect to the camera 101. In order to match the tilt of the camera 101 (bottom surface) with the tilt of the image sensor 209 (horizontal pixel line), the position indicated by the solid line 303 as a result of tilting the image sensor 209 by θ with θ as the correction angle is shown. The first reference position 301 of the image sensor 209 is used. By locating the image sensor 209 at the first reference position 301, a horizontal image can be obtained when the camera 101 is horizontal.

The correction angle θ can be obtained from the tilt angle of the camera 101 with respect to the horizontal direction in the roll direction and the assembly angle of the image sensor 209. The tilt angle of the camera 101 in the roll direction is determined by the following equation (1) in the tilt angle calculation unit 204 from the acceleration signal (acceleration in the X-axis direction and acceleration in the Y-axis direction) output from the acceleration sensor 202. Calculated using.

Tilt angle [deg] = arctan (acceleration in the Y-axis direction / acceleration in the X-axis direction) x 180 / π (1)
The correction angle θ is obtained from the difference between the tilt angle in the roll direction obtained using the equation (1) and the assembly angle of the image sensor 209. The obtained correction angle θ is stored in the memory 212 as an adjustment value.

FIG. 4 shows the positional relationship between the camera 101 and the image sensor 209 at the second reference position in the roll direction. Since the state in which the image pickup element 209 is located at the first reference position 301 described above is a state in which the image pickup element 209 is rotated by the correction angle θ from the state in which the image pickup element 209 is assembled to the camera 101, the rotation angle range of the image pickup element 209 during the roll vibration isolation operation. Is reduced by an angle θ in either the clockwise direction or the counterclockwise direction. On the other hand, as shown in FIG. 4, when the roll runout angle is large as in the case of hand-held imaging by the user, high vibration isolation performance in the roll direction is required. Therefore, the rotation position of the image sensor 209 at which the roll anti-vibration operation is possible in the clockwise direction and the counterclockwise direction in the roll direction is the same as each other, in other words, the movable range of the image sensor 209 in the roll direction. Let the center position of be the second reference position 401.

Next, an example of the condition for switching the reference position of the image sensor 209 will be described. The user changes the setting state of the camera 101 by operating the operation unit 211 before imaging, for example, switching between the anti-vibration off setting state and the anti-vibration on setting state, or the normal anti-vibration setting state in the anti-vibration on setting state. And the vibration isolation priority setting state can be switched. The anti-vibration off setting state is a setting state in which it is possible to prevent an erroneous anti-vibration operation due to noise detected by the angular velocity sensor 201 when the camera 101 is supported by a tripod for imaging.

The anti-vibration priority setting state is a setting state in which the anti-vibration performance in the roll direction due to the rotational drive of the image sensor 209 is further enhanced in order to obtain an image image with less image vibration than the normal anti-vibration setting state. That is, the normal vibration isolation setting and the vibration isolation priority setting are a plurality of setting states in which the amount of image shake that can be corrected by the roll vibration isolation operation is different from each other. The anti-vibration priority setting state includes, for example, a handheld night view mode. The handheld night view mode is a mode suitable for capturing a dark scene such as a night view in handheld imaging. By setting the handheld night view mode, the shutter speed and ISO sensitivity suitable for night view imaging are automatically set, and by combining multiple captured images obtained by multiple imaging, an captured image with less image shake can be obtained. can get.

Next, an example of the condition for switching the reference position of the image sensor 209 will be described. The shake state of the camera 101 is determined by the following method. If the roll angle runout angle calculated by the roll angle runout detection unit 203 using the angular velocity signal from the angular velocity sensor 201 is greater than or equal to a predetermined value, the runout state is determined to be a large runout state, and if it is less than the predetermined value, the runout state is small. It is determined to be in a runout state. The threshold value is set up to a runout angle at which roll vibration isolation operation is possible while the image sensor 209 is set at the first reference position. Further, when the camera 101 is being used, if the vibration state of the vibration smaller than the preset amplitude continues for a predetermined time, the camera 101 is determined to be in the stationary state.

The flowchart of FIG. 5 shows a reference position control process (control method) performed by the system control unit 213 (reference position determination unit 206, rotation control unit 207, and image sensor drive unit 208). The system control unit (control means) 213 as a computer executes these processes according to the anti-vibration control program.

The reference position control process shown in FIG. 5 is performed during the image pickup standby in which the live view image is displayed on the display unit 210. In step 501 (hereinafter abbreviated as S) 501, the reference position determination unit 206 determines the reference position of the image sensor 209 according to the setting state of the camera 101 and the deflection state of the camera 101. The reference position determination process performed here will be described later.

In S502, the rotation control unit 207 is. It is determined whether or not the determination result in S501 is the first reference position. If so, the process proceeds to S503, and if not (the second reference position), the process proceeds to S504.

In S503, the rotation control unit 207 controls the image sensor driving unit 208 to rotate the image sensor 209 to the first reference position. By rotating the image sensor 209 to the first reference position, the tilts of the camera 101 and the image sensor 209 in the roll direction are in the same state. In this state, the user can obtain a horizontal captured image by holding the camera 101 horizontally.

On the other hand, in S504, the rotation control unit 207 controls the image sensor driving unit 208 to rotate the image sensor 209 to the second reference position. By rotating the image sensor 209 to the second reference position, the vibration isolation performance in the roll direction can be improved in the vibration isolation priority setting state.

When the reference position of the image sensor 209 is set in S503 or S504, the rotation control unit 207 proceeds to S520 and performs a vibration isolation operation for correcting the vibration in the roll direction. In S520, the rotation control unit 207 controls the image sensor drive unit 208 so that the image sensor 209 is rotationally driven from the set reference position by the roll correction amount calculated by the roll correction amount calculation unit 214. In this step, vibration isolation operations for vibration in the pitch direction, yaw direction, and shift direction, which are vibrations other than the roll direction, may be performed.

The flowchart of FIG. 6 shows the reference position determination process performed by the reference position determination unit 206 in S501. First, in S505, the reference position determination unit 206 determines whether or not the camera 101 is in a stationary state, proceeds to S508 if it is in a stationary state, and proceeds to S506 if it is not in a stationary state.

In S506, the reference position determination unit 206 determines whether the camera 101 is in a large runout state or a small runout state based on the roll runout angle calculated by the roll angle runout detection unit 203, and is in a small runout state. Proceeds to S507, and if it is in a large swing state, proceeds to S509. In this step, the shake state of the camera 101 may be determined in consideration of information such as the shutter speed at the time of imaging and the focal length of the lens.

In S507, the reference position determination unit 206 determines whether the setting state of the camera 101 (here, the vibration isolation setting state) is the vibration isolation on setting state and the vibration isolation priority setting state or the normal vibration isolation setting state. The reference position determination unit 206 proceeds to S508 when the vibration isolation setting state is normally set. Further, the reference position determination unit 206 proceeds to 509 when the setting state of the camera 101 is the vibration isolation priority setting state.

In S508, the reference position determination unit 206 determines the reference position of the image sensor 209 to the first reference position, and ends this process. In S509, the reference position determination unit 206 determines the reference position of the image sensor 209 to the second reference position, and ends this process.

According to this embodiment, it is possible to easily secure the horizontal accuracy of the image pickup device 209, and it is possible to improve the anti-vibration performance by rotationally driving the image pickup device 209 in the roll direction.

Next, Example 2 of the present invention will be described. The flowchart of FIG. 7 shows the reference position determination process performed by the posture determination unit 205 and the reference position determination unit 206 in S501 of FIG. 5 in the second embodiment. In this embodiment, the reference position of the image sensor 209 is switched depending on the posture of the camera 101 and whether or not the camera 101 is in a stationary state.

The posture of the camera 101 is determined based on the tilt angle 105 with respect to the horizontal direction in the roll direction of the camera 101 and the tilt angle 106 with respect to the horizontal direction in the tilt direction. The tilt angle in the roll direction is calculated using the equation (1) described in the first embodiment. The tilt angle 106 in the tilt direction is determined by using the following equation (2) from the acceleration signals (acceleration in the Y-axis direction and acceleration in the Z-axis direction) output from the acceleration sensor 202 by the tilt angle calculation unit 204. It is calculated.

Tilt angle [deg] = arctan (Z-axis acceleration / Y-axis acceleration) x 180 / π (2)
As shown in FIG. 8, the posture of the camera 101 includes a lateral position, a grip upper position, a grip lower position, a reverse position, a lens upper position, a lens lower position, and the like. The posture determination unit 205 determines the current posture of the camera 101 from the calculated tilt angle 105 in the current roll direction and the tilt angle 106 in the tilt direction. The threshold angle between the postures of the camera 101 can be set to any angle.

The posture of the camera 101 is determined in this way for the following reasons. For example, in the horizontal position, the upper position of the grip, and the lower position of the grip, it is assumed that the user stably holds the camera 101 and adjusts the composition while being aware of the horizontal position to perform imaging. In this situation, since the inclinations of the camera 101 and the image sensor 209 are the same, it becomes easy to secure the horizontal accuracy of the image sensor 209, and it is not necessary to improve the vibration isolation performance so much. On the other hand, in the reverse position, the upper position of the lens, and the lower position of the lens, it is assumed that the user holds the camera 101 in an unstable state to perform imaging. In such a situation, it is not necessary to secure the horizontal accuracy of the image sensor 209, but it is necessary to improve the vibration isolation performance.

In S510 of FIG. 7, the posture determination unit 205 determines whether or not the posture of the camera 101 is in the horizontal position, proceeds to S505 if it is in the horizontal position, and proceeds to S511 if it is not in the horizontal position.

In S511, the posture determination unit 205 determines whether or not the posture of the camera 101 is in the grip upper position, proceeds to S505 if it is in the grip upper position, and proceeds to S512 if it is not in the grip upper position.

In S512, the posture determination unit 205 determines whether or not the posture of the camera 101 is in the grip lower position, proceeds to S505 if it is in the grip lower position, and proceeds to S513 if it is not in the grip lower position.

In S513, the posture determination unit 205 determines whether or not the posture of the camera 101 is in the reverse position, and if it is in the reverse position, proceeds to S505, and if it is not in the reverse position, that is, the posture of the camera 101 is in the position on the lens or If it is in the lower position of the lens, the process proceeds to S509.

In S505, the reference position determination unit 206 determines whether or not the camera 101 is in a stationary state, as in the first embodiment. The reference position determination unit 206 proceeds to S508 to set the reference position of the image sensor 209 to the first reference position when it is in a stationary state, and proceeds to S509 when it is not in a stationary state to set the reference position of the image sensor 209. Set to the reference position of 2. Then, this process is terminated.

As described above, in the present embodiment, when the posture of the camera 101 is the lateral position, the grip upper position, the grip lower position or the reverse position and the camera 101 is in the stationary state, that is, the horizontal accuracy of the image sensor 209 is required. If, the reference position of the image sensor 209 is set to the first reference position. As a result, the tilt of the image sensor 209 becomes equal to the tilt of the camera 101, which is useful for adjusting the composition for obtaining a horizontal captured image. On the other hand, when the camera 101 is not in a stationary state or is in the lens upper position or the lens lower position even in the horizontal position, the grip upper position, the grip lower position, and the reverse position, that is, the horizontal accuracy of the image sensor 209 is not required. When camera shake is likely to occur, the reference position of the image sensor 209 is set to the second reference position. As a result, the vibration isolation performance in the roll direction can be improved.

In the first and second embodiments, the case where the reference position of the image sensor 209 is switched during the image pickup standby has been described, but the reference position may be switched at any timing other than the image pickup standby.

Next, Example 3 of the present invention will be described. In this embodiment, switching of the display of the electronic level when the reference position of the image sensor 209 is switched in the camera 101 having the function of the electronic level will be described. 9 (A) and 9 (B) show the display of the electronic level when the image sensor 209 is located at the first or second reference position. In these figures, the image sensor 209 is shown by a broken line.

The horizontal index of the electronic level displayed on the display unit 210 is useful when the user takes an image while adjusting the composition while being aware of the horizontal. FIG. 9A shows an electronic level when the image sensor 209 is located at the first reference position. As described in Examples 1 and 2, when the reference position of the image sensor 209 is set to the first reference position, it is when the inclinations of the camera 101 and the image sensor 209 in the roll direction are equal. At this time, if the camera 101 is horizontal, the image sensor 209 is also horizontal, and the horizontal index of the electronic level is also displayed horizontally.

On the other hand, FIG. 9B shows an electronic level when the image sensor 209 is located at the second reference position. As described in Examples 1 and 2, when the reference position of the image sensor 209 is set to the second reference position, the inclinations of the camera 101 and the image sensor 209 in the roll direction do not match, and the relative angle of θ. When there is a difference. As shown in FIG. 9B, when the second reference position is tilted by θ with respect to the counterclockwise means CCW with respect to the camera 101, the horizontal index is displayed tilted by θ with respect to the image sensor 209. Will be done. When the camera 101 is tilted in the clockwise direction CW by θ from this state, the horizontal index is displayed horizontally.

When the reference position of the image sensor 209 is switched from the first reference position to the second reference position in this way, the display of the horizontal index of the electronic level is also horizontal when the image sensor 209 is in the first reference position. The position is switched to a position offset by the correction angle θ from the indicated position. At this time, if the position of the horizontal index is suddenly switched, the user may feel uncomfortable, so the horizontal index may be gradually switched. Further, when the camera 101 is mounted on a tripod and the composition is adjusted, there is a possibility that the stationary state and the swinging state are frequently switched. In such a case, the reference position may not be switched while the stationary state and the swinging state are frequently switched, and the reference position may be switched when the stationary state or the swinging state is determined.

The flowchart of FIG. 10 shows the reference position control process performed by the system control unit 213 (reference position determination unit 206, rotation control unit 207, and image sensor drive unit 208) in this embodiment. Here, the processing from the state where the image sensor 209 is located at the first reference position or the second reference position and the electronic level is displayed on the display unit 210 is shown.

In S514, the reference position determination unit 206 determines whether or not the electronic level is being displayed on the display unit 210. When the electronic level is displayed, it can be estimated that the user is adjusting the composition using the electronic level before imaging in order to acquire a horizontal image, so the camera 101 and the shake state before and after imaging. Is changed, this process ends without switching the setting of the reference position of the image sensor 209. On the other hand, when the electronic level is not being displayed, the reference position determination unit 206 proceeds to S501 and performs the processes of S501 to S504 and S520 described in the first embodiment.

Further, the system control unit 213 as the display control means displays the horizontal index of the electronic level as shown in FIG. 9A when the reference position of the image sensor 209 is set to the first reference position in S503. When the reference position of the image sensor 209 is set to the second reference position in S504, the horizontal index of the electronic level is displayed as shown in FIG. 9B.

Also in this embodiment, it is possible to easily secure the horizontal accuracy of the image pickup device 209, and it is possible to improve the vibration isolation performance by rotationally driving the image pickup device 209 in the roll direction.

In the first to third embodiments, the case where the image pickup element 209 is rotationally driven in the roll direction by using the angular velocity sensor that detects the angular velocity in the roll direction has been described. The image pickup element may be shifted and driven in the pitch direction and the yaw direction.

Further, in the first to third embodiments, the case where the image pickup device 209 is rotationally driven to correct the image shake in the roll direction has been described, but the image shake in the roll direction may be corrected by rotating the captured image data. In this case, the reference position of the image sensor may be replaced with the reference position of the captured image data.
(Other Examples)
The present invention supplies a program that realizes one or more functions of the above-described embodiment to a system or device via a network or storage medium, and one or more processors in the computer of the system or device reads and executes the program. It can also be realized by the processing to be performed. It can also be realized by a circuit (for example, ASIC) that realizes one or more functions.

Each of the above-described examples is only a representative example, and various modifications and changes can be made to each of the examples in carrying out the present invention.

101 camera (imaging device)
201 Angular velocity sensor 208 Image sensor drive unit 209 Image sensor 213 System control unit

Claims (7)

An image pickup device having an image pickup device that captures a subject image.
An anti-vibration means that performs an anti-vibration operation that rotates the image data generated by using the image sensor or the output from the image sensor so as to reduce the image shake according to the rotational vibration of the image sensor.
It has a reference position setting means for setting a reference position in the rotation direction of the image sensor or the image data in the vibration isolation operation.
The reference position setting means has a first reference position in which the inclination of the image pickup device in the rotation direction matches the inclination of the image pickup device according to at least one of the setting state, the runout state, and the posture of the image pickup device. An image pickup apparatus characterized by setting any of a second reference position, which is a center position of a movable range of the image pickup element in the rotation direction. The imaging device according to claim 1, wherein the set state includes a plurality of set states in which the amount of image shake that can be reduced by the vibration isolation operation is different from each other. The imaging device according to claim 1 or 2, wherein the runout state includes a runout state in which the rotational runout angle is larger than a predetermined value, a runout state in which the angle is smaller than the predetermined value, and a stationary state. Display means for displaying information and
The display means has a display control means for displaying an index for indicating the inclination in the rotation direction.
The display control means determines the inclination of the index with respect to the image sensor when the reference position of the image sensor is set to the first reference position and when the reference position is set to the second reference position. The image pickup apparatus according to any one of claims 1 to 3, wherein the image pickup device is made different. The imaging device according to any one of claims 1 to 4, wherein the reference position setting means does not change the setting of the reference position when the index is displayed on the display means. It is a control method of an image pickup device having an image pickup element for capturing a subject image.
A step of performing a vibration isolation operation for rotating the image data generated by using the image sensor or the output from the image sensor so as to reduce the image shake according to the rotation shake of the image sensor.
It has a step of setting a reference position in the rotation direction of the image sensor or the image data in the vibration isolation operation.
In the step of setting the reference position, the tilt of the image sensor in the rotation direction matches the tilt of the image sensor according to at least one of the set state, the runout state, and the posture of the image sensor. It is characterized in that either the reference position or the second reference position, which is the center position of the movable range of the image pickup device in the rotation direction, is set. A computer program characterized in that a computer of an image pickup apparatus having an image pickup element for capturing a subject image is made to execute a process according to the control method according to claim 6.

Images