JP2007194813A - Imaging apparatus, control method, and control program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an imaging apparatus, equipped with a hand shake correcting mechanism, which can detect a hand shake with high precision and is reducible in power consumption. <P>SOLUTION: A digital still camera 1 is equipped with an X-axial gyrosensor 31 and a Y-axial gyrosensor 32 (a first hand shake quantity detection section) which detect a hand shake quality, and an acceleration sensor 33 and an azimuth sensor 34 which detect a hand shake quantity with lower power consumption and lower precision than the gyrosensors 31 and 32. When it is decided that the hand shake quantity detected by the second hand shake quantity detection section becomes smaller than a reference hand shake quantity, the first hand shake quantity detection section is actuated to make a hand shake correction of a picked-up image based upon the detected hand shake quantity. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an imaging apparatus, a control method, and a control program, and more particularly to a technique for reducing power consumption associated with driving a camera shake correction mechanism that performs camera shake correction with high accuracy in an imaging apparatus including a camera shake correction mechanism.

2. Description of the Related Art Conventionally, in an imaging apparatus such as a digital still camera that captures a still image, various methods have been proposed to avoid the influence of camera shake that occurs during shooting.
In such an imaging apparatus, there is known an apparatus equipped with both an angular velocity sensor and an acceleration sensor in order to detect camera shake with higher accuracy for camera shake correction (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 7-80515

However, if both an angular velocity sensor and an acceleration sensor are installed, the power consumption increases, and a portable device such as a digital still camera cannot be driven for a long time or is driven for a long time. Therefore, it becomes necessary to mount a power source with a large capacity, and the apparatus cannot be miniaturized and the weight may increase.
Accordingly, an object of the present invention is to provide an imaging apparatus, a control method, and a control program capable of detecting camera shake with high accuracy and reducing power consumption in an imaging apparatus having a camera shake correction mechanism. There is to do.

In order to solve the above-described problem, the imaging apparatus operates with a first camera shake amount detection unit that detects the amount of camera shake, power consumption lower than that of the first camera shake amount detection unit, and has a lower accuracy than the first camera shake amount detection unit. The second camera shake amount detecting unit for detecting the amount of camera shake and the second camera shake amount detecting unit start up the first camera shake amount detecting unit when it is determined that the detected camera shake amount is smaller than the reference camera shake amount. And a camera shake amount detection control unit that detects the amount of camera shake, and a camera shake correction unit that performs camera shake correction on an image captured based on the camera shake amount detected by the first camera shake amount detection unit. It is said.
According to the above configuration, the camera shake amount detection control unit activates the first camera shake amount detection unit when the second camera shake amount detection unit determines that the detected camera shake amount is smaller than the reference camera shake amount. The camera shake correction unit performs camera shake correction on the captured image based on the camera shake amount detected by the first camera shake amount detection unit.

In this case, the camera shake amount detection control unit determines that the detected camera shake amount is a reference value when an average value of the camera shake amount detected by the second camera shake amount detection unit within a predetermined period is smaller than the reference camera shake amount. You may make it discriminate | determine that it became smaller than the amount of camera shake.
The first camera shake amount detection unit may include a gyro sensor that detects an angular velocity due to camera shake.

Furthermore, the second camera shake amount detection unit may include an acceleration sensor that detects acceleration caused by camera shake or an orientation sensor that detects azimuth change caused by camera shake.
In addition, the first camera shake amount detection unit includes a plurality of gyro sensors that respectively detect angular velocities caused by camera shake, and the plurality of gyros cooperate to detect the camera shake amount and detect the second camera shake amount. The unit may be configured by any one of the plurality of gyro sensors, and the amount of camera shake may be detected by the one gyro sensor.

  Also, a first camera shake amount detection unit that detects a camera shake amount, and a second camera shake that operates with lower power consumption than the first camera shake amount detection unit and detects the camera shake amount with lower accuracy than the first camera shake amount detection unit. In the control method of the imaging apparatus including the amount detection unit, when the second camera shake amount detection unit determines that the detected camera shake amount is smaller than the reference camera shake amount, the first camera shake amount detection unit is A camera shake amount detection control process for starting and detecting a camera shake amount; and a camera shake correction process for performing camera shake correction on an image captured based on the camera shake amount detected by the first camera shake amount detection unit. It is a feature.

  Also, a first camera shake amount detection unit that detects a camera shake amount, and a second camera shake that operates with lower power consumption than the first camera shake amount detection unit and detects the camera shake amount with lower accuracy than the first camera shake amount detection unit. In the control program for controlling the image pickup apparatus including the amount detection unit by a computer, the second camera shake amount detection unit determines that the detected amount of camera shake is smaller than the reference camera shake amount. Activating one camera shake amount detection unit, causing the first camera shake amount detection unit to detect a camera shake amount, and performing camera shake correction on an image captured based on the camera shake amount detected by the first camera shake amount detection unit; It is characterized by that.

Next, preferred embodiments of the present invention will be described with reference to the drawings.
In the present embodiment, a case will be described in which the present invention is applied to a portable digital still camera (hereinafter simply referred to as “digital still camera”) as one aspect of an electronic apparatus.

[1] First Embodiment FIG. 1 is a schematic configuration block diagram of a digital still camera according to a first embodiment.
As shown in FIG. 1, the digital still camera 1 includes a control unit 10, a photographing unit 20, a camera shake amount detection unit 30, an operation unit 40, a removable medium 50, an I / F unit 51, and a video output terminal 52.

  The control unit 10 functions as a control unit that controls each unit of the digital still camera 1, and includes a CPU 11 that executes various programs and performs arithmetic processing, and a rewrite that stores a control program 100 executed by the CPU 11 and various data. A possible flash ROM (hereinafter simply referred to as “ROM”) 12, a RAM 13 functioning as a work area for temporarily storing the calculation results and various data of the CPU 11, and a timer circuit for measuring time in self-timer shooting or the like 14. The control program 100 stored in the ROM 12 includes a moving image display processing program for realizing autofocus correction.

  The control program 100 can be recorded and distributed on a computer-readable recording medium 60 such as a CD-ROM, DVD-ROM, or flexible disk. Further, the personal computer and the digital still camera 1 are communicably connected by a cable or the like, and the control program 100 of the recording medium 60 read by the personal computer is output to the still camera 1, whereby the control program 100 is stored in the flash ROM 12. Can also be stored.

Next, the imaging unit 20 captures a subject as a still image, and includes a camera control circuit 21, a photographing camera 22, a photographing unit RAM 23, and a display panel 24. The camera control circuit 21 controls each unit of the photographing unit 20 under the control of the control unit 10. The photographing camera 22 takes an image with a CCD sensor or a CMOS image sensor and outputs corresponding image data to the camera control circuit 21. In this case, in a CCD or CMOS image sensor, photoelectric conversion elements are two-dimensionally arranged in a matrix or honeycomb. The imaging camera 22 includes an optical lens system having a plurality of optical lenses, a lens driving device for driving the optical lens system to realize zoom, focus, and the like, and an aperture for performing automatic exposure. An aperture driving device for realizing the configuration, an A / D conversion circuit for converting an analog signal acquired by a CCD or a CMOS image sensor into a digital signal and outputting it as image data are configured.
The photographing unit RAM 23 temporarily stores image data.

The display panel 24 displays various information such as a photographed still image and a setting screen, and is configured by a flat display panel such as a liquid crystal display panel or an organic EL panel.
The removable medium 50 stores moving image data at the time of shooting, and includes, for example, a video tape, a recordable optical disk, and a removable hard disk.
Under such a configuration, the image data of the frame output from the photographing camera 22 is subjected to predetermined image processing by the camera control circuit 21, and then temporarily stored in the photographing unit RAM 23. Then, it is sequentially possible as moving image data on the removable medium 50. The image data stored in the imaging unit RAM 23 is used when a still image shot on the display panel 24 is displayed in live view, and the image data of the still image stored in the removable medium 50 is a still image after shooting. Used when displaying.

FIG. 2 is an explanatory diagram of axes when camera shake is detected.
The camera shake amount detection unit 30 functions as a camera shake amount detection unit that detects the camera shake amount. Specifically, as shown in FIG. 2, the camera shake amount detection unit 30 moves the frame 70 in the height direction (hereinafter referred to as the X axis) and in the horizontal direction (hereinafter referred to as the Y axis). In order to detect each of the angular velocities individually, as shown in FIG. 1, two gyro sensors 31, 32 of an X-axis gyro sensor 31 and a Y-axis gyro sensor 32 are provided. , 32 outputs an angular velocity detection signal having a voltage value corresponding to the angular velocity to the control unit 10.
At this time, the X-axis gyro sensor 31 and the Y-axis gyro sensor 32 function as a first camera shake amount detection unit.

Further, as shown in FIG. 2, the camera shake amount detection unit 30 detects an acceleration caused by camera shake and outputs an acceleration detection signal to the control unit 10, and detects an azimuth change caused by camera shake to obtain an azimuth. And a (magnetic) direction sensor 34 that outputs a detection signal to the control unit 10.
In this case, the acceleration sensor 33 and the azimuth sensor 34 have lower camera shake detection accuracy but lower power consumption than the X-axis gyro sensor 31 and the Y-axis gyro sensor 32.
The acceleration sensor 33 and the azimuth sensor 34 function as a second camera shake amount detection unit.

  The control unit 10 takes in the acceleration detection signal output from the acceleration sensor 33 and the azimuth detection signal output from the azimuth sensor 34 in synchronization with the sampling period of the frame 70, monitors the camera shake state, and controls each gyro sensor 31, 32. In addition to performing motion control, when each of the gyro sensors 31 and 32 is operating, the angular velocity detection signal is captured, the amount of camera shake is calculated for each of the X axis and the Y axis, and is associated with the image data of the frame 70. Alternatively, it is added to the image data and stored in the removable medium 50.

In the first embodiment, the acceleration sensor 33 is used to calculate the low-precision X-axis direction camera shake amount AX based on the speed, which is an integral value of acceleration during a predetermined sampling period, and also on the movement amount, which is the integral value of speed. To do.
Further, using the azimuth sensor 34, the low-accuracy Y-axis direction camera shake amount AY is calculated based on the azimuth change during a predetermined sampling period.
Further, the gyro sensors 31 and 32 are used to calculate the integral angular velocity during a predetermined sampling period, and hence the camera shake amount θ (X-axis direction camera shake amount θx and Y-axis direction camera shake amount θy) during the predetermined sampling period. In this case, since the voltage value of the angular velocity detection signal when the angular velocity (rad / sec) is zero differs depending on individual differences of the gyro sensors 31, 32, etc., in this embodiment, the imaging is performed after the power of the main body is turned on. Before starting the operation, the angular velocity detection signals of the respective gyro sensors 31 and 32 are sampled, and the average value is set as the zero point voltage value. At this time, when a plurality of zero point voltage values are obtained over a certain period of time, and the difference between the zero point voltage values and the average value of these zero point voltage values is equal to or less than a predetermined value, a certain percentage (for example, 99%) or more is obtained. In addition, the average value of the zero point voltage values is set as the actual zero point voltage value, which makes it possible to set the zero point voltage value when the main body is in a stopped state.

  The operation unit 40 includes a plurality of operation elements operated by a user, and includes, for example, a power button and operation keys for inputting various instructions such as shooting start / end. The I / F unit 51 is an interface for connecting the still camera 1 to a personal computer via a cable or the like so that the image data stored in the removable medium 50 is output to the personal computer. The data is output to the personal computer via the I / F unit 51. The video output terminal 52 is a terminal for outputting a video signal corresponding to image data to an external display device such as a television or a projector. In addition to the above-described components, the still camera 1 includes an audio circuit for capturing and recording / reproducing audio signals, an audio output terminal for outputting audio signals to an external speaker, an external amplifier, and the like. I have.

Next, the operation will be described.
FIG. 3 is a process flowchart of the first embodiment.
In this case, it is assumed that the X-axis gyro sensor 31 and the Y-axis gyro sensor 32 are in a stopped state in the initial state.
First, when the camera shake mode is turned on by the user (step S11), the CPU 11 reduces the amount of motion based on the acceleration detection signal input from the acceleration sensor 33 or the direction detection signal input from the direction sensor 34. The accuracy X-axis direction camera shake amount AX and the low-precision Y-axis direction camera shake amount AY are calculated and acquired (sampled) (step S12).
Next, the average value X (= corresponding to the average value of the camera shake amount) of the most recent samples based on the low accuracy X axis direction camera shake amount AX and the low accuracy Y axis direction camera shake amount AY is calculated (step S13).
Subsequently, whether or not the average value X of the motion amount is smaller than the reference blur amount P, that is,
X <P
It is discriminate | determined whether it is (step S14).

In the determination of step S14, when the average value X of the motion amount is equal to or larger than the reference blur amount P, that is,
X ≧ P
In this case, the amount of camera shake is still large, and it is determined that the stage has not reached the stage where the photographing can be performed, so that the process returns to step S12 and the same process is repeated.
In the determination of step S14, the average value X of the motion amount is smaller than the reference blur amount P, that is,
X <P
In the case where the camera shake has been settled, the operation of the X-axis gyro sensor 31 and the Y-axis gyro sensor 32 is started and the camera shake detection is started (step S3). S15), the process proceeds to the photographing process (step S16).
In this case, the acceleration sensor 33 and the azimuth sensor 34 may be temporarily stopped when the operations of the X-axis gyro sensor 31 and the Y-axis gyro sensor 32 are stabilized. As a result, the power consumption can be further reduced.

FIG. 4 is a process flowchart of the photographing process.
In this case, when the shutter switch is half-pressed, the CPU 11 controls the camera control circuit 21 to perform automatic exposure control and to perform automatic focus (autofocus) control.
When the shutter switch is fully pressed, the CPU 11 detects the integrated angular velocity during a predetermined sampling period based on the output signal from the angular velocity detector 30 (step S31).

The calculation of the integral angular velocity in the control unit 10 will be briefly described. The control unit 10 calculates the angular velocity (rad / second) based on the angular velocity detection signal, and uses this angular velocity (rad / second) for a predetermined sampling interval (second). The integral angular velocity Σ (rad / sec) is calculated by integrating with. Actually, the control unit 10 calculates the X-axis direction integral angular velocity Σx and the Y-axis direction integral angular velocity Σy as the integral angular velocities.
Subsequently, the CPU 11 determines whether or not a panning operation of the digital still camera has been performed based on the X-axis direction integral angular velocity Σx and the Y-axis direction integral angular velocity Σy (step S32). Here, the panning operation means, for example, that the person is placed at the center of the screen and the shutter switch is half-pressed to set the autofocus lock state for the person, and then the direction of the digital still camera is changed, and the side of the screen is changed. This is an operation to correct the composition so that a person is placed on the screen.

When the panning operation is performed in the digital still camera in the determination in step S32 (step S32; Yes), it is necessary to maintain the autofocus lock state without considering camera shake, so that the image data capturing process is immediately performed. Transition is made (step S19). That is, the lens is fixed at the in-focus position where the autofocus lock state is set by the autofocus control described above, the image is taken by the photographing camera 22, and the obtained image data is temporarily taken into the photographing unit RAM 23 and the control is performed. Under the control of the unit 10, an image data capturing process to be recorded on the removable medium 50 is performed (step S35).
In parallel with the recording operation of the image data to the removable medium 50, the captured image is displayed on the display panel 24.

If it is determined in step S32 that the digital still camera is not panning (step S32; No), the CPU 11 of the control unit 10 is based on the calculated X-axis direction integral angular velocity Σx and Y-axis direction integral angular velocity Σy. The X-axis direction camera shake amount θx (mm) and the Y-axis direction camera shake amount θy (mm) are calculated, and whether or not at least one of the X-axis direction camera shake amount θx and the Y-axis direction camera shake amount θy exceeds an allowable value. Is determined (step S33). In this case, the allowable value is appropriately set depending on the shooting conditions such as the zoom magnification and the shutter speed.
If it is determined in step S33 that at least one of the X-axis direction camera shake amount θx and the Y-axis direction camera shake amount θy exceeds an allowable value (step S33; Yes), the process proceeds to camera shake correction processing (step S34). ).

In the camera shake correction process, when the photographing camera 22 includes a lens drive driving camera shake correction mechanism, the camera control circuit 21 drives the lens drive drive camera shake correction mechanism to perform camera shake correction. In addition, when the photographing camera 22 has a built-in CCD drive-driven camera shake correction mechanism, the camera control circuit 21 drives the CCD drive-driven camera shake correction mechanism to perform camera shake correction. When performing camera shake correction by image processing, power is supplied to the image processing circuit, or the processing clock of the CPU 11 is changed to a high-speed clock to perform camera shake correction.
Then, the image data obtained after the correction is temporarily captured in the photographing unit RAM 23, and the image data capturing process to be recorded on the removable medium 50 is performed under the control of the control unit 10 (step S35).

Next, the CPU 11 increases at least one of the X-axis direction camera shake amount θx and the Y-axis direction camera shake amount θy to a large camera shake amount that cannot be corrected by the camera shake correction, that is, continues the photographing process. It is determined whether or not a state where it should not have been reached (step S36).
If it is determined in step S36 that the imaging process can be continued without significantly increasing both the X-axis direction camera shake amount θx and the Y-axis direction camera shake amount θy, the process ends.
In the determination in step S36, at least one of the axial camera shake amount θx and the Y-axis camera shake amount θy increases to a large camera shake amount that cannot be corrected by the camera shake correction, and the photographing process should not be continued. When the state is reached, the operations of the X-axis gyro sensor 31 and the Y-axis gyro sensor 32 are stopped, the acceleration sensor 33 and the azimuth sensor 34 are activated again, and the process proceeds to step S12. Processing will be performed.

  As described above, according to the first embodiment, whether or not to shift to the shooting process by calculating the camera shake amount by the low power consumption acceleration sensor and the azimuth sensor at the stage considered not to shift to the shooting process. When the amount of camera shake detected by the acceleration sensor and direction sensor is reduced and it is predicted that the camera will actually shift to shooting processing, a high-accuracy but highly accurate gyro sensor is activated to Since the amount is detected, power consumption can be reduced while effectively detecting the amount of camera shake with high accuracy.

[2] Second Embodiment FIG. 5 is a block diagram of a schematic configuration of a digital still camera according to a second embodiment.
In FIG. 5, parts similar to those in the first embodiment in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted.
The second embodiment is different from the first embodiment in that only the X-axis gyro sensor 31 and the Y-axis gyro sensor 32 are provided as a camera shake detection unit.
That is, the camera shake amount detection unit 30 functions as a camera shake amount detection unit that detects the amount of camera shake, and the X-axis gyro sensor 31 and the Y-axis gyro sensor 32 cooperate to serve as a first camera shake amount detection unit. It is functioning.
Furthermore, one of the X-axis gyro sensor 31 and the Y-axis gyro sensor 32, for example, the X-axis gyro sensor 31, and the case where the X-axis gyro sensor 31 and the Y-axis gyro sensor 32 cooperate to detect camera shake. In comparison, the camera shake amount detection accuracy is low, but it functions as a second camera shake amount detection unit that performs camera shake detection with low power consumption.

Next, the operation will be described.
FIG. 6 is a process flowchart of the second embodiment.
In this case, it is assumed that the X-axis gyro sensor 31 and the Y-axis gyro sensor 32 are in a stopped state in the initial state.
First, when the camera shake mode is turned on by the user (step S41), the CPU 11 starts the operation of one of the X-axis gyro sensor 31 and the Y-axis gyro sensor 32, for example, the X-axis gyro sensor 31. (Step S42), and the low-precision X-axis direction camera shake amount AX as the amount of motion is calculated and acquired (sampled) (Step S43).
Next, an average value X (= corresponding to an average value of the camera shake amount) of the most recent samples based on the low-precision X-axis direction camera shake amount AX is calculated (step S44).
Subsequently, whether or not the average value X of the motion amount is smaller than the reference blur amount P, that is,
X <P
It is determined whether or not (step S45).

In the determination of step S45, when the average value X of the motion amount is equal to or larger than the reference blur amount P, that is,
X ≧ P
In this case, the amount of camera shake is still large, and it is determined that the stage has not reached the stage where the photographing can be performed, so that the process returns to step S12 and the same process is repeated.
In the determination of step S45, the average value X of the motion amount is smaller than the reference blur amount P, that is,
X <P
In this case, it is assumed that the camera shake has been settled and the camera is shifting to a state where photographing is possible, and the operation of the Y-axis gyro sensor 32 is further started, and the X-axis gyro sensor 31 and the Y-axis gyro sensor 32 are The camera shake detection is started in cooperation (step S46), the process proceeds to the photographing process, and the same process as in the first embodiment is performed (step S47, steps S31 to S37 in FIG. 4).

  In this case, in the determination in step S36, at least one of the axial camera shake amount θx and the Y-axis camera shake amount θy increases to a large camera shake amount that cannot be corrected by camera shake correction, and the photographing process is continued. If it should not be, the operation of the Y-axis gyro sensor 32 is stopped, and only the X-axis gyro sensor 31 is operated again. Then, the process proceeds to step S12. Will be performed.

As described above, according to the second embodiment, in the stage where it is considered that the process does not shift to the shooting process, it is determined whether or not to shift to the shooting process by calculating the amount of camera shake using only one gyro sensor, When the amount of camera shake detected by only one gyro sensor is reduced and it is predicted that the camera will actually move to the shooting process, the two gyro sensors are activated to detect with high accuracy but with high power consumption. Thus, the amount of camera shake is detected in cooperation with each other, so that power consumption can be reduced while effectively detecting the amount of camera shake with high accuracy.
In the above description of the first embodiment, a configuration including both the acceleration sensor and the azimuth sensor has been adopted. However, instead of this, a configuration including at least a biaxial acceleration sensor may be employed.

In the above description, camera shake correction is performed only for camera shake in the X-axis and Y-axis directions. However, for the Z-axis (the optical axis direction of the lens), a Z-axis gyro sensor is provided in the angular velocity detection unit 30 to reduce camera shake. It is also possible to perform a correction (including autofocus correction).
In the above description, the digital still camera has been described. However, the present invention can be applied to other optical images such as a camera provided in a mobile phone, a PDA integrated camera, and a single-lens reflex camera.

1 is a schematic configuration block diagram of a digital still camera according to a first embodiment. It is explanatory drawing of the axis | shaft at the time of camera shake detection. It is a processing flowchart of a 1st embodiment. It is a process flowchart of an imaging process. It is a general | schematic block diagram of the digital still camera of 2nd Embodiment. It is a processing flowchart of a 2nd embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Digital still camera, 10 ... Control part (hand-shake amount detection part), 11 ... CPU (hand-shake amount detection control part, hand-shake correction part), 20 ... Shooting part, 21 ... Camera control circuit, 22 ... Shooting camera, 24 ... Display panel 30 ... Shake amount detection unit 31 ... X-axis gyro sensor (first camera shake detection unit) 32 ... Y-axis gyro sensor (first camera shake detection unit) 33 ... Acceleration sensor (second camera shake detection unit) 34 ... Direction sensor (second camera shake detection unit), 50 ... Removable media, 60 ... Recording medium, 70 ... Frame.

Claims (7)

A first camera shake amount detection unit for detecting a camera shake amount;
A second camera shake amount detection unit that operates with lower power consumption than the first camera shake amount detection unit and detects a camera shake amount with a lower accuracy than the first camera shake amount detection unit;
In the second camera shake amount detection unit, when it is determined that the detected camera shake amount is smaller than the reference camera shake amount, the first camera shake amount detection unit is activated to detect the camera shake amount; and
A camera shake correction unit that performs camera shake correction on an image captured based on the camera shake amount detected by the first camera shake amount detection unit;
An imaging apparatus comprising: The imaging device according to claim 1,
The camera shake amount detection control unit, when the average value of the camera shake amount detected by the second camera shake amount detection unit within a predetermined period is smaller than the reference camera shake amount, the detected camera shake amount is smaller than the reference camera shake amount. An imaging apparatus characterized by determining that the size has become smaller. The imaging apparatus according to claim 1 or 2,
The imaging apparatus according to claim 1, wherein the first camera shake amount detection unit includes a gyro sensor that detects an angular velocity due to camera shake. The imaging apparatus according to any one of claims 1 to 3,
The second camera shake amount detection unit includes an acceleration sensor that detects acceleration caused by camera shake or an orientation sensor that detects azimuth change caused by camera shake. The imaging apparatus according to claim 1 or 2,
The first camera shake amount detection unit includes a plurality of gyro sensors that respectively detect angular velocities caused by camera shake, and the plurality of gyros cooperate to detect the camera shake amount,
The second camera shake amount detection unit is configured by any one of the plurality of gyro sensors, and detects the camera shake amount by the one gyro sensor.
An imaging apparatus characterized by that. A first camera shake amount detection unit that detects the amount of camera shake and a second camera shake amount detection that operates with lower power consumption than the first camera shake amount detection unit and detects the camera shake amount with lower accuracy than the first camera shake amount detection unit. A control method for an imaging apparatus comprising:
In the second camera shake amount detection unit, when it is determined that the detected camera shake amount is smaller than the reference camera shake amount, the first camera shake amount detection unit is activated to detect the camera shake amount; and
A camera shake correction process for performing camera shake correction on an image captured based on the camera shake amount detected by the first camera shake amount detection unit;
An image pickup apparatus control method comprising: A first camera shake amount detection unit that detects the amount of camera shake and a second camera shake amount detection that operates with lower power consumption than the first camera shake amount detection unit and detects the camera shake amount with lower accuracy than the first camera shake amount detection unit. In a control program for controlling an imaging device provided with a computer by a computer,
In the second camera shake amount detection unit, when it is determined that the detected camera shake amount is smaller than the reference camera shake amount, the first camera shake amount detection unit is activated,
The amount of camera shake is detected by the first camera shake amount detection unit,
Causing camera shake correction to be performed on an image captured based on the camera shake amount detected by the first camera shake amount detection unit;
A control program characterized by that.

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