JP2023055075A - Imaging apparatus and method for controlling the same - Google Patents

Abstract

To prevent reduction in a resolution feeling of a cut-out image.SOLUTION: A control unit 101 moves an imaging unit 105 in a direction perpendicular to an imaging optical axis on the basis of a total shake correction amount to achieve image blur (image shake) correction operation. The control unit 101 specifies a high resolution feeling position P1 (for example, an optical center P0) that is a position with the highest resolution feeling in a picked-up image area 303 that is an image formed in an effective pixel area of the imaging unit 105. The control unit 101 determines a cut-out center Px that is a center position (center of gravity) of a cut-out area 304 to be closest to the high resolution feeling position P1 within a range in which the cut-out area 304 falls within the picked-up image area 303.SELECTED DRAWING: Figure 4

Description

The present invention relates to an imaging apparatus having an image blur correction function and a control method thereof.

2. Description of the Related Art In recent years, many imaging devices such as still cameras and video cameras are equipped with an image blur correction (image blur correction) function. There are mainly two types of optical image blur correction. The first type is a type (hereinafter referred to as lens shift image blur correction) that realizes an image blur correction operation by moving a correction lens dedicated to image blur correction in a direction perpendicular to the optical axis. The second type is a type that implements an image blur correction operation by moving the imaging device in a direction perpendicular to the optical axis (hereinafter referred to as sensor shift image blur correction).

On the other hand, a technique for electronically correcting image blur is also known. Japanese Unexamined Patent Application Publication No. 2004-100000 proposes a method of determining an output range of image data so as to suppress the amount of image blur at each point of an image captured by an image pickup device when shooting a moving image.

Japanese Patent Application Laid-Open No. 2020-106598

However, when the sensor shift image blur correction described above is performed, the center of the image pickup device may shift from the optical center of the lens, and the sense of resolution at the center of the captured image area may be lowered. Further, the degree of reduction in the sense of resolution increases as the amount of image blur correction increases. For this reason, in the conventional method of uniformly cutting out the vicinity of the center of the captured image area as the center of the cutout area, the resolution of the obtained cutout image may be deteriorated.

SUMMARY OF THE INVENTION An object of the present invention is to suppress deterioration in resolution of a clipped image.

In order to achieve the above object, the present invention provides an image pickup device that picks up an image of a subject, and based on the detected shake of the image pickup device, moves the image pickup device in a direction perpendicular to the imaging optical axis to reduce image blur. Correcting means for correcting, determining means for determining the position of a cutout region to be cut out from the captured image obtained by the imaging device, cutting out means for cutting out the cutout region from the captured image according to the position determined by the determining means, and, if there is a position with a high sense of resolution compared to the center of the area of the captured image, the determination means determines the position of the clipping area at the position with a high sense of resolution.

According to the present invention, it is possible to suppress deterioration in resolution of the clipped image.

1 is a block diagram of an imaging device; FIG. 4 is a flowchart showing panorama shooting processing. FIG. 4 is a schematic conceptual diagram showing the relative relationship among an image circle, a captured image area, and a cutout area; 9 is a flowchart showing clipping processing; FIG. 4 is a schematic conceptual diagram showing the relative relationship among an image circle, a captured image area, and a cutout area; FIG. 10 is a diagram showing the relationship between the distance from the synthesis boundary and the synthesis ratio;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an imaging device according to one embodiment of the present invention. This imaging device is configured as a digital camera 100 as an example.

The digital camera 100 can capture a still image, record information on a focus position, calculate a contrast value, and synthesize images. Furthermore, the digital camera 100 can perform enlargement processing or reduction processing on an image captured and stored or an image input from the outside.

The control unit 101 is, for example, a signal processor such as a CPU or MPU. The control unit 101 controls each unit of the digital camera 100 by reading and executing a program stored in advance in the ROM 107 . For example, the control unit 101 issues an imaging start and end command to the imaging unit 105 and issues an image processing command to the image processing unit 109 . A user's command is input to the digital camera 100 by the operation unit 112 , and the input command is transmitted to each part of the digital camera 100 through the control unit 101 .

The drive unit 102 is configured by a motor or the like, and mechanically operates the optical system 103 under the command of the control unit 101 . For example, the drive unit 102 moves the position of the focus lens included in the optical system 103 to adjust the focal length of the optical system 103 based on a command from the control unit 101 .

The optical system 103 is an imaging optical system including a zoom lens, a focus lens, an aperture, and the like. This diaphragm is a mechanism that adjusts the amount of transmitted light. By changing the position of the lens in the optical system 103, the focus position can be changed. The communication unit 104 mainly transmits information between the control unit 101 and the optical system 103 under the command of the control unit 101 .

The image capturing unit 105 is an image capturing element that captures an image of a subject, and performs photoelectric conversion to convert an incident optical signal into an electrical signal. For example, a CCD sensor, a CMOS sensor, or the like can be applied to the imaging unit 105 . The imaging unit 105 can capture a plurality of temporally continuous images as each frame of a moving image in the moving image capturing mode.

A shake detection unit 106 detects shake and shake applied to the digital camera 100 . A gyro sensor or the like that detects the angular velocity of shake or shake is used as the shake detection unit 106, for example. Shake data detected by the shake detector 106 is supplied to the controller 101 .

The ROM 107 is a read-only non-volatile memory as a recording medium, and stores the operation program of each block included in the digital camera 100, as well as parameters required for the operation of each block. A RAM 108 is a rewritable volatile memory, and is used as a temporary storage area for data output during operation of each block of the digital camera 100 .

An image processing unit 109 performs various image processing such as white balance adjustment, color interpolation, and filtering on the image output from the imaging unit 105 or the image recorded in the built-in memory 111 . Further, the image processing unit 109 compresses the image captured by the imaging unit 105 according to a standard such as JPEG.

The image processing unit 109 is composed of an integrated circuit (ASIC) that is a collection of circuits that perform specific processing. Note that the control unit 101 may perform processing according to a program read from the ROM 107 so that the control unit 101 may share some or all of the functions of the image processing unit 109 . If the control unit 101 shares all the functions of the image processing unit 109, it is not necessary to have the image processing unit 109 as hardware.

The display unit 110 is a liquid crystal display, an organic EL display, or the like. The display unit 110 displays an image temporarily stored in the RAM 108, an image stored in the built-in memory 111, a setting screen of the digital camera 100, or the like.

The built-in memory 111 records an image captured by the imaging unit 105, an image processed by the image processing unit 109, information on the focus position at the time of image capturing, and the like. A memory card or the like may be employed instead of the built-in memory 111 .

The operation unit 112 is, for example, buttons, switches, keys, mode dials, etc. provided in the digital camera 100 . The operation unit 112 may include a touch panel that is also used as the display unit 110 . A command from the user is sent to the control unit 101 via the operation unit 112 .

In the present embodiment, “sensor shift image blur correction” is adopted, which implements an image blur correction operation by moving the imaging unit 105 in a direction perpendicular to the imaging optical axis. In this image blur correction, the control unit 101 moves the imaging unit 105 in a direction perpendicular to the imaging optical axis based on the total shake correction amount.

Also, in the present embodiment, panorama synthesis processing is adopted. For example, while the user is swinging the imaging device, a plurality of temporally continuous images are captured, the vicinity of the center of the captured image is cut out in a strip shape, and the plurality of cut-out regions are combined to create a panoramic image. is obtained. In particular, by performing image blur correction each time a plurality of images are captured during a swing, a panorama image with little subject blur can be obtained. In the present embodiment, it is assumed that the user performs panorama shooting while changing the shooting direction in the pan direction, but the swing direction does not matter.

FIG. 2 is a flowchart showing panorama photographing processing. This processing is realized by the control unit 101 developing a program stored in the ROM 107 in the RAM 108 and executing the program. This process is started, for example, when the user instructs panorama shooting through the operation unit 112 . In this processing, the control unit 101 is an example of the correcting means, determining means, and clipping means in the present invention.

First, in step S<b>101 , the control unit 101 starts exposure by the imaging unit 105 . In step S<b>102 , the control unit 101 acquires shake data (shake angular velocity data) from the shake detection unit 106 . In step S103, the control unit 101 removes offset components generated by temperature drift and the like from the vibration data acquired in step S102, and then converts the data into angle data by integration. Then, the control unit 101 multiplies the angle data after conversion by gains related to the zoom magnification and the object distance to calculate the shake correction amount.

In step S104, the control unit 101 determines whether the exposure by the imaging unit 105 has ended. If the exposure by the imaging unit 105 is not finished, the control unit 101 returns to step S102, and if the exposure by the imaging unit 105 is finished, the process proceeds to step S105. In step S105, the control unit 101 determines the total amount of shake correction from the start of exposure to the end of exposure, that is, the total amount of shake correction obtained by repeating steps S102 and S103. get.

In step S106, a later-described clipping process (FIG. 4) is executed based on the total shake correction amount acquired in step S105. In step S107, it is determined whether or not the current exposure is for the second and subsequent shots. If the current exposure is for the first shot, the control unit 101 returns to step S101, and if the current exposure is for the second shot or later, step S108. proceed to Here, each area and position used in the clipping process will be described.

Aspects of swing blur correction during panorama shooting using sensor shift image blur correction will be described with reference to FIGS. FIGS. 3A to 3C are schematic conceptual diagrams showing the relative relationship among the image circle, captured image area, and clipping area. In FIGS. 3A to 3C, an image circle 301 is a circular image formed on the imaging plane by light passing through the optical system 103. In FIG. The optical center P 0 is the center of the optical system 103 . Normally, the imaging optical axis passes through the optical center P0. A captured image area 303 is an image formed in the effective pixel area of the imaging unit 105 . 3(a)-(c) show the relative position of the captured image area 303 with respect to the image circle 301. FIG.

A cropped area 304 is a strip-shaped area used for panorama synthesis. Note that it is not essential that the cutout region 304 is strip-shaped. The captured image center P2 is the center position (center of gravity) of the captured image area 303 . The cutout center Px is the center position (center of gravity) of the cutout region 304 . The high-resolution position P1 is a position specified as a position with the highest sense of resolution within the image circle 301 .

FIG. 3A shows the positional relationship between the image circle 301 and the captured image area 303 at the start of exposure (before shake correction and before clipping). At this point, the captured image center P2 coincides with the optical center P0. However, it is not essential that the captured image center P2 and the optical center P0 match at the start of exposure.

In FIGS. 3B and 3C, arrows indicate the user's swing direction in panoramic photography. 3(b) and 3(c) respectively show an example of the positional relationship between the optical center P0 and the cutting center Px in the conventional method and the present embodiment.

In panoramic photography, subject blur is generally suppressed by performing image blur correction in the direction opposite to the swing direction. FIG. 3B shows a state in which the captured image area 303 reaches the limit within the image circle 301 as a result of the image blur correction. In the conventional method, the captured image center P2 is determined as the cutout center Px of the cutout region 304 .

Therefore, when the captured image area 303 is set to the limit position within the image circle 301, the optical center P0 and the captured image center P2 are greatly separated. Since the swing speed of the user may not be constant in panoramic photography, the positional relationship between the optical center P0 and the cropping center Px often changes for each exposure. In general, the farther away the position is from the optical center P0, the lower the sense of resolution. Therefore, in the conventional method of uniformly cutting out the vicinity of the center of the captured image area 303 as the center of the cut-out area 304 and synthesizing a plurality of cut-out areas, there are cases where strip-shaped resolution unevenness occurs in the generated panorama image. there were.

Therefore, in the present embodiment, when there is a position with a higher sense of resolution than the captured image center P2, the control unit 101 determines the cutout center Px at the position with a higher sense of resolution. For example, it is assumed that the perceived high resolution position P1 is the optical center P0 and is a position with a higher perceived resolution than the captured image center P2. As shown in FIG. 3C, the control unit 101 determines the high-resolution position P1 (which coincides with the optical center P0 here) as the cutout center Px. Then, the control unit 101 cuts out the cutout region 304 with the cutout center Px as the center of the cutout region 304 . By performing such processing on each of the temporally continuous images, the resolution unevenness of the synthesized panorama image is suppressed.

FIG. 4 is a flow chart showing the clipping process executed in step S106 of FIG. FIGS. 5A to 5C are schematic conceptual diagrams showing the relative relationship among the image circle, captured image area, and clipping area. The clipping process will be described with reference to FIGS. 3 and 5. FIG.

In step S201, the control unit 101 identifies the captured image area 303 after image blur correction is reflected. Image blur correction is completed after step S105 in FIG. 3 and before execution of step S201 in FIG. That is, for each exposure, image blur correction is performed by driving the imaging unit 105 based on the total shake correction amount. As a result, the captured image area 303 is determined within the range of the image circle 301 . For example, a captured image area 303 is identified as shown in FIGS. 3B, 3C, and 5A.

In step S202, the control unit 101 identifies the high-resolution position P1. Here, two identification methods are conceivable as a method for identifying the high-resolution position P1, and either identification method may be adopted. First, the first identification method is a method of identifying the optical center P0 as the high-resolution position P1. A second identification method is a method of identifying the high-resolution position P1 based on the spatial frequency of the lens (optical system 103). In the second specifying method, when data about the spatial frequency characteristics of the lens can be acquired through the communication unit 104, the control unit 101 determines the center of the region with high contrast and/or high resolution in the spatial frequency characteristics as a high-resolution image. It may be specified as the image sensing position P1. For example, in FIGS. 3A, 3B, and 5A, a high-resolution position P1 is specified.

In step S203, if the cutout center Px is coincident with the perceived high-resolution position P1, the control unit 101 determines that a candidate for the cutout region 304 defined by the cutout center Px is within the captured image region 303 (of the captured image). area). Note that the initial values (height and width) of the angle of view of the cutout region 304 are determined in advance, and the information is stored in the ROM 107 . For example, in the example shown in FIG. 3C, the candidate for the clipping region 304 when the high-resolution position P1 is set as the clipping center Px falls within the captured image region 303 . However, in the example shown in FIG. 5A, the candidate for the clipping region 304 when the high-resolution position P1 is the clipping center Px protrudes from the captured image region 303 and does not fit within the captured image region 303 .

As a result of the determination in step S203, if the candidate for the clipping region 304 with the high-resolution position P1 as the clipping center Px fits within the captured image region 303, the control unit 101 proceeds to step S205. However, if the candidate for the clipping region 304 with the high-resolution position P1 as the clipping center Px does not fit within the captured image region 303, the control unit 101 executes step S204 and then proceeds to step S205.

In step S<b>204 , the control unit 101 corrects the candidates for the clipping region 304 . Here, there are two conceivable methods for correcting the candidate for the clipping region 304, and any of these correcting methods may be adopted.

First, in the first correction method, the control unit 101 narrows the width of the candidate for the clipping region 304 so that the candidate for the clipping region 304 fits within the captured image region 303 . At that time, the control unit 101 does not need to correct the position of the cutout center Px. For example, in the case of the example shown in FIG. 5A, the control unit 101 narrows the width of the candidate for the clipping region 304 by the first correction method, as shown in FIG. It should fit within the image area 303 . Note that the angle of view of the candidate for the clipping region 304 may be narrowed so as to fit within the captured image region 303 without being limited to the width.

In the second correction method, the control unit 101 corrects the position of the cutout center Px to a position closest to the high-resolution position P1 within a range in which the candidate for the cutout region 304 fits within the captured image region 303 . At this time, the control unit 101 does not need to change the angle of view of the clipping region 304 candidate. For example, in the case of the example shown in FIG. 5(a), the control unit 101 uses the second correction method to obtain a high-resolution image within a range in which the candidates fit within the captured image area 303, as shown in FIG. 5(c). The position of the cutout center Px is shifted so as to be closest to the image sensing position P1.

In step S205, the control unit 101 determines whether or not a predetermined amount of angle of view overlaps between the previously acquired clipping region 304 and the current clipping region 304 candidate clipped according to the currently determined clipping center Px. determine whether The “previously obtained clipped region 304” here is the clipped region 304 obtained in the previous loop of steps S101 to S106. If a predetermined amount of angle of view overlaps between the candidate for the clipped region 304 this time and the clipped region 304 acquired immediately before, the control unit 101 can appropriately combine the images. proceed to However, if there is no overlap of the angle of view of the predetermined amount between the two, the control unit 101 proceeds to step S206. In step S206, the control unit 101 corrects (shifts) the cut-out center Px so that a predetermined amount of overlap of field angles occurs between the two, and then proceeds to step S207.

In step S207, the control unit 101 determines the currently tentatively determined cutout center Px as the cutout center Px to be adopted in the current cutout. By determining the clipping center Px, the candidate for the clipping region 304 is determined as the formal clipping region 304 . If the angle of view (width) of the cutout region 304 has been changed by the first correction method (S204), the changed angle of view is adopted. In step S208, the control unit 101 cuts out the fixed cutout region 304 from the captured image region 303, and then ends the processing shown in FIG.

In step S<b>108 in FIG. 2 , the control unit 101 performs alignment processing for the cutout region 304 . This alignment processing will be described.

First, the control unit 101 uses the previous (immediately before) cutout region 304 cut out in step S106 as a reference for alignment, and sets the cutout region 304 cut out this time as a target for alignment. Next, the control unit 101 calculates the amount of positional deviation between the previous cutout region 304 and the current cutout region 304 . First, the control unit 101 sets a plurality of blocks in the previous clipping area 304 . Control unit 101 preferably sets the size of each block to be the same.

Next, the control unit 101 sets, as a search range, a range wider than the blocks at the same positions as the respective blocks set above in the cutout region 304 this time. Then, in each search range of the target image, the control unit 101 selects a corresponding point that has a minimum sum of absolute differences in brightness (Sum of Absolute Difference, hereinafter referred to as SAD) from the block set in the immediately preceding clipping region 304. Calculate The control unit 101 calculates the positional deviation as a vector from the center of the block set in the previous cutout region 304 and the corresponding point described above. In calculating the corresponding points described above, the control unit 101 may use a sum of squared differences (hereinafter referred to as SSD) or the like in addition to the SAD. Alternatively, control section 101 may use Normalized Cross Correlation (hereafter referred to as NCC) or the like.

Next, the control unit 101 calculates a conversion coefficient from the amount of positional deviation between the previous cutout region 304 and the current cutout region 304 . The control unit 101 uses, for example, a projective transform coefficient as the transform coefficient. However, the transform coefficients are not limited to projective transform coefficients, and affine transform coefficients or simplified transform coefficients with only horizontal and vertical shifts may be used.

The image processing unit 109 uses the conversion coefficients calculated by the control unit 101 to convert the target cutout region. For example, the control unit 101 can transform using equation (1).

In Equation (1), (x', y') indicate coordinates after deformation, and (x, y) indicate coordinates before deformation. Matrix A indicates the deformation coefficients calculated by the control unit 101 .

In step S<b>109 , the control unit 101 performs processing for synthesizing the clipped regions. The control unit 101 performs weighted average synthesis so that the seams between the clipped regions in the alignment process (step S108) are inconspicuous. At that time, the control unit 101 may use a synthesis ratio curve as illustrated in FIG.

FIG. 6 is a diagram showing the relationship between the distance from the synthesis boundary and the synthesis ratio in the range where the cutout regions 304 overlap. Information indicating this relationship is stored in the ROM 107 . The control unit 101 may perform weighted average synthesis according to the synthesis ratio curve shown in FIG. Note that the combining method to be used is not limited, and a different technique such as arithmetic mean combining may be used.

In step S110, the control unit 101 determines whether or not the panorama shooting has ended. Regardless of the panorama shooting end trigger, for example, there is a user operation, or the shooting size exceeds the maximum shooting size. Then, the control unit 101 returns to step S101 if the panorama shooting has not ended, and proceeds to step S111 if the panorama shooting has ended. A panorama image is generated by repeating the synthesizing process in step S109. In step S111, the control unit 101 saves a panorama image generated by a series of panorama imaging. The panorama image may be stored in the built-in memory 111, a memory card, the cloud, or the like regardless of where it is stored. After step S111, the control unit 101 terminates the processing shown in FIG.

According to this embodiment, the control unit 101 moves the imaging unit 105 in the direction perpendicular to the imaging optical axis based on the total shake correction amount. When the high-resolution position P1 exists as a position having a higher sense of resolution than the captured image center P2, the control unit 101 determines the cutting center Px at the high-resolution position P1. Then, the control unit 101 synthesizes the clipped regions 304 that are clipped from a plurality of captured images that are temporally consecutively obtained. As a result, it is possible to generate a panorama image with no uneven resolution in panorama synthesis using sensor shift image blur correction.

It should be noted that the present invention may be applied to a case where clipping is performed to obtain a single image without image synthesis. In this case, it is possible to suppress deterioration in resolution of the image (cutout image) of the cutout region 304 . In this case, steps S205 and S206 may be omitted.

Note that even if the perceived high-resolution position P1 exists, it is not essential to set the perceived high-resolution position P1 as the cropping center Px. That is, the control unit 101 may determine the cutout center Px at a position with a higher sense of resolution than the captured image center P2.

According to the present embodiment, when the clipping region 304 (candidate) when the clipping center Px is aligned with the perceived high resolution position P1 fits within the captured image region 303, the clipping is performed at the perceived high resolution position P1. The center Px is determined (Yes in S203). As a result, it is possible to effectively suppress deterioration in resolution. On the other hand, when the clipping region 304 (candidate) does not fit within the captured image region 303, the clipping region 304 (candidate) is corrected (S204). As a result, it is ensured that the clipping area 304 is determined within the captured image area 303 while suppressing the deterioration of the sense of resolution.

When performing image synthesis, the control unit 101 determines the clipping center Px so that a predetermined amount of angle of view overlaps between the current clipping region 304 candidate and the previously acquired clipping region 304 (S205). , S206). Accordingly, appropriate image synthesis can be performed.

Note that in step S204, the first and second correction methods may be combined and applied. Further, in the first correction method, changing the angle of view is not limited to narrowing the width, and may change the size in the vertical direction.

It should be noted that, in expressing the position of the cutout region 304, it is not essential to express the position of the center of gravity like the cutout center Px. The position of the clipping region 304 may be expressed by defining a definition in advance, such as the vertex of a rectangle.

Note that the present invention may be applied to imaging devices other than the digital camera 100 . For example, the present invention can be applied to mobile devices having built-in imaging devices, network cameras capable of capturing images, and the like. An imaging device to which the present invention is applied may be called an image processing device.

Although the present invention has been described in detail based on its preferred embodiments, the present invention is not limited to these specific embodiments, and various forms without departing from the gist of the present invention can be applied to the present invention. included.

(Other embodiments)
The present invention supplies a program that realizes one or more functions of the above-described embodiments to a system or device via a network or a non-transitory storage medium, and one or more processors of the computer of the system or device It is also possible to implement the process of reading and executing the The above program and a storage medium storing the above program constitute the present invention. The invention can also be implemented by a circuit (eg, an ASIC) that implements one or more functions.

101 control unit 105 imaging unit 303 captured image area 304 cutout area P0 optical center P1 high resolution position P2 captured image center Px cutout center

Claims (10)

an imaging device for imaging a subject;
correction means for correcting image blur by moving the image pickup device in a direction perpendicular to the imaging optical axis based on the detected shake of the imaging device;
Determination means for determining a position of a clipping region to be clipped from the captured image obtained by the imaging device;
a clipping means for clipping the clipping region from the captured image according to the position determined by the determining means;
When there is a position with a high sense of resolution compared to the center of the area of the captured image, the determination means determines the position of the clipping area at the position where the sense of resolution is high. Device. The determination means specifies a position with the highest sense of resolution, and when the position of the cutout region is aligned with the position with the highest sense of resolution, the cutout region falls within the region of the captured image. 2. The imaging apparatus according to claim 1, wherein the position of the clipping area is determined at the position where the sense of resolution is highest. The determining means corrects the clipped region when the clipped region does not fit within the region of the captured image when the position of the clipped region matches the position of the highest sense of resolution. 3. The imaging device according to claim 2. 4. The imaging apparatus according to claim 3, wherein, when correcting the clipped region, the determining unit narrows the angle of view of the clipped region so that the clipped region fits within the region of the captured image. When correcting the cutout region, the determining means determines the position of the cutout region so as to be closest to the position with the highest sense of resolution within a range in which the cutout region fits within the region of the captured image. 4. The imaging device according to claim 3, characterized in that: 6. The imaging apparatus according to any one of claims 2 to 5, wherein the determining means specifies the optical center of the imaging optical system as the position with the highest sense of resolution. 6. The imaging apparatus according to any one of claims 2 to 5, wherein the determining means specifies the position with the highest sense of resolution based on the spatial frequency characteristics of an imaging optical system. 8. The apparatus according to any one of claims 1 to 7, further comprising synthesizing means for synthesizing said clipped regions respectively clipped by said clipping means from a plurality of captured images obtained successively in time. Imaging device. When the plurality of captured images are obtained, the determining means determines the current clipping region so that a predetermined amount of angle of view overlaps between the current clipping region and the clipping region acquired immediately before. 9. The imaging device of claim 8, wherein the position of the . An imaging device comprising: an imaging device for imaging a subject; and correction means for correcting image blur by moving the imaging device in a direction perpendicular to an imaging optical axis based on detected vibration of the imaging device. A control method comprising:
a determination step of determining the position of a cutout region to be cut out from the captured image obtained by the imaging device;
a clipping step of clipping the clipping region from the captured image according to the position determined by the determining step;
In the determination step, when there is a position with a high sense of resolution compared to the center of the region of the captured image, the position of the cutout region is determined at the position where the sense of resolution is high. How to control the device.

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