JP2009272890A - Image processing apparatus and method, and imaging device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To optimally correct the image blurring arising when a user is doing a shoot with a digital camera in one hand, or in other cases. <P>SOLUTION: The blurring caused when imaged by a camera as represented by the image blurring due to camera shake has a low-pass frequency component of great intensity, and the intensity is decreased at higher-pass frequency. The high-frequency image blurring component, which has relatively low intensity, is corrected by an optical correction means without degradation in the taken image due to exposure time or the like. At the same time, the low-frequency image blurring component ensures almost no degradation in the taken image even in the event of correction using an electronic correction means. Further, combination with the optical correction means ensures significantly large correction angles, thereby allowing proper correction even for high-intensity image blurring. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an image processing apparatus, an image processing method, and an imaging apparatus that process image information, and in particular, an image processing apparatus, an image processing method, and an imaging process that process image information captured using a solid-state imaging device or the like. Relates to the device.

  More specifically, the present invention relates to image processing that corrects camera shake that occurs when a user performs a shooting operation of a digital camera with one hand, and also shakes that have a large amplitude that occurs when a photographer takes a video camera while walking or the like. The present invention relates to an apparatus, an image processing method, and a photographing apparatus, and in particular, an image processing apparatus that expands a correction range using correction means suitable for a low-frequency component and a high-frequency component of a shake frequency and corrects a shake with a large amplitude. The present invention relates to an image processing method and a photographing apparatus.

  Recently, in place of a silver salt camera that shoots using a film or a photosensitive plate, an image is captured by a solid-state imaging device in which a light receiving portion of a pixel array that performs photoelectric conversion and accumulation is configured by a photodiode, and is subjected to digital code processing and stored. Digital cameras are widespread. Examples of the solid-state imaging device include a CCD (Charge Coupled Device) and a CMOS (Complementary Metal Oxide Semiconductor: complementary metal oxide semiconductor). For example, a CMOS sensor has advantages that it consumes less power than a CCD sensor, and is driven by a single low voltage and can be easily integrated with the surrounding sea.

  This type of digital camera can be roughly divided into a digital still camera that captures still images or a digital video camera that captures moving images, but many products are small and can be carried or easily operated with one hand. It is possible.

  On the other hand, if the camera is often held with one hand, camera shake tends to occur during photographing, and the photographed image is blurred. Furthermore, in the case of a conventional camera with a camera shake correction function, correction is not sufficiently effective for a shake with a large amplitude such as when shooting while walking, and the captured image is greatly shaken. Watching video that includes shaking is dangerous for video sickness. In addition, with the recent increase in the size of televisions, the viewing environment of homes tends to increase in screen size, and the risk of video sickness is further increased. When the shaking is particularly severe, there is an effect on the human body such as nausea and headache, which is a problem related to the safety of the video.

  Some current digital cameras are equipped with image stabilization technology. Examples of the correction method include an optical correction method that corrects image blur by moving an optical image stabilization mechanism, and an electronic correction method that corrects image blur by changing the range in which an image is cut out from the image sensor. be able to.

  As an optical correction method, when a shift unit having a shift lens is interposed in an optical system consisting of a plurality of lenses for forming a subject image on the CCD imaging surface, and image blurring occurs on the imaging surface due to camera shake. A shift method is known in which the shift lens is moved to form an image at the same position on the imaging surface (see, for example, Patent Document 1).

  In addition, as an electronic correction method, for example, in an XY address type CMOS sensor, a deviation occurs in the exposure period between lines, so that the camera shake correction is performed with a single value calculated from the camera shake information obtained in one frame. In view of the problem that even if it is performed, it cannot be completely removed, an information processing apparatus has been proposed that determines a reading position of image data by generating a camera shake correction amount for each line from camera shake information obtained during one frame. (See, for example, Patent Document 2).

  However, since there are some restrictions in any camera shake correction method, there is a problem that the influence of image blur due to camera shake cannot be sufficiently removed.

  In optical correction, when moving an anti-vibration lens, etc., and performing optical blur correction, there are optical constraints to prevent the image on the image sensor from being garbled, and a machine that depends on the lens movement range. For example, with a current standard small camera, only a correction range within ± 0.3 degrees can be obtained. In order to obtain a large correction range, it is necessary to increase the size of the lens group and the anti-vibration mechanism driving unit, so that the minimum correction range is kept in a normal small camera. That is, shake exceeding the correction angle cannot be corrected in principle. For example, even when the photographer is walking quietly, a blur of ± 1 degree or more exceeding the correction angle is generally generated, and the image taken with the optical correction alone has a large image blur. It becomes an unpleasant image. In other words, the optical correction can respond sensitively to camera shakes of low amplitude and high frequency components (not small), but cannot handle camera shakes of relatively large amplitude that occur during walking.

  On the other hand, for electronic correction, the expansion of the correction range has become relatively easy due to the recent increase in the number of pixels of the image sensor. However, due to restrictions on the update frequency standard of the video signal, camera shake exceeds this update frequency. Correction is impossible when the frequency becomes high. Even within the update frequency, the image becomes unclear due to the high frequency component of the blur frequency due to restrictions such as the exposure time. That is, in the electronic correction, it is possible to cope with a larger amplitude camera shake within the margin between the output image of the image sensor and the display or recording image (beyond the restriction of the correction angle of the optical correction). It cannot cope with camera shake of high frequency components.

  For example, an imaging apparatus including both an optical camera shake correcting unit and an electronic camera shake correcting unit has been proposed (see, for example, Patent Document 3). In this imaging apparatus, power consumption increases due to actuator driving for image stabilization in optical camera shake correction, and resolution deteriorates in order to cut out part of the output image of the image sensor in electronic camera shake correction. Considering this problem, select the optical image stabilization unit to reduce image quality degradation when zooming and shooting distant scenery, and select the electronic image stabilization unit as image quality degradation is not noticeable for wide-angle shooting. It is configured to reduce power consumption. Also, if the amount of high-frequency component of camera shake exceeds a predetermined value, the optical camera shake correction unit is selected to suppress the deterioration of the image quality, and if it is less than the predetermined value, the image quality deterioration is not noticeable, so the electronic camera shake correction unit is selected. Thus, the power consumption is reduced. However, in the camera shake correction method in which the camera shake correction means is selectively selected according to the focal length or the amount of high frequency component of the camera shake in this way, the correction range of the camera shake correction cannot be expanded. When shooting a distant landscape by zooming in, only the optical camera shake correction unit operates, so due to the restriction of the correction angle, it is not possible to sufficiently eliminate camera shake on large undulations due to walking. Let's go.

JP 2000-75337 A JP 2004-266322 A JP-A-7-123317

  An object of the present invention is to provide an excellent image processing apparatus, image processing method, and imaging apparatus capable of suitably processing image information captured using a solid-state imaging device or the like.

  A further object of the present invention is to suitably correct camera shake that occurs when a user performs a shooting operation of a digital camera with one hand, and furthermore, shake that has a large amplitude that occurs when a photographer takes a picture with a video camera while walking or the like. It is an object of the present invention to provide an excellent image processing apparatus, image processing method, and photographing apparatus.

  A further object of the present invention is to provide an excellent image processing apparatus and image capable of correcting a large-amplitude shake by expanding a correction range using correction means suitable for low-frequency components and high-frequency components of camera shake frequency. A processing method and an imaging device are provided.

The present invention has been made in consideration of the above problems,
A shake detection unit that detects a shake applied to a camera shooting unit that shoots a subject;
A signal processing unit for processing a shake signal detected by the shake detection unit;
An optical correction amount calculation unit that calculates an optical correction amount based on a high frequency component of a blur signal processed by the signal processing unit;
An electronic correction amount calculation unit that calculates an electronic correction amount based on a low frequency component of a blur signal processed by the signal processing unit;
Optical correction means for performing optical correction on the camera photographing unit according to the optical correction amount;
Electronic correction means for performing electronic correction on an image captured by the camera photographing unit according to the electronic correction amount;
An image processing apparatus comprising:

  In a digital camera configured in a small size, camera shake tends to occur when a user performs shooting with one hand, and it is becoming essential to install a camera shake correction technique. However, in the optical correction method, camera shake exceeding a certain correction angle cannot be corrected due to optical and mechanical constraints, and in the electronic correction method, the high frequency component of the hand shake frequency due to the restriction of the update frequency standard. Cannot be corrected. That is, if only one of the correction methods is used, camera shake that cannot be removed remains.

  On the other hand, the image processing apparatus according to the present invention can dramatically improve the shake correction angle (beyond the limitation of the correction angle in the optical correction) by combining the optical correction unit and the electronic correction unit. it can. In addition, instead of simply combining the two correction means, a high-quality video is obtained by sharing the role of each correction process according to the frequency component of camera shake included in the photographed image.

  Camera shake typified by camera shake has a feature that the intensity of the low frequency component of the frequency is large and the intensity decreases as the frequency becomes high. Therefore, since a blur component having a high frequency has a relatively low intensity, it can be corrected without deterioration of a captured image due to an exposure time or the like by correcting with an optical correction unit. On the other hand, the blur component having a low frequency (within the update frequency standard) is hardly deteriorated even when corrected by the electronic correction means, and is greatly increased when combined with the optical correction means. Since the correction angle can be obtained, sufficient correction is possible even when the blur intensity is large.

  ADVANTAGE OF THE INVENTION According to this invention, the outstanding image processing apparatus and image processing method which can process suitably the image information image | photographed using the solid-state image sensor etc., and an imaging device can be provided.

  In addition, according to the present invention, it is possible to provide an excellent image processing apparatus, image processing method, and photographing apparatus that can suitably correct a camera shake that occurs when a user performs a photographing operation of a digital camera with one hand. it can.

  Furthermore, according to the present invention, it is possible to provide an excellent image processing apparatus, image processing method, and photographing apparatus that can correct both the low-frequency component and the high-frequency component of the camera shake frequency.

  According to the image processing apparatus according to the present invention, since it is possible to achieve both a shake correction angle that has been dramatically expanded and a good quality image, even in situations where the camera shake is large such as when shooting with a video camera while walking, Image blur can be corrected.

  Other objects, features, and advantages of the present invention will become apparent from more detailed description based on embodiments of the present invention described later and the accompanying drawings.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a functional configuration of an image processing apparatus 100 according to an embodiment of the present invention. An example of the image processing apparatus 100 is a digital video camera using a solid-state image sensor such as a CCD or a CMOS.

  The illustrated image processing apparatus 100 includes a shake detection unit 101, a signal processing unit 102, an optical correction amount calculation unit 103, an image stabilization mechanism drive unit 104, an image stabilization mechanism 105, and an electronic correction amount calculation unit 106. In addition, the image pickup device 107, the image cutout unit 108, and the image interpolation unit 109 are provided, and a configuration including both an optical correction method and an electronic correction method for camera shake is employed.

  The shake detection unit 101 includes an element whose output signal changes according to shake, such as an angular velocity sensor, and a dedicated signal processing and amplification circuit. Alternatively, a temporal change amount of image information obtained from the image sensor may be used. Hereinafter, an example in which an angular velocity sensor is used for the shake detection unit 101 will be described. The shake detection signal from the shake detection unit 101 is output to the signal processing unit 102, which is a main component for realizing the present invention, and converted into a signal having frequency characteristics optimum for optical correction and electronic correction. And supplied to the optical correction amount calculation unit 103 and the electrical correction amount calculation unit 106, respectively.

  Camera shake typified by camera shake has a feature that the intensity of the low frequency component of the frequency is large and the intensity decreases as the frequency becomes high. On the other hand, the optical correction method cannot correct camera shake exceeding a certain correction angle due to optical and mechanical constraints, and the electronic correction method cannot reduce the camera shake frequency due to the restriction of the update frequency standard. High frequency components cannot be corrected.

  Therefore, in the present embodiment, the signal processing unit 102 extracts a high frequency component having a relatively low intensity from the shake detection signal input from the shake detection unit 101, and supplies the high frequency component to the optical correction amount calculation unit 103. By performing optical correction within optical and mechanical constraints, it is possible to correct the captured image without deterioration due to exposure time or the like. In addition, the signal processing unit 102 extracts a low-frequency component (such as being within the update frequency standard) from the shake detection signal, supplies the low-frequency component to the electronic correction amount calculation unit 106, and outputs the electronic component within the update frequency standard. By applying the correction, the captured image is not deteriorated. Note that the shake signal input from the shake detection unit 101 is an angular velocity, whereas the control amount in the subsequent optical correction and electronic correction is an angle. Therefore, the signal processing unit 102 converts the angular velocity signal into an angular signal. It is necessary to perform conversion to (integration processing).

  A blur signal consisting of a high-frequency component with relatively low intensity for optical correction output from the signal processing unit 102 is converted into an optical correction amount by the optical correction amount calculation unit 103, and then a vibration isolation mechanism. The anti-shake mechanism 105 is driven by the optical correction amount supplied to the drive unit 104 to remove the high-frequency component of camera shake. Note that the method of calculating the optical correction amount from the blur signal is well known in the art, and thus detailed description thereof is omitted in this specification.

  Here, the anti-vibration mechanism 105 includes, for example, an actuator including a magnet and a coil, and is arranged to drive an anti-vibration lens (not shown) that can move in a plane. The anti-vibration lens is interposed on the optical axis of a plurality of lens optical systems that couple the subject image to the imaging surface of the image sensor 107. Then, the anti-vibration mechanism driving unit 104 operates the anti-vibration lens by the anti-vibration mechanism 105 in accordance with the optical correction amount so that an image is formed at the same position on the imaging surface. Shake correction is applied.

  On the other hand, a blur signal composed of a low-frequency component for electronic correction, which is output from the signal processing unit 102, is supplied to the image clipping unit 108, and the position where the image projected on the imaging surface of the image sensor 107 is clipped at 108 is determined. Used to control. Since the output signal of the image cutout unit 108 is a signal that has been subjected to blur correction for each pixel of the image sensor 107, the subsequent image interpolation unit 109 performs processing such as inter-pixel interpolation, and then processes it as a video signal. Is done. Note that the method of calculating the electronic correction amount from the blur signal is well known in the art, and thus detailed description thereof is omitted in this specification.

  As described above, in the image processing apparatus 100 according to the present embodiment, the optical correction and the electronic correction are not used alternatively, but these correction methods are combined according to the frequency component of the camera shake, so that the optical processing is performed. A correction angle that is dramatically larger than the correction angle that depends on optical and mechanical constraints when using only mechanical correction can be obtained, so that even when the intensity of blurring is high, sufficient correction is possible. .

  FIG. 2 illustrates an internal configuration example of the signal processing unit 102.

  The analog detection signal supplied from the shake detection unit 101 is sampled into a discrete signal by the AD converter 201 to become a digital signal, and then subjected to processing such as offset correction by the signal processing preprocessing unit 202. Thereafter, the shake detection signal is branched into two and inputted to the high-pass filter (HPF) 203 and the low-pass filter (LPF) 206, respectively.

  The high-pass filter 203 extracts an optical correction signal composed of a high-frequency component having a relatively low intensity from the shake detection signal, and further passes the optical correction signal processing post-processing unit 204 to the optical correction amount calculation unit 103. Supplied. On the other hand, the low-pass filter 206 extracts an electronic correction signal composed of low-frequency components from the shake detection signal, and is further supplied to the electronic correction amount calculation unit 106 via the electronic correction signal processing post-processing unit 206. The

  The separation frequency control unit 205 extracts the cutoff (cutoff) frequency when the high-pass filter 203 extracts the optical correction signal from the shake signal, and the electronic correction signal from the shake signal by the low-pass filter 206. The cut-off frequency is adaptively controlled. The frequency characteristics of the high-pass filter 203 and the low-pass filter 206 change depending on the cutoff frequency calculated by the separation frequency control unit 205 while depending on each other in a complementary manner.

  In addition, since the detection signal input to the AD converter 202 from the shake signal detection unit 101 in the previous stage is an angular velocity, the control amount in the optical correction and the electronic correction is an angle. In the post-processing unit 204 and 207 electronic correction signal post-processing unit 207, it is necessary to time-integrate the angular velocity signals after passing through the filters 203 and 206 and convert them into angle signals.

  As described above, the optical correction amount calculation unit 103 subsequent to the signal processing unit 102 performs optical correction within optical and mechanical constraints, thereby correcting the captured image without deterioration due to exposure time or the like. Is possible. Moreover, the captured image is not deteriorated by being supplied to the electronic correction amount calculation unit 106 and performing electronic correction within the update frequency standard.

  FIG. 3 shows a modification of the signal processing unit 102 shown in FIG. In the illustrated example, the low-pass filter 206 is replaced with an adder 208, and the separation frequency control unit 205 supplies a cutoff frequency only to the high-pass filter 203.

  The analog detection signal supplied from the shake detection unit 101 is sampled into a discrete signal by the AD converter 201 to become a digital signal, and then subjected to processing such as offset correction by the signal processing preprocessing unit 202. Thereafter, the shake detection signal is branched into two, one being input to the high-pass filter (HPF) 203 and the other being input to the adder 208.

  The high-pass filter 203 extracts an optical correction signal composed of a high-frequency component having a relatively low intensity from the shake detection signal, and further passes the optical correction signal processing post-processing unit 204 to the optical correction amount calculation unit 103. Supplied. Further, the output of the high-pass filter 203 is also supplied to the other input terminal of the adder 208, and as a result of taking the difference from the original shake detection signal by the adder 208, the low frequency component of the shake detection signal is obtained. The electronic correction signal is extracted and supplied to the electronic correction amount calculation unit 106 via the electronic correction signal processing post-processing unit 206.

  The separation frequency control unit 205 adaptively controls the cutoff frequency when the high-pass filter 203 extracts the optical correction signal from the shake signal. Also in this case, the frequency characteristics in the optical correction and the electronic correction change depending on the cutoff frequency calculated by the separation frequency control unit 205 while depending on each other in a complementary manner.

  FIG. 4 shows another configuration example of the signal processing unit 102.

  The analog detection signal supplied from the shake detection unit 101 is sampled into a discrete signal by the AD converter 301 to become a digital signal, and then subjected to processing such as offset correction by the signal processing preprocessing unit 302. Thereafter, the shake detection signal is branched into two and input to the incomplete integration circuit 303 and the complete integration circuit 306, respectively.

  The detection signal input to the AD converter 202 from the shake signal detection unit 101 in the previous stage is the angular velocity, whereas the control amount in the optical correction and the electronic correction is the angle. The incomplete integration circuit 303 performs an incomplete integration process on the blur signal composed of the angular velocity component to extract an optical correction signal composed of a high frequency component having a relatively low intensity from the angle signal, and further optically This is supplied to the optical correction amount calculation unit 103 via the correction signal processing post-processing unit 204. Here, the incomplete integration is a low-pass filter, but it can also be regarded as a combination of the high-pass filter and complete integration (in any order). The blur signal consisting of angular velocity components is time-integrated into angular components. Thus, an optical correction signal composed of a high frequency component is extracted.

  Further, the complete integration circuit 306 performs complete integration processing on the blur signal composed of the angular velocity component to convert it into an angle signal. Furthermore, an electronic correction signal composed of a low frequency component is extracted from the angle signal by taking a difference from the output from the incomplete integration circuit 303 by the adder 308 in the subsequent stage, and further, an electronic correction signal processing post-processing unit This is supplied to the electronic correction amount calculation unit 106 via 206.

  The shake detection signal is sampled into a discrete signal by 301 “AD converter”, and then subjected to processing such as offset correction by 302 “signal processing preprocessing unit”. Thereafter, the signal is branched and transmitted to 303 “incomplete integration” and 306 “complete integration”, and the output signal of 303 is sent to 304 “post-processing unit for optical correction signal processing”, and the difference signal between the output of 306 and the output of 303 is sent. 307 “Electronic correction signal processing post-processing unit”. The frequency characteristic 303 changes depending on the cut-off frequency calculated by the 305 “cut-off frequency control unit”.

  The cut-off frequency control unit 305 adaptively controls the cut-off frequency when the incomplete integration circuit 303 extracts the optical correction signal from the shake signal. Also in this case, the frequency characteristics in the optical correction and the electronic correction change depending on the cutoff frequency calculated by the cutoff frequency control unit 305 while depending on each other in a complementary manner.

  As described above, the optical correction amount calculation unit 103 subsequent to the signal processing unit 102 performs optical correction within optical and mechanical constraints, thereby correcting the captured image without deterioration due to exposure time or the like. Is possible. Moreover, the captured image is not deteriorated by being supplied to the electronic correction amount calculation unit 106 and performing electronic correction within the update frequency standard.

  The present invention has been described in detail above with reference to specific embodiments. However, it is obvious that those skilled in the art can make modifications and substitutions of the embodiment without departing from the gist of the present invention.

  In the present specification, the embodiment applied to a digital video camera using a solid-state imaging device such as a CCD or CMOS has been mainly described. However, the gist of the present invention is not limited to this, and a photographed image is taken. The present invention can also be applied to various information processing apparatuses that process information. For example, only optical correction is applied at the time of shooting, but camera shake information taken at the time of shooting is recorded along with the video signal, and electronic correction is performed using the camera shake information at the time of reproduction output. The same effect can be obtained.

  In short, the present invention has been disclosed in the form of exemplification, and the description of the present specification should not be interpreted in a limited manner. In order to determine the gist of the present invention, the claims should be taken into consideration.

FIG. 1 is a diagram showing a functional configuration of an image processing apparatus 100 according to an embodiment of the present invention. FIG. 2 is a diagram illustrating an internal configuration example of the signal processing unit 102. FIG. 3 is a diagram showing a modification of the signal processing unit 102 shown in FIG. FIG. 4 is a diagram illustrating another configuration example of the signal processing unit 102.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 ... Image processing apparatus 101 ... Shake detection part 102 ... Signal processing part 103 ... Optical correction amount calculation part 104 ... Anti-vibration mechanism drive part 105 ... Anti-vibration mechanism 106 ... Electronic correction amount calculation part 107 ... Imaging element 108 ... Image Clipping unit 109 ... Image interpolation unit 201 ... AD converter 202 ... Signal processing pre-processing unit 203 ... High-pass filter (HPF)
204: Optical correction signal processing post-processing unit 205 ... Separation frequency control unit 206 ... Low-pass filter (LPF)
207 ... Electronic correction signal processing post-processing unit 208 ... Adder 301 ... AD converter 302 ... Signal processing pre-processing unit 303 ... Incomplete integration circuit 304 ... Optical correction signal processing post-processing unit 305 ... Cut-off frequency control unit 306 ... Complete integration circuit 307 ... Electronic correction signal processing post-processing unit 308 ... Adder

Claims (5)

A shake detection unit that detects a shake applied to a camera shooting unit that shoots a subject;
A signal processing unit for processing a shake signal detected by the shake detection unit;
An optical correction amount calculation unit that calculates an optical correction amount based on a shake signal processed by the signal processing unit;
An electronic correction amount calculation unit that calculates an electronic correction amount based on the blur signal processed by the signal processing unit;
Optical correction means for performing optical correction on the camera photographing unit according to the optical correction amount;
Electronic correction means for performing electronic correction on an image captured by the camera photographing unit according to the electronic correction amount;
An image processing apparatus comprising: The optical correction amount calculation unit calculates an optical correction amount based on a high frequency component of a blur signal processed by the signal processing unit,
The electronic correction amount calculation unit calculates an electronic correction amount based on a low frequency component of a blur signal processed by the signal processing unit,
The image processing apparatus according to claim 1. The signal processing unit further includes means for variably controlling a frequency characteristic for separating the shake signal into a high frequency component for optical correction amount calculation and a low frequency component for electronic correction amount calculation.
The image processing apparatus according to claim 2. A shake detection step for detecting a shake applied to a camera photographing unit for photographing a subject;
A signal processing step for processing the shake signal detected in the shake detection step;
An optical correction is calculated based on the high frequency component of the blur signal processed in the signal processing step, and supplied to an optical correction means for performing optical correction on the camera photographing unit. A quantity calculation step;
An electronic correction amount is calculated based on the low-frequency component of the blur signal processed in the signal processing step, and is supplied to an electronic correction unit for performing electronic correction on a photographed image by the camera photographing unit. An electronic correction amount calculating step;
An image processing method comprising: A camera shooting unit for shooting the subject;
A shake detection unit that detects a shake applied to the camera photographing unit;
A signal processing unit for processing a shake signal detected by the shake detection unit;
An optical correction amount calculation unit that calculates an optical correction amount based on a high frequency component of a blur signal processed by the signal processing unit;
An electronic correction amount calculation unit that calculates an electronic correction amount based on a low frequency component of a blur signal processed by the signal processing unit;
Optical correction means for performing optical correction on the camera photographing unit according to the optical correction amount;
Electronic correction means for performing electronic correction on an image captured by the camera photographing unit according to the electronic correction amount;
An imaging apparatus comprising:

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