JP2773404B2 - Motion detection circuit and camera shake correction device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motion detection circuit that performs motion detection and a camera shake correction device that performs camera shake correction.

2. Description of the Related Art Conventional image stabilization devices include, for example, TV Society Journal Vol.
44 No. 2 (1990) or JP-A-62-288336.

FIG. 10 is a block diagram of a conventional camera shake correction apparatus, in which 1001 is a lens, and 1002 is a normal lens.
A wide-area image sensor having an area wider than the imaging area of the image sensor that obtains a TV signal, 1003 is a drive circuit for driving the image sensor 1002, 1004 is a drive control circuit for controlling the drive circuit 1003, 10
05 is an A / D conversion circuit, 1006 is a motion detection circuit for detecting a motion amount (hereinafter referred to as a motion vector), 1007 is a motion correction control circuit for obtaining motion correction data from the motion vector, and 1008 is a signal processing circuit.

In the conventional camera shake correction apparatus configured as described above, subject information passes through the lens 1001, is converted into an electric signal by the image sensor 1002, is converted into a digital signal by the A / D conversion circuit 1005, and is detected by the motion detection circuit 1006. And input to the signal processing circuit 1008. The motion detection circuit 1006 compares two fields of video signals to detect a motion vector, and the motion correction control circuit 1007 uses the motion vector to create motion correction data required for camera shake correction. Using the motion correction data, the drive control circuit 1004 controls the drive circuit 1003 so as to obtain a cut-out signal from the image sensor 1002 in which camera shake has been corrected. Then, the signal processing circuit 1008 performs signal processing of the cut-out video signal from the imaging element 1002.

The driving of the image sensor at this time will be described with reference to FIG. The size of the imaging element in the drawing, i.e. the photoelectric conversion area is a (vertical V0) × (horizontal H _0). The video area from which the actual video signal is read is (V ₁ × H ₁ ) shown in the motion-corrected imaging area (1) or (V ₂ × H 2) shown in the motion-corrected imaging area (2). This is because, in order to correct a motion component caused by camera shake or the like, an imaging area from which the motion component has been removed is obtained on the photoelectric conversion area of the image sensor.

Here, regarding driving in the case of a CCD as an image sensor,
A brief description will be given. The CCD includes a charge storage unit and a charge transfer unit. The charge stored in the charge storage unit such as a photodiode is transferred to a vertical charge transfer unit by a charge transfer signal. Thereafter, the vertical transfer is performed by the vertical transfer signal, and the charges reach the horizontal charge transfer unit. Further, horizontal transfer is performed by the horizontal transfer signal, and the signal is output. At this time, the vertical transfer signal is controlled to determine a vertical area to be read from the image sensor. Further, a horizontal area to be read from the image sensor is determined by controlling a horizontal transfer signal or by recording an output signal in a line memory and controlling the line memory.

SUMMARY OF THE INVENTION However, in the above-described configuration, an image sensor having a photoelectric conversion area wider than an actual imaging area is required for performing motion correction, so that the camera shake correction apparatus becomes expensive and large. There was a problem that.

As another method of performing motion correction, there is a method using an image sensor having a photoelectric conversion region substantially equal to a photoelectric conversion region necessary for obtaining a normal TV signal. This is a method in which a signal in a partial area is cut out from the image sensor and enlarged later by digital signal processing. In addition, in this method, even when an image sensor having a photoelectric conversion area wider than the actual image sensing area is used to perform motion compensation, a signal in a partial area is cut out from the image sensor by drive control of the image sensor, and a digital signal is generated later. The same applies to the case where an electronic zoom function for enlarging by processing is provided. The following is a method for detecting the amount of motion in this case.

(1) The amount of camera shake is detected using a sensor or the like, and the image sensor is controlled. However, since this configuration requires a sensor, there is a problem that the camera shake correction device is expensive and large.

(2) The amount of camera shake is detected by signal processing from the output signal of the image sensor, and the image sensor is controlled. However, in this configuration, the reading position of the image sensor changes depending on the amount of camera shake,
The output signal of the image sensor becomes discontinuous and the amount of camera shake cannot be detected. In addition, since a field memory is required to detect the amount of camera shake, there is a problem that the camera shake correction device becomes expensive and large.

In view of the foregoing, the present invention provides a detection circuit that detects a motion amount from an output signal of an image sensor using an image sensor whose vertical region size of a signal readout region from the image sensor is equal to or smaller than the photoelectric conversion region size of the image sensor. It is another object of the present invention to provide a camera shake correction apparatus capable of performing camera shake correction by creating camera shake correction data from the detection output.

Means for Solving the Problems In order to achieve the above object, a motion detection circuit according to the present invention comprises:
An image sensor, a drive circuit of the image sensor, a drive control circuit for controlling signal readout from the image sensor, and a field of an intermittent signal having a period in which an output signal of the image sensor is stopped according to control of the drive control circuit. A relative operation circuit for obtaining a motion amount by relative comparison.

Alternatively, in addition to the above configuration, a correlation operation control circuit that controls a relative comparison position between the next fields using the motion amount obtained by the correlation operation circuit is provided.

Further, in the camera shake correction apparatus according to the present invention, the image pickup device, a drive circuit of the image pickup device, a drive control circuit for controlling the drive circuit of the image pickup device, and an output signal of the image pickup device stopped according to the control of the drive control circuit A relative operation circuit for obtaining a motion amount by a relative comparison between fields of an intermittent signal having a period, a motion correction control circuit for obtaining motion correction data required for motion correction from the obtained motion amount, and an interpolation operation for an output signal of an image sensor And an electronic zoom circuit for enlarging the electronic zoom circuit. The motion control circuit controls the drive control circuit and the electronic zoom circuit.

Operation According to the present invention, the amount of motion is obtained from the output signal of the image sensor, the image sensor is driven in accordance with the amount of motion, and the image sensor output signal is enlarged to obtain a shake-free image without camera shake.

Embodiment 1 FIG. 1 is a block diagram of a camera shake correction apparatus according to a first embodiment of the present invention. In the figure, 100 is a motion detection circuit, 101 is a lens, 102 is an image sensor, 103 is a drive circuit of the image sensor 102, 104 is a drive control circuit that controls the drive circuit 103, 105 is an analog / digital conversion circuit (hereinafter, referred to as A / D circuit), 106 is an intermittent signal correlation operation circuit for detecting a motion amount from an image signal having an intermittent portion from the image sensor 102 (hereinafter, referred to as an intermittent signal), and 107 is obtained by the intermittent signal correlation operation circuit 106 A correlation operation control circuit that creates a control signal necessary for the next correlation operation from the amount of motion, a motion compensation control circuit that creates motion compensation data from the amount of motion obtained by the intermittent signal correlation operation circuit 106, and an A / D 109 A signal processing circuit that processes an output signal of the circuit 105, and an electronic zoom circuit 110 that enlarges an intermittent signal from the image sensor 102 by digital signal processing.

The operation of the image stabilizing apparatus according to the present embodiment configured as described above will be described below. The output signal of the image sensor 102 is converted into a digital signal by the A / D circuit 105 and input to the signal processing circuit 109 and the intermittent signal correlation operation circuit 106. The intermittent signal correlation operation circuit 106 obtains a motion vector from a correlation between two field signals from an input signal which is an intermittent signal. From this motion vector, the correlation operation control circuit 107
Now, create the correlation operation control signal required for the next correlation operation,
The motion compensation control circuit 108 creates motion compensation data necessary for motion compensation. Using the correlation operation control signal, the intermittent signal correlation operation circuit 106 performs representative point position control and intermittent signal control necessary for obtaining the next motion vector. The drive control circuit 104 performs vertical motion compensation using the motion compensation data, the electronic zoom circuit 110 performs enlargement processing by interpolation calculation and horizontal motion compensation, and the signal processing circuit 109 performs vertical, horizontal compensation and enlargement. It performs color separation control and the like accompanying the processing. Since the read start position from the image sensor changes due to the vertical and horizontal corrections, when the image sensor 102 uses a color filter, the color filter at the read start position also changes. Therefore, it is necessary to support color separation according to the color filter at the read start position. By these processes, the intermittent signal from the image sensor 102 is enlarged to become a motion-compensated video signal.

Next, the vertical correction of the image sensor 102 shown in FIG. 1 will be described with reference to FIG. In FIG. 2, the entire photoelectric conversion area of the image sensor is (V0 × H0), and the image sensor cut-out area subjected to the vertical motion correction is (V1 × H0). The image sensor cut-out area (V1 × H0) cut out in the vertical direction in this manner is subjected to horizontal motion correction by the electronic zoom circuit 109, and the image pickup area (V1 × H1) whose motion is corrected in the vertical and horizontal directions is enlarged. And the entire original photoelectric conversion area (V0 ×
H0). The electronic zoom circuit 109
Has a 1H line memory for vertical interpolation interpolation processing, and performs a horizontal correction operation by controlling reading of the 1H line memory.

FIG. 3 shows drive signals and output signals of the image sensor at this time. In FIG. 3, VD is a vertical start signal. As shown in FIG. 2, the vertical signal in the V1 period is read out in the vertical direction according to the zoom magnification in the subsequent electronic zoom circuit 109 in order to obtain an enlarged vertical signal corresponding to the V0 period by the interpolation enlargement processing. Must be stopped, and an intermittent control signal (hereinafter, referred to as VCTRL) is a signal for controlling this reading. For example, when the zoom magnification is 1.2, in order to obtain a signal of six lines from a signal of five lines in the vertical direction, it is necessary to stop reading one line after reading five lines. The charge transfer signal (Qp) is a signal for transferring charges from a charge storage unit such as a photodiode to a charge transfer unit such as a CCD, the V transfer signal (Vp) is a vertical transfer signal,
The H transfer signal (Hp) is a horizontal transfer signal, and the V-BLK signal is a vertical erase signal.

At this time, as shown in FIG. 2, in order to set the image pickup region for motion compensation to be V1, the high-speed transfer of the V2 region is performed in the T1 period, and the high-speed transfer of the V3 region is performed in the T2 period, as indicated by the Vp signal. I do. Further, in the transfer of the V1 area, the input of the Vp signal and the Hp signal is stopped when the reading is stopped during the VCTRL signal generation period.

By performing the drive control as described above, the CCD output signal is output from the n-th line, which is the start address of the V1 region, and becomes an intermittent signal in which the output is stopped during the VCTRL signal generation period.

Next, the high-speed transfer control in the periods T1 and T2 shown in FIG. 3 will be described with reference to FIG. In FIG.
(A), (B), and (C) show the motion-correction imaging device clipping region V1, the former high-speed transfer region V2, the latter high-speed transfer region V3, the representative point, and the representative point position L ₀ (or three consecutive field periods). γ), the comparison area, and the detected vertical motion vector ΔYn (n = 1, 2, 3,...).

First, in (A), V2 = α, V3 = β, L ₀ = α + γ, and the detected vertical motion vector = ΔY1. Next, in (B), in order to maintain the relationship between the subject image and the representative point and the comparison area on the screen (A), it is necessary to set L ₀ = α + ΔY 1 + γ using the detected vertical motion vector ΔY 1. For that purpose, V2 = α + ΔY1, V3 = β−ΔY
It becomes 1. The detected vertical motion vector is ΔY2
It is. Similarly, in (C), to maintain the relationship between the subject image and the representative point and the comparison area on the screen (B), L ₀ = α using the detected vertical motion vector ΔY2.
+ ΔY1 + ΔY2 + γ. For that purpose, V2 = α + ΔY1 + ΔY2, V3 = β−ΔY1−ΔY2.
The detected vertical motion vector is ΔY3. Since the signal output from the image sensor in this manner is a signal of the motion-corrected image sensor clipping region V1 that has been motion-corrected,
In order to perform matching (here, representative point matching), it is necessary to change the representative point position and the high-speed transfer area according to the detected motion vector.

Next, a method of obtaining a motion vector from an output signal obtained by the above-described drive control of the image sensor will be described with reference to FIGS. FIG. 5 shows an example of the configuration of the intermittent signal correlation operation circuit 106 shown in FIG. In the figure, reference numeral 501 denotes a representative point memory for storing a video signal at a representative point, reference numeral 502 denotes a representative point memory control circuit for controlling the representative point memory 501, and reference numeral 503 denotes a discontinuous intermittent signal which is an input signal and a representative point memory. Subtracter for obtaining the difference signal from the output signal from 501, 5
04 is a cumulative operation memory for storing the output signal of the subtractor 503, 5
05 is a cumulative operation memory control circuit that controls the cumulative operation memory 504, and 506 is a correlation value detection circuit that obtains a correlation value from an output signal of the cumulative operation memory 504.

The operation of the intermittent signal correlation operation circuit thus configured will be described below. Representative point memory control circuit 50
2 and the accumulated operation memory control circuit 505 using the above-described intermittent control signal (VCTRL) the representative point position signal (L ₀ or gamma), the address signals necessary to control the representative point memory 501 and the cumulative operation memory 504 (ADRS1, ADRS2) and write control signals (WERE1, WERE2). Each signal described above at this time will be described with reference to FIG. In FIG. 6, the signals of VD, VCTRL, Vp, Hp, V-BLK and CCD output are the same as the signals shown in FIG. HD is the horizontal start signal, and the V direction counter output signal (VCO) is the reference counter output in the V direction. Here, VD (“H” period)
Is a reset signal, and the HD signal is a CLK signal. Below, A
DRS1, WERE1, ADRS2 and WERE2 are the signals shown in FIG. However, WERE1 and WERE2 are in a write operation state when the level is “L”.

The operation of each of the above signals will be described below, focusing on the differences from FIG. The CCD output signal is output from the nth line during the high-speed transfer period T1, and when the VCTRL signal is generated, the vertical transfer and the horizontal transfer are stopped, and the CCD output is stopped. In this field, the positions of the representative points are the (m) th line and the (m +) line after VD changes to “L”.
5) It is located on the line, and the comparison area is five lines around the representative point.

At this time, during the VCTRL generation period (“H” period), C
The update of the counter is stopped by masking HD which is the LK signal. By using this VCO signal and VCTRL signal, ADRS1
, And ADRS2 stop updating the counter when VCTRL occurs, and WERE1 and WERE2 stop the writing operation when VCTRL occurs. Is going.

In the present embodiment as described above, in the motion vector detection circuit and the motion correction device by matching the output signal of the image sensor using an image sensor whose photoelectric conversion area is substantially equal to the area necessary for obtaining a TV signal, By providing the high-speed transfer drive and readout stop drive circuit and the intermittent signal correlation calculation circuit using the representative point position information and the readout stop information, it is possible to detect an accurate motion vector and perform accurate motion correction. .

Further, the motion vector obtained in the present embodiment can be used not only for motion compensation such as camera shake, but also for processing using motion information such as a motion adaptive apartment, a motion adaptive noise reducer, and the like. Here, the camera shake correction device has a configuration including a motion vector detection circuit, and thus the description of the camera shake correction device will be given as a representative.

Further, in the present embodiment, the case where the motion vector is continuously obtained in each field is shown. However, in order to obtain only the motion vector between specific fields, the motion vector detection circuit may be configured not to have the correlation operation control circuit. . In this case, it is conceivable to obtain a high-quality video signal from a two-field signal motion-compensated using the obtained motion vector.

FIG. 7 is a block diagram showing a configuration example of an intermittent signal correlation calculation circuit of a camera shake correction apparatus according to a second embodiment of the present invention. In the figure, 701 to 706 are 501 to 5 shown in FIG.
This is similar to 06, except for an FLT circuit 707 that extracts a frequency component necessary for detecting a motion vector from an input signal, and an FLT control circuit 708 that controls the FLT circuit 707.

The operation of the intermittent signal correlation operation circuit having such a configuration will be described below, focusing on the differences from FIG.
Since the FLT circuit 707 is composed of LPF, HPF or BPF circuits in the horizontal and vertical directions, like the representative point memory and the accumulation operation memory described in FIG. 5 of the first embodiment, the image sensor output signal Vin so they performed even accurate FLT operate in an intermittent signal, FLT control circuit using an intermittent control signal VCTRL the representative point position signal (L ₀ or gamma), forming an address signal ADRS3, and the write control signal WERE3, FLT Control the circuit. Thereafter, the output signal of the FLT circuit performs a representative point matching operation in the same manner as in FIG.

As described above, according to the present embodiment, the FLT circuit is provided, and the FLT control circuit is provided so that the FLT circuit corresponds to the intermittent signal, thereby extracting a frequency component necessary for motion vector detection from the input signal. Thus, accurate motion vector detection and camera shake correction can be performed.

FIG. 8 is a schematic diagram showing the operation of an image sensor of a camera shake correction apparatus according to a third embodiment of the present invention. The difference between FIG. 2 and FIG. 2 which is the schematic diagram of the operation of the image pickup device in the first embodiment is that the image pickup device cut-out area in which the motion is corrected in the vertical and horizontal directions is (V1 × H1). The point is that the element cutout area is enlarged and becomes equal to the size of the entire original photoelectric conversion area (V0 × H0). As described above, since the vertical and horizontal correction processes are performed in the image pickup device area, the electronic zoom circuit performs only the enlargement process without performing the horizontal correction process.

The configuration of the electronic zoom circuit at this time has a 1H line memory for vertical interpolation and enlargement processing, but a circuit that performs special read control on the 1H line memory because it does not perform horizontal correction operation. I do not have.

FIG. 9 shows the image sensor drive signal and the image sensor output signal at this time. The difference from FIG. 3 and FIG. 3 which is a schematic diagram of the image pickup device driving in the first embodiment is that a high-speed transfer period T3 in the horizontal direction exists within the 1H horizontal scanning period, and The point is that control similar to the direction is performed. Less than,
The description of FIG. 9 will be centered on the differences from FIG.

As shown in FIG. 8, the image sensor cutout area is set to (V1 ×
To set H1), first, as shown by the Vp signal, high-speed vertical transfer in the V2 area is performed during the T1 period, and high-speed vertical transfer is performed in the V3 area during the T2 period. In addition, even when transferring in the V1 area, VC
When reading is stopped during the TRL signal generation period, input of the Vp and Hp signals is stopped. Next, as shown in the Hp signal,
The horizontal high-speed transfer of the H3 area is performed during the T3 period.

By performing the drive control as described above, the CCD output signal becomes the n-th line, which is the start address of the (V1 × H1) area,
A signal is output from the m-th pixel, and becomes an intermittent signal in which the output stops during the VCTRL signal generation period.

As described above, according to the present embodiment, high-speed transfer driving in the vertical and horizontal directions and driving to stop reading by VCTRL are performed as image sensor driving, and vertical and horizontal motion correction is performed in the image sensor region. . Therefore, an electronic zoom circuit having no special 1H memory readout circuit for horizontal motion correction can be configured, and the camera shake correction device can be configured with a simple circuit.

In this embodiment, the photoelectric conversion region of the image sensor is
The case where it is almost equal to the area necessary for obtaining the signal is shown,
Even when the photoelectric conversion area is wider than the area necessary for obtaining the TV signal, when the electronic zoom is realized by the image sensor drive control and the interpolation control by the signal processing, the image sensor output signal is intermittent as in the present embodiment. Signal, and a high-speed transfer drive and readout stop drive circuit of the image sensor and an intermittent signal correlation operation circuit using representative point position information and readout stop information are provided, so that an accurate motion vector is detected and accurate motion correction is performed. It can be performed.

In the above embodiment, the case where both the T1 period and the T2 period are controlled in accordance with the amount of motion as the vertical high-speed transfer drive of the image sensor is described, but in the T2 period, transfer of a certain number of lines or more according to the zoom magnification is performed. Therefore, a configuration may be employed in which the required maximum number of lines is fixed so as to be transferred and does not change depending on the movement amount.

In the above embodiment, the case where the CCD output signal is used as the intermittent signal has been described. However, it is also possible to detect a motion vector using the above-described intermittent signal correlation operation circuit for an intermittent signal from another signal source. It is.

In the above embodiment, the electronic zoom circuit has only been described with a simple circuit configuration. However, the present invention is not limited to such a circuit configuration, and other configurations using a memory and digital signal processing may be used.

Further, in the above-described embodiment, the case where the output signal from the image sensor is subjected to color separation by the signal processing circuit has been described. However, R, G, and B signals are output from the image sensor, and motion correction is performed on each signal. Alternatively, the position of the electronic zoom circuit is not limited to the position after the signal processing circuit.

Further, the amount of motion is obtained by the matching method as shown in the above embodiment, and a configuration having a simple sensor for judging whether the camera shake or the movement of the subject may be employed, or the amount of motion is obtained by both the matching method and the sensor. A configuration may be used.

Effects of the Invention As described above, according to the present invention, by providing a high-speed transfer drive and readout stop drive circuit for an image sensor and an intermittent signal correlation operation circuit using representative point position information and readout stop information, A motion detection circuit and an image stabilization device using an image sensor whose conversion area is substantially equal to the area necessary for obtaining a TV signal can also detect an accurate motion vector and perform accurate motion correction, and the effect is large. .

[Brief description of the drawings]

FIG. 1 is a block diagram of a motion detection circuit and a camera shake correction device according to a first embodiment of the present invention, FIG. 2 is a schematic diagram for explaining the operation of the image sensor of the embodiment, and FIG. FIG. 4 is a timing chart for explaining a driving operation of the image pickup device of the example, FIG. 4 is a schematic diagram for explaining a motion vector detecting operation of the embodiment, and FIG. 5 is a diagram of an intermittent signal correlation operation circuit of the embodiment. FIG. 6 is a timing chart for explaining the operation of the image sensor driving and intermittent signal correlation operation circuit of the embodiment, and FIG. 7 is a motion detection circuit and a camera shake correction device of the second embodiment of the present invention. FIG. 8 is a block diagram of the intermittent signal correlation operation circuit of FIG.
FIG. 9 is a schematic diagram for explaining the operation of the image sensor of the motion detection circuit and the camera shake correction apparatus according to the embodiment; FIG. 9 is a timing chart for explaining the driving operation of the image sensor according to the embodiment;
FIG. 10 is a block diagram of a conventional camera shake correction device, and FIG. 11 is a schematic diagram for explaining the operation of an image sensor of the conventional camera shake correction device. 101 ... Lens, 102 ... Image sensor, 103 ... Drive circuit, 1
04: Drive control circuit, 105: A / D conversion circuit, 106: Intermittent signal correlation operation circuit, 107: Correlation operation control circuit, 108:
... Motion correction control circuit, 109 ... Signal processing circuit, 110 ... Electronic zoom circuit.

Claims (9)

(57) [Claims] An image pickup device for converting optical information of a subject into an electric signal; a drive circuit for driving the image pickup device; a drive control circuit for controlling signal reading from the image pickup device;
A correlation operation circuit for obtaining a motion amount by a relative comparison between fields of an intermittent signal having a period in which the output signal of the image sensor stops under the control of the drive control circuit. 2. An image pickup device for converting optical information of a subject into an electric signal, a drive circuit for driving the image pickup device, a drive control circuit for controlling signal reading from the image pickup device,
A correlation operation circuit that obtains a motion amount by a relative comparison between fields of an intermittent signal having a period in which the output signal of the image sensor stops under the control of the drive control circuit, and a motion amount obtained by the correlation operation circuit. And a correlation operation control circuit for controlling a relative comparison position between the next fields. 3. The motion detection circuit according to claim 1, wherein the correlation operation circuit determines the amount of motion when the input signal is a discontinuous intermittent signal and invalidates the intermittent signal and uses the other part as a valid continuous signal. 4. A correlation operation circuit comprising: a representative point memory for storing a video signal at a representative point from a discontinuous intermittent signal; a representative point memory control circuit for controlling the representative point memory; 4. The motion detection circuit according to claim 1, further comprising an accumulation operation memory for storing a difference signal from an output signal of the representative point memory, and an accumulation operation memory control circuit for controlling the accumulation operation memory. 5. The motion detection circuit according to claim 1, wherein the correlation operation circuit includes a filter circuit for extracting a frequency component necessary for motion amount detection from the discontinuous intermittent signal. 6. The motion detection according to claim 4, wherein the representative point memory control circuit and the cumulative operation memory control circuit stop updating the memory control address and stop the writing operation during a period when the output signal of the image sensor is discontinuous. circuit. 7. The motion detection circuit according to claim 5, wherein the filter circuit stops updating the memory control address in the filter circuit and stops the writing operation during a period in which the output signal of the image sensor is discontinuous. 8. An image pickup device for converting optical information of a subject into an electric signal, a drive circuit for driving the image pickup device, a drive control circuit for controlling the drive circuit, and a control circuit for controlling the drive control circuit. A correlation operation circuit for obtaining a motion amount by a relative comparison between fields of an intermittent signal having a period in which an output signal of the image sensor stops, a motion correction control circuit for obtaining motion correction data necessary for motion correction from the obtained motion amount, An electronic zoom circuit for enlarging an output signal of the image pickup device by interpolation and controlling the drive control circuit and the electronic zoom circuit by the motion correction control circuit; 9. The control of the drive control circuit causes the vertical area size of the signal read area from the image sensor to be equal to or smaller than the vertical size of the photoelectric conversion area of the image sensor, and the read start position of the output signal from the image sensor to change. 9. The camera shake correction apparatus according to claim 8, wherein the output signal from the image sensor is a discontinuous intermittent signal having a period during which the signal output is stopped.