JP2941815B2 - Imaging device and blur correction device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an imaging device having a function of correcting image blur caused by vibration of the device.

[Conventional technology]

2. Description of the Related Art Conventionally, when photographing with a camera, camera shake has been a major problem as a cause of photographing failure. In addition, camera shake can be relatively prevented if a still image is shot, since the shooting is instantaneous, but in recent years, video cameras and the like that have been rapidly spreading with the development of video equipment have been used to shoot moving images. This is a prerequisite, and moreover, hand-held shooting is more common with miniaturization, and camera shake can be said to be a very important problem that deteriorates the monitor screen and the playback screen.

On the other hand, there has been proposed a method of detecting the camera shake and automatically moving the lens system in a direction to cancel the camera shake. As these methods, a camera shake is detected by using a rotating gyroscope or an acceleration sensor attached to the camera, and a lens system or the like is moved by an actuator according to the amount of the shake to correct the camera shake, and a method of correcting the camera shake. It is conceivable to analyze the output video signal to detect image blur, control an actuator that moves the lens system, and correct the blur.

[Problems to be solved by the invention]

However, it is difficult to obtain satisfactory ones in terms of characteristics such as responsiveness, accuracy, and sensitivity by using only the external sensor such as the rotary gyroscope and the acceleration sensor, and the latter method requires an external sensor. However, since the detected motion information is relative motion information between the subject and the camera, depending on the image pattern, whether the motion of the image is due to camera shake or the like, There is a problem that it is difficult to determine whether the object is an object, and an error easily occurs depending on a subject.

[Means for solving the problem]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems. According to the invention described in claim (1), a sensor attached to the device physically detects motion information of the device. 1 motion detecting means, second motion detecting means for detecting motion information at a plurality of positions in a screen from a photographing signal, and the plurality of motion information in an image signal detected by the second motion detecting means. Calculating means for calculating motion correction information based on the motion information having the same motion direction as the motion information detected by the first motion detecting means; and calculating the motion of the image in accordance with the output of the calculating means. An image pickup apparatus including a correction unit for performing correction.

According to the invention described in claim 2 of the present application, the motion vector of the device physically detected by the sensor attached to the device and the motion vector at a plurality of positions in the screen detected from the imaging signal. And calculating means for calculating the motion correction information from, based on the output of the calculating means,
Motion compensating means for compensating the motion of the image due to the motion of the device, wherein the calculating means is substantially the same as the motion vector of the device among the motion vectors at a plurality of positions in the screen detected from the image signal. When the number of motion vectors having the same direction of motion is less than or equal to a predetermined value, it is determined that the motion of the subject is larger than the motion of the camera, and the motion vector of the device is used as the motion correction information. A shake correction device configured to output the output to the means.

According to the invention described in claim 3 of the present application, a motion vector of a device physically detected by a sensor attached to the device and a motion vector at a plurality of positions in a screen detected from an image signal. And calculating means for calculating the motion correction information from, based on the output of the calculating means,
Motion compensating means for compensating the motion of the image due to the motion of the device, wherein the calculating means is substantially the same as the motion vector of the device among the motion vectors at a plurality of positions in the screen detected from the image signal. When the number of motion vectors having the same direction of motion is equal to or greater than a predetermined value, it is determined that the motion of the subject is smaller than the motion of the camera, and a plurality of positions in the screen detected from the imaging signal are determined. Wherein the average value of the motion vectors in which the direction of the motion is substantially the same as the motion vector of the device is output to the motion correction means as the motion correction information. It is characterized by.

Further, according to the invention described in claim (4) of the present application, the motion vector of the device physically detected by the sensor attached to the device and the motion vector at a plurality of positions in the screen detected from the imaging signal. And a motion correcting means for correcting the motion of the image based on the output of the calculating means, wherein the calculating means calculates the motion at a plurality of positions detected from the imaging signal. Among the vectors, the number of motion vectors in the direction substantially the same as the motion vector of the device is within a predetermined range, and among the motion vectors at a plurality of positions in the center of the screen detected from the image pickup signal, If the number of motion vectors in substantially the same direction as the center motion vector is equal to or greater than a predetermined number, the motion correction information is performed based on the motion vector at the center of the screen. And outputs the motion vector to the motion correcting means, and among a plurality of motion vectors at a plurality of positions at the center of the screen detected from the image pickup signal, the number of motion vectors in the substantially same direction as the motion vector at the center of the screen is a predetermined number. In the following case, among the motion vectors at the plurality of positions detected from the imaging signal, an average value of motion vectors in a direction substantially the same as the motion vector of the device is used as the motion correction information. A shake correction device configured to output the output to the means.

According to the invention described in claim (5) of the present application, a motion vector of a device physically detected by a sensor attached to the device and a motion vector at a plurality of positions in a screen detected from an image signal. Calculating means for calculating the motion correction information from the above, a motion correcting means for correcting the motion of the image based on the output of the calculating means, and panning is being performed when the direction of the motion vector of the device does not change for a predetermined time or more. Panning control means for detecting
The arithmetic means, among the motion vectors at a plurality of positions detected from the image signal, the number of motion vectors having substantially the same direction of motion as the motion vector of the device is within a predetermined range, and When the number of motion vectors having substantially the same direction of motion as the motion vector at the center of the screen among the motion vectors at a plurality of positions in the center of the screen detected from the imaging signal is equal to or more than a predetermined number, the panning control is performed. It is characterized by a shake correction device configured to inhibit the operation of the means.

〔Example〕

Hereinafter, an embodiment of an imaging apparatus according to the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing a basic configuration of a blur correction system for an imaging measure according to the present invention.

In FIG. 1, an image sensor 101 such as a CCD and the image sensor
The motion vector of the camera itself is detected by the motion vector extraction 102 of the image which extracts the motion vector of the image from the output imaging signal of 101, while the external sensor 106 and the external sensor 1 are detected.
The camera motion information detecting unit 107 which detects the motion information of the camera based on the output of 06 detects its own motion vector, and expresses the blur component of the image by the vector comparing unit 103 which compares and evaluates these motion vectors. A motion vector is calculated, and a blur correction signal 10 for canceling a motion vector representing image blur by a blur correction signal generation unit 104.
4 is output, and the lens system is moved by the shake correction unit 105 in the direction of correcting the shake.

FIG. 2 is a block diagram showing an embodiment in which a blur correction system in the image pickup apparatus according to the present invention is embodied, and comprises a camera section A, a lens state detecting section, a blur correction signal generating section and a correcting section D. I have.

In the camera section A, reference numeral 1 denotes a photographing lens system that includes a photographing lens, and forms a subject image on an image captured by an image sensor described later. 2 denotes an electric signal representing the subject image formed on the imaging surface by the photographing lens system 1. An image pickup device 3 such as a CCD, for example, is a camera signal processing circuit that reads an electric signal output from the image pickup device, performs predetermined signal processing, and outputs a luminance signal Y, a color signal C, and the like.

In the lens state detecting unit B, 11 is an angular velocity sensor attached to the camera (the attached state is not shown),
Reference numeral 12 denotes a sensor signal processing circuit that performs predetermined signal processing on the output of the angular velocity sensor 1 and outputs angular velocity information in accordance with the detected camera shake amount, and 16 denotes a lens signal when the lens system includes a zoom lens. This is a zoom encoder that detects focal length information by zooming.

In the shake correction signal generator C, reference numeral 4 denotes an A / D converter for converting a video signal output from the camera signal processing circuit 3 into a digital signal in units of one field (or one frame), and 5 denotes an A / D converter. One screen is divided into n blocks, digital information in each block in the screen of the previous field is compared, and a block motion vector _i (i = 1, 2,..., a block motion vector detecting circuit for obtaining n), 13 is an A / D converter for converting the angular velocity information of the sensor signal processing circuit 12 in the lens state detecting system B into a digital signal, and 14 is an output from the A / D converter 13 This is a camera motion vector calculation circuit that calculates a camera motion vector _cam due to blurring or the like based on digital angular velocity information and lens focal length information obtained from the zoom encoder 16 using the following equation.

Reference numeral 6 denotes a motion vector _i (i = 1, 2,..., N) of an image output from the block motion vector detection circuit 5 and a camera motion vector output from the camera motion vector calculation circuit 14.
comparing the _cam, evaluate, panning to be described later as a representative motion vector viewed bound as a motion of the screen, calculates and outputs the pan-tilt control signal PTCONT for controlling the decision signal tilting representative motion vector calculation Circuit. This algorithm will be described later.
Reference numeral 15 compares the camera motion vector _cam output from the camera motion vector calculation circuit 14 for each field, determines whether or not panning, tilting, and the like have occurred in accordance with the displacement of the vector, and indicates a pan / tilt indicating the determination result. This is a pan / tilt determination circuit that outputs a mode signal PTMODE. The pan / tilt determination circuit outputs a pan / tilt mode signal PTMODE = 0 during normal shooting, and determines that the camera has entered the pan / tilt mode if the direction of the camera motion vector does not change for a certain number of fields or more. Outputs the tilt mode signal PTMODE = 1 and keeps outputting "1" until the direction of the camera motion vector is inverted.

Reference numeral 7 denotes focal length information f from the zoom encoder 16 and a pan / tilt mode signal PTMO from the pan / tilt determination circuit 15.
DE, the representative motion vector from the representative motion vector calculation circuit 6 and the pan / tilt control signal PTCONT are taken in to calculate a total shake amount, and a shake correction signal _driv corresponding to the shake amount and a correction system light described later are calculated. This is a correction signal generating circuit that outputs a trigger signal R for resetting the shaft rotating means to the initial position. _{Reference numeral} 8 denotes a D / A converter 8 that converts the shake correction signal _driv and the trigger signal R output from the correction signal generation circuit 7 into analog signals that can control a correction system described later.
It is.

Further, 17 is a system control circuit comprising a microcomputer which controls the operation of the entire apparatus including the respective circuits in the correction signal generating section C blur by such control signals C ₁ -C ₈ at a predetermined timing.

In the correction system D, _{reference numeral 9 denotes} a shake correction signal _driv output from the correction signal generation circuit 7 in the shake correction signal generation system C.
A drive circuit that drives the correction system 10 based on the D / A-converted signal. The drive circuit 10 includes a lens position control mechanism such as an optical axis rotating unit (not shown) provided in the lens system. This is a correction system that operates and moves the lens system in a direction to correct the movement of the screen.

The imaging apparatus of the present application has the above-described configuration. Next, main blocks in the above-described block diagram will be described in more detail.

FIG. 3A is a flowchart for explaining an algorithm for calculating a representative motion vector of an image and a pan / tilt control signal PTCONT in the representative motion vector calculation circuit 6 in the blur correction signal generation system C.

In the figure, each block motion vector in each of n blocks b _i set on the imaging screen in Step 1
_i (i = 1, 2,..., n) and a camera motion vector _cam are input. However, on the imaging screen 20 as shown in FIG. 3 (b), b _1, b ₂ from the upper left, ..., b _n and is assigned spirally number, block the screen center of the n-th block b It is set to be _n . Camera motion vector _cam
Evaluates the magnitude of the vector in Step2, and | _cam |
Is smaller than the predetermined value ε, the process proceeds to Step 3, the representative motion vector is set to 0, and the blur correction operation is stopped.
That is, it is determined that the movement of the camera is small and no correction is necessary.

If | _cam | ≧ ε in Step 3, it is determined that a blur has occurred, and the flow shifts to Step 4, where each block motion vector _i (i = 1, 2,..., N) is obtained as shown in FIG. As shown in c), the camera motion vector in all blocks of the screen 20 is shown.
Compared with _cam, it calculates the number of vectors i and its mean vector _COR1 matching camera motion vector _cam.

Subsequently, the process proceeds to Step 5 and Step 6, where the number N of i that matches _cam is compared with predetermined values N ₁ and N ₂ . However, N ₁ and N _{2 have} a relationship of 0 ≦ N ₁ ≦ N ₂ ≦ n (n is the number of blocks on the screen).

Then, the number N corresponding to _cam is very small and 0
In the case of the screen pattern ₁ where ≦ N ≦ N1, the process proceeds to Step 7 to set the pan / tilt control signal PTCONT to “1”, and then outputs the camera motion vector _cam as a representative motion vector in Step 8, The pan / tilt control signal PTCONT (= 1) is output.

Further, in the case of the screen pattern ₂ in which the number N matching the _cam is very large and N ≧ N2, the pan / tilt control signal PTCONT is set to “1” in Step 9, and then the representative motion vector is set in Step 4 in Step 10. Average vector determined
_{Outputs COR1} and outputs a pan / tilt control signal PTCONT (= 1).

In the screen pattern 1 and the screen pattern 2 described above. A specific vector state on the imaging screen will be described later.

The number N of the motion vector i for each block that matches the camera motion vector _cam takes an intermediate value of N ₁ and N ₂ (N ₁
≦ the N ≦ N ₂₎ when, the process proceeds to Step11, as shown in FIG. 3 (d), the vector _n of the screen center in the central portion of the imaging screen
_Is calculated by calculating the number M of i (i = m... N-1) and the average vector _COR2 . In Stup12, St
the number M, which stopped even ep11 is compared with a predetermined value M _1, when M <Screen Pattern 3 was M ₁ is pan proceeds to Step15
The tilt control signal PTCONT is set to “1”, and in Step 16, the average vector of the vector i that matches the camera motion vector _cam as the representative motion vector
_{Outputs COR1} and pan / tilt control signal
Outputs PTCONT (= 1). In Step 12, M ≧ M ₁
In the case of the screen pattern 4 which has been described above, the process proceeds to Step 13, and the pan / tilt control signal PTCONT is set to “0”.
In Step 14, i corresponding to _n in the center area of the screen
_Is output as the representative motion vector, and the pan / tilt control signal PTCONT (=
0) is output. However, the predetermined value M ₁ of the foregoing, (the m first number of blocks of the screen center area of FIG. 3 _{(d)) 0 ≦ M 1} ≦ n-m is a constant which is determined in the range of.

Next, four cases (1) to (f) in FIG.
(4) The state of the vector of each block on the screen at that time will be specifically described with reference to FIGS. 4 (a) to 4 (d).

I) For screen pattern 1: N <N _{1 In} this case, the motion vector _i of each block on the screen
(I = 1, 2,..., N) The number of coincidences with the camera motion vector _cam is very small, which means that the motion of the subject is larger than the motion of the camera. As shown in FIG. 4 in this case (a), in the case where the motion vector of each block is different from the _cam, respectively, or the motion vector _i is different from the _cam orientation of each block in FIG. (B) one May be considered. In the case of FIG. 7A, it can be assumed that the fine subject is moving in a discrete manner, and in the case of FIG. 7B, the subject occupying most of the screen is moving in a certain direction. Further, there may be an intermediate state between the state shown in FIG.

For the case of II) Screen Pattern 2: N> when the number of motion vector _i for each block that matches the N ₂ camera motion vector _cam is very large, i.e. those movements small screen a subject moves according to movement of the camera There are cases.

As shown in FIG. 3C, the motion vector _i of each block on the screen is arranged in a direction substantially equal to the camera motion vector _cam .

Next, the case of screen patterns 3 and 4 will be described. In the case of the screen patterns 3 and 4, the values take an intermediate value between the screen pattern 1 and the screen pattern 2 described above. In these cases, the effects of the camera movement and the subject movement on the screen are almost the same. Yes, as shown in the control flow after Step 12, the cases can be further divided according to the state of the subject being photographed.

III) For screen pattern 3: M <M _i This case does not correspond to screen patterns 1 and 2, so it is assumed that the subject is located substantially at the center of the screen, and FIG. ), The number M of the motion vectors _i (i = m, m + 1,..., N−1) of the blocks that match the motion vector _n at the center of the screen at the center of the imaging screen, and Based on the average vector _COR2, it is determined whether or not there is a conscious subject in the center of the screen. That is, in the case where M is less than the predetermined value M ₁ (3), as shown in FIG. 4 (d), it is determined that there is no object that consciously caught in the center of the screen, as the representative motion vector, Output the average vector _COR2 .

IV) In the case of screen pattern 4: M ≧ M _{1 In} this case, there is a subject consciously captured in the center of the screen, and as shown in FIG. There is a certain motion vector of the subject different from the motion vector _cam . As the representative motion vector, the average vector of the motion vector _i (i = m,..., N−1) of each block that matches the motion vector _m of the block b _{n at} the center of the screen in the center area of the screen
Output _COR2 .

In the above four image patterns, image patterns 1, 2,
In (3), since a representative motion vector based on the camera motion vector _cam is output, conscious operation of the camera, that is, determination of pan, tilt, etc., is required.
However, in the image pattern 4, since the motion vector is used as the representative motion vector based on the motion of the subject, the pan / tilt determination is not required. Therefore, with respect to the pan / tilt control signal PTCONT and the image patterns 1, 2, and 3, the value is set to "1" and a signal indicating that the pan / tilt needs to be considered is output.

Since it is not necessary to consider pan and tilt for the image pattern 4, the pan / tilt control signal PR
A signal indicating that pan / tilt determination is not performed is output by setting CONT to “0”.

Next, the configuration and operation of the shake correction signal generation circuit 7 based on the representative motion vector output from the representative motion vector calculation circuit 6 and the pan / tilt control signal PTCONT in the block diagram of FIG. 2 will be described.

FIG. 5 (a) is a block diagram showing the internal configuration of the correction signal generating circuit 7.

The sign of the representative motion vector (x, y) output from the representative motion vector calculation circuit 6 is inverted by the sign inversion circuit 201, and the correction angle calculation circuit 202 uses the correction angle calculation circuit 202 based on the focal length information f of the lens system to correct the blur. Lens correction angle θ _yaw ,
θ _pitch is calculated (θ _ywa is the correction angle in the yawing direction,
θ _pitch is a correction angle of the pitching direction). These lens correction angles are obtained by the following equation, and are output as a shake correction signal _driv .

On the other hand, based on the pan / tilt control signal PTCONT output from the representative motion vector calculation circuit 6 and the pan / tilt determination signal PTMODE obtained from the pan / tilt determination circuit 15, a signal obtained by taking a logical product (AND) by the multiplier 204 Is output. FIG. 5 (b) shows these signals PTCONT and PT
In the case of MODE, depending on the situation of the above screen (1) to (4)
FIG. 6 is a diagram showing an AND output logical value in each of FIG. The AND output of the multiplier 204 is used as a switch control signal for the switch 203. When the switch 203 is at "0", the switch 203 is switched to the contact b to output the output of the correction angle calculation circuit 202, that is, the correction angles θ _yaw and θ described above. _The shake correction signal _driv based on the _pitch is output, and when the output of the multiplier 204 is “1”, the output is switched to the open contact a, and the shake correction signal is output.
_{Outputs driv} as “0”.

The rising edge trigger circuit 205 outputs a trigger signal R in accordance with the timing when the output of the multiplier 204 is inverted from “0” to “1”. This trigger signal indicates that the pan / tilt mode has been entered. However, when the pan / tilt mode is determined, the lens system has already been corrected in one direction by several fields by the correction means. If the correction means is stopped at this position, when the correction is started after the pan / tilt is completed, the correction means depends on the direction in which the correctable area exists and the correction becomes difficult.

Therefore, when this trigger signal is output, the drive circuit 9 returns the optical axis rotating means of the correction system 10 to the initial position at a speed that is not visually noticeable on the screen, and the pan and tilt are completed. When the shake correction is started, the correction is always performed from the initial position, so that the correction range is maximized.

The operation of the above-described representative motion vector calculation circuit 6 and correction signal generation circuit 7 will be summarized with reference to FIG. Since it acts on the motion vector _i of the block, it is necessary to consider pan / tilt. Therefore, in these cases, the pan / tilt determination circuit 15
Set the pan / tilt control signal PTCONT to “1” to take into account the pan / tilt determination signal PTMODE output from the PT
Obtains AND output according to MODE.

For the image pattern 4, since the influence of the camera motion vector is small and the motion vector of the subject is used as the representative motion vector, the pan / tilt mode determination signal PT
There is no need to consider MODE, and the pan / tilt control signal PTCONT is set to “0” and the AND output is set to 0.

As described above, according to the imaging apparatus of the present invention, the movement of the camera itself is detected by the angular velocity sensor 11 attached to the camera, and the sensor signal processing circuit 12, the A / D converter 13,
The camera motion vector calculation circuit 14 detects whether the camera has a motion vector _cam and the direction of motion with the camera for a predetermined period or more, determines whether the camera is in a pan / tilt state, and indicates a pan / tilt mode representing the result. Outputs signal PTMODE.

Further, the A / D converter 4 converts a video signal corresponding to the subject image obtained by the image sensor 2 and the camera signal processing circuit 3 into a digital signal.
, The distribution state i (i = 1, 2,..., N) of the moving vector in each of the n blocks set on the imaging surface is obtained.

Then, the camera motion vector _cam is compared with the motion vector _i of each block on the imaging surface, and the relevance is evaluated by the above-described algorithm. A motion vector representative of the screen is obtained, and at the same time, it is necessary to consider pan and tilt. The pan / tilt control signal PTCONT for evaluating the characteristics and determining whether it is necessary to consider the pan / tilt is determined.

Subsequently, the correction signal generation circuit 7 calculates a lens correction amount _driv for correcting blurring by the representative motion vector, the pan / tilt control signal PTCONT, and the pan / tilt mode signal PTMODE, and via the D / A converter 8. To the drive circuit 9 to drive the correction system 10 so as to correct the blur amount, and adjust the lens system.

With the above operation, it is possible to realize a shake correction system that considers both the movement of the camera and the movement of the subject.

[Effects of the Invention] As described above, according to the present invention, as compared with a system that only detects an external sensor or only a motion in an image signal, the response is improved with high accuracy and high sensitivity, and the subject and the subject are improved. Since the movement of the image caused by the relative movement of the device can be accurately distinguished whether the movement of the subject or the shake of the device, the movement of the image to be corrected and the correction of the image It is possible to clearly recognize the motion of the image that should not be performed, and to prevent a malfunction such as stopping the blur correction operation when the blur correction is unnecessary.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a basic configuration of a shake correction system for an image pickup apparatus according to the present invention, FIG. 2 is a block diagram embodying the first block diagram, and FIG. 3 (a) is a block diagram of FIG. FIG. 3B is a flow chart showing the calculation algorithm of the representative motion vector calculation circuit in FIG. 3, FIG. 3B is a diagram for explaining the setting state of the motion vector detection block on the imaging screen, and FIGS. 4 (a) to 4 (e) are diagrams showing an imaging screen pattern used for explaining the operation flow chart of FIG. 4 (a). FIG. 4 (a) to FIG. 4 (e) show a vector distribution on the imaging screen determined by the representative motion vector calculation circuit. FIG. 5 is a block diagram showing the internal configuration of the correction signal generating circuit in the block diagram of FIG. 2, and FIG. 6 is each image pattern of FIGS. 4 (a) to 4 (e). Of the correction signal generation circuit in It is a logic diagram for explaining operation.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masamichi Toyama 770 Shimonoge, Takatsu-ku, Kawasaki-shi, Kanagawa Canon Inc. Tamagawa Works (72) Inventor Toshiyuki Nakashima 3-30-2 Shimomaruko 3-chome, Ota-ku, Tokyo Canon stock (56) References JP-A-1-174076 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H04N 5/232

Claims (5)

(57) [Claims] 1. A first motion detection means for physically detecting motion information of a device by a sensor attached to the device, and a second motion detection for detecting motion information at a plurality of positions in a screen from a photographing signal. Means, from the plurality of pieces of motion information in the image signal detected by the second motion detection means, based on motion information having the same motion direction as the motion information detected by the first motion detection means. An image pickup apparatus comprising: a calculating means for calculating motion correction information; and a correcting means for correcting a motion of an image in accordance with an output of the calculating means. 2. An arithmetic unit for calculating motion correction information from a motion vector of the device physically detected by a sensor attached to the device and motion vectors at a plurality of positions in a screen detected from an image signal. Motion compensation means for compensating the motion of the image due to the motion of the device based on the output of the computation means, wherein the computation means comprises motion vectors at a plurality of positions in the screen detected from the image signal. When the number of motion vectors in which the direction of motion is substantially the same as the motion vector of the device is equal to or less than a predetermined value, it is determined that the motion of the subject is larger than the motion of the camera, An image stabilizing apparatus characterized in that it is configured to output a vector as the motion correcting information to the motion correcting means. 3. An arithmetic means for calculating motion correction information from a motion vector of the device physically detected by a sensor attached to the device and motion vectors at a plurality of positions in a screen detected from an image signal. Motion compensation means for compensating the motion of the image due to the motion of the device based on the output of the computation means, wherein the computation means comprises motion vectors at a plurality of positions in the screen detected from the image signal. When the number of motion vectors in which the direction of motion is substantially the same as the motion vector of the device is equal to or greater than a predetermined value, it is determined that the motion of the subject is smaller than the motion of the camera. Of the motion vectors at a plurality of positions in the screen detected from the motion vector, the motion vectors of which have substantially the same motion direction as the motion vector of the device. Shake correction apparatus characterized by being configured to output to the motion compensation means the value as the motion compensation information. 4. An arithmetic unit for calculating motion correction information from a motion vector of a device physically detected by a sensor attached to the device and motion vectors at a plurality of positions in a screen detected from an image signal. A motion correcting means for correcting a motion of an image based on an output of the calculating means, wherein the calculating means is substantially the same as the motion vector of the device among the motion vectors at a plurality of positions detected from the imaging signal. The number of motion vectors in the same direction is within a predetermined range, and among the motion vectors at a plurality of positions in the center of the screen detected from the imaging signal, the motion vectors in the substantially same direction as the motion vector at the center of the screen are detected. When the number of motion vectors is equal to or more than a predetermined number, the motion compensation information is calculated based on the motion vector at the center of the screen and output to the motion compensation unit. If the number of motion vectors in the same direction as the motion vector at the center of the screen among the motion vectors at a plurality of positions in the center of the screen detected from the imaging signal is equal to or less than a predetermined number, the imaging signal Among the motion vectors at the plurality of positions detected from the inside, an average value of the motion vectors in the substantially same direction as the motion vector of the device is output to the motion correction unit as the motion correction information. A shake correction device. 5. An arithmetic unit for calculating motion correction information from a motion vector of a device physically detected by a sensor attached to the device and motion vectors at a plurality of positions in a screen detected from an image signal. A motion correction unit that corrects the motion of the image based on an output of the calculation unit; and a panning control unit that detects that panning is in progress when the direction of the motion vector of the device does not change for a predetermined time or more. The calculating means is configured such that, among the motion vectors at a plurality of positions detected from the image signal, the number of motion vectors having substantially the same motion direction as the motion vector of the device is within a predetermined range, and Of the motion vectors at a plurality of positions in the center of the screen detected from the signal, the motion direction is substantially the same as the motion vector at the center of the screen. That when the number of motion vectors is equal to or more than a predetermined number, blur correction apparatus characterized by being configured so as to prohibit the operation of the panning control means.