JP5869876B2 - Imaging apparatus and control method thereof - Google Patents

Description

  The present invention relates to an imaging apparatus, and more particularly to an imaging apparatus having a camera shake correction function and a control method thereof.

  2. Description of the Related Art An imaging apparatus including an image blur correction apparatus (also referred to as a camera shake correction apparatus) that corrects an image blur caused by the detected shake by detecting a shake of the imaging apparatus and driving an imaging lens is known. In recent years, there are various technologies such as a technology that enhances camera shake correction for large shakes caused by shooting while walking, and a technology that improves camera shake correction effects for fine shakes and low frequency shakes that occur when shooting at telephoto. There is a special camera shake correction technology. Then, an optimum camera shake correction control is performed by automatically selecting a function corresponding to the shooting situation from among a plurality of types of camera shake correction functions prepared in advance.

  When shooting a moving image, shooting may be performed while performing camera work such as panning or tilting that intentionally moves the camera. In shooting while performing these camera works, by restricting camera shake correction and reducing the correction capability, the correction lens prevents the shot image from being disturbed by hitting the correction end, and the movement of the shot image is reduced. Control to be smooth. On the other hand, when shooting a fixed point without moving the camera, the restriction of camera shake correction is lifted to increase the correction capability, and the correction effect for fine shaking and low frequency shaking not intended by the user is enhanced. Control.

  For example, a technique described in Patent Document 1 has been proposed as a technique for distinguishing between a shake intended by the photographer and an unintended shake. By using such a technique, it is possible to automatically select a function according to the shooting situation from various camera shake corrections. At the same time, by displaying a display item corresponding to the selected camera shake correction function on the display screen, the user can easily recognize the camera shake correction control being executed.

JP-A-10-209355

  As an example of using the conventional technology to automatically select and execute the camera shake correction function according to the shooting situation and display the display items corresponding to the camera shake correction function being executed, the following camera is used. An example will be described. As shooting conditions, a pan / tilt shooting mode in which the camera is intentionally moved and a fixed point shooting mode in which a fixed point is shot without moving the camera are distinguished, and a camera shake correction mode suitable for each shooting situation is executed. Then, display items corresponding to the camera shake correction mode being executed are displayed on the display screen. The method disclosed in Patent Document 1 is used for determining the shooting situation. In such a conventional camera, when the camera shake correction function corresponding to the shooting situation is automatically selected and executed, and the display item corresponding to the camera shake correction function being executed is displayed, the following There was such a problem.

  In Patent Literature 1, it is determined whether the camera work is intended or camera shake is not so according to the magnitude of the shake or the correction amount of the shake correction means calculated from the shake amount. However, the magnitude of the shake varies depending on the photographer. When a large shake (camera shake) is added, which is not the shake intended by the photographer, this may be determined as the intended camera work. Therefore, the display item is switched against the user's intention, and there is a problem that the user feels uncomfortable. A measure to prevent the camera shake correction function from switching frequently by increasing the threshold value for determining the intended camera shake relative to the size of the camera shake can be considered. It meant that it would be easier, and it did not lead to a fundamental solution.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide an imaging apparatus capable of displaying a display item indicating a shooting situation intended by a user on a display screen and a control method thereof.

Imaging device according to the present invention is an imaging apparatus having a plurality image blur correction mode, an imaging unit for imaging the subject image formed by the optical system, vibration detection means for detect a shake of the image pickup device And a correction unit that selects and executes one of the plurality of image blur correction modes according to the output of the shake detection unit, and a plurality of display items associated with each of the plurality of image blur correction modes. Display means, motion vector detection means for detecting a motion vector between a plurality of time-sequential images, and calculating the amount of screen movement caused by a spatial position change of the imaging apparatus by integrating the motion vectors. One display item is selected from the plurality of display items according to the calculation unit, the image blur correction mode executed by the correction unit, and the screen movement amount. Characterized in that it comprises a control means for displaying on said display means in.

  ADVANTAGE OF THE INVENTION According to this invention, the imaging device which can display the display item which shows the imaging | photography situation which the user intended on the display screen, and its control method can be provided.

1 is a block diagram illustrating a configuration of an imaging apparatus according to an embodiment of the present invention. The figure which shows camera shake correction mode and the display item corresponding to it. The figure which shows the camera-shake correction mode and the characteristic of the integrator corresponding to it. The flowchart which shows the process which determines camera shake correction mode. The flowchart which shows the process which determines a display icon. The figure which shows the example of a display of the display icon for camera shake correction modes.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the following embodiments, a digital video camera that captures a moving image will be described as an example of an imaging apparatus having a plurality of executable image blur correction modes.

  FIG. 1 is a block diagram illustrating a configuration of an imaging apparatus according to an embodiment. In FIG. 1, the imaging optical system 102 forms a subject image on the imaging surface of the imaging apparatus 100. The correction optical system 103 changes the incident angle of the optical axis on the imaging surface by being moved in a two-dimensional plane perpendicular to the optical axis of the imaging optical system 102. The movement of the correction optical system 103 can optically correct image blurring that occurs in the captured image of the imaging apparatus 100. The imaging unit 104 photoelectrically converts the optical image incident by the imaging optical system 102 and the correction optical system 103 and outputs an image signal. The imaging signal processing unit 105 performs signal processing on the image signal output from the imaging unit 104 and converts the image signal into a video signal. The video signal processing unit 106 processes a setting menu image, a captured image, and the like according to the use in addition to an image (through image) based on the video signal output from the imaging signal processing unit 105. The display unit 107 is a display device such as a liquid crystal display element (LCD) that displays an image based on the signal output from the video signal processing unit 106.

  An angular velocity sensor 108 (a shake detection unit) serving as a shake detection sensor detects a shake of the imaging apparatus 100. For example, the angular velocity sensor 108 is a sensor such as a vibration gyro, and detects shaking of the imaging apparatus 100 due to camera shake or the like and converts it into an electrical signal. The amplifier 109 amplifies the output of the angular velocity sensor 108 to an optimum sensitivity and supplies it to the A / D converter 110. The A / D converter 110 converts the electrical signal output from the amplifier 105 into a digital signal and takes it into the uCOM 101.

  The HPF 111 can arbitrarily change the cutoff frequency, and attenuates a low frequency component included in the angular velocity signal. The integrator 112 can arbitrarily change the time constant, and integrates the angular velocity signal having the low frequency component attenuated by the HPF 111 to convert it into an angular displacement signal. The calculated angular displacement signal corresponds to a swing angle detected as a swing applied to the imaging apparatus 100, and blur correction is performed based on this signal.

  The focal length correction unit 113 calculates the focal length of the imaging optical system 102 from the output of the zoom encoder 120, and takes the calculated focal length into the angular displacement signal output from the integrator 112 to drive the correction optical system 103. Calculate the position.

  The control filter 114, the pulse width modulation unit 115, the motor driving unit 116, the motor 117, the position detection sensor 118, and the A / D converter 119 constitute a feedback loop that controls the driving of the correction optical system 103. The position detection sensor 118 detects the position of the correction optical system 103 and outputs an electrical signal. The A / D converter 119 converts the electrical signal from the position detection sensor 118 into a digital signal and takes it into the uCOM 101. The captured signal is the current position of the correction optical system 103. The control filter 114 receives a deviation, which is the difference between the drive target position and the current position, performs various calculations so that the deviation approaches zero, and outputs a control signal for driving the correction optical system 103. The control signal output from the control filter 114 is sent to the pulse width modulation unit 115 and converted into a PWM (Pulse Width Modulation) signal. The motor drive unit 116 drives the motor 117 based on the PWM signal from the pulse width modulation unit 115 and drives the correction optical system 103. In this way, the position of the correction optical system 103 is made to follow the drive target position by controlling the feedback loop so that the difference between the drive target position of the correction optical system 103 and the current position becomes zero. The drive target position is calculated based on the angular displacement signal, and camera shake correction is performed by driving the correction optical system 103 so as to correct image blur caused by shaking applied to the imaging apparatus 100.

  The correction mode determination unit 122 determines the shooting state according to the angular velocity and the angular displacement based on the output from the shake detection sensor, and selects an optimal camera shake correction mode from various camera shake correction modes. The correction characteristic control unit 123 sets the frequency characteristic of the HPF 111 and the time constant of the integrator 112 according to the camera shake correction mode selected by the correction mode determination unit 122, thereby switching to various camera shake correction effects. Is. First, the cutoff frequency of the HPF 111 is set according to the camera shake correction mode, and the frequency component to be subjected to the shake correction is changed. In addition, since the correction optical system 103 is controlled smoothly so as not to hit the limit position of the correctable range, the time constant of the integrator 112 is gradually reduced as the angular displacement increases, and the correction effect is weakened. The characteristic representing the change in the time constant is given as a function of the normalized angular displacement obtained by normalizing the angular displacement, which is the output of the integrator 112, at the limit position of the correctable range, and different characteristics are applied depending on the camera shake correction mode. .

  The display item determination unit 124 determines a display item according to the motion vector output from the motion vector detection unit 121 (motion vector detection unit) and the camera shake correction mode selected by the correction mode determination unit 122. Thus, instead of displaying the display item corresponding to the camera shake correction mode determined by the correction mode determination unit 122 on the display unit as it is, the display item is determined by taking the screen movement amount based on the motion vector into consideration. The point to be performed is the most characteristic point in the present embodiment. Detailed description will be given later.

  The motion vector detection unit 121 is based on the luminance signal included in the signal processed by the imaging signal processing unit 105, and the amount of motion between images (between successive images in time series) based on the previous field or frame. (Motion vector) is detected. As a motion vector detection method, a correlation method, a block matching method, and the like are known. Here, as an example, the block matching method is adopted for the motion vector detection unit 121. In this block matching method, the input image signal is first divided into a plurality of appropriately sized blocks (for example, 8 × 8 pixels), and the difference between the pixels in a certain range of the previous field or frame is calculated for each block. To do. This is a method of searching for a block of the previous field or frame in which the sum of absolute values of the differences is minimized and detecting a relative shift of the block as a motion vector of the block.

  FIG. 2 shows an example of the camera shake correction mode and display items associated with the respective camera shake correction modes (in this embodiment, icons are used). In the present embodiment, a mode corresponding to the shooting situation is selected and executed from the three camera shake correction modes of the normal correction mode, the fixed point shooting mode, and the tripod mode. FIG. 2 shows an example of an icon as a display item associated with each camera shake correction mode. Note that the types of display icons shown in FIG. 2 are examples of icons representing various camera shake correction modes.

  A detailed example will be described below for each of a plurality of camera shake correction modes that can be executed.

  [Normal Correction Mode] This is a normal camera shake correction mode for hand-held moving image shooting, and is a camera shake correction mode that emphasizes that smooth shooting can be performed even in shooting with camera work intended by the photographer.

When the normal correction mode is selected, the cutoff frequency of the HPF 111 is set to about 0.2 Hz, for example. This is even set so as to correct the frequency of about 2 to 10 Hz, which is the main frequency component of camera shake, among the detected shaking signals. Further, the time constant of the integrator 112 is changed so as to have the characteristics shown in FIG. By gradually reducing the time constant from about 40% of the normalized angular displacement, smooth corrections can be made without hitting the correction limit even when large shakes or camera work intended by the photographer is performed. It has become.
[Fixed point shooting mode] This is a camera shake correction mode that is suitable for shooting mainly on the telephoto side without intentionally moving the camera. The purpose of the fixed-point shooting mode is to enhance the vibration-proofing effect against blurring in a frequency band lower than that in the normal correction mode, and to strengthen the vibration-proofing effect. The reason for this is that even if the photographer holds the camera firmly, there is often a low frequency shake due to shaking caused by breathing or a loose shake of the entire body, especially when shooting on the telephoto side. This is because image fluctuations due to such low frequency fluctuations are conspicuous.

  When the fixed point shooting mode is selected, the cutoff frequency of the HPF 111 is set to about 0.05 Hz, for example, so that the frequency is lower than that in the normal correction mode. This is because the low-frequency vibration generated by the above-described shaking caused by breathing and the gentle shaking of the entire body is corrected. Further, the time constant of the integrator 112 is changed so as to have the characteristics shown in FIG. The normalized angular displacement at which the time constant starts to be reduced is widened to around 90%, so that it can cope with blurring larger than that in the normal correction mode.

  [Tripod mode] Reduces the effect of camera shake correction when the camera shake is small, such as when mounted on a tripod stand. The reason for reducing camera shake is to prevent the captured image from fluctuating even though the camera is stationary due to low-frequency fluctuation noise output from the angular velocity sensor.

  When the tripod mode is selected, the cutoff frequency of the HPF 111 is set to about 2 Hz, for example, and the fluctuation component in the low range of the angular velocity sensor is removed. Further, the time constant of the integrator 112 is changed so as to have the characteristics shown in FIG. 3C, and the correction effect is set to be weaker than that in the normal mode.

  Next, with reference to FIG. 4, the process for selecting the camera shake correction mode according to the shooting situation from the plurality of camera shake correction modes, which is executed by the correction mode determination unit 122, will be described. The camera shake correction mode determination process shown in FIG. 4 is performed in synchronization with the video frame rate. For example, in the case of NTSC, it is executed at a period of 16.67 ms.

  First, in S101, the angular displacement that is the output of the integrator 112 is normalized at the limit position of the correctable range, and the normalized angular displacement is calculated. In S102, it is determined whether or not the current camera shake correction mode is a tripod mode. If it is determined that the tripod mode is selected, the process proceeds to S103, and it is determined whether or not the angular velocity detected by the angular velocity sensor 108 is equal to or greater than a predetermined value. If it is determined that the angular velocity is greater than or equal to the predetermined value, the process proceeds to S106, and the process proceeds to determination of the fixed point shooting mode. If it is determined in S103 that the angular velocity is not equal to or greater than the predetermined value, the process proceeds to S105, and the tripod mode is selected as the camera shake correction mode.

  If the camera shake correction mode is not determined to be the tripod mode in S102, the process proceeds to S104, and it is determined whether the angular velocity is equal to or less than a predetermined value. If it is determined that the angular velocity is equal to or less than the predetermined value, the process proceeds to S105, and the tripod mode is selected as the camera shake correction mode. If the angular velocity is not determined to be equal to or less than the predetermined value in S104, the process proceeds to S106 and the determination is made for the fixed point shooting mode. Further, the threshold used for the determination in S104 is set to a value sufficiently smaller than the angular velocity generated by normal camera shake, and the threshold used for the determination in S103 is set to a value sufficiently larger than the threshold used for the determination in S104.

  In S106, it is determined whether or not the current camera shake correction mode is the fixed point shooting mode. If it is determined that the fixed-point shooting mode is selected, the process proceeds to S107, and it is determined whether the normalized angular displacement calculated in S101 is equal to or greater than a predetermined value. When it is determined that the normalized angular displacement is equal to or greater than the predetermined value, the process proceeds to S110, and the normal correction mode is selected as the camera shake correction mode. If it is determined in S107 that the normalized angular displacement is not equal to or greater than the predetermined value, the process proceeds to S108, and the fixed point shooting mode is selected as the camera shake correction mode.

  If the camera shake correction mode is not determined to be the fixed point shooting mode in S106, the process proceeds to S109 to determine whether the normalized angular displacement is equal to or less than a predetermined value. When it is determined that the normalized angular displacement is equal to or smaller than the predetermined value, the process proceeds to S108, and the fixed point shooting mode is selected as the camera shake correction mode. If it is not determined in S109 that the normalized angular displacement is equal to or less than the predetermined value, the process proceeds to S110 and the normal correction mode is selected.

  Here, the normalization angular displacement threshold value determined to be the normal correction mode in S107 is, for example, 95%, and the normal correction mode is switched to the limit position of the correction range. In order to prevent frequent switching between the fixed point shooting mode and the normal correction mode, the threshold value for determining the fixed point shooting mode in S109 is set to a value sufficiently smaller than the threshold value used for the determination in S107, for example, 30%.

  Next, with reference to FIG. 5, the process for displaying the display icon of the camera shake correction mode, which is executed by the display item determination unit 124, will be described. That is, the display item determination unit 124 functions as a control unit that displays a display icon in the camera shake correction mode. The display icon determination process shown in FIG. 5 is performed in synchronization with the video frame rate. For example, in the case of NTSC, the display icon determination process is executed at a period of 16.67 ms.

  First, in S201, it is determined whether or not the determination result of the correction mode determination unit 122 is the fixed point shooting mode. If it is determined that the fixed point shooting mode is selected, the process proceeds to S202, and it is determined whether or not the correction mode in the previous icon determination process is the fixed point shooting mode. When it is determined that the previous correction mode is not the fixed point shooting mode, the process proceeds to S204, and the screen movement amount is reset to zero.

  By the processing of S201 and S202, the timing for switching from the correction mode other than the fixed point shooting mode to the fixed point shooting mode can be detected. In order to determine the amount of screen movement while the fixed-point shooting mode is continued from the time when the mode is switched to the fixed-point shooting mode, the screen displays the time when the switching from the correction mode other than the fixed-point shooting mode to the fixed-point shooting mode is detected. As a starting point of movement, the screen movement amount is reset and integration is started.

  If the fixed point shooting mode is not determined in S201, or if the previous correction mode is determined to be the fixed point shooting mode in S202, the process proceeds to S203. In S203, the motion vectors output from the motion vector detection unit 121 are integrated to calculate the screen movement amount. In other words, the amount of screen movement caused by the spatial position change of the imaging device is calculated by integrating the motion vectors. That is, the display item determination unit 124 functions as a calculation unit that calculates the amount of motion caused by the spatial position change of the imaging apparatus by integrating the motion vectors. The motion vector is actually decomposed into an X direction (horizontal direction) component and a Y direction (vertical direction) component, and an integration process is performed independently of each other. Accordingly, the X-direction screen movement amount and the Y-direction screen movement amount are similarly calculated as the screen movement amount.

  In S205, it is determined whether or not the determination result of the correction mode determination unit 122 is the tripod mode. If it is determined that the tripod mode is selected, the process proceeds to S206, and a display icon for the tripod mode is displayed. If the tripod mode is not determined in S205, the process proceeds to S207.

  In S207, it is determined whether or not the determination result of the correction mode determination unit 122 is the fixed point shooting mode. If it is determined that the fixed point shooting mode is selected, the process proceeds to S211 to display a display icon for the fixed point shooting mode. If the fixed point shooting mode is not determined in S207, the process proceeds to S208, and it is determined whether or not the display icon for the fixed point shooting mode is displayed. If it is determined that the display icon for the fixed point shooting mode is displayed, the process proceeds to S209, and it is determined whether or not the screen movement amount obtained in S203 is equal to or greater than a predetermined value. Here, the screen movement amount is determined for each of the X-direction screen movement amount and the Y-direction screen movement amount, and when either one is greater than or equal to a predetermined value, it is determined that the image movement amount is greater than or equal to the predetermined value. To do. If it is determined in step S209 that the screen movement amount is not equal to or greater than the predetermined value, the process proceeds to step S211 to display a fixed point shooting mode display icon. If it is determined in S208 that the fixed point shooting mode display icon is not displayed, or if it is determined in S209 that the screen movement amount is equal to or greater than the predetermined value, the process proceeds to S210, and the display icon for the normal correction mode is displayed. . As a result, since the fixed point shooting mode display icon is displayed as an internal process although the fixed point shooting mode is exited, it is possible to prevent the icon from being frequently switched when the shake amount is near the threshold value.

  Next, with reference to FIG. 6, a state in which the display icon in the camera shake correction mode by the imaging apparatus according to the present embodiment is switched will be described. FIG. 6 shows an image displayed on the display unit when the subject is photographed. In the figure, reference numeral 601 denotes a subject being shot, 602 denotes a camera shake correction mode icon displayed on the display unit, 603 denotes a screen movement amount threshold value for switching from the fixed point shooting mode to the normal correction mode, and the screen movement amount is The center of the screen is shown as the origin.

  First, FIG. 6A shows an image when shooting is performed so that the subject 601 is placed in the center of the screen without performing camera work such as panning or tilting. At this time, only the camera shake is applied to the camera. Therefore, when the detected shake is small and the normalized angular displacement (angular displacement) is less than the predetermined value, the fixed point shooting mode is selected and executed as the camera shake correction mode. Is done. The camera shake correction mode icon 602 is switched to a display icon for the fixed point shooting mode at the same time when the camera shake correction mode is switched to the fixed point shooting mode. Note that the amount of movement (blur amount) on the screen at this time is a blur that could not be corrected by the correction optical system, and thus the size of the camera shake does not exceed the correctable range of the correction optical system. In this case, most of the blur is corrected by the correction optical system. Therefore, the amount of blur on the screen is very small. In addition, when the camera shake correction mode is switched to the fixed point shooting mode, the camera shake correction effect is more effectively applied than in the normal correction mode, and thus the screen movement amount becomes smaller.

  FIG. 6B shows an image when the subject 601b is photographed so as to be centered, but a large shake occurs unintentionally. When the detected shake increases, the correction optical system approaches the limit position of the correctable range. When the normalized angular displacement (angular displacement) exceeds a predetermined value, the camera shake correction mode is switched from the fixed point shooting mode to the normal correction mode to weaken the effect of camera shake correction. As a result, even if a large shake exceeding the correctable range of the correction optical system occurs, the control can be smoothly performed without hitting the limit position of the correctable range.

  On the other hand, the camera shake correction mode icon 602 performs determination according to the amount of screen movement. The screen movement amount is calculated as an integrated value of motion vectors from the time when the camera shake correction mode is switched to the fixed point shooting mode. Therefore, the image movement amount is calculated as a vector on the screen from the subject 601 to the subject 601b, that is, a vector as indicated by the image movement amount 604b. Until the screen movement amount 604b exceeds the threshold 603, the camera shake correction mode icon 602b is continuously displayed as a display icon for the fixed point shooting mode.

  FIG. 6C shows an image when the camera is shot while intentionally panning rightward from the state of FIG. 6B. Since the camera is intentionally moved rightward, the subject 601c moves leftward on the screen. In the camera shake correction mode, the normal correction mode is continuously executed from the state of FIG. Since the screen movement amount used for the determination of the camera shake correction mode icon is calculated as an integrated value of the motion vector from the time of switching to the fixed point shooting mode, it is calculated as a vector as indicated by the image movement amount 604c. When the screen movement amount 604c exceeds the threshold value 603, the display icon for the fixed point shooting mode is canceled, and the camera shake correction mode icon 602c is switched to the display icon for the normal correction mode.

  As described above, the camera shake correction mode display icon does not display the current camera shake correction mode as it is, but switches the image taking into account the amount of screen movement calculated by the motion vector. It is possible to prevent the display icon in the camera shake correction mode from being frequently switched even if a large shake exceeding the correction possible range occurs.

  As described above, according to the embodiment of the present invention, the following effects can be obtained. The imaging apparatus according to the present embodiment performs smooth image stabilization control even when a large shake unintended by the photographer occurs, and can prevent the display icon indicating the camera shake correction mode from being frequently switched. A display icon close to the intention of the user can be displayed.

(Other embodiments)
In the above embodiment, the screen movement amount used for the determination in S209 is determined using the same threshold value in both the X direction and the Y direction. However, different threshold values are used for the X direction and the Y direction, respectively. A determination may be made. For example, the ratio of the threshold values in the X direction and the Y direction may be changed in accordance with the aspect ratio of the recorded video. Further, the screen movement amount may be calculated as a vector having an orientation, and a threshold may be provided for the magnitude of the vector. Thereby, since it can determine with the same movement amount with respect to any direction, a display item can be switched more naturally.

  In the above embodiment, the normalized angular displacement calculated from the angular velocity is used in the camera shake correction mode determination process shown in FIG. 4, but the present invention is not limited to this. Similar to the determination of the display item, the determination may be performed using the screen movement amount, or the determination may be performed by combining the screen movement amount and the normalized angular displacement. In that case, by setting the threshold value of the screen movement amount used for the determination of the display item to be larger than the threshold value of the screen movement amount used for the determination of the camera shake correction mode, it is possible to obtain the same effect as the above embodiment.

  Note that the correction optical system 103 (for example, a shift lens) has been described as an example of the blur correction unit, but the present invention is not limited to this. For example, a variable apex angle prism (VAP), a method of driving the image sensor in a direction perpendicular to the optical axis, or the like may be used. Also, electronic correction that electronically corrects blur by changing the cutout position of the image (cutting position change) according to the blurring of the image may be used. When electronic correction is used, the amount of movement on the image that is actually recorded or displayed on the display unit is obtained by subtracting the shift amount of the clipping position set by electronic correction from the amount of image movement calculated by the motion vector. The amount will appear as a moving amount on the screen. Therefore, in the determination of the display item, the same effect as in the above embodiment can be obtained by performing the determination using the value obtained by subtracting the shift amount of the cutout position from the screen movement amount calculated by the motion vector. it can.

Claims (10)

An imaging apparatus having a plurality of image blur correction modes,
An imaging means for imaging a subject image formed by the optical system;
Shake detection means for detecting shake of the imaging device;
Correction means for selecting and executing one of the plurality of image blur correction modes according to the output of the shake detection means;
Display means for displaying a plurality of display items associated with each of the plurality of image blur correction modes;
A motion vector detecting means for detecting a motion vector between a plurality of time-series images,
Calculating means for calculating the amount of screen movement caused by the spatial position change of the imaging device by integrating the motion vectors;
Control means for selecting one display item from the plurality of display items and displaying it on the display means according to the image blur correction mode being executed by the correction means and the screen movement amount;
An imaging apparatus comprising:   The correction unit includes a cutout position changing unit that corrects an image blur of the picked-up image by changing a cutout position of the picked-up image, and the control unit is a cutout position set by the cutout position changing unit from the screen movement amount The imaging apparatus according to claim 1, wherein one display item is selected from the plurality of display items and displayed on the display unit according to a screen movement amount obtained by subtracting.   The plurality of image blur correction modes include a fixed point shooting mode that indicates a situation in which a fixed point is shot without intentionally moving the imaging device, and the control unit is configured to execute the fixed point shooting mode. The display item corresponding to the fixed point shooting mode is displayed on the display means, and the display item corresponding to the fixed point shooting mode is canceled when the screen movement amount is larger than a predetermined threshold. The imaging device according to claim 1 or 2.   The imaging apparatus according to claim 3, wherein the calculation unit calculates the screen movement amount using an image when switching to the fixed point shooting mode as a starting point of the screen movement. A method for controlling an imaging apparatus having imaging means for imaging a subject image formed by an optical system and having a plurality of image blur correction modes,
A correction step of selecting and executing one of the plurality of image blur correction modes according to the shooting situation;
A display step of displaying a plurality of display items associated with each of the plurality of image blur correction modes on a display unit;
A detection step of detecting a motion vector between a plurality of time-sequential images;
A calculation step of calculating the amount of screen movement caused by a spatial position change of the imaging device by integrating the motion vectors;
A control step of selecting one display item from the plurality of display items and displaying it on the display means according to the image blur correction mode being executed in the correction step and the screen movement amount calculated in the calculation step; ,
An image pickup apparatus control method comprising: An imaging apparatus having a plurality of image blur correction modes,
Detecting means for detecting shake of the imaging device;
Correction means for selecting and executing one of the plurality of image blur correction modes according to the output of the detection means;
Display control means for displaying a plurality of display items associated with each of the plurality of image blur correction modes on a display device;
Calculating means for detecting a motion vector between a plurality of time-series continuous images and calculating a screen movement amount;
When the image blur correction mode to be executed is changed from the first image blur correction mode to the second image blur correction mode, the display control unit is configured according to the magnitude of the screen movement amount by the calculation unit. An imaging apparatus that controls whether to display a display item corresponding to the first image blur correction mode or to display a display item corresponding to the second image blur correction mode. The correction means includes cutout position changing means for correcting image blurring of the picked-up image by changing the cutout position of the picked-up image, and the display control means is a cutout set by the cutout position changing means from the screen movement amount. The imaging apparatus according to claim 6, wherein one display item is selected from the plurality of display items and displayed on the display apparatus in accordance with a screen movement amount obtained by subtracting a position shift amount. The plurality of image blur correction modes include a fixed point shooting mode indicating a situation in which a fixed point is shot without intentionally moving the imaging apparatus, and the display control unit is configured such that the correction unit executes the fixed point shooting mode. The display item corresponding to the fixed point shooting mode is displayed on the display device, and the display of the display item corresponding to the fixed point shooting mode is canceled when the screen movement amount is larger than a predetermined threshold. The imaging device according to claim 6 or 7.   The imaging apparatus according to claim 8, wherein the calculation unit calculates the screen movement amount using an image when switching to the fixed point shooting mode as a starting point of screen movement. A method for controlling an imaging apparatus having a plurality of image blur correction modes,
A detection step of detecting shake of the imaging device;
A correction step of selecting and executing one of the plurality of image blur correction modes according to the output of the detection step;
A display control step of displaying a plurality of display items associated with each of the plurality of image blur correction modes on a display device;
A calculation step of calculating a screen movement amount by detecting a motion vector between a plurality of continuous images in time series,
In the display control step, when the image blur correction mode to be executed is changed from the first image blur correction mode to the second image blur correction mode, according to the magnitude of the screen movement amount by the calculation step, A control method for an imaging apparatus, comprising: controlling whether to display a display item corresponding to the first image blur correction mode or to display a display item corresponding to the second image blur correction mode.

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