JP7198976B2 - Imaging device - Google Patents

Description

The present disclosure relates to an imaging device to which an interchangeable lens can be attached and which has an image stabilization function in a camera body.

An imaging device to which an interchangeable lens can be attached communicates with the interchangeable lens, acquires information about the interchangeable lens such as the focal length and F value from the interchangeable lens, and operates the interchangeable lens and the camera body based on the acquired information. Control. For example, when performing camera shake correction, the imaging apparatus determines the amount of correction based on the focal length of the interchangeable lens.

Japanese Patent Application Laid-Open No. 2002-200001 discloses an imaging apparatus that performs appropriate operation control even when information about the interchangeable lens cannot be acquired from the interchangeable lens because the interchangeable lens is connected to a camera body via an accessory.

The imaging device of Patent Document 1 includes a communication unit that communicates with an accessory, a control unit that controls the imaging device, an input unit that receives user input, a display unit that displays information related to user input, and an optical image of a subject that is electrically generated. An imaging device that converts the image into a signal and an anti-vibration unit that performs anti-vibration control of the imaging device are provided. A communication unit can communicate with the accessory. When the control unit identifies that the accessory is the mount adapter, the control unit displays on the display unit a screen requesting the user to input information regarding the interchangeable lens attached to the mount adapter. The control unit controls the imaging device based on the user input when there is a user input.

Information on the interchangeable lens includes information on the focal length of the interchangeable lens. The control unit controls the image stabilization unit based on information about the focal length of the interchangeable lens input by the user. As described above, according to Patent Document 1, by allowing the user to input information about the focal length of the interchangeable lens on the screen, even when the information about the focal length cannot be obtained from the interchangeable lens by communication, it is possible to perform appropriate anti-vibration control. there is

WO2013/183333

The present disclosure provides an imaging device capable of realizing accurate camera shake correction according to the focal length of the interchangeable lens even when an interchangeable lens that does not have a communication function is attached.

An imaging device according to a first aspect of the present disclosure is an imaging device to which an interchangeable lens can be attached. The imaging device includes an imaging element, a blur detection section, a camera shake correction section, a display section, and a control section. The imaging device generates image data based on an image formed through the interchangeable lens. The blur detection unit detects a blur amount of the imaging device. The shake correcting section performs a shake correcting operation by moving the imaging device based on the detected shake amount and the focal length of the interchangeable lens. The display unit displays a setting screen. The setting screen is a screen for inputting focal length information, which is at least one of the focal length of the interchangeable lens and information corresponding to the focal length. The control section controls the display section and the image stabilization section.

Here, an image generated based on the image data generated in real time by the imaging element is defined as a live view image. The control unit causes the display unit to display the setting screen superimposed on the live view image, and converts the focal length information displayed on the setting screen to the image stabilization operation performed by the image stabilization unit. be reflected in

An imaging device according to a second aspect of the present disclosure is an imaging device to which an interchangeable lens can be attached. The imaging device includes an imaging element, a blur detection section, a camera shake correction section, a display section, and a control section. The imaging device generates image data based on an image formed through the interchangeable lens. The blur detection unit detects a blur amount of the imaging device. The shake correcting section performs a shake correcting operation by moving the imaging element based on the detected shake amount and the focal length of the interchangeable lens. The display unit displays a setting screen. The setting screen is a screen for inputting focal length information, which is at least one of the focal length of the interchangeable lens and information corresponding to the focal length. The control section controls the display section and the image stabilization section. The control unit causes the display unit to display information quantitatively indicating the magnitude of blurring of the live view image on the setting screen. Here, the live view image is generated based on the image data generated in real time by the imaging device.

According to the imaging device of the present disclosure, the user can confirm the effect of camera shake correction while viewing a live view image, and can input the focal length of the interchangeable lens while confirming the effect of camera shake correction. As a result, an appropriate focal length of the interchangeable lens can be set, and an accurate camera shake correction function can be realized.

1 is a block diagram showing the configuration of a digital camera according to Embodiment 1 of the present disclosure; FIG. A diagram showing an example of a focal length setting screen A diagram explaining how the entered focal length is reflected in image stabilization in Live View display. Flowchart showing processing when the power of the digital camera is turned on Flowchart relating to focal length setting processing in Embodiment 1 Diagram showing the blur amount indicator displayed on the focal length setting screen A diagram explaining changes in the blurring amount indicator Flowchart relating to focal length setting processing when displaying a blur amount indicator A diagram explaining a state in which a part of the live view image on which the focal length setting screen is superimposed is enlarged. A diagram explaining the focal length setting screen where the focal length setting value can be selected from the registered setting values. A diagram explaining the function that allows you to register focal length settings on the focal length setting screen.

Hereinafter, embodiments of the present disclosure will be described with appropriate reference to the drawings. However, in the detailed description, unnecessary portions may be omitted from the description of the prior art and substantially the same configuration. This is for simplicity of explanation. Also, the following description and accompanying drawings are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter of the claims. In the following description, a digital camera is used as an example of an imaging device.

(Embodiment 1)
A digital camera according to the present embodiment includes a camera body to which an interchangeable lens can be attached. The camera body has a blur correction function that reduces the effects of camera shake on captured images. Specifically, a digital camera detects blur by a blur detector in the camera body. The digital camera moves an image sensor such as a CCD (Charge Coupled Device) in a plane perpendicular to the optical axis of the optical system according to the detected blur. This allows the digital camera to reduce the effects of blurring. Hereinafter, the function of shifting the image sensor in this way to correct blurring is referred to as a "BIS (Body Image Stabilizer) function".

[1. Constitution]
FIG. 1 is a block diagram showing the configuration of a digital camera according to Embodiment 1 of the present disclosure. A digital camera 10 comprises a camera body 100 and an interchangeable lens 200 detachable therefrom.

[1-1. camera body]
A camera body 100 (an example of an imaging device) includes an image sensor 110 (an example of an imaging device), a liquid crystal monitor 120 (an example of a display unit), an operation unit 130, a controller 140 (an example of a control unit), and a body mount. 150 , a power supply 160 and a card slot 170 .

The controller 140 controls the overall operation of the digital camera 10 by controlling components such as the image sensor 110 according to instructions from the release button. The controller 140 can be realized by a semiconductor element or the like. The controller 140 may be configured only by hardware, or may be realized by combining hardware and software.例えば、コントローラ１４０は、ＣＰＵ（Ｃｅｎｔｒａｌ Ｐｒｏｃｅｓｓｉｎｇ Ｕｎｉｔ）、ＭＰＵ（Ｍｉｃｒｏ Ｐｒｏｃｅｓｓｉｎｇ Ｕｎｉｔ）、ＤＳＰ（Ｄｉｇｉｔａｌ Ｓｉｇｎａｌ Ｐｒｏｃｅｓｓｏｒ）、ＧＰＵ（Ｇｒａｐｈｉｃｓ Ｐｒｏｃｅｓｓｉｎｇ Ｕｎｉｔ）、ＦＰＧＡ（Ｆｉｅｌｄ‐Ｐｒｏｇｒａｍｍａｂｌｅ Ｇａｔｅ Ａｒｒａｙ）、またはＡＳＩＣ（Ａｐｐｌｉｃａｔｉｏｎ Ｓｐｅｃｉｆｉｃ Ｉｎｔｅｇｒａｔｅｄ Ｃｉｒｃｕｉｔ ) or the like. Controller 140 sends a vertical synchronization signal to timing generator 112 . In parallel with this, the controller 140 generates an exposure synchronization signal. The controller 140 can periodically transmit the generated exposure synchronization signal to the interchangeable lens via the body mount 150 when the interchangeable lens has a communication function. The controller 140 uses a DRAM (Dynamic Random Access Memory) 141 as a work memory during control operations and image processing operations.

The image sensor 110 is an imaging device that captures a subject image incident through the interchangeable lens 200 and generates image data. The image sensor 110 is, for example, a CCD, a CMOS (Complementary Metal Oxide Semiconductor) image sensor or an NMOS (n-Channel Metal-Oxide Semiconductor) image sensor. The generated image data is digitized by ADC (analog-digital converter) 111 . Predetermined image processing is performed by the controller 140 on the digitized image data. Predetermined image processing includes, for example, gamma correction processing, white balance correction processing, flaw correction processing, YC conversion processing, electronic zoom processing, and JPEG compression processing.

Image sensor 110 operates with timing controlled by timing generator 112 . The image sensor 110 generates still images, moving images, or through images for recording. A through image is mainly a moving image and corresponds to a live view image of the present disclosure. A through-the-lens image is displayed on the liquid crystal monitor 120 so that the user can decide the composition for capturing a still image. A function of displaying a through image generated in real time on the liquid crystal monitor 120 in this way is called “live view display”.

The liquid crystal monitor 120 displays images such as through images and various information such as menu screens. Other types of display devices, such as organic EL (Electro Luminescence) display devices, may be used instead of liquid crystal monitors.

The operation unit 130 includes a release button for instructing the start of shooting, a mode dial for setting the shooting mode, a power switch, and the like, which are provided on the upper surface of the camera body. The operation unit 130 also includes up, down, left, and right cursor buttons for selecting items and a SET button for confirming an input, which are provided on the rear surface of the camera body. Operation unit 130 also includes a touch panel that is superimposed on liquid crystal monitor 120 .

The card slot 170 can be loaded with a memory card 171 and controls the memory card 171 based on control from the controller 140 . The digital camera 10 can store image data in the memory card 171 and read image data from the memory card 171 .

A power supply 160 is a circuit that supplies power to each element within the digital camera 10 .

The body mount 150 can be mechanically and electrically connected to the lens mount of the interchangeable lens. That is, when the interchangeable lens attached to the camera body is capable of communicating with the camera body, the camera body 100 can transmit and receive data to and from the interchangeable lens 200 via the lens mount of the interchangeable lens. .

The camera body 100 includes a gyro sensor 184 (an example of a blur detection unit) for detecting blurring of the camera body 100 and a gyro sensor 184 as a configuration for realizing a BIS function (a function of correcting camera shake by shifting the image sensor 110). and a BIS processing unit 183 that controls the blur correction processing based on the detection result of . Further, the camera body 100 includes a sensor driving section 181 that moves the image sensor 110 and a position sensor 182 that detects the position of the image sensor 110 . The BIS processing unit 183 and the sensor driving unit 181 are an example of the shake correcting unit of the present disclosure.

The sensor driving section 181 can be realized by, for example, a magnet and a flat coil. One of the magnet and flat coil is fixed and the other is movable. The position sensor 182 is a sensor that detects the position of the image sensor 110 within a plane perpendicular to the optical axis of the optical system. The position sensor 182 can be implemented by, for example, magnets and Hall elements.

Based on the signal from the gyro sensor 184 and the signal from the position sensor 182, the BIS processing unit 183 controls the sensor driving unit 181 to orient the image sensor 110 perpendicularly to the optical axis so as to offset the shake of the camera body 100. Shift in-plane.

[1-2. interchangeable lens]
Interchangeable lens 200 includes an optical system and lens mount 250 . The optical system includes focus lens 210 and diaphragm 260 .

Interchangeable lens 200 of the present embodiment does not have a communication function with camera body 100 . Therefore, the lens mount 250 mechanically connects the interchangeable lens 200 to the camera body 100 . Also, the interchangeable lens 200 does not have a camera shake correction function.

[2. motion]
The operation of the digital camera 10 configured as described above during camera shake correction will be described.

Since the interchangeable lens 200 of the digital camera 10 does not have a camera shake correction function, the image sensor 110 is shifted in the camera body 100 to realize camera shake correction (BIS function).

In camera shake correction, the gyro sensor 184 detects the shake of the digital camera 10 and shifts the image sensor 110 by an amount corresponding to the amount of shake detected. At that time, the shift amount of the image sensor 110 needs to be determined according to the blur amount and the focal length of the interchangeable lens 200 . For example, even if the same blurring amount is detected by the gyro sensor 184, when an interchangeable lens with a large focal length is attached, camera shake is canceled more than when an interchangeable lens with a small focal length is attached. Therefore, it is necessary to shift the image sensor 110 by a larger amount. Therefore, the camera body 100 needs to recognize the focal length of the attached interchangeable lens.

If the interchangeable lens has a communication function, the camera body 100 can acquire focal length information from the interchangeable lens via the body mount 150 . However, in the case of an interchangeable lens that does not have a communication function like an old lens, it is not possible to obtain focal length information from the interchangeable lens. Therefore, in the present embodiment, the user manually inputs the focal length of the interchangeable lens 200 into the camera body 100 .

FIG. 2 is a diagram showing an example of a setting screen for setting the focal length of the interchangeable lens 200. As shown in FIG. The setting screen of FIG. 2 is displayed on the liquid crystal monitor 120 of the camera body 100 when setting the focal length. The setting screen is displayed superimposed on the live view image (that is, through image). The setting screen displays an input area 50 for reflecting the input of the focal length value, an enter key 54 for finalizing the input value, and a return key 56 for canceling the operation. there is A live view image is an image that displays in real time an image 90 of a subject captured by the image sensor 110 through the interchangeable lens 200 .

The user can input the value of the focal length in the input area 50 of the setting screen by changing the value using the up, down, left, and right cursor buttons. When the user touches the decision key 54 or presses the SET button provided on the rear surface of the camera body 100, the input value is confirmed as the final focal length setting value and saved. To cancel without confirming the input focal length value, the user may touch the return key 56 .

Note that, in the present embodiment, the liquid crystal monitor 120 has a touch panel that is the operation unit 130 . Therefore, when the user touches the setting screen, the liquid crystal monitor 120 accepts at least one input of the focal length value, determination, and cancellation. If liquid crystal monitor 120 does not have a touch panel, other operation unit 130 such as a button or dial may receive input of focal length value, determination, and cancellation. In this case, the liquid crystal monitor 120 may display the information received by the operation unit 130 so as to reflect the information on the setting screen.

Further, in the present embodiment, the value of the focal length itself is input to the input area 50 of the setting screen. However, information corresponding to the focal length may be input to the input area 50 instead of the focal length value itself. The information corresponding to the focal length may be, for example, one level when the focal length is divided into a plurality of levels. At least one of the focal length and the information corresponding to the focal length corresponds to the focal length information of the present disclosure.

In the present embodiment, when the SET button is pressed, the input focal length value is determined as the final focal length value. It is not an essential operation for confirmation. For example, if a predetermined period of time has elapsed after the focal length value was input, the input value may be determined, and the setting screen may disappear and the normal live view display may be displayed.

The digital camera 10 turns on the camera shake correction function when setting the focal length. In this embodiment, focal length information input by the user on the setting screen is immediately reflected in the camera shake correction function. As a result, the user can set the focal length while visually confirming the effect of camera shake correction on the live view image on which the setting screen is displayed. In the present disclosure, it is only necessary to confirm the effect of camera shake correction while the setting screen is displayed, and there may be a time lag before the input focal length information is reflected in the camera shake correction function.

FIG. 3 is a diagram illustrating a state in which an input focal length is reflected in camera shake correction in live view display. In FIG. 3A, the user inputs a value of 30.0 mm as the focal length on the focal length setting screen. At this time, the camera body 100 executes a camera shake correction operation according to the detected blur amount based on the value of the focal length of 30.0 mm.

However, if the focal length of the interchangeable lens 200 attached to the camera body 100 is actually 35.0 mm, camera shake correction is not performed with high accuracy. Image 90 is displayed. By visually recognizing the blurred subject image 90 displayed on the liquid crystal monitor 120, the user can understand that the input focal length is not appropriate, and inputs a more appropriate focal length value (here, 35.0 mm). can do.

As a result, as shown in FIG. 3B, a subject image 90 without image blur can be confirmed. In this state, when the user operates the enter key 54 , the input “35.0 mm” is determined as the focal length value and stored in the flash memory 142 as focal length information of the interchangeable lens 200 .

In this manner, the user can set the focal length information of the interchangeable lens while viewing the live view image displayed on the liquid crystal monitor 120 . Therefore, the user can immediately check the influence of the focal length set by the user on the camera shake correction, and can easily and quickly set a more appropriate focal length.

The focal length setting process for the camera body 100 is executed when the power of the digital camera 10 is turned on or in response to a user's operation. FIG. 4 is a flowchart showing processing when the power of the digital camera 10 is turned on. Referring to FIG. 4, focal length setting processing executed when the digital camera 10 is powered on will be described.

In FIG. 4, when the power of the digital camera 10 is turned on, the controller 140 of the camera body 100 performs an initial setting operation with a live view image displayed on the liquid crystal monitor 120 (S1). This initial setting operation includes an operation of acquiring lens information unique to the interchangeable lens from the interchangeable lens attached to the camera body 100 . The lens information includes information indicating the focal length of the lens.

After completing the initial setting operation, the controller 140 determines whether information indicating the focal length has been obtained from the interchangeable lens (S2).

If the information indicating the focal length can be acquired from the interchangeable lens (YES in S2), the controller 140 shifts to shooting mode (S4). If the interchangeable lens attached to the camera body 100 has a communication function, the camera body 100 can acquire lens information from the interchangeable lens in the initial setting operation. Therefore, in this case, the mode is shifted to the shooting mode.

On the other hand, if the information indicating the focal length cannot be acquired from the interchangeable lens (NO in S2), the controller 140 executes focal length setting processing for the user to input the focal length of the interchangeable lens (S3). . If an interchangeable lens attached to the camera body 100, such as the interchangeable lens 200 of the present embodiment, does not have a communication function, the camera body 100 cannot acquire lens information from the interchangeable lens in the initial setting operation. Can not. In this case, the controller 140 executes a focal length setting process (step S3).

Note that the focal length setting process (step S3) is not limited to when the power of the digital camera 10 is turned on, and is also executed when the user selects the item "set focal length" from the menu screen.

FIG. 5 is a flowchart relating to the focal length setting process (step S3 in the flowchart of FIG. 4).

In FIG. 5, first, the controller 140 starts the shake correction operation (S11). In the camera shake correction operation, the BIS processing unit 183 controls the sensor driving unit 181 to shift the image sensor 110 based on the detection signal from the gyro sensor 184 .

The controller 140 displays a focal length setting screen as shown in FIG. 2 (S12). The focal length setting screen is displayed superimposed on the live view image. The setting screen is a screen on which a focal length input area 50, an enter key 54, and a return key 56 are displayed. A live view image is an image captured by the image sensor 110 through the interchangeable lens 200 . Therefore, the live view image is an image in which the camera shake correction function is reflected in real time.

The controller 140 determines whether the focal length value input by the user has changed (S13).

If there is a change in the input focal length value, that is, if the user sets a new focal length value (YES in S13), the controller 140 updates the new focal length value currently set on the setting screen. The value of the focal length is reflected in the image stabilization operation (S14).

After that, the controller 140 detects whether or not the user has performed an operation to confirm the input value of the focal length (S15). Specifically, it is determined whether the decision key 54 (or the SET button) has been operated on the setting screen. If there is no operation to confirm the input value of the focal length (NO in S15), that is, if there is no operation of the decision key 54 (or the SET button), the controller 140 repeats the above processing until the confirmation operation is performed (S13). ~S15).

On the other hand, when the user confirms the input value of the focal length (YES in S15), that is, when the enter key 54 (or the SET button) is operated, the controller 140 performs the setting via the setting screen. , the value displayed on the setting screen is confirmed as the set value of the focal length and stored in the flash memory 142 (S16).

After that, the controller 140 stops the shake correction operation (S17). In this embodiment, after step S17, when the release button is half-pressed, the input focal length information is used to start camera shake correction. Therefore, once the input of the focal length information is confirmed, the camera shake correction operation is stopped (step S17). Such stopping of the camera shake correction operation (step S17) is an example, and the camera shake correction operation does not have to be stopped. That is, step S17 may be omitted. Specifically, camera shake correction may be performed whenever a live view image is displayed. In this case, when the initial setting (step S1) of FIG. 4 is started, the camera shake correction operation is also started, so the start of the camera shake correction operation after the start of the initial setting (step S11 of FIG. 5) is omitted. Further, after the focal length information is determined (YES in step S15 of FIG. 5) and stored (step S16), the camera shake correction operation is continued without being stopped. Further, the user may be able to set from the menu screen whether to always correct camera shake or to correct camera shake after the release button is half-pressed.

As described above, the user can check the effectiveness of camera shake correction reflecting the value of the focal length on the live view image on which the focal length setting screen is superimposed. That is, since the focal length value can be adjusted while confirming the effect of camera shake correction, a more appropriate focal length value can be set.

The digital camera 10 may display an indicator that quantitatively displays the amount of blurring on the focal length setting screen so that the user can better recognize the effect of camera shake correction. FIG. 6 is a diagram showing an example of a blur amount indicator that quantitatively displays the amount of blur. A blurring amount indicator 60 shown in FIG. 6 indicates the magnitude of the blurring amount of an image after camera shake correction by the number of colored blocks. FIG. 7 is a diagram showing changes in the shake amount indicator 60. As shown in FIG. FIG. 7A shows the display state of the blur amount indicator 60 when the amount of blur in the image after camera shake correction is relatively large. (B) of FIG. 7 shows the display state of the blur amount indicator 60 when the blur amount of the image after camera shake correction is relatively small. In this manner, the blur amount indicator 60 changes its display state according to the amount of image blur. By referring to such a shake amount indicator 60, the user can easily grasp the effect of camera shake correction.

FIG. 8 is a flowchart of focal length setting processing when the blur amount indicator 60 is displayed. In this flowchart, processing for displaying a blurring amount indicator (step S12b) is added to the flowchart shown in FIG. The controller 140 obtains a motion vector for each frame of the captured image, and obtains a difference in motion vector between the frames to calculate the amount of blurring. Then, the controller 140 changes the display state of the blur amount indicator according to the magnitude of the calculated blur amount. A motion vector of a frame can be calculated using a known technique (see, for example, Japanese Unexamined Patent Application Publication No. 2017-219635). In this manner, the controller 140 obtains the amount of blurring based on the motion vector difference between frames, thereby accurately obtaining the magnitude of image blurring that occurs after camera shake correction.

In order to make it easier for the user to recognize the degree of image blur on the focal length setting screen, all or part of the live view image superimposed on the focal length setting screen is enlarged and displayed. good too. FIG. 9 is a diagram illustrating a state in which a partial area is enlarged on the focal length setting screen. For example, when a predetermined operation is performed while the focal length setting screen is displayed as shown in FIG. 2, the image may be enlarged as shown in FIG. In the example of FIG. 9, an image of a partial area in the center of the live view image on which the setting screen is superimposed is enlarged and displayed. In such an enlarged image 62, since the camera shake is also enlarged and displayed, the user can more easily recognize the camera shake. Note that the area to be enlarged may be the center of the live view image, or may be another portion. For example, the area to be enlarged may be a portion where a person's face is displayed, or an arbitrary portion selected by the user. When the user selects an arbitrary portion, the user may select by touching the arbitrary portion, or may select by moving the frame displayed on the screen to the desired portion. The initial position of the frame (that is, the position before it is moved by the user) may be within the live-view image or may be on the periphery of the live-view image. The frame may be moved via a touch panel, cross key, joystick, or the like.

In addition, in setting (inputting) the focal length, the user may be able to select from focal length setting values set in the past. Therefore, the controller 140 registers the focal length value set by the user in the past. The registered setting values are saved in the flash memory 142 . FIG. 10 is a diagram illustrating an example of a focal length setting screen that allows the user to select one value from a plurality of registered focal length values set in the past. On the setting screen shown in FIG. 10, three values of "25 mm", "35 mm", and "50 mm" are registered. The user can select one of the icons 66a to 66c of '25 mm', '35 mm', and '50 mm' via the operation unit 130 (for example, up and down cursor buttons) or by touch operation.

FIG. 11 is a diagram showing an example of a setting screen when registering the set value of the focal length. Here, as an example, it is assumed that up to three setting values can be registered. In the example of FIG. 11, three values of "25 mm", "35 mm" and "50 mm" have already been registered. The user can register the set value input in the input area 50 by touching the registration button 58 or operating the SET button. If three setting values have already been registered, the setting value to be deregistered is specified manually or automatically in place of the newly registered value. For example, in the example of FIG. 11, when the registered "50 mm" is specified as the value for unregistering and the register button 58 is operated, the currently input value of "55 mm" is changed to the registered "50 mm". registered instead. By enabling the user to select one of a plurality of values set in the past in this manner, the operation of inputting the focal length can be expedited, and the user's convenience can be improved.

[3. effect, etc.]
As described above, the digital camera 10 or the camera body 100 of this embodiment is an imaging device to which the interchangeable lens 200 can be attached. The digital camera 10 or camera body 100 detects an image sensor 110 (an example of an imaging element) that generates image data based on an image formed through an interchangeable lens 200, and the digital camera 10 or camera body 100. A gyro sensor 184 (an example of a blur detection unit), a BIS processing unit 183 and a sensor driving unit 181 (shake detection unit) that perform a camera shake correction operation by moving the imaging device 110 based on the detected amount of camera shake and the focal length of the interchangeable lens 200 an example of a correction unit); a liquid crystal monitor 120 (an example of a display unit) that displays a setting screen for inputting focal length information, which is at least one of the focal length of the interchangeable lens 200 and information corresponding to the focal length; A controller 140 (an example of a control unit) that controls the liquid crystal monitor 120, the sensor driving unit 181, and the BIS processing unit 183 is provided. Here, an image generated based on image data generated in real time by the image sensor 110 is called a live view image. The controller 140 causes the LCD monitor 120 to display the setting screen superimposed on the live view image. To reflect.

When the focal length information is input as described above, the input focal length information is reflected on the setting screen and further reflected on the live view image. can decide if it is appropriate. When the user determines that camera shake is not sufficiently corrected in the live view image, he or she can change the focal length information while looking at the setting screen so that the effect of camera shake correction based on the newly input focal length information can be obtained. You can check it immediately. Therefore, the user can set appropriate focal length information.

Further, the controller 140 may cause the liquid crystal monitor 120 to display a blur amount indicator 60 that quantitatively indicates the amount of blur in the live view image on the setting screen (see FIGS. 6 and 7). This allows the user to easily recognize the effect of camera shake correction.

Further, the controller 140 may cause the liquid crystal monitor 120 to display an enlarged area of at least a part of the live view image on which the setting screen is superimposed (see FIG. 9). This allows the user to easily recognize the effect of camera shake correction.

Further, the controller 140 may cause the liquid crystal monitor 120 to display at least one piece of focal length information set in the past on the setting screen. Then, the controller 140 may input the focal length information selected by the user from the displayed focal length information as the focal length information of the interchangeable lens 200 (see FIG. 10). As a result, the user's convenience in inputting the focal length can be improved.

Further, the controller 140 may reflect the input focal length information in the camera shake correction operation in the sensor driving unit 181 and the BIS processing unit 183 before the setting screen accepts the determination of the input focal length information. As a result, the user can adjust the focal length information to be input while confirming the effect of camera shake correction on the live view image. Alternatively, the user can determine the focal length information to be input while confirming the effect of camera shake correction on the live view image.

Digital camera 10 or camera body 100 of the present embodiment is an imaging device to which interchangeable lens 200 can be attached. The digital camera 10 or camera body 100 detects an image sensor 110 (an example of an imaging element) that generates image data based on an image formed through an interchangeable lens 200, and the digital camera 10 or camera body 100. A gyro sensor 184 (an example of a blur detection unit), a BIS processing unit 183 that performs a camera shake correction operation by moving the image sensor 110 based on the detected blur amount and the focal length of the interchangeable lens 200, and a sensor driving unit 181 (a camera shake detector). an example of a correction unit); a liquid crystal monitor 120 (an example of a display unit) that displays a setting screen for inputting focal length information, which is at least one of the focal length of the interchangeable lens 200 and information corresponding to the focal length; A controller 140 (an example of a control unit) that controls the liquid crystal monitor 120, the BIS processing unit 183, and the sensor driving unit 181 is provided. The controller 140 causes the liquid crystal monitor 120 to display a blur amount indicator 60 (an example of information that quantitatively indicates the amount of blur in the live view image) on the setting screen. A live view image is generated based on image data generated by the image sensor 110 in real time.

(Other embodiments)
The idea of the above embodiments is not limited to the embodiments described above. Various embodiments may be considered. Other embodiments to which the concept of the above embodiments can be applied will be described below.

In the above embodiment, the blur amount indicator 60 is shown as information that quantitatively indicates the magnitude of blur in the live view image. The blur amount indicator 60 is an example, and information in other display formats may be displayed as long as it quantitatively indicates the magnitude of blur.

In the example shown in FIGS. 10 and 11, the digital camera 10 registers three focal length setting values and enables selection from among them, but the number of setting values that can be registered and selected is three. is not limited to Also, only the set value of the focal length is registered, but the lens name of the interchangeable lens may be registered in association with the set value of the focal length. In this case, by displaying the lens name of the interchangeable lens together with the focal length setting value on the setting screen shown in FIG. 10, the user's convenience when selecting the focal length setting value is increased.

The embodiment has been described above as an example of the technique of the present disclosure. To that end, the detailed description and accompanying drawings have been disclosed. Therefore, the components described in the detailed description and the attached drawings may include components that are not essential for solving the problem. Therefore, the inclusion of such non-essential elements in the detailed description and accompanying drawings should not be immediately an admission that those non-essential elements are essential.

The above embodiment is for illustrating the technology in the present disclosure. Therefore, various changes, substitutions, additions and/or omissions may be made to the above embodiment within the scope of the claims or equivalents thereof.

The idea of the present disclosure can be applied to an imaging device to which an interchangeable lens can be attached and which has a camera shake correction function.

10 digital camera (imaging device)
60 blur amount indicator 100 camera body 110 image sensor (imaging device)
140 controller (control unit)
150 Body mount 184 Gyro sensor (shake detector)
181 sensor drive unit (shake correction unit)
182 position sensor 183 BIS processing unit (shake correction unit)
200 interchangeable lens 210 focus lens 250 lens mount 260 diaphragm

Claims (7)

An imaging device to which an interchangeable lens can be attached,
an imaging device that generates image data based on an image formed through the interchangeable lens;
a blur detection unit that detects a blur amount of the imaging device;
a camera shake correction unit that performs a camera shake correction operation by moving the imaging element based on the detected blur amount and the focal length of the interchangeable lens;
a display unit for displaying a setting screen for inputting focal length information, which is at least one of the focal length of the interchangeable lens and information corresponding to the focal length;
a control unit that controls the display unit and the camera shake correction unit;
An image generated based on the image data generated in real time by the imaging device is a live view image;
The control unit
In a state where the setting screen is superimposed on the live view image and displayed on the display unit,
An imaging apparatus, wherein the focal length information input to the setting screen is reflected in the camera shake correction operation in the camera shake correction unit, and the live view image is an image after the camera shake correction operation . 2. The imaging apparatus according to claim 1, wherein said control unit causes said display unit to display information quantitatively indicating the magnitude of blurring of said live view image on said setting screen. 2. The imaging apparatus according to claim 1, wherein when causing said display unit to display said setting screen, said control unit causes said live view image to be displayed by enlarging at least a partial region thereof. The control unit
causing the display unit to display at least one piece of focal length information set in the past on the setting screen;
2. The imaging apparatus according to claim 1, wherein focal length information selected by a user from the displayed focal length information is input as the focal length information of the interchangeable lens. 2. The method according to claim 1, wherein said control unit reflects said input focal length information in said image stabilization operation in said image stabilization unit before accepting determination of said focal length information input to said setting screen. Imaging device. An imaging device to which an interchangeable lens can be attached,
an imaging device that generates image data based on an image formed through the interchangeable lens;
a blur detection unit that detects a blur amount of the imaging device;
a camera shake correction unit that performs a camera shake correction operation by moving the imaging element based on the detected blur amount and the focal length of the interchangeable lens;
a display unit for displaying a setting screen for inputting focal length information, which is at least one of the focal length of the interchangeable lens and information corresponding to the focal length;
a control unit that controls the display unit and the camera shake correction unit;
An image generated based on the image data generated in real time by the imaging device is a live view image;
The control unit
In a state where the setting screen is superimposed on the live view image and displayed on the display unit,
The focal length information input to the setting screen is reflected in the image stabilization operation in the image stabilization unit, and the amount of blur in the live view image after the image stabilization operation is quantitatively determined on the setting screen. to display information that indicates
Imaging device. 7. The imaging device according to claim 1, wherein said interchangeable lens is a lens that does not have a communication function with respect to said imaging device.

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