JP2016206250A - Display device, display control method, and imaging device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device, a display control method, and an imaging device for facilitating the adjustment of a focus.SOLUTION: A display device 2 includes: a storage control part 254 for causing a storage part 24 to store a target focus position as a target of a focus position to be used in photography in an imaging device input by a user; a focus data acquisition part 253 for acquiring use focus data indicating a use focus position to be used in photography; an image data acquisition part 252 for acquiring image data generated by photographing a subject by using the use focus position; and an image display part 255 for causing a display part 23 to display the target focus position and the use focus position in an overlapped manner on a display image based on the image data.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a display device that displays an image, an image display control method, and an imaging device.

  2. Description of the Related Art Conventionally, a method for displaying information on a focused position on a display when photographing a subject using an imaging device such as a digital camera or a digital video camera is known. Patent Document 1 discloses an imaging device that detects a distance to a subject during photographing of the subject and displays an image indicating a relationship between the position of the subject in the optical axis direction of the imaging device and a focused position. Yes.

JP 2010-93422 A

  In a shooting site where it is necessary to adjust the focus with high accuracy, such as when shooting a movie, a person in charge of adjusting the focus (hereinafter referred to as “user”) manually adjusts the focus of the imaging apparatus. In the prior art, since the focused position is displayed, the user checks whether or not the desired position is in focus during shooting, and if the desired position is not in focus, The focus can be adjusted.

  However, in the method described in Patent Document 1, when there are a plurality of subjects in a region to be photographed, the positions of the plurality of subjects are displayed on the screen. Therefore, it is difficult for the user to instantly determine which subject to focus on, and it may take a long time to adjust the focus or focus on the wrong subject. was there.

  Accordingly, the present invention has been made in view of the above-described points, and an object thereof is to facilitate focus adjustment.

  In order to solve the above-described problem, a display device of the present invention includes a storage control unit that stores a target focus position, which is a target of a focus position used at the time of photographing in an imaging device, input by a user in a storage unit, Use focus data acquisition means for acquiring use focus data indicating a use focus position used for shooting in the imaging device, and image data generated by the imaging device shooting a subject using the use focus position. The image data acquisition means for acquiring, and the image display means for displaying the target focus position and the used focus position on the display means superimposed on a display image based on the image data.

  According to the present invention, it is possible to easily adjust the focus.

It is a figure which shows the structure of the imaging | photography system S which concerns on 1st Embodiment. It is a figure which shows the image for focus adjustments which the display apparatus 2 displays. 1 is a diagram illustrating a configuration of an imaging apparatus 1. FIG. 3 is a diagram showing a configuration of a display device 2. FIG. It is a figure which shows a target focus position table. It is a figure which shows the image 201 for focus adjustment which displayed the several target position image 202. FIG. It is a figure which shows the image 201 for focus adjustment which displayed the several target position image 202. FIG. 4 is a flowchart illustrating a processing procedure in the display device 2. It is a figure which shows the example of the screen which the display apparatus 2 which concerns on 2nd Embodiment displays. It is a figure which shows the target focus position table which concerns on 2nd Embodiment. It is a flowchart which shows the procedure of the process in 2nd Embodiment. It is a figure which shows the structure of the imaging device 1 which concerns on 3rd Embodiment.

<First Embodiment>
[Outline of the shooting system S]
FIG. 1 is a diagram illustrating a configuration of an imaging system S according to the first embodiment. The shooting system S is a system used for shooting movies, for example. The imaging system S includes an imaging device 1, a display device 2, and a remote controller 3.

  The imaging device 1 is a video camera that generates moving image or still image data by photographing a subject. The imaging device 1 is connected to the remote control 3 via a cable, and the user uses the focus ring provided on the imaging device 1 or the remote control 3 to select a position where focus is achieved (hereinafter referred to as “focus position”). Can be adjusted. The focus position is represented by the distance between the lens of the imaging device 1 and the focused subject.

  The imaging device 1 generates an image signal including image data, and transmits the generated image signal to the display device 2 via the transmission path 4. The transmission path 4 corresponds to, for example, SDI (Serial Digital Interface), and is configured by a coaxial cable capable of transmitting digital video and digital audio. The imaging device 1 transmits use focus data indicating a use focus position, which is a focus position used for photographing a subject, to the display device 2 using an ancillary data area in an SDI-compatible image signal.

  The display device 2 is, for example, a liquid crystal display or an organic EL (Electro Luminescence) display. The display device 2 displays a display image based on the image data included in the image signal received from the imaging device 1. For example, the user can measure the distance to the subject during the rehearsal, and set the target focus position, which is the target of the focus position used during the actual shooting, on the display device 2 based on the measured distance. The display device 2 displays a focus adjustment image indicating the target focus position set by the user and the used focus position received from the imaging device 1.

  FIG. 2 is a diagram illustrating a focus adjustment image displayed on the display device 2. As shown in FIG. 2A, the display device 2 displays a focus adjustment image 201 together with the subject H. The focus adjustment image 201 includes a scale image indicating a distance from 0 m to infinity (∞), a target position image 202 (black triangle image) indicating a target focus position, and a use position image 203 indicating a use focus position. (White triangular image).

  The user can adjust the focus position of the imaging apparatus 1 by operating the remote controller 3 while viewing the focus adjustment image 201 shown in FIG. When the focus position of the imaging device 1 is changed by the user operating the remote controller 3, data indicating the changed focus position is transmitted from the imaging device 1 to the display device 2. The display device 2 changes the position of the use position image 203 based on the use focus position indicated by the received data. Specifically, as shown in FIG. 2B, the display device 2 uses the user device after adjusting the focus position from the use position image 203 a indicating the use focus position before the user adjusts the focus position. The display is switched to the use position image 203b indicating the focus position.

As shown in FIG. 2B, the user grasps that the target focus position can be adjusted by confirming that the position of the use position image 203b substantially matches the position of the target position image 202. can do. As described above, in the photographing system S, the focus position set as the target and the focus position used by the imaging apparatus 1 are displayed on the display apparatus 2 connected to the imaging apparatus 1, so that the user can The focus position used in the imaging apparatus 1 can be easily adjusted to a desired position.
Hereinafter, the configurations of the imaging device 1 and the display device 2 will be described in detail.

[Configuration of Imaging Device 1]
FIG. 3 is a diagram illustrating a configuration of the imaging apparatus 1. The imaging device 1 includes a lens unit 11, an imaging unit 12, a remote control IF (interface) unit 13, an image signal output unit 14, a display unit 15, a storage unit 16, and a control unit 17. The control unit 17 includes an operation reception unit 171, a focus control unit 172, an image processing unit 173, and an image signal generation unit 174.

The lens unit 11 includes a lens and a driving unit that moves the lens in the optical axis direction. The lens unit 11 can change the focus position when the driving unit moves the position of the lens based on the control by the control unit 17.
The imaging unit 12 generates an imaging signal by performing photoelectric conversion on an image of a subject formed on the imaging surface based on light incident through the lens unit 11. The imaging unit 12 is, for example, a CCD or a CMOS sensor.

  The remote control IF unit 13 is connected to the remote control 3 via a cable, and receives operation data indicating the operation content input by the user on the remote control 3. For example, the remote control IF unit 13 receives operation data for designating a focus position used for photographing from the remote control 3 and notifies the operation reception unit 171 of the received data.

The image signal output unit 14 is an interface for outputting an image signal including image data based on the imaging signal generated by the imaging unit 12 to the display device 2. The image signal output unit 14 outputs an SDI-compatible image signal including use focus data indicating a focus position used when the image pickup unit 12 generates an image pickup signal in an ancillary data area. The image signal output unit 14 outputs an image signal including image data to the display unit 15.
The display unit 15 is, for example, a liquid crystal display or an organic EL display. The display unit 15 displays a display image based on the image signal input from the image signal output unit 14.

  The storage unit 16 is a storage medium such as a ROM and a RAM. The storage unit 16 stores a program executed by the control unit 17. The storage unit 16 temporarily stores various data generated by the control unit 17.

The control unit 17 is, for example, a CPU, and operates as an operation reception unit 171, a focus control unit 172, an image processing unit 173, and an image signal generation unit 174 by executing a program stored in the storage unit 16.
The operation reception unit 171 receives a user operation input via the remote control IF unit 13. For example, the operation reception unit 171 receives operation data specifying a focus position, and notifies the focus control unit 172 of the received operation data.

  The focus control unit 172 adjusts the focus position used by the imaging apparatus 1 by controlling the driving unit of the lens unit 11 based on the operation data specifying the focus position received by the operation receiving unit 171. The focus control unit 172 notifies the image signal generation unit 174 of use focus data indicating the adjusted focus position.

  The image processing unit 173 generates image data based on the imaging signal generated by the imaging unit 12, and performs image processing such as color correction and gamma correction, and compression processing on the generated image data. The image processing unit 173 outputs the image data after the image processing and the compression processing to the image signal generation unit 174.

  The image signal generation unit 174 generates an image signal including use focus data input from the focus control unit 172 and image data input from the image processing unit 173. Specifically, the image signal generation unit 174 generates an SDI-compatible image signal including use focus data in the ancillary data area. The image signal generation unit 174 outputs the generated image signal to the image signal output unit 14 and the display unit 15.

[Configuration of Display Device 2]
FIG. 4 is a diagram illustrating a configuration of the display device 2. The display device 2 includes an image signal input unit 21, an operation unit 22, a display unit 23, a storage unit 24, and a control unit 25. The control unit 25 includes an operation reception unit 251, an image data acquisition unit 252, a focus data acquisition unit 253, a storage control unit 254, and an image display unit 255.

  The image signal input unit 21 is an interface that receives an input of the image signal output from the image signal output unit 14. The image signal input unit 21 decodes the input image signal and outputs the decoded image signal to the image data acquisition unit 252 and the focus data acquisition unit 253.

  The operation unit 22 is input means such as an operation panel, operation buttons, or a touch panel used for an operation for a user to set data in the display device 2. The operation unit 22 notifies the operation reception unit 251 of operation data indicating the user's operation content. The user can perform operations such as start of recording of target focus data, start of reproduction, and stop of reproduction via the operation unit 22. Further, the user can set target focus data, which is a target of the focus position used in the imaging apparatus 1, via the operation unit 22 when recording of the target focus data is started.

  The display unit 23 displays a display image based on the image data output from the image display unit 255. The display unit 23 is, for example, a liquid crystal display or an organic EL display.

  The storage unit 24 is a storage medium such as a ROM and a RAM. The storage unit 24 stores a program executed by the control unit 25. The storage unit 24 temporarily stores various data output from the control unit 25. For example, the storage unit 24 stores target focus data input by the user via the operation unit 22.

  The control unit 25 is a CPU, for example, and executes an operation reception unit 251, a storage control unit 254, an image data acquisition unit 252, a focus data acquisition unit 253, and an image display unit by executing a program stored in the storage unit 24. It operates as 255.

  The operation receiving unit 251 receives operation data indicating the user's operation content via the operation unit 22. For example, when receiving the operation data for starting the setting of the target focus data input by the user, the operation receiving unit 251 notifies the storage control unit 254 that the setting of the target focus data is started. Thereafter, the operation receiving unit 251 sequentially receives the target focus data and outputs the received target focus data to the storage control unit 254. When the operation receiving unit 251 receives an operation for starting or ending the reproduction operation for displaying the focus adjustment image 201 illustrated in FIG. 2 and an operation for switching target focus data, the operation receiving unit 251 displays the contents of these operations. The image display unit 255 is notified.

  The operation receiving unit 251 may receive data indicating the elapsed time from the reference time (for example, the time to start the reproduction operation of the focus adjustment image 201) together with the target focus data. For example, the operation reception unit 251 displays a screen for inputting data indicating elapsed time on the display unit 23, and after receiving input of data indicating elapsed time, displays a screen for inputting target focus data. By displaying on the display unit 23, the input of the target focus data is received in association with the elapsed time.

  The image data acquisition unit 252 acquires image data included in the image signal input from the image signal input unit 21. In other words, the image data acquisition unit 252 acquires image data generated by the imaging device 1 shooting a subject using a focus position corresponding to the use focus data acquired by the focus data acquisition unit 253. The image data acquisition unit 252 outputs the acquired image data to the image display unit 255.

  The focus data acquisition unit 253 acquires use focus data included in the image signal input from the image signal input unit 21. The focus data acquisition unit 253 outputs the acquired use focus data to the image display unit 255.

  The storage control unit 254 causes the storage unit 24 to store the target focus position input from the operation reception unit 251. The storage control unit 254 stores a plurality of target focus data in the storage unit in association with the order used in image capturing in the imaging device 1.

  For example, when the storage control unit 254 receives a notification from the operation accepting unit 251 to start setting the target focus data, the storage control unit 254 resets the serial number of the target focus data to 1. Thereafter, the storage control unit 254 stores the target focus data in the storage unit 24 in association with the serial number every time the target focus data is received from the operation receiving unit 251. The storage control unit 254 increments the serial number by one each time the target focus data is stored in the storage unit 24.

  By doing so, a target focus position table in which the serial number and target focus data are associated with each other is generated in the storage unit 24 as shown in FIG. When the operation accepting unit 251 accepts an input of data indicating the elapsed time from the reference time, the storage control unit 254, as shown in FIG. 5B, the elapsed time from the reference time, the target focus position, May be stored in the storage unit 24 in association with each other.

  When the image display unit 255 receives a notification from the operation reception unit 251 to start reproduction of the target focus data, the image display unit 255 uses the focus data input from the focus data acquisition unit 253 and the target focus stored in the storage unit 24. Based on the data, the focus adjustment image 201 shown in FIG. 2 is generated, and the generated focus adjustment image 201 is displayed on the display unit 23. The image display unit 255 corresponds to the screen illustrated in FIG. 2 by superimposing the focus adjustment image 201 including the target position image 202 and the use position image 203 on the image data input from the image data acquisition unit 252. Display image data is generated.

  The image display unit 255 updates the focus adjustment image 201 every time new focus data is acquired from the focus data acquisition unit 253. In this way, the use position image 203 in the focus adjustment image 201 moves as shown in FIG. 2B in response to the user changing the focus position. It is possible to grasp the focus position in real time.

  The image display unit 255 may switch the target position image 202 included in the focus adjustment image 201 according to the target change operation by the user input via the operation unit 22. For example, when the operation receiving unit 251 receives a target change operation after displaying the target position image 202 corresponding to the serial number 1, the image display unit 255 deletes the target position image 202 corresponding to the serial number 1. Then, a focus adjustment image 201 including the target position image 202 corresponding to the serial number 2 is generated.

  The image display unit 255 may display a plurality of target focus positions on the display unit 23 in association with information indicating the order of use. For example, the image display unit 255 displays the serial number stored in the storage unit 24 in association with the target focus position in the vicinity of each of the plurality of target position images 202.

  FIG. 6 is a diagram showing a focus adjustment image 201 including a plurality of target position images 202. In FIG. 6, among the plurality of target focus positions included in the target focus position table shown in FIG. 5, targets corresponding to three focus positions (8 m, 3 m, 6 m) with serial numbers 1 to 3 are shown. A position image 202 is displayed. As described above, the image display unit 255 may cause the display unit 23 to display the number of target focus positions set in advance by the user among the plurality of target focus positions included in the target focus position table.

  In the upper part of each target position image 202 in FIG. 6, numbers (1), (2), and (3) indicating the order in which the target focus positions are used are displayed. It can be understood that it is necessary to change the focus position in the order of the numbers. Accordingly, for example, the user can grasp that the focus position needs to be changed to 3 m during the shooting while setting the focus position to 8 m, which is the first target focus position. The focus position can be quickly changed at the timing of switching.

  As shown in FIG. 7, the image display unit 255 may display an arrow indicating the order of switching the target focus position in the vicinity of the target position image 202. By doing in this way, the user can grasp the direction to change the focus position. The image display unit 255 can further improve the operability by displaying an arrow in the same direction as the operation direction when the focus position is changed on the remote controller 3.

  The image display unit 255 may stop displaying the target focus data that is within a predetermined range from the use focus data among the plurality of target focus data displayed on the display unit 23. For example, the image display unit 255, when the time within the predetermined range from the position of the use position image 203 among the plurality of target position images 202 displayed on the display unit 23 continues for a predetermined time or more, Since it is considered that the positions are correct, the target position image 202 is deleted. The image display unit 255 may display the target position image 202 in the next order on the display unit 23 at the same time as the target position image 202 is deleted or after the target position image 202 is deleted. In this way, when the image display unit 255 displays a plurality of target position images 202, the user does not have to look at the unnecessary target position images 202, so that the operability is further improved.

[Procedure for Processing in Display Device 2]
FIG. 8 is a flowchart illustrating a processing procedure in the display device 2. Before the user starts shooting with the focus adjustment image 201 displayed on the display device 2, the operation reception unit 251 receives input of target focus data. Specifically, the operation reception unit 251 monitors whether target focus data has been input (S11), and when the target focus data has been input (Yes in S11), acquires the input target focus data. (S12). The operation reception unit 251 sequentially stores the input target focus data in the storage unit 24 (S13).

  The operation reception unit 251 monitors whether or not an operation for starting the reproduction operation for displaying the focus adjustment image 201 has been performed (S14), and while the operation for starting the reproduction operation is not performed (No in S14). , S11 to S13 are repeated. If the operation receiving unit 251 determines in S14 that an operation for starting the reproduction operation has been performed (Yes in S14), the operation reception unit 251 notifies the image display unit 255 that the reproduction operation is started. When the image display unit 255 receives a notification to start the reproduction operation, the image display unit 255 reads the target focus data stored in the storage unit 24 and includes a target position image 202 corresponding to the read target focus data. 201 is displayed on the display unit 23 (S15).

  Thereafter, the image display unit 255 monitors whether the use focus data is superimposed on the image signal received by the image signal input unit 21, and the focus data acquisition unit 253 acquires the use focus data (S16). . When the focus data acquisition unit 253 acquires the use focus data (Yes in S16), the image display unit 255 displays the focus adjustment image 201 being displayed on the display unit 23 as the use position image corresponding to the acquired use focus data. The image is updated to the focus adjustment image 201 including 203 (S17). If the focus data acquisition unit 253 has not acquired use focus data in S16 (No in S16), the image display unit 255 proceeds to S18.

  Subsequently, the image display unit 255 confirms whether or not it is necessary to switch to the next target focus data (S18). For example, when the image display unit 255 receives a notification from the operation receiving unit 251 that an operation to switch to the next target focus data has been received (Yes in S18), the image display unit 255 proceeds to S19 and displays the next target focus data on the display unit. 23 is displayed (S19). If the image display unit 255 has not received a notification from the operation receiving unit 251 in S18 that an operation to switch to the next target focus data has been received (No in S18), the process proceeds to S20.

  When the elapsed time from the reference time is stored in the storage unit 24 in association with the target focus data, the image display unit 255 starts displaying the target position image 202 on the display unit 23 in S18. When the elapsed time from the time coincides with the elapsed time stored in the storage unit 24, the process proceeds to S19, and the target position image 202 corresponding to the target focus position associated with the elapsed time is displayed on the display unit 23. May be displayed.

  When the image display unit 255 receives a notification from the operation reception unit 251 that an operation for ending the reproduction operation has been received (Yes in S20), the image display unit 255 ends the reproduction operation. If the image display unit 255 has not received a notification from the operation reception unit 251 that the operation for ending the reproduction operation has been received (No in S20), the image display unit 255 returns to S16 and updates the use focus data each time. The focus adjustment image 201 is updated.

[Effect in the first embodiment]
As described above, in the imaging system S according to the first embodiment, the storage control unit 254 stores the target focus position, which is the target of the focus position used at the time of shooting in the imaging apparatus 1, input by the user. Store in the unit 24. Then, when shooting using the imaging device 1, the image display unit 255 reads out the target focus position from the storage unit 24, and the use position image indicating the use focus position used for shooting acquired from the imaging device 1. A focus adjustment image 201 including 203 and a target position image 202 indicating the target focus position is displayed on the display unit 23. In this way, the user can easily adjust the focus position of the imaging apparatus 1 to the target focus position set based on the distance to the subject that has been measured in advance during the rehearsal.

  In the above description, the example in which the user inputs the target focus data before starting the reproduction operation has been described. However, the timing for inputting the target focus data is arbitrary. For example, the operation receiving unit 251 may receive an input of target focus data while the image display unit 255 displays the focus adjustment image 201. In this case, the storage control unit 254 may add the input target focus data to the target focus position table stored in the storage unit 24, or may update the target focus data designated by the user.

<Second Embodiment>
The display device 2 according to the first embodiment does not change the size of the image displayed on the display unit 23 even when the user adjusts the use focus position to the target focus position. On the other hand, the display device 2 according to the second embodiment is the first in that the image displayed on the display unit 23 is enlarged when the use focus position falls within a predetermined range from the target focus position. This is different from the display device 2 according to the embodiment. The display device 2 according to the second embodiment is suitable when the user wants to finely adjust the focus position in a state where the use focus position is in the vicinity of the target focus position. The predetermined range is set by the user via the operation unit 22, for example.

  FIG. 9 is a diagram illustrating an example of a screen displayed by the display device 2 according to the second embodiment. FIG. 9A shows a screen in a state where the use focus position is not within a predetermined range from the target focus position (target focus position ± 0.5 m in FIG. 9A). A region surrounded by a broken line in FIG. 9A is a preset region to be enlarged in the image (hereinafter referred to as “enlarged region”).

  FIG. 9B shows a screen in a state where the use focus position is within a predetermined range from the target focus position. As described above, the image display unit 255 according to the second embodiment enlarges the display image to be displayed on the display unit 23 when the use focus position is included in the predetermined range with respect to the target focus position. As shown in FIG. 9B, the image display unit 255 displays an image obtained by reducing the entire display image together with the enlarged image.

  The storage control unit 254 may cause the storage unit 24 to store information for specifying the enlarged region in association with the target focus position based on the user operation content on the operation unit 22. Further, the storage control unit 254 may store information for specifying an enlarged region in the image in the storage unit 24 in association with the elapsed time from the reference time.

  FIG. 10 is a diagram illustrating a target focus position table stored in the storage unit 24. In the target focus position table shown in FIG. 10, the order of the target focus position, the elapsed time from the reference time, the target focus position, and the coordinates of the four corners of the area to be enlarged are associated. For the second target focus position, the coordinates of the four corners of the enlarged display area are not set. In such a case, the image display unit 255 does not enlarge the image displayed on the display unit 23 even if the use focus position falls within a predetermined range from the second target focus position.

  FIG. 11 is a flowchart illustrating a processing procedure according to the second embodiment. FIG. 11 shows the processing from S14 in the flowchart of FIG. S21 to S23 and S27 to S29 in FIG. 11 correspond to S14 to S16 and S18 to S20 in FIG.

  When acquiring the use focus data in S23, the image display unit 255 determines whether or not the use focus position indicated by the use focus data is within a predetermined range with respect to the target focus position (S24). When the use focus position is within a predetermined range with respect to the target focus position (Yes in S24), the image display unit 255 enlarges the image data input from the image data acquisition unit 252 and displays it on the display unit 23. (S25). Specifically, the image display unit 255 displays an enlarged image of the enlarged region stored in the storage unit 24 in association with the target focus position. When the use focus position is not within the predetermined range with respect to the target focus position (No in S24), the image display unit 255 does not enlarge the image data input from the image data acquisition unit 252 and has a normal size. It displays on the display part 23 (S26).

  In S25, the image display unit 255 may enlarge and display a display image in an area corresponding to the elapsed time when the use focus position is included in a predetermined range with respect to the target focus position. . For example, the storage unit 24 stores the coordinates of a plurality of enlarged regions corresponding to a plurality of elapsed times in association with each target focus position, and the image display unit 255 has a predetermined focus position relative to the target focus position. While being included in the range, the area for enlarging the image is changed according to the elapsed time. In this way, when the position of the subject changes while the target focus position does not change, the image display unit 255 can enlarge an image around the subject and display it on the display unit 23. The user can easily fine-tune the focus position while viewing the magnified subject.

[Effects of Second Embodiment]
As described above, in the imaging system S according to the second embodiment, the image displayed by the image display unit 255 on the display unit 23 when the use focus position falls within a predetermined range from the target focus position. Expanding. In this way, when the use focus position approaches the target focus position, the user can finely adjust the use focus position while viewing the enlarged display subject without performing an operation for enlarging the display. it can. Therefore, the user can improve the adjustment accuracy of the focus position without performing a complicated operation.

<Third Embodiment>
In the first embodiment and the second embodiment, the display device 2 displays the target focus position and the use focus position. On the other hand, the third embodiment is different from the first embodiment and the second embodiment in that the imaging apparatus 1 displays the target focus position and the used focus position on the display unit 15.

  FIG. 12 is a diagram illustrating a configuration of the imaging apparatus 1 according to the third embodiment. The imaging device 1 illustrated in FIG. 12 is different from the imaging device 1 illustrated in FIG. 3 in that it includes a storage control unit 175. Further, the image signal generation unit 174 not only displays the image based on the image data on the display unit 15 but also superimposes the image based on the image data to indicate the target position image 202 indicating the target focus position and the use focus position. 3 is different from the imaging device 1 shown in FIG. 3 in that the focus adjustment image 201 including the use position image 203 is displayed on the display unit 15.

  The storage control unit 175 has a function equivalent to that of the storage control unit 254 according to the first embodiment and the second embodiment. For example, the storage control unit 175 causes the storage unit 16 to store target focus data input by the user via the remote control IF unit 13. The storage unit 16 stores a target focus position table as shown in FIG. 5 or FIG. Similar to the image display unit 255 according to the first and second embodiments, the image signal generation unit 174 sequentially reads out the target focus position stored in the storage unit 16 and inputs it from the focus control unit 172. The target position image 202 is displayed on the display unit 15 together with the used position image 203 based on the used focus data.

[Effect in the third embodiment]
As described above, the imaging apparatus 1 according to the third embodiment can display the target focus position input by the user together with the focus position used during shooting. Therefore, without connecting the display device 2 to the imaging device 1, the user sets the focus position of the imaging device 1 to the target focus position set based on the distance to the subject measured in advance during the rehearsal. It can be easily adjusted.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment, A various deformation | transformation and change are possible within the range of the summary. is there.

23 ... Display unit 24 ... Storage unit 252 ... Image data acquisition unit 253 ... Focus data acquisition unit 254 ... Storage control unit 255 ... Image display unit

Claims (13)

Storage control means for storing in the storage means a target focus position, which is a target of the focus position used at the time of shooting in the imaging apparatus, input by the user;
Use focus data acquisition means for acquiring use focus data indicating a use focus position used for shooting in the imaging device;
Image data acquisition means for acquiring image data generated by the imaging device shooting an object using the focus position used;
Image display means for displaying on the display means the target focus position and the used focus position superimposed on a display image based on image data;
A display device comprising: The storage control unit causes the storage unit to store a plurality of the target focus positions in association with the order used in capturing an image in the imaging device,
The image display means causes the display means to display the plurality of target focus positions in association with the order,
The display device according to claim 1. The storage control unit causes the storage unit to store a plurality of the target focus positions in association with an elapsed time from a reference time,
If the elapsed time since the display of the target focus position on the display means coincides with the elapsed time stored in the storage means, the image display means Displaying the associated target focus position on the display means;
The display device according to claim 1. The image display means enlarges and displays the display image on the display means when the use focus position is included in a predetermined range with respect to the target focus position.
The display device according to claim 1. The storage control unit causes the storage unit to store an area to be enlarged and displayed in the image in association with the target focus position.
The image display means enlarges and displays the display image of the area associated with the target focus position.
The display device according to claim 4. The storage control unit stores an area to be enlarged and displayed in the image in the storage unit in association with the elapsed time from the reference time,
The image display means enlarges and displays the display image of the area corresponding to the elapsed time when the use focus position is in a state within a predetermined range with respect to the target focus position. And
The display device according to claim 4 or 5. Obtaining a target focus position, which is a target of a focus position to be used at the time of shooting in the imaging apparatus, input by a user;
Storing the acquired target focus position in a storage means;
Obtaining use focus data indicating a use focus position used for photographing in the imaging device;
Acquiring image data generated by the imaging device photographing a subject using the use focus position;
Displaying the target focus position and the used focus position on a display unit in a superimposed manner on a display image based on image data;
A display control method comprising: In the storing step, a plurality of the target focus positions are stored in the storage unit in association with an order used in capturing an image in the imaging device,
In the displaying step, the plurality of target focus positions are associated with the order and displayed on the display means.
The display control method according to claim 7. In the storing step, the elapsed time from a reference time and the target focus position are associated with each other and stored in the storage unit,
In the displaying step, the target focus position stored in the storage unit is displayed on the display unit at a timing based on an elapsed time since the start of acquisition of an image signal.
The display control method according to claim 7 or 8. In the displaying step, when the use focus position is included in a predetermined range with respect to the target focus position, the display image is enlarged and displayed on the display means.
The display control method according to claim 7. In the storing step, an area to be enlarged and displayed in the image is associated with the target focus position and is stored in the storage unit.
In the displaying step, the image of the region associated with the target focus position in the display means is enlarged and displayed.
The display control method according to claim 10. In the storing step, an area to be enlarged and displayed in the image is stored in the storage unit in association with the elapsed time from the reference time,
In the displaying step, the display image of the region corresponding to the elapsed time at a time point when the use focus position is included in a predetermined range with respect to the target focus position is enlarged and displayed. And
The display control method according to claim 10 or 11. An imaging device for photographing a subject,
Storage control means for storing in a storage means a target focus position, which is a target of a focus position to be used when taking an image, input by a user;
Used focus data acquisition means for acquiring used focus data indicating the used focus position used for shooting;
Image data generating means for generating image data by photographing the subject using the focus position used by the imaging device;
Image display means for displaying on the display means the target focus position and the used focus position superimposed on a display image based on image data;
An imaging device comprising:

Images