JP6112985B2 - Display control apparatus, method, program, and storage medium - Google Patents

Description

  The present invention relates to a display control device, a method, a program, and a storage medium that can set parameters by a touch operation.

  2. Description of the Related Art In recent years, with the development of communication technology, technology for remotely controlling external devices such as an imaging device from a personal computer, a smartphone (mobile phone terminal), or the like has spread. In addition, touch panels have become widespread, and various parameters are set by operations on the touch panel.

  Patent Document 1 describes a remote live view technique in which a computer is connected to a digital camera and an image (live view image) at the time of composition confirmation of the digital camera is displayed on a monitor screen of the computer. In addition, it is described that a plurality of operation buttons for instructing the camera with different focus pulse amounts (movement amounts of the focus lens) are provided on the computer monitor screen so that the user can perform manual focus.

  Japanese Patent Application Laid-Open No. 2004-228561 describes a technique of finely adjusting the focus of a photographic optical image by automatic focus adjustment after manually moving a focus lens by a touch operation in an imaging apparatus having a touch panel.

JP 2012-99888 A JP 2011-151728 A

  In the parameter setting, quick and accurate parameter setting is required even when the touch operation is performed. For example, when performing manual focus as focus adjustment, it is required to set the focus position as a parameter quickly and accurately.

  On the other hand, in the method of moving the focus position by a predetermined amount according to one operation on the displayed operation button as in Patent Document 1, if the amount of movement of the focus lens for one operation is too small, quick focus Adjustment becomes difficult. However, if the amount of movement of the focus lens for one operation is large, accurate focus adjustment becomes difficult. Even if a plurality of operation buttons with different lens movement amounts are displayed, such as a button with a small movement amount and a button with a large movement amount, it takes time to select the operation button. Also, operation buttons corresponding to the desired lens movement amount are not always prepared.

  This problem is the same as that in the technique described in Patent Document 2 at the stage of manually adjusting the focusing lens.

  An object of the present invention is to provide a display control device, a method, a program, and a storage medium that can set parameters quickly and accurately by a touch operation.

  A display control device according to the present invention includes a touch detection unit that performs a touch operation on a display unit, a first touch icon for issuing a first command that changes a specific parameter by a first amount, and Display control means for controlling the display unit to display a second touch icon for issuing a second command for changing a specific parameter by a second amount larger than the first amount; When a touch on one touch icon is detected, while the touch continues, the first touch icon and the touch position of the touch have a frequency corresponding to a distance in a first direction. When it is controlled to repeatedly issue a command and it is detected that the second touch icon is touched, the second touch icon and the touch position of the touch are maintained while the touch continues. At a frequency corresponding to the distance of the first direction, and having a control means for repeatedly issues the second command.

  According to the present invention, parameters can be set quickly and accurately by a touch operation.

It is a system configuration figure of one example of the present invention. It is a schematic block diagram of the imaging device of this system. It is a schematic block diagram of the information terminal of this system. It is an example of the remote live view operation / display panel displayed on the information terminal. It is an example of a manual focus setting panel. It is an operation | movement flowchart of a present Example.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows a schematic configuration diagram of an embodiment of the present invention. In this embodiment, a smart phone, a notebook personal computer, or other information terminal 80 is connected to the interchangeable lens type imaging device 10, and the imaging device 10 is controlled by the information terminal 80.

  The imaging device 10 has a replaceable photographic lens 14 attached to a main body 12. The photographing lens 14 includes a zoom lens 16 that changes the focal length, a diaphragm mechanism 18 that controls brightness, and a focus lens 20 that focuses on the subject. The photographic lens 14 also includes a mount 22b that mechanically fits with the mount 22a on the main body 12 side. When mounted on the main body 12, the electrical contact 24a on the mount 22a is electrically connected to the electrical contact 24b on the mount 22b. Connect to.

  The subject light transmitted through the photographic lens 14 is reflected by the movable mirror 26 of the main body 12 and forms an image on the focus plate 28. The user can visually confirm the optical image on the focusing screen 28 as an erect image through the eyepiece 30 and the pentaprism 32. This is a so-called optical finder structure. The movable mirror 26 jumps up at the time of shooting, and the shutter 34 opens for a predetermined time. As a result, the optical image from the photographic lens 14 enters the image sensor 36 via the shutter 34. The image sensor 36 converts the optical image into an electrical image signal.

  The contact group 24b of the mount 22b of the photographic lens 14 is electrically connected to the contact group 24a of the main body 12 when mounted, and the main body 12 supplies power to the photographic lens 14 via the connected contact groups 24a and 24b. The photographing lens 14 is controlled. The contact groups 24a and 24b are composed of a plurality of contacts according to applications, such as a power source, a ground, transmission, reception, and a clock.

  A display (display unit) 48 that can be used as a finder for determining the subject composition and can be used to display a reproduced image and various menus is disposed on the back of the main body 12. As will be described later, the display screen of the display 48 is equipped with a touch panel capable of touch input with a finger or a pen.

  FIG. 2 is a block diagram showing a schematic configuration of means provided in the main body 12 of the imaging apparatus 10. With reference to FIG. 2, the basic functions of the individual elements will be described.

  The imaging device 36 is composed of a CCD image sensor, a CMOS image sensor, or the like, and outputs an image signal corresponding to the optical image on the imaging surface. The CDS / AGC circuit 38 performs correlated double sampling (CDS) and amplification on the image signal from the image sensor 36. The A / D converter 40 converts the analog image signal output from the CDS / AGC circuit 38 into a digital signal. A timing generator (TG) 42 generates a timing signal for driving the image sensor 36 and a sampling signal for the CDS / AGC circuit 38.

  A WB (white balance) circuit 44 a of the image processing IC 44 adjusts the white balance of the image data from the A / D converter 40 and stores the adjusted image data in the memory 46.

  The video IC 50 displays a corresponding image on the display 48 according to the image data stored in the VRAM 52. In the live view mode, the display 48 can be used as a viewfinder.

  During live view display, the mirror 26 is in the flip-up position, and the shutter 34 opens and closes at a constant cycle. An image signal of the number of pixels necessary for live view is read from the image sensor 36, and image data is stored in the memory 46 as described above. The live view image data stored in the memory 46 is transferred to the VRAM 52 via the CPU bus 54. The video IC 50 reads the image data stored in the VRAM 52 and drives the display 48. As a result, an image corresponding to the image data stored in the VRAM 52 is displayed on the screen of the display 48. During live view display, an image signal having the number of pixels necessary for display on the display 48 is read from the image sensor 36.

  The thumbnail creation unit 44b, the image processing unit 44c, the JPEG compression unit 44d, and the lossless compression unit 44e of the image processing IC 44 function when recording a captured image on a recording medium (here, the external memory 64). Specifically, the thumbnail creation unit 44 b generates thumbnail image data from the image data in the memory 46 and outputs the thumbnail image data to the CPU bus 54. The image processing unit 44c converts the image data in the memory 46 from the RGB format to the YcbCr format for JPEG compression. The JPEG compression unit 44d compresses the image data in the YcbCr format from the image processing unit 44c by JPEG, and outputs the JPEG data to the CPU bus 54. The lossless compression unit 44 e performs lossless compression on the image data in the memory 46 and outputs RAW data to the CPU bus 54.

  The CPU 56 initializes the imaging device 10 and starts communication with the photographing lens 14 in accordance with a control program stored in the nonvolatile memory 58 immediately after the power is turned on.

  The CPU 56 also operates each unit including the image sensor 36 and the image processing IC 44 for recording a captured image in response to a release operation of the release switch 60. At this time, the thumbnail data, JPEG data, and RAW data output from the thumbnail creation unit 44 b, JPEG compression unit 44 d and reversible compression unit 44 e to the CPU bus 54 are temporarily stored in the memory 46. The CPU 56 reads out the data written in the memory 46 in this way to the CPU bus 54 and writes it in the fixed format in the external memory 64 through the interface 62.

  The communication unit 66 can be connected to the Internet via a wireless LAN (Local Area Network) or a wired LAN by a wireless or wired cable. In particular, the communication unit 66 can transmit various data and control signals including live view image data and image data recorded in the external memory 64 to an external device (in this case, the information terminal 80), and the image data and control signal can be transmitted from the external device. Can be received.

  FIG. 3 shows a schematic block diagram of the information terminal 80 that functions as a display control device of the imaging device 10. The information terminal 80 includes a portable information terminal such as a smartphone.

  A control unit (CPU) 302, a memory 304, a nonvolatile memory 306, an image processing unit 308, a display (display unit) 310, an operation unit 312, a recording medium I / F 314, an external I / F 318, and a communication I / F 320 are connected to the internal bus 324. Connect. These elements connected to the internal bus 324 can exchange data with each other via the internal bus 324.

  The memory 304 is composed of, for example, a RAM (a volatile memory using a semiconductor element). The control unit 302 controls each unit of the information terminal 80 using the memory 304 as a work memory according to a program stored in the nonvolatile memory 306, for example. The nonvolatile memory 306 stores image data, audio data, other data, various programs for operating the control unit 302, and the like. The nonvolatile memory 306 is configured by, for example, a hard disk (HD) or a flash memory.

  The image processing unit 308 performs A / D conversion processing, D / A conversion processing, compression / expansion processing, enlargement / reduction (resizing) processing, noise reduction processing, and color processing on image signals / image data based on the control of the control unit 302. Conversion processing and the like can be performed. The image signal / image data to be processed includes the image data stored in the nonvolatile memory 306 and the recording medium 316, the video signal acquired through the external I / F 318, and the image data acquired through the communication I / F 320. Etc. The image processing unit 308 may be configured with a dedicated circuit block for performing specific image processing. The function of the image processing unit 308 can be realized by the control unit 302 according to a program.

  The display 310 can display a general image based on the control of the control unit 302 and can display a GUI screen constituting a GUI (Graphical User Interface). The control unit 302 controls each unit of the information terminal 80 so as to generate a display control signal according to the program, generate a video signal to be displayed on the display 310, and output it to the display 310. The display 310 displays an image corresponding to the generated video signal. The information terminal 80 itself may include a display 310 as an external monitor and an interface for supplying a video signal to the monitor.

  The operation unit 312 is an input device that accepts user operations including a character information input device such as a keyboard, a pointing device such as a mouse or a touch panel, buttons, a dial, a joystick, a touch sensor, and a touch pad. The touch panel is an input device that outputs coordinate information corresponding to the touched position, and is configured to be planar with the display 310 overlaid.

  The recording medium I / F 314 can be loaded with a recording medium 316 such as a memory card, CD, or DVD, and is a means for reading / writing data from / to the loaded recording medium 316 based on the control of the control unit 302. The external I / F 318 is an interface that is connected to an external device via a wired cable or a wireless medium and inputs / outputs various signals to / from the external device. The communication I / F 320 can communicate with the network 322 and is an interface for transmitting and receiving various data such as files and commands. In this embodiment, the communication I / F 320 communicates with the communication unit 66 of the imaging device 10 via the network 322.

  The control unit 302 can detect the following operations or states on the touch panel included in the operation unit 312 as touch detection means. In the present specification, touching the touch panel with a finger or a pen is referred to as touch-down. The state in which the touch panel is touched with a finger or a pen is referred to as touch-on. Moving the touch panel while touching it with a finger or a pen is referred to as touch-move. The release of a finger or pen that has been touching the touch panel is referred to as touch-up. A state in which nothing touches the touch panel is referred to as touch-off.

  These operations / states on the touch panel and the position coordinates where the finger or pen touches the touch panel are notified to the control unit 302 via the internal bus 324. The control unit 302 determines what operation has been performed on the touch panel based on the notified information.

  For the touch move, the control unit 302 can also determine the moving direction of the finger or pen moving on the touch panel for each vertical component / horizontal component on the touch panel based on the change of the position coordinates. It is assumed that a stroke is drawn when touch-up is performed on the touch panel through a certain touch move from touch-down. The operation of drawing a stroke quickly is called a flick. A flick is an operation of quickly moving a certain distance while touching a finger on the touch panel and then releasing it, in other words, an operation of quickly tracing a finger on the touch panel. When it is detected that a touch move has been performed at a predetermined speed or more over a predetermined distance and a touch-up is detected as it is, the control unit 302 determines that a flick has been performed. Further, when it is detected that a touch move is performed at a predetermined distance or more and less than a predetermined speed, the control unit 302 determines that a drag has been performed. There are various types of touch panels, such as a resistive film type, a capacitance type, a surface acoustic wave type, an infrared type, an electromagnetic induction type, an image recognition type, and an optical sensor type. It may be.

  A display control operation of the imaging apparatus 10 by the information terminal 80 will be described. FIG. 4 is a display example of the remote live view operation / display panel 410 displayed on the display 310 of the information terminal 80. The imaging device 10 in the live view mode transmits a live view image from the communication unit 66 to the information terminal 80, and the information terminal 80 displays the live view image in the live view display area 412 of the remote live view operation / display panel 410. .

  On the remote live view operation / display panel 410, an MF start icon 416 for starting the manual focus setting panel 414 and a shutter icon 418 for inputting a shutter release instruction are arranged.

  When a touch-down on the shutter icon 418 and a subsequent touch-up are detected, the control unit 302 transmits a release command to the imaging device 10. The imaging apparatus 10 performs main shooting (shooting for recording a still image file in the external memory 64) according to the release command.

  When detecting a touch operation on the MF activation icon 416 by the photographer, the control unit 302 displays the manual focus setting panel 414 or enables selection of the displayed manual focus setting panel 414. The photographer can manually operate the focus of the imaging apparatus 10 using the manual focus setting panel 414.

  FIG. 5 is an explanatory diagram of the manual focus setting panel 414 and its operation. FIG. 5A is a plan view showing the configuration of the manual focus setting panel 414. In the center of the manual focus setting panel 414, an indicator 502 for displaying the presence / absence of command transmission to the imaging apparatus 10 is arranged. On the right side of the indicator 502, focus adjustment buttons 506a, 508a, and 510a for instructing movement in an infinite direction (telephoto side or telephoto side), each assigned with a different driving amount for one tap, are arranged. Also, on the left side of the indicator 502, focus adjustment buttons 506b, 508b, and 510b for instructing movement in the close-up direction (wide-angle side or wide-side), each assigned a different driving amount for one tap, are arranged. Yes. Here, “tapping” refers to an operation of touching down the touch panel and releasing it from the touch panel without a touch move.

  The focus adjustment buttons 506a, 508a, and 510a; 506b, 508b, and 510b are touch icons that indicate touch areas in which the control unit 302 detects a touch on them. The assigned movement amount of the focus adjustment buttons 506a to 510a and 506b to 510b is set to a larger value as the distance from the indicator 502 increases. For example, the focus adjustment buttons 506a and 506b are assigned a driving amount for moving the focus lens 20 by one step with respect to one tap. A drive amount equivalent to 5 steps is assigned to the focus adjustment buttons 508a and 508b, and a drive amount equivalent to 15 steps is assigned to the focus adjustment buttons 510a and 510b. Preferably, a larger driving amount is assigned to the focus adjustment buttons 508a and 508b than when the focus adjustment buttons 506a and 506b are tapped twice. Similarly, more drive amounts are assigned to the focus adjustment buttons 510a and 510b than when the focus adjustment buttons 508a and 508b are tapped twice.

  Marks indicating the driving direction and the driving amount are displayed on the focus adjustment buttons 506a to 510a and 506b to 510b, respectively. The control unit 302 determines whether or not the imaging apparatus 10 can receive a lens drive command each time a touch operation on the focus adjustment buttons 506a to 510a and 506b to 510b is detected. When the imaging device 10 can receive a lens driving command, the control unit 302 transmits a lens driving command or command of a lens driving amount corresponding to the touched focus adjustment button to the imaging device 10. When the control unit 302 transmits a lens driving command to the imaging apparatus 10, the control unit 302 blinks the indicator 502 once.

  When detecting a state where the focus adjustment buttons 506a to 510a and 506b to 510b are continuously pressed for a predetermined time or longer, the control unit 302 shifts to the continuous lens driving mode. While the photographer continues to press and hold one of the slide focus adjustment buttons, the control unit 302 continues the continuous lens driving mode, and when the photographer releases the finger from the focus adjustment button, continuous lens driving is performed. Exit mode.

  In the continuous lens drive mode, the control unit 302 displays the vertical slide movement direction and range on the back of the touched focus adjustment button, as indicated by reference numeral 512 in FIG. The photographer can move the focus adjustment button (the button 508a in FIG. 5B) in the moving direction and range indicated by reference numeral 512. FIG. 5B shows an example when sliding upward. A diamond-shaped tempo indicator 514 displayed over the indicator 502 moves up and down in conjunction with the slide operation. The position of the tempo indicator 514 corresponds to the repetition time interval of the lens drive command determined according to the vertical slide position of the touched focus adjustment button.

  The control unit 302 repeatedly transmits a lens drive command corresponding to the lens drive amount assigned to the focus adjustment button to the imaging device 10 at a command interval based on the vertical slide amount of the focus adjustment button. Here, the command interval is shortened as the focus adjustment button is slid upward, and the command interval is increased as the focus adjustment button is slid downward. Instead of long-pressing the focus adjustment button (continuing the touch for a predetermined time or longer), the operation mode may be shifted to the continuous lens driving mode according to another operation procedure such as tapping twice.

  FIG. 6 shows a flowchart of manual focus control in this embodiment. This process is realized by developing a program recorded in the nonvolatile memory 306 in the memory 304 and executing it by the control unit 302.

  The information terminal 80 communicates with the imaging device 10 via the communication I / F 320. The information terminal 80 can obtain information such as the shooting settings inside the imaging device 10 and the current state through communication with the imaging device 10. The control unit 302 receives a live view image and various types of information indicating the state and settings of the imaging device 10 from the imaging device 10 and appropriately displays them on the display 310. When a tap operation on the MF activation icon 416 is detected while the operation / display panel 410 is displayed on the display 310, the control unit 302 starts the process illustrated in FIG.

  In S101, the control unit 302 starts the manual focus mode and displays the manual focus setting panel 414 in an active manner.

  In S102, the control unit 302 determines whether or not there is a touchdown in any of the display areas of the focus adjustment buttons 506a to 510a and 506b to 510b. If any of the focus adjustment buttons 506a to 510a and 506b to 510b is touched, the control unit 302 proceeds to S103, otherwise proceeds to S115.

  In step S <b> 103, the control unit 302 determines which of the touched focus adjustment buttons is, and determines a lens driving amount and a driving direction (closest direction or infinite direction) to be commanded to the imaging apparatus 10.

  In step S <b> 104, the control unit 302 confirms whether or not the imaging apparatus 10 is ready to execute this lens driving command. This can be confirmed, for example, by whether or not the information terminal 80 has received a reply from the imaging apparatus 10 as a result of executing the previous lens driving command. When the feedback has not been received yet, it is determined that the imaging apparatus 10 is in a state where it cannot execute the lens driving command. Further, even when the information terminal 80 has not yet issued a lens driving command corresponding to a past operation to the imaging device 10, it is determined that the imaging device 10 is not in a state in which the lens driving command can be executed. .

  Further, even when the control unit 302 receives information indicating that the imaging apparatus 10 is in the following state, the control unit 302 determines that the imaging apparatus 10 is in a state where it cannot execute the lens driving command. First, the imaging device 10 is driving the lens in response to an operation of an operation member provided in the imaging device 10. Secondly, the imaging apparatus 10 is in the main shooting according to the operation of the release switch 60 or is in the main shooting according to the touch operation to the shutter icon 418. Third, the focus lens of the photographic lens 14 that is mounted is not mechanically or electrically manually adjustable.

  When the control unit 302 determines that the imaging device 10 is capable of executing a lens driving command and the information terminal 80 is ready to issue a lens driving command to the imaging device 10, the control unit 302 proceeds to S105. Proceed to

  In step S105, the control unit 302 transmits the lens driving command determined in step S103 to the imaging device 10. In step S <b> 106, the control unit 302 turns on the indicator 502 in red and then turns it off to another color in order to indicate to the photographer that the lens driving command has been transmitted to the imaging apparatus 10. That is, the indicator 502 is blinked once.

  In step S107, the control unit 302 determines whether or not the photographer has continued touch-on in the display area of the focus adjustment button for a predetermined time or longer (for example, 1 second or longer), that is, whether or not the photographer has long pressed (long touch). . If the control unit 302 determines that the touch-on has occurred for a predetermined time or more, the process proceeds to S108, and if not, the process proceeds to S115.

  In step S108, the control unit 302 determines whether there has been a touch move in the Y-axis direction (vertical direction) after a long press on the focus adjustment button, that is, whether there has been an operation to move the touch position and slide the focus adjustment button. Determine whether. If there is a slide operation, the control unit 302 proceeds to S109, otherwise proceeds to S112.

  In S109, the control unit 302 acquires the slide movement amount (Y-axis component of the touch move), and determines the repetition time interval of the lens drive command to the imaging device 10 according to the acquired movement amount. It is assumed that the time interval is shortened as the slide movement amount increases upward. In other words, the more the lens slides upward, the more frequently the lens drive command is issued (transmitted), and the greater the lens drive amount per unit time.

  In S110, the control unit 302 moves the display position of the tempo indicator 514 in accordance with the time interval determined in S109. Here, as the time interval is shorter, the control unit 302 displays the tempo indicator 514 at the upper position.

  In S111, the control unit 302 sets a timer time for measuring one interval based on the time interval determined in S109.

  In step S112, the control unit 302 starts a timer that measures the time set in step S111, that is, the time until one lens drive command is issued (transmitted).

  In step S113, the control unit 302 determines whether there is a touch-up. If there is a touch-up, the control unit 302 stops the timer and proceeds to S115. This ends the continuous lens drive mode. If there is no touch-up, the control unit 302 proceeds to S114.

  In step S114, the control unit 302 determines whether the timer started in step S112 has reached a set time. If the set time has been reached, the control unit 302 proceeds to S104, and otherwise returns to S114.

  In step S115, the control unit 302 determines whether there has been an operation to end the manual focus mode. When there is an end operation, the control unit 302 exits the manual focus mode and ends the manual focus operation. If there is no end operation, the control unit 302 returns to S102.

  In this embodiment, when manually operating the focus lens 20 of the imaging device 10 using the information terminal 80 connected to the imaging device 10, the lens driving amount and the repetition interval of the lens driving command can be set with a simple operation. As a result, it is possible to achieve quick focusing without missing a photo opportunity even with manual focus.

  Since the frequency of issuing lens drive commands can be changed by user operation and simple operation, even if the lens drive amount is small once, fine adjustment can be made quickly and finely by increasing the frequency. . Since the indicator 502 that blinks whenever the lens driving command is issued is provided, the photographer can visually confirm the frequency of issuing the lens driving command by the blinking frequency of the indicator 502. Therefore, in this embodiment, the focus lens can be driven at a drive amount / drive interval desired by the user, and a lens drive command at the drive amount / drive interval is correctly transmitted to the imaging apparatus 10 and confirmed. it can. Thus, in this embodiment, it is possible to quickly and accurately set parameters for manual focus by a touch operation.

  Although an embodiment has been described in which an external device issues a drive command for a focus lens of an imaging apparatus, the present invention is not limited to this application. For example, the present invention can be applied to a purpose of controlling a specific parameter such as some operation parameter or setting parameter for any device regardless of the imaging device. Further, although it is particularly suitable for use in setting parameters for a device for which it is difficult to determine whether or not an issued command is applied, the present invention is not limited to this, and it may be used for setting in the same apparatus. For example, the control in the flow illustrated in FIG. 6 may be executed in the imaging apparatus 10 according to a touch operation on the rear display 43 of the imaging apparatus 10.

  The control of the control unit 302 may be performed by a single piece of hardware, or the entire apparatus may be controlled by a plurality of pieces of hardware sharing the processing.

  Although the present invention has been described in detail based on the preferred embodiments thereof, the present invention is not limited to these specific embodiments, and various forms within the scope of the present invention are also included in the present invention. included. Furthermore, the above-described embodiments are merely examples of the present invention, and the embodiments can be appropriately combined.

  Moreover, although the Example which applied this invention to the smart phone (mobile phone terminal) was described, this is not limited to this example. For example, any device that can transmit a command for controlling an external device (corresponding to the imaging device 10 of the above-described embodiment) to the external device wirelessly or by wire and can detect a touch operation is applicable. That is, the present invention can be applied to a personal computer, a PDA, a mobile phone terminal, a portable image viewer, a printer device including a display, a digital photo frame, a music player, a game machine, an electronic book reader, a digital camera, and the like.

  (Other Embodiments) The present invention can also be realized by executing the following processing. That is, software (program) that realizes the functions of the above-described embodiments is supplied to a system or apparatus via a network or various storage media, and a computer (or CPU, MPU, etc.) of the system or apparatus reads the program code. It is a process to be executed. In this case, the program and the storage medium storing the program constitute the present invention.

Claims (10)

Touch detection means for performing a touch operation on the display unit;
A first touch icon for issuing a first command for changing a specific parameter by a first amount, and a second command for changing the specific parameter by a second amount larger than the first amount Display control means for controlling the display unit to display a second touch icon for issuing
When a touch on the first touch icon is detected, the first touch icon is detected at a frequency according to a distance in a first direction between the first touch icon and the touch position of the touch while the touch continues. 1 is repeatedly issued, and when it is detected that the second touch icon is touched, the second touch icon and the touch position of the touch are detected while the touch continues. And a control unit that controls to repeatedly issue the second command at a frequency according to the distance in the first direction.   The control unit does not issue the command when there is no reply from the external device that should send the command that the previous command has been received at the timing to issue the command. The display control apparatus according to 1.   The display control apparatus according to claim 1, wherein the display control unit causes the indicator to blink on the display unit every time the control unit issues a command.   The display control means moves the display position of the tempo indicator displayed on the display unit in the first direction according to the distance in the first direction between the touched touch icon and the touch position. The display control apparatus according to claim 2, wherein: It further has connection means for connecting to the imaging device,
The display control unit receives a live view image captured by the imaging device via the connection unit and displays the live view image together with the first and second touch icons.
The display control apparatus according to claim 1, wherein the specific parameter is a driving amount of a focus lens of the imaging apparatus. Touch detection means for performing a touch operation on the display unit;
Display control means for displaying on the display unit a touch icon for instructing issue of a command;
A means for issuing the command corresponding to the touch icon that has been touched, and when the command is issued once in response to a tap operation and the touch continues, the amount of movement of the touch with respect to the touch icon And a means for repeatedly issuing the command at a frequency in accordance with the display control device. A plurality of touch detection means to which commands having different driving amounts are assigned;
The means for issuing the command corresponding to the touch detection means that has touched, when the command is issued once for a tap operation and the touch continues, the touch for the touch detection means And a means for repeatedly issuing the command assigned to the touch detection means of the touch at a frequency according to the amount of movement of the display. A first touch icon for issuing a first command for changing a specific parameter by a first amount, and a second command for changing the specific parameter by a second amount larger than the first amount A display control step for controlling the display unit to display a second touch icon for issuing
A touch detection step of detecting a touch operation on the first or second touch icon;
While the touch on the first or second touch icon is continued, the touch touched at a frequency according to the distance in the first direction between the touch icon touched and the touch position of the touch. And a step of controlling to repeatedly issue the command corresponding to the icon.   The program for functioning a computer as each means of the display control apparatus as described in any one of Claims 1 thru | or 7.   A computer-readable storage medium storing a program for causing a computer to function as each unit of the display control device according to any one of claims 1 to 7.

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