JP2014059616A - Display control device, method, and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve a smooth scroll when a list display in which images are arranged in a plurality of rows and columns is scrolled.SOLUTION: A portable terminal 103 performs index display in which thumb nail images 601 of images in a digital camera 101 are arranged in a tile shape. When a user performs drag operation on a touch panel 410, the thumb nail list display can be scrolled. In this case, while the drag operation is performed, only the thumb nail images on the head of the rows are displayed, and images prepared in a dedicated application 104 in advance indicating reading of images are displayed instead of displaying the thumb nail images other than the head of the rows. By thus processing, in scroll by drag operation, the thumb nail images in the vicinity of a point focused by the user can be acquired from the digital camera 101 and displayed in a discrete and efficient manner.

Description

  The present invention relates to a display control apparatus, a method, a program, and a computer-readable storage medium that display images in a list on a screen arranged in a plurality of rows and a plurality of columns.

In recent years, with the rapid spread of smartphones, the expansion of culture, such as browsing photos on smartphones and tablet terminals, and enjoying them by printing, is accelerating.
When uploading images from smartphones to blogs and cloud services such as image sharing, there are many requests to use rich images taken with digital cameras such as digital single-lens reflex cameras.
A product that enables browsing and sharing of high-quality images taken with digital cameras on smartphones by connecting digital cameras and smartphones wirelessly, etc., and transferring images taken with digital cameras to smartphones doing.
Since there are many images in the digital camera, it is necessary to select images from a large number of images in the operation of selecting a target image and transferring it to a smartphone. Especially in the case of digital single-lens reflex cameras, the number of shots is large because it is used for sports photography etc., and the camera body is also large and heavy, so you can select an image in the camera on the smartphone side rather than selecting an image on the camera side. Importing is preferable as a user interface.
In order to select a desired image from a large number of images, an index display type user interface that displays thumbnail images arranged in tiles is the most common, and is also used for image selection of a standard application of a smartphone.

As a prior example, a method has been proposed in which, for example, a display image is prefetched as shown in Patent Document 1 so that the image is quickly displayed and no stress is given to the user. In Patent Document 1, by prefetching a certain number of pages for each page, it is possible to display an image even in an image display when pages are fed at high speed.
Another example of a method for realizing image scrolling in a digital camera is, for example, Patent Document 2. This prior example is a proposal for providing a display control device capable of displaying more images during scrolling by displaying the upstream in the scroll direction first.

JP 2011-129062 A JP 2011-164129 A

Each of the preceding examples is a proposal for efficiently displaying an image when the image in the digital camera is displayed on the digital camera body.
When a similar display method is applied to a smartphone application and an image in a digital camera, which is a connected external device, is displayed on the smartphone screen, communication between devices occurs to acquire the image, which takes time. Therefore, the display is not always efficient.
For example, even if the prefetch processing as in Patent Document 1 is performed, when scrolling is performed by a flick operation on a user interface such as a standard index display of a smartphone application, at the time when an image requested by the prefetch processing can be acquired, There may be a situation where it is necessary to display the image ahead.
In order to perform prefetching in this way, it is necessary to consider the speed of scrolling in selecting an image to be prefetched. However, there are cases where image data is acquired from a digital camera via wireless communication, and there are too many uncertainties from when a request is made until image data can be acquired due to the influence of communication speed and the like.
For this reason, it is not possible to easily design an optimal prefetch process. If the pre-reading process is no longer appropriate, it is rather delayed until the pre-reading request finishes in the image display after scrolling stops and the scrolling stops, or the request is canceled, etc. It is possible that the image display is rather slow.
On the other hand, even when the method as disclosed in Patent Document 2 is used, since communication between devices occurs and it takes time to acquire an image, the image eventually cannot be displayed during high-speed scrolling. I can easily imagine that. In order to display an image during scrolling, it is indispensable to perform some kind of prefetching processing as described in Patent Document 1.

  The present invention has been made in view of the above points, and an object thereof is to realize a light scroll when scrolling a list display in which images are arranged in a plurality of rows and a plurality of columns.

  The display control device of the present invention is a display control device that displays a list of images arranged in a plurality of rows and a plurality of columns on a screen, and the list display target is displayed while a scroll operation for scrolling the list display is performed. The image processing apparatus includes a control unit that displays a part of the image with higher priority than the other images.

  According to the present invention, while a scroll operation for scrolling a list display in which images are arranged in a plurality of rows and a plurality of columns is being performed, some of the images that are the targets of the list display are compared to other images. Is also preferentially displayed, so light scrolling can be realized.

1 is a diagram illustrating a configuration example of an image transfer system according to an embodiment. It is a figure which shows the hardware constitutions of the digital camera which concerns on embodiment. 1 is an external view of a back side of a digital camera according to an embodiment. It is a figure which shows the hardware constitutions of the portable terminal which concerns on embodiment. It is a figure for demonstrating the connection of the application structure and digital camera which are started in the portable terminal which concerns on embodiment. It is a figure which shows the state which displays a thumbnail list with the portable terminal which concerns on embodiment. It is a figure which shows the state which is performing the drag operation which scrolls the thumbnail list display of the portable terminal which concerns on embodiment. It is a flowchart which shows the process regarding the thumbnail list display by the portable terminal which concerns on embodiment. It is a figure which shows the exchange of the information between the portable terminal which concerns on embodiment, and a digital camera.

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a diagram illustrating a configuration example of an image transfer system according to the present embodiment. Reference numeral 101 denotes a digital single-lens reflex camera (hereinafter referred to as a digital camera). A portable terminal 103 functions as a display control apparatus to which the present invention is applied, as will be described in detail below. Specifically, the mobile terminal includes a mobile phone, a smartphone, a tablet device, a PDA (Personal Digital Assistant), a portable AV player, an electronic book, an electronic dictionary, and the like.
The digital camera 101 and the portable terminal 103 are connected by a known wireless LAN (Local Area Network), and can transmit and receive various signals including image data. The connection method between the digital camera 101 and the mobile terminal 103 may be a direct connection such as ad hoc or an infrastructure via the access point 102. Further, the digital camera 101 may be a simple access point, and may be directly connected to the mobile terminal 103 by infrastructure connection.
In the present embodiment, the image transferred from the digital camera 101 to the portable terminal 103 includes a still image, a moving image, or the like captured by the digital camera 101. In addition to captured still image and moving image files themselves, they include files that have been resized and rate converted and converted for transfer.

<Hardware configuration of digital camera>
FIG. 2 is a diagram illustrating a hardware configuration of the digital camera 101. Reference numerals 1 and 3 denote photographic lenses, which are illustrated here with two lenses for convenience of explanation, but are actually composed of a larger number of lenses. A diaphragm 2 adjusts the amount of light that has passed through the taking lenses 1 and 3. Reference numeral 4 denotes a main mirror, which is set to an inclined state or a retracted state with respect to the photographing optical path according to the observation state of the subject image by the finder system. A sub-mirror 5 reflects the light beam that has passed through the main mirror 4 toward the focus detection lens system 11 and the line sensor 12 located below the camera housing. Reference numeral 6 denotes a shutter. Reference numeral 7 denotes an image sensor, which is configured as a CCD image sensor or a CMOS image sensor.

  Reference numeral 8 denotes a liquid crystal display unit which is built in the finder and displays a focus plate and a distance measurement frame mark, etc., which are arranged on the planned image planes of the photographing lenses 1 and 3. A pentaprism 9 is a finder optical path changing prism. Reference numeral 10 denotes an eyepiece lens, through which the photographer can observe the subject. Reference numeral 11 denotes a focus detection lens system. A line sensor 12 performs focus detection. Reference numeral 28 denotes an A / D conversion circuit, which performs A / D conversion on the photometry circuit arranged at the upper part of the finder optical path system and its output.

  Reference numeral 13 denotes a focus adjustment circuit which is disposed in the photographing lenses 1 and 3 and performs focus adjustment. Reference numeral 14 denotes an aperture driving circuit, which is disposed in the photographing lenses 1 and 3 and drives the aperture 2. A mirror driving circuit 15 drives the main mirror 4. Reference numeral 16 denotes a line sensor drive circuit, which drives the line sensor 12. Reference numeral 17 denotes a shutter drive circuit that drives the shutter 6. Reference numeral 18 denotes an image sensor driving circuit that drives the image sensor 7.

Reference numeral 19 denotes an A / D conversion circuit that converts an analog shooting signal output from the image sensor 7 into a digital shooting signal. Reference numeral 20 denotes a signal processing circuit, which performs signal processing on the digital photographing signal.
A RAM 21 temporarily stores digital image signals and the like. A ROM 22 stores a control program for controlling the digital camera 101 and the like. A memory card 23 such as a compact flash (registered trademark) (CF) or SD is a recording medium for finally recording a digital image signal. Reference numeral 24 denotes a CPU, which is a central processing unit that controls each part of the digital camera 101. A rear liquid crystal display unit (LCD) 25 displays a captured image corresponding to the captured digital image signal, displays a menu for changing a shooting parameter, or displays a live view image.

  Reference numeral 26 denotes a switch input unit, which performs input linked to the operation of various buttons such as a release switch (hereinafter referred to as a release SW) operated by a shutter button 37 shown in FIG. . The switch input unit 26 sends a corresponding signal to the CPU 24 when the photographer operates the corresponding button. The release SW is composed of a switch having at least two or more contacts, and has a structure in which the state is switched in two stages depending on the amount of pressing, for example. When the release SW is pressed halfway, the first contact (SW1) is selected, and when the release SW is pressed to the end, the second contact (SW2) is selected. When SW1 is selected, shooting preparation operations such as AF (autofocus) and AE (automatic exposure) are performed, and when SW2 is selected, shooting operations and digital image signal creation operations and recording operations are performed.

A communication unit 27 has an interface such as a LAN or USB (Universal Serial Bus). By connecting to an external device such as the portable terminal 103 via the communication unit 27, it is possible to transmit an image captured by the digital camera 101, to remotely control the digital camera 101 from the external device, and the like.
Reference numeral 28 denotes a power source serving as a drive source for the digital camera 101, and a rechargeable power source such as a lithium ion battery is generally used.

  FIG. 3 is an external view of the back side of the digital camera 101. A shutter button 37 is disposed on the upper surface of the casing of the digital camera 101. Further, a selection sub-dial 38, a live view start / end button 42, a back liquid crystal display unit 25 for confirming a photographed image and displaying a function menu are disposed on the back surface of the casing. Operation information such as various switches and dials is sent from the switch input unit 26 to the CPU 24, and the CPU 24 controls the digital camera 101 according to the state and the state of the operated button.

<Hardware configuration of mobile terminal>
FIG. 4 is a diagram illustrating a hardware configuration of the mobile terminal 103.
The portable terminal 103 includes a CPU 400, a flash memory 401, and a RAM 402. Further, the camera has a built-in camera 403, a microphone 404, a speaker 405, an earphone 406, a touch panel 410, a liquid crystal display unit 411, a switch 412, a communication unit 413, and an external I / F (interface) 414. In addition, some have a GPS (Global Positioning System) sensor 407, an electronic compass 408, and the like. In addition to these, the mobile terminal 103 may include a call antenna, a call communication module, and the like.

  The CPU 400 controls the processes executed by the mobile terminal 103 in an integrated manner. The RAM 402 is used as a work area of the CPU 400, and temporarily stores various data such as contents processed by the CPU 400 and various application programs. The flash memory 401 stores various contents such as digital photograph images and moving images taken by the built-in camera 403, various control programs executed by the CPU 400, and various application programs.

  The liquid crystal display unit 411 is an LCD such as a TFT (Thin Film Transistor) or an OELD (Organic Electro-Luminescence Display), for example, and displays an application UI (User Interface). The touch panel 410 is provided integrally with the liquid crystal display unit 411. The touch panel 410 detects a user's touch operation in a state where a photograph or a GUI (Graphical User Interface) is displayed by executing the application, and notifies the CPU 400 of the touch operation. As an operation method of the touch panel 410, for example, a resistance film method or a capacitance method is used, but other methods may be used. The touch panel 410 enables a user to select a photo and display it on a full screen or to enlarge or reduce an image by pinching in or pinching out during execution of a photo display application, for example.

The switch 412 receives a user operation that cannot be input on the touch panel 410, such as a power switch and a start button, and transmits an input signal to the CPU 400. Earphone 406 and speaker 405 output audio signals stored in flash memory 401 or the like, or input from communication unit 413 or external I / F 414 or the like.
The communication unit 413 performs communication processing with other devices via a network such as the Internet or a LAN. The communication unit 413 may include a wireless LAN module or a WWAN (Wireless Wide Area Network) module.
The external I / F 414 exchanges applications and content data in accordance with various standards such as USB and HDMI (High-Definition Multimedia Interface).
The power source 415 is a power source serving as a drive source for the mobile terminal 103, and a rechargeable power source such as a lithium ion battery is generally used.

<Connection between digital camera 101 and portable terminal 103>
As shown in FIG. 5, in order to connect the digital camera 101 and the mobile terminal 103, it is necessary to start the dedicated application 104 in the mobile terminal 103. The dedicated application 104 is application software for performing communication with an external device such as the digital camera 101.
When the digital camera 101 is instructed to start a connection with an external device by the user, the digital camera 101 searches for a connected device using a device detection procedure such as UPnP (Universal Plug and Play) for the participating network.
When the dedicated application 104 is activated in the mobile terminal 103 as the connection partner, the device information of the detected digital camera 101 is displayed on the network. When there is an action from the user who selects the displayed digital camera 101, the portable terminal 103 makes a connection response to the digital camera 101.
The digital camera 101 notifies that there is a connection response from the portable terminal 103, displays the device device of the other party to be connected, and confirms with the user.
This procedure is called pairing. Once pairing is established, the digital camera 101 stores connection setting information that can identify the individual, such as setting of an access point, ID and MAC address of the mobile terminal 103 of the connection partner, and registers them as external device connection settings.
The registered device simply selects a connection destination with the digital camera 101, and thereafter, if the dedicated application 104 is activated in the portable terminal 103 of the connection partner, the connection is automatically established without user confirmation.
Thus, a plurality of settings for each mobile terminal 103 device of the connection partner can be registered in the digital camera 101.

<Display of in-camera image on portable terminal 103>
When the digital camera 101 and the portable terminal 103 are connected, as shown in FIG. 6A, the image recorded on the memory card 23 in the digital camera 101 is displayed in the dedicated application 104 activated on the portable terminal 103. A thumbnail list display for displaying the thumbnail image 601 becomes possible. In the thumbnail list display, index display is performed in which thumbnail images 601 of images in the digital camera 101 are arranged in tiles (arranged in multiple rows and multiple columns).
The dedicated application 104 of the portable terminal 103 acquires a list of image files in the digital camera 101, and displays a thumbnail list by sorting by file number, shooting date and time, rating information, or the like.
As shown in FIG. 6B, by tapping an image that the user wants to use from the thumbnail images 601 displayed as a list, the user can select a check 602 and select an image.
When the selection of the image is completed, by tapping the capture execution button 603, the mobile terminal 103 captures the image from the digital camera 101. At this time, not only the image file of the digital camera 101 is transferred to the portable terminal 103 as it is, but also the image size specified by the user is resized on the digital camera 101 side, and the generated resized image file is transferred to the portable terminal 103. You can also

<Scroll thumbnail list display>
When there are many images recorded in the digital camera 101, it is possible to cope with a large number of images by scrolling the thumbnail list display.
As shown in FIG. 7, when the dedicated application 104 of the portable terminal 103 is activated and the image display function in the digital camera 101 is activated, the screen of the portable terminal 103 is displayed as a thumbnail list.
A list view (image display view) 600 of a user interface controller that controls thumbnail list display controls display in a list form. If an item is registered in the list view 600, when the registered item becomes a display target, an information acquisition request is issued as an event from the list view 600 to the application program. In the present embodiment, the item is thumbnail image data.

  As shown in FIG. 7A, when the user operates the touch panel 410 to perform a drag operation or a flick operation on the list view 600, the list view 600 scrolls and displays the registered items. For example, as indicated by an arrow 700, when a drag operation is performed from the bottom to the top, the thumbnail image 601 is scroll-drawn upward in accordance with the drag operation. When the amount of scroll movement reaches the next line, the list view 600 issues an information acquisition request event for the item to be displayed to the application program. In the example of FIG. 7A, an information acquisition request event for an item displayed in the next row of the thumbnail image 601z in the last row is issued.

With reference to FIG. 8, a process for an item information acquisition request issued from the list view 600 will be described. FIG. 8 shows processing related to thumbnail list display by the mobile terminal 103. This process is realized by the CPU 400 executing a program.
In step S <b> 101, the mobile terminal 103 determines whether the user is operating the touch panel 410 when the item information acquisition request issuance is issued from the list view 600, that is, whether the user is touching the touch panel 410. Determine. When determination of step S101 is YES, it transfers to step S102. The state in which the user is operating the touch panel 410 in step S101 means that a drag operation that is a scroll operation is being performed.

In step S102, in response to the requested information acquisition request for one line of items, the portable terminal 103 performs a thumbnail image acquisition request procedure for the digital camera 101 for only the top thumbnail image. Although a detailed description will be given later, a thumbnail image acquisition request to the digital camera 101 is only a request to the camera communication controller 105. As shown in FIG. 5, the camera communication controller 105 controls communication with the digital camera 101 via the communication unit 413 based on the program of the dedicated application 104.
By performing the processing as described above, while the drag operation is being performed, the display of the list view 600 is displayed as a part of thumbnail images, specifically, at the beginning of each row as shown in FIG. Only thumbnail images 601a, 601b, 601c and 601d are preferentially displayed. For thumbnail images other than the head of each row, there may be images that have not yet been acquired from the digital camera 101 by displaying images, icons, frame lines, and the like indicating that the dedicated application 104 is reading in advance. Make it understandable.
By processing in this way, in the scroll by the drag operation, it is possible to efficiently obtain and display the thumbnail images in the vicinity of which the user is paying attention from the digital camera 101 in a discrete and efficient manner.

Returning to FIG. 8, when the user is not operating the touch panel 410 in step S101, the process proceeds to step S103, and it is determined whether or not scrolling is in progress.
In FIG. 8, since the list view 600 describes event processing in which an information acquisition request event of an item to be displayed is generated, it can be said that this event is very rarely issued when scrolling is stopped. Normally, the process proceeds to step S104. If the scrolling speed is very slow, it means that it will stop soon, so it may be determined that it is not in the scrolling state.
If it is determined in step S103 that scrolling is in progress, it is determined in step S104 whether a thumbnail image acquisition request is being issued to the digital camera 101. For the thumbnail image acquisition request, since the camera communication controller 105 manages command issuance management for the digital camera 101, it is confirmed whether there is a process being requested to the camera communication controller 105.

If the thumbnail image acquisition request is not in progress, a thumbnail image acquisition request is sent to the camera communication controller 105 in step S105 with the image of the latest acquisition event among the information acquisition requests for the item of the currently displayed image as the target image. At this time, considering the scrolling speed and the scrolling direction, an item that is not requested to acquire item information from the list view 600 may be used as a target image. By performing processing in this way, it is also possible to achieve prefetching processing. Although this method can be said to be applied to Patent Document 1, since an image is acquired from an external device via communication, it is difficult to guarantee a stable image display.
In this way, by making the image request during scrolling always request only one image from the digital camera 101, the image drawing response when scrolling is stopped, during a drag operation, or during low-speed scrolling is improved.
If a thumbnail image acquisition request is being made, the process is exited.

On the other hand, if it is determined in step S103 that the image is not being scrolled, in step S106, the camera communication controller for all items currently displayed in the list view 600, that is, for all thumbnail images that have not yet been acquired. A thumbnail image acquisition request is sent to 105.
Note that the processing of step S106 is not limited to the item information acquisition request event issued from the list view 600 described in FIG. 8, but also in the scroll end event of the list view 600 and the touch end event of releasing the touch panel of the list view 600. It is desirable to perform the same process. In this case, since requests are executed from a plurality of events, it is necessary to perform processing on the camera communication controller 105 so that the same image is not issued to the digital camera 101 repeatedly.

As described above, during the drag operation to the touch panel 410, some images among the images to be displayed as a list during scrolling are displayed with priority over other images.
On the other hand, during the inertial scroll after the flick operation on the touch panel 410, the image to be displayed as a list is not displayed in the middle of the inertial scroll, and the image near the inertial scroll stop position is not displayed. Make the display.
This switching of processing may be performed depending on whether the scrolling is performed by a drag operation while touching the screen or the high-speed inertial scroll is performed after the flick operation without touching the screen. Further, it may be switched according to the scroll speed.

As described above, since the images in the digital camera 101 are basically arranged in time series of the shooting date and time, as many thumbnail images as possible are displayed when approaching the vicinity of the image the user is looking for. Can do. Further, when it is desired to skip a large amount by scrolling at a high speed, it is possible to greatly reduce the information acquisition request for frequently occurring items, and to reduce overload communication with the digital camera 101.
Although omitted in the above description, for the thumbnail images already acquired from the digital camera 101, the dedicated application 104 generates a memory cache, a temporary file, and the like. As a result, it is desirable not to make an acquisition request to the digital camera 101 again.

With reference to FIG. 9, the event processing from the list view 600 and the relationship between the camera communication controller 105 and the digital camera 101 mentioned in the above description will be described in detail.
The dedicated application 104 of the portable terminal 103 arranges the list view 600 as a screen controller in order to display a thumbnail list of the captured images in the digital camera 101 by a user operation.
As shown in step S901, an item information acquisition request event is issued when an item becomes a display target for an item registered in the list view 600 by a user's touch panel operation.
As described with reference to FIG. 8, in the item information acquisition request event process, the image file for which the digital camera 101 is requested to acquire a thumbnail image is selected from the items requested in step S <b> 902.
In step S902, the camera communication controller 105 is requested for a thumbnail image acquisition request targeted in step S902. In response to the thumbnail image acquisition request, the camera communication controller 105 actually acquires a thumbnail image for the digital camera 101, and does not respond to the thumbnail image acquisition request in step S903, but issues a command issuance FIFO to the digital camera 101. A queue of types is generated, and a request command is queued in this queue, and a response is made to step S903. At this time, if the same request is already in the queue, the queuing process is not performed.
The commands queued in the queue are issued to the digital camera 101 by another thread. The command taken out from the queue is issued to the digital camera 101 in step S905. If the issued command is a thumbnail image acquisition request, a thumbnail image is acquired from the digital camera 101 in step S906.
In step S907, a thumbnail acquisition event is issued to the UI of the dedicated application 104 for the thumbnail image acquired in step S906 to notify that the thumbnail image has been acquired.
The thumbnails acquired in response to the thumbnail acquisition event in step S907 are registered as item information in the list view 600 in step S908, so that thumbnail images are displayed on the list view 600.

As described above, even if there are a large number of images in the digital camera 101, the thumbnail image can be confirmed freely on the mobile terminal 103 side and the target image can be transferred to the mobile terminal 103.
When the thumbnail images of the images in the digital camera 101 are indexed using the portable terminal 103, a light scroll is realized, and a desired image is quickly selected from a large number of images in the digital camera 101. It becomes possible.
In the above description, the list display of thumbnail images has been described as an example. However, the present invention is applicable not only to displaying thumbnail images but also to displaying a plurality of images larger than thumbnail images.

As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary. For example, in the example of FIG. 7, an example is shown in which the first thumbnail image of each row of the thumbnail list display, that is, the image in the first column that is a specific column is preferentially displayed during vertical scrolling. It is not a thing. In the case of horizontal scrolling, an image of a specific row in the thumbnail list display may be preferentially displayed. Also, the images to be displayed in the thumbnail list may be thinned out so that, for example, every few images are preferentially displayed.
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. It is a process to be executed.

101: Digital camera, 103: Portable terminal, 104: Dedicated application, 400: CPU, 401: Flash memory, 402: RAM, 410: Touch panel, 411: Liquid crystal display unit, 413: Communication unit, 414: External I / F ( interface)

Claims (14)

A display control device that arranges images in multiple rows and multiple columns and displays a list on the screen,
It is characterized by comprising control means for displaying a part of the images to be displayed in the list preferentially over other images during the scroll operation for scrolling the list display. Display control device. An obtaining unit for obtaining an image to be displayed as a list;
While the scroll operation is being performed, the control unit preferentially displays the part of the image by the acquisition unit, thereby displaying the image preferentially over the other images. The display control apparatus according to claim 1.   The display control apparatus according to claim 2, wherein the control unit controls the acquisition unit to acquire the other image after scrolling by the scroll operation is stopped.   3. The control unit according to claim 2, wherein the control unit performs control to acquire the other image after the partial image is acquired by the acquisition unit during scrolling according to the scroll operation. 4. The display control device according to 3.   The display control apparatus according to claim 2, wherein the acquisition unit acquires an image that is a target of the list display from an external device by issuing an image acquisition request.   6. The display control according to claim 1, wherein the control unit preferentially displays an image in a specific column of a list display as the partial image in the case of vertical scrolling. apparatus.   7. The display control according to claim 1, wherein, in the case of horizontal scrolling, the control unit preferentially displays an image of a specific row in a list display as the partial image. apparatus.   The display control apparatus according to any one of claims 1 to 7, wherein the control unit thins and displays the images to be displayed in the list.   The display control apparatus according to claim 1, wherein an image prepared in advance is displayed at a position where the other image is displayed.   The display control apparatus according to claim 1, wherein the scroll operation is a drag operation to a touch panel provided on the screen.   In the middle of the drag operation to the touch panel, the control means preferentially displays some of the images to be displayed as a list during scrolling over other images, and performs a flick operation on the touch panel. The display of an image near the stop position of the inertia scroll is performed without performing display of an image to be displayed as a list during the inertia scroll during the inertia scroll later. 10. The display control device according to 10. A display control method in which images are displayed in a list on a screen arranged in multiple rows and multiple columns,
A display characterized by having a step of displaying a part of images among the images to be displayed in a list with priority over other images during a scrolling operation for scrolling the list display. Control method. A program for display control that arranges images in multiple rows and multiple columns and displays a list on the screen,
A program for causing a computer to execute processing for displaying a part of images among the images to be displayed in a list with priority over other images while a scroll operation for scrolling the list display is performed. .   A computer-readable storage medium storing the program according to claim 13.

Images