JP2014085703A - Content image display device, content image display method and content image display program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a memory usage amount relating to the display of a content image.SOLUTION: A content image display device 1 has content image display means 12a for acquiring content data from storage means 11, and displaying only content images within a browsed range, and content image replacement means 12c for displaying a covering object for coverage in front of the displayed content images, and making the covering object non-display by the replacement of the next content image during display of the covering object.

Description

  The present invention relates to a technique for displaying a content image.

  Currently, there is a document image display device capable of displaying a document image obtained by imaging a document. Since the display area is limited to the size of the screen, the display page of the document image displayed on the screen can be scrolled or switched according to the user's operation (FIG. 4, Non-Patent Document 1, 2).

“Electronic book“ Analysis of turning pages ””, Zerobase Journal, [online], [October 9, 2012 search], <URL: http://zerobase.jp/blog/2010/06/post_84 .html> "Compare reading viewer interface for iPad (Part 1)", PC Watch, [online], [October 9, 2012 search], <URL: http://pc.watch.impress.co.jp/ docs / topic / feature / 20100729_383964.html>

  However, not only the currently displayed display page is drawn on the screen, but also the previous and subsequent pages are drawn in advance outside the screen and under the currently displayed display page. I will use it.

  The present invention has been made in view of the above circumstances, and an object thereof is to improve the amount of memory used for displaying content images.

  The content image display device according to claim 1, wherein the content data is acquired from the storage unit, and only the content image in a range to be browsed is displayed on the screen, and the content image display unit covers the front of the displayed content image. And a content image replacement means for displaying the covered object and replacing it with the next content image during the display of the covered object to hide the covered object.

  According to the present invention, only the content image of the range to be viewed is displayed on the screen and replaced with the next content image during display of the covering object, while ensuring visual feedback related to the content image replacement processing, The amount of memory used for displaying content images can be reduced.

  The content image display device according to claim 2 is the content image display device according to claim 1, wherein the content image replacement means slides in and displays the covering object in accordance with the direction of the operation of sliding the screen. The gist is to do.

  According to the present invention, since the covering object is slid in and displayed in accordance with the direction of the operation of sliding the screen, sensory and visual feedback such as the turning feeling of the content image and the turning direction of the user operation is ensured. it can.

  The content image display device according to claim 3 is the content image display device according to claim 2, wherein the content image replacement means slides out the covered object in the same direction as the slide-in direction. .

  According to the present invention, since the covered object is slid out in the same direction as the sliding-in direction, sensory and visual feedback such as the turning feeling and turning direction of the content image with respect to the user's operation can be ensured more reliably.

  The content image display device according to claim 4 is the content image display device according to any one of claims 1 to 3, wherein the content image replacement unit generates the next content image during display of the covering object. The gist is to replace them.

  According to the present invention, since the next content image is generated and replaced during the display of the covering object, it is not necessary to generate the next content image in advance. Can be reduced.

  A content image display device according to a fifth aspect is the content image display device according to any one of the first to fourth aspects, wherein the covering object is a colored screen including translucency.

  According to the present invention, since the covering object is colored, the turning feeling of the content image can be expressed more appropriately than when the covering object is colorless and transparent. Further, since the covering object is a screen of one object, it is possible to reduce the amount of memory used and the processing cost for the display processing and slide processing compared to the content image that may be composed of many or complex objects.

  The content image display device according to claim 6 is characterized in that, in the content image display device according to claim 5, the color of the colored screen is adjusted to match the background color of the content image.

  According to the present invention, since the color of the colored screen is adjusted so as to match the background color of the content image, it is possible to reduce a sense of discomfort when turning the content image, and to reduce visual stress that occurs at that time.

  The content image display device according to claim 7 is the content image display device according to any one of claims 1 to 6, wherein the content data is an electronic book composed of horizontally written or vertically written documents or images. Is the gist.

  According to the present invention, since the content data is an electronic book composed of horizontally written or vertically written documents or images, it is possible to deal with right-open novels, left-opened documents, picture books as image collections, and the like.

  The content image display device according to claim 8 is the content image display device according to claim 7, wherein the content image replacement means replaces the content image when turning the page of the electronic book.

  According to the present invention, since the content image is replaced when turning the page of the electronic book, it is possible to more appropriately secure the visual feedback related to the content image replacement processing.

  The content image display device according to claim 9 is the content image display device according to any one of claims 1 to 8, wherein the storage unit is arranged on a communication network, and the content image display unit is connected to the storage unit. The gist is to display the content image on the screen while acquiring the content data.

  According to the present invention, since the content image is displayed on the screen while acquiring the content data from the storage means arranged on the communication network, it is possible to cope with streaming.

  The content image display method according to claim 10, wherein the computer acquires content data from the storage means, displays only the content image in the range to be browsed on the screen, and covers the front of the displayed content image. A covering object is displayed, and the covering object is replaced with the next content image while the covering object is displayed, and the covering object is hidden.

  According to the present invention, only the content image of the range to be viewed is displayed on the screen and replaced with the next content image during display of the covering object, while ensuring visual feedback related to the content image replacement processing, The amount of memory used for displaying content images can be reduced.

  The content image display program according to claim 11 is a processing for acquiring content data from a storage means on a computer and displaying only content images in a range to be browsed on a screen, and covering the front of the displayed content image. The gist of the present invention is to display a covered object, and replace the next content image while the covered object is displayed to execute the process of hiding the covered object.

  According to the present invention, only the content image of the range to be viewed is displayed on the screen and replaced with the next content image during display of the covering object, while ensuring visual feedback related to the content image replacement processing, The amount of memory used for displaying content images can be reduced.

  According to the present invention, it is possible to reduce the amount of memory used for displaying content images.

It is a figure which shows the functional block structure of a content image display apparatus. It is a figure which shows the operation | movement flow of a content image display apparatus. It is a figure which shows the operation | movement image of a page transition. It is a figure which shows the operation image of the conventional page transition.

  The present invention is characterized in that only content images in a range to be browsed on the screen are displayed on the screen, and are replaced with the content image of the next page at the time of page transition, whereby the memory related to the display of the content image The amount used is reduced.

  Hereinafter, an embodiment for carrying out the present invention will be described with reference to the drawings. However, the present invention can be implemented in many different modes and should not be construed as being limited to the description of the present embodiment.

  First, functions of the content image display device 1 according to the present embodiment will be described with reference to FIG. The content image display device 1 operates in a portable terminal such as an electronic book terminal having a touch panel, and stores a data storage unit 11 that stores content data to be displayed, and a content image obtained by imaging the content data. It is mainly comprised by the page display part 12 displayed on a screen.

  The page display unit 12 includes a plurality of functional units. Specifically, a rendering unit 12a that generates only a content image in a range to be viewed on the screen and displays it on the screen, an operation reception unit 12b that receives an operation input to the screen by the user, and a covering that covers the content image And a mask control unit 12c that displays / hides the object on the screen.

  The content image display device 1 having such a function can be realized by a computer having a memory and a CPU. These functions are executed by a program programmed to realize each function.

  Next, a book image display operation performed by the content image display device 1 will be described with reference to FIGS. 2 and 3. Hereinafter, a case where an electronic book is used as an example of content data will be described.

  First, the rendering unit 12a reads an electronic book from the data storage unit 11 (step S101), edits characters and images in the electronic book, and generates only a book image in a range that can be viewed on the screen. It is displayed on the screen (step S102).

  For example, in the case of a document such as a vertically written novel or a horizontally written document spanning multiple columns and multiple rows, layout processing is performed to rearrange the arrangement of characters and charts to fit within the screen size and specified range. Only generate book images. If the image object does not fit on the screen size, the layout processing is performed after the object is reduced to fit on the screen.

  Next, the operation accepting unit 12b accepts an operation input to the screen by the user (step S103), and determines whether or not the accepted operation is a turning operation for sliding the page (step S104).

  The turning operation is a flick operation in which the user's finger or the like that touches the screen of the mobile terminal is slightly slid, and is an operation performed by the user when the currently displayed page is changed to the next page. As a circuit and a function for detecting a turning operation and a turning direction, an existing one provided in an electronic book terminal or the like can be used.

  Next, when the result of determination in step S104 is that the user's operation is a turning operation, the mask control unit 12c turns the covering object 3 that is larger than the screen or page, as shown in FIG. Slide in according to the direction (direction of operation for sliding the screen) (step S105). Thereby, the covering object is displayed in front of the page of the book image currently being displayed.

  For example, when the display target is a right-open electronic book and the process proceeds to the next page, the white screen is slid in accordance with the turning direction from left to right. This makes it possible to easily grasp which direction the page is being turned while expressing the feeling of turning the page.

  Next, while the entire screen is covered with the covering object, the rendering unit 12a generates a book image of the next page by the same method as in step S102 (step S106), and is shown in FIG. In this manner, the currently displayed page is replaced with the next page (step S107).

  Specifically, the book image of the page currently displayed is deleted, and the book image of the next page is drawn on the back surface of the covering object, thereby switching the book image between two adjacent pages.

  Finally, after the page replacement is completed, the mask control unit 12c slides out the covering object displayed on the front surface on the screen in the same direction as the turning direction (see FIG. 3C). Step S108). As a result, the covering object is hidden, and the book image of the next page drawn on the back is displayed on the screen.

  Thereafter, after step S108, the process returns to step S103, and steps S103 to S108 are repeated. If the determination result in step S104 is that the user operation is other than a turning operation, the process returns to step S103, and steps S103 to S104 are repeated until it is determined to be a turning operation.

  In step S106, the case where the book image is generated while the covering object is displayed has been described. However, the book image is generated for each page in advance, and is read out from the memory while the covering object is displayed and used. You may make it do.

  As described above, according to the present embodiment, only the book image in the range to be browsed is displayed on the screen and replaced with the next book image while the covering object is displayed. Thus, it is possible to reduce the memory usage related to the display of the book image while ensuring visual feedback related to the book image replacement process.

  In addition, according to the present embodiment, the covering object is slid in and displayed in accordance with the direction of the operation of sliding the screen. Can assure safe feedback.

  In addition, according to the present embodiment, the covering object is slid out in the same direction as the sliding-in direction, so that sensory and visual feedback such as the turning feeling and turning direction of the book image in response to the user's operation is more reliably performed. Can be secured.

  Further, according to the present embodiment, since the next book image is generated and replaced while the covering object is displayed, it is not necessary to generate the next book image in advance. The amount used can be further reduced.

  Further, in the present embodiment, since a white screen is used as the covering object, it is possible to more appropriately express the turning feeling of the book image than when it is colorless and transparent. In addition, since the screen of one object is used as the covering object, it is more than a book image page that may be composed of a large number or a complex object that is generated by imaging and combining individual characters. Thus, it is possible to reduce the memory usage and processing cost related to page display processing and slide processing.

  In addition, according to the present embodiment, since the content data is an electronic book composed of horizontally written or vertically written documents or images, it can be used for right-opening novels, left-opening documents, picture books as image collections, and the like. Can also respond.

  Moreover, according to this Embodiment, since a book image is replaced when turning the page of an electronic book, the visual feedback regarding the replacement process of a book image can be ensured more appropriately.

  Subsequently, a modification of the present embodiment will be described. Instead of slid in and displaying the covered object, and slid out and hidden, the covered object may be simply displayed and hidden without sliding. Even in this case, an effect of reducing the memory usage can be obtained.

  Further, instead of sliding out in the same direction as the sliding-in direction, the sliding-out direction may be different from the sliding-in direction. That is, an arbitrary method can be used as a specific method for hiding the covered object.

  Further, instead of sliding the covering object from left to right, the covering object may be slid from right to left, from top to bottom, and from bottom to top.

  Further, instead of changing the page according to the turning operation of the user, the page may be changed by a simple touch operation to the page change button for changing the screen or the page of the mobile terminal. Furthermore, automatic page transition without operation is also conceivable, and in this case, operation is possible within a portable terminal that does not have a touch panel.

  Also, a plurality of operations among the above operations may be assigned as page turning operations, and pages may be changed when any one operation is performed.

  Further, a colored screen composed of a single color or a plurality of colors including translucent may be used instead of the covering object of the white screen. For example, a screen in which only a portion corresponding to the size of the page screen is white and a portion exceeding the portion is gradually transparent toward the outside can be considered.

  Since the page transition is performed in several milliseconds, the shape and size of the covering object is not apparent, and thus it is possible to use a covering object having an arbitrary shape and an arbitrary size.

  In addition, since the color can be specified by a parameter due to the characteristics of the information processing technology field, the color of the colored screen may be adjusted to match the background color of the book image. For example, when black characters are written on a white background, the background color of the book image and the color of the cover object become the same color by changing the color of the cover object to white. It is possible to reduce the uncomfortable feeling when turning the screen, and to reduce the visual stress generated at that time. In addition, even if the colors are not the same, the same effect can be obtained even if the colors are similar (including translucent).

  In addition, about the method of acquiring the same or similar color from a book image, arbitrary methods can be utilized. For example, there is a method of calculating the luminance value of the background portion of the book image and obtaining the average value.

  A method for designating a color other than the similar color is also conceivable. For example, by specifying black, the screen can be blacked out when turning the page, and then the next page can be displayed. Similarly, if a similar color is specified that is darker than the background, it can be expected to reduce visual stress while obtaining the same effect as during blackout.

  Finally, instead of using an electronic book stored in the content image display device 1, an electronic book in a content image storage device arranged on a communication network such as the Internet may be used. This makes it possible to support streaming.

DESCRIPTION OF SYMBOLS 1 ... Content image display apparatus 11 ... Data storage part 12 ... Page display part 12a ... Rendering part (content image display means, content image replacement means)
12b ... Operation accepting unit 12c ... Mask control unit (content image replacement means)
3 ... Covered object S101-S108 ... Step

Claims (11)

Content image display means for acquiring content data from the storage means and displaying only content images in a range to be viewed on the screen;
A content image replacement means for displaying a covering object for covering on the front of the displayed content image, replacing the next content image during display of the covering object, and hiding the covering object;
A content image display device comprising: The content image replacement means includes:
The content image display device according to claim 1, wherein the covering object is slid in and displayed in accordance with an operation direction of sliding the screen. The content image replacement means includes:
The content image display apparatus according to claim 2, wherein the covering object is slid out in the same direction as the sliding-in direction. The content image replacement means includes:
The content image display apparatus according to claim 1, wherein the next content image is generated and replaced while the covering object is displayed. The covering object is
5. The content image display device according to claim 1, wherein the content image display device is a colored screen including translucency. The color of the colored screen is
6. The content image display device according to claim 5, wherein the content image display device is adjusted to match a background color of the content image. The content data is
7. The content image display device according to claim 1, wherein the content image display device is a horizontally written or vertically written document or an electronic book composed of images. The content image replacement means includes:
8. The content image display device according to claim 7, wherein the content image is replaced when turning the page of the electronic book. The storage means is disposed on a communication network;
The content image display means includes
The content image display apparatus according to claim 1, wherein the content image is displayed on the screen while acquiring the content data from the storage unit. By computer
Acquiring content data from storage means and displaying only content images in a range to be viewed on the screen;
Displaying a covering object for covering on the front of the displayed content image, replacing the next content image during display of the covering object, and hiding the covering object;
A content image display method characterized by comprising: On the computer,
Processing for acquiring content data from the storage means and displaying only content images in a range to be viewed on the screen;
A process of displaying a covering object for covering on the front of the displayed content image, replacing the next content image during display of the covering object, and hiding the covering object;
A content image display program characterized in that

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