JP2009176217A - Image display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an image display device capable of arranging an image representing a folder in an appropriate display position in relation to an image representing a document file even when an image representing a folder is included in images to be displayed on a screen in addition to an image representing a document file. <P>SOLUTION: While a feature value of a document file is extracted (S12), the feature value of a folder is extracted based on the feature value of a content contained in the folder (S16). Thereby, the display position of each image is determined in such a manner that the distance between images whose feature value is similar to each other becomes small (S14, S18). <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an image display device, and more particularly to an image display device that displays a plurality of images each representing content on a screen.

  Conventionally, as a method for displaying a plurality of thumbnail images representing contents on the screen, each image representing a similar content among the plurality of contents is displayed in the vicinity on the screen so that a desired content can be displayed. Some make it easier for users to identify.

  For example, as a conventional image display device of this type, a search map composed of images that are two-dimensionally arranged by reducing thumbnails each consisting of an image showing an outline of content is generated and searched according to a user operation. Generates an image of the pointer that moves on the map, and generates a detailed image that displays the thumbnails that are located within the selected range of the moved pointer in the original size while maintaining the positional relationship of the thumbnails within the selected range. There is one that generates a display screen in which a pointer and a detailed image are superimposed on the upper side of a search map (for example, see Patent Document 1).

  Further, as a conventional image display device, when a thumbnail representing an outline of information content is arranged and displayed on a map, and a user instructs a point in a specific small area among a plurality of small areas obtained by dividing the map , A small area group centered on a specific small area is set as the enlargement target area, the thumbnails arranged in the enlargement target area are enlarged and the contents are displayed in detail, and the small area group around the enlargement target area is saved In some cases, thumbnails arranged in the save target area are saved and displayed so as not to overlap with thumbnails displayed in an enlarged manner (for example, see Patent Document 2).

Further, as a conventional image display device, in order to search in a search target information group composed of a large number of search target information, each search target information is located at a position where the similarity between the search target information is close to each other. The search target layer is formed by arranging in a hierarchical space composed of a two-dimensional or three-dimensional space so that the search target layer is the nth search target layer, and each block divided into a plurality of blocks is The search target information selected as representative from the included search target information is arranged in another hierarchical space to form the (n-1) th search target layer, and this is repeated recursively to the first. Can be obtained by virtually constructing a three-dimensional target search space including the n th search target layer and viewing the target search space from a viewpoint having a line of sight from the top to the bottom of the target search space hierarchy. Display the search image on the screen And some (e.g., see Patent Document 3).
JP 2004-178384 A JP 2004-258838 A JP-A-9-259130

  However, in such a conventional image display device, when an image displayed on the screen includes a document file representing a folder in addition to a document file representing an image representing the document file, There is a problem that an image representing a folder cannot be arranged at an appropriate display position.

  The present invention has been made to solve the conventional problems, and even when an image to be displayed on the screen includes a document file even if a document file is included. An object of the present invention is to provide an image display device capable of arranging an image representing a folder at an appropriate display position with respect to an image representing the image.

  An image display device according to the present invention is an image display device that displays a plurality of images each representing content on a screen, and extracts a document file feature amount that extracts a feature amount of a content composed of a document file from the plurality of contents A folder feature amount extraction unit that extracts a feature amount of a content that is a folder among the plurality of contents, and a display position determination unit that determines a display position of each image, the folder feature amount extraction unit Extracts the feature amount of the folder based on the feature amount of the content included in the folder, and the display position determination unit is configured to reduce the distance between the images representing the content having the close feature amount. The display position of each image is determined.

  With this configuration, the image display device of the present invention extracts the feature amount of the document file and extracts the feature amount of the folder based on the feature amount of the content included in the folder, thereby expressing the content having a similar feature amount. In order to determine the display position of each image so that the distance between each image is close, even if the image displayed on the screen includes a folder representing in addition to a document file representing The image representing the folder can be arranged at an appropriate display position with respect to the image representing the document file.

  A display size determining unit that determines the display size of an image representing the folder based on the feature amount of the content included in the folder may be further provided.

  With this configuration, the image display apparatus of the present invention can make it easier for the user to grasp the characteristics of the content included in the folder.

  For example, the display size determination unit determines the display size of the image representing the folder so that the display size of the image representing the folder becomes larger as the variation in the feature amount of the content included in the folder increases. May be.

  With this configuration, the image display apparatus of the present invention can make it easy for the user to grasp the degree of variation in the feature amount of the content included in the folder.

  The display size determination unit may determine a display size of an image representing the folder based on the number of contents included in the folder.

  With this configuration, the image display device of the present invention can make it easy for the user to grasp the number of contents included in a folder.

  The image display device according to the present invention further includes an image generation unit that selects representative content as a representative from the contents included in the folder and generates an image including an image representing the selected representative content as an image of the folder. You may make it prepare.

  With this configuration, the image display apparatus of the present invention can make it easier for the user to grasp the characteristics of the content included in the folder.

  For example, the image generation unit may select a content having a feature amount close to the feature amount of the folder among the contents included in the folder as the representative content.

  With this configuration, the image display apparatus of the present invention can make the user recognize the content having the most average characteristic included in the folder.

  Further, the image generation unit may select a plurality of representative contents when the variation in the feature amount of the content included in the folder is larger than a predetermined amount.

  With this configuration, the image display apparatus of the present invention can allow the user to recognize a plurality of representative contents included in the folder when the variation in the feature amount of the contents included in the folder is large.

  The image display method of the present invention is an image display method for displaying a plurality of images each representing a content on a screen using an image display device, and extracting a feature amount of a content made up of a document file from the plurality of contents A document file feature amount extracting step, a folder feature amount extracting step for extracting a feature amount of a content consisting of a folder among the plurality of contents, and a display position determining step for determining a display position of each image. In the folder feature amount extraction step, the feature amount of the folder is extracted based on the feature amount of the content included in the folder, and in the display position determination step, between the images representing the content having the close feature amount The display position of each image is determined so that the distance is short.

  With this method, the feature amount of the document file is extracted, and the feature amount of the folder is extracted based on the feature amount of the content included in the folder, so that the distance between each image representing the content having the close feature amount is reduced. In order to determine the display position of each image as described above, even if the image displayed on the screen includes a document file representing a folder in addition to a document file representing an image representing the document file, Thus, the image representing the folder can be arranged at an appropriate display position.

  According to the present invention, even if an image displayed on the screen includes a document file representing a folder in addition to a document file representing an image representing a document file, It is possible to provide an image display device that can be arranged at various display positions.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, an image display device 1 according to an embodiment of the present invention includes a CPU (Central Processing Unit) 10, a ROM (Read-Only Memory) 11, a RAM (Random Access Memory) 12, The computer device includes a hard disk device 13, an input device 14 including a keyboard device and a pointing device, and a display device 15 including a liquid crystal display.

  The ROM 11 and the hard disk device 13 store a program for causing the computer device to function as the image display device 1. The CPU 10 controls each unit of the image display device 1 by executing a program stored in the ROM 11 or the hard disk device 13 while reading it into the RAM 12.

  The hard disk device 13 stores a plurality of document files in a hierarchy by folders. In the present invention, document files and folders in each hierarchy are collectively referred to as “content”.

  Further, in order to facilitate understanding of the present invention, an example in which each document file represents an image will be described in the present embodiment, but each document file may represent character information, video, audio, etc. The type of document file applied to the image display apparatus according to the present invention is not limited.

  The CPU 10 extracts the feature amount of each document file stored in the hard disk device 13. Here, in the present embodiment, the feature amount of the document file is obtained from the document file such as the creation date and time, the creator, the format and size, and the saturation, hue and luminance of the image represented by the document file. Consists of multiple elements. Thus, the CPU 10 constitutes a document file feature amount extraction unit in the present invention.

  Further, the CPU 10 extracts the feature amount of each folder stored in the hard disk device 13. Here, the CPU 10 calculates an average value or a center value of each element of the feature amount of the content included in the folder, and uses the calculated element as the feature amount of the folder. Thus, CPU10 comprises the folder feature-value extraction part in this invention.

  When the folder includes a folder in a lower hierarchy, the CPU 10 extracts the feature quantity of the lower hierarchy folder and then extracts the feature quantity of the folder.

  In addition, the CPU 10 determines the display position of each image so that the distance between the images representing the content having the similar feature amount is short. Specifically, the CPU 10 displays the display position of an image representing each content based on a self-organizing map that associates n-dimensional coordinates with two-dimensional coordinates, where n is the number of elements constituting the feature amount of the content. Is to decide. Thus, CPU10 comprises the display position determination part in this invention.

  Here, the CPU 10 may determine the display position of an image representing each content based on a self-organizing map stored in advance in the hard disk device 13 or the like, and the content stored in the hard disk device 13 as a sample. An organized map may be generated, and a display position of an image representing each content may be determined based on the generated self-organized map.

  When the CPU 10 generates a self-organizing map using the content stored in the hard disk device 13 as a sample, the number of content (samples) stored in the hard disk device 13 is m, and the elements constituting the feature amount of the content When the number is n, m feature vectors of n dimensions are generated, and each feature vector is arranged in a two-dimensional space as shown in FIG. 2 so that the Euclidean distance between the feature vectors is reduced. It is like that.

  When the generated self-organizing map is used, the CPU 10 detects the feature vector having the closest Euclidean distance to the feature vector generated from each content from the feature vector mapped by the self-organizing map. The display position of the image representing each content is determined by arranging the feature vector generated from each content in the vicinity of the detected feature vector.

  The CPU 10 preferably extracts the feature amount of the folder based on the feature amount of all the contents included in the folder when generating the feature amount vector of the folder. However, in order to shorten the processing time, The feature amount of the folder may be extracted based on the feature amount of a part of the content included in the folder (for example, a predetermined number of contents in the order of detection).

  Further, the CPU 10 determines the display size of the image representing the folder based on the feature amount of the content included in the folder. Specifically, the CPU 10 calculates the variance of the feature amount of the content included in the folder, and determines the display size based on the calculated variance.

  That is, the CPU 10 determines the display size of the image representing the folder so that the display size of the image representing the folder becomes larger as the variation in the feature amount of the content included in the folder increases. Thus, CPU10 comprises the display size determination part in this invention.

  Further, the CPU 10 generates an image representing each content. In particular, the CPU 10 selects representative content as a representative among the contents included in the folder, and generates an image including an image representing the selected representative content as an image of the folder. Thus, CPU10 comprises the image generation part in this invention.

  Specifically, the CPU 10 selects content having a feature amount close to the feature amount of the folder as the representative content from the contents included in the folder.

  In this manner, the CPU 10 determines the display position and display size of each content, generates an image of each content, and displays each image on the screen of the display device 15 as shown in FIG. .

  The operation of the image display device 1 configured as described above will be described with reference to FIGS.

  FIG. 4 is a flowchart showing a self-organizing map generation operation of the image display apparatus 1. The flowchart shown in FIG. 4 shows an example in which the CPU 10 generates a self-organizing map using all contents stored in the hard disk device 13 as samples.

  In this self-organizing map generation operation, the CPU 10 executes the following processing (S1 to S5) for each content of the highest hierarchy. First, the CPU 10 determines whether or not the content is a folder (S1).

  Here, if it is determined that the content is a folder, a self-organizing map generation operation is recursively performed on the folder (S2), that is, for each content in the hierarchy of the folder. Steps S1 to S5 are executed by the CPU 10.

  On the other hand, when it is determined that the content is not a folder, that is, a document file, the CPU 10 extracts a feature amount from the content (S3) and generates a feature amount vector (S4).

  The generated feature quantity vectors are arranged on the two-dimensional space by the CPU 10 so that the Euclidean distance between the feature quantity vectors is close (S5). Thus, when all the feature vectors are arranged in the two-dimensional space, the generation of the self-organizing map is completed.

  FIG. 5 is a flowchart showing the display operation of the image display apparatus 1. Note that the flowchart shown in FIG. 5 shows an example in which an image representing one content is displayed when the self-organizing map has already been generated. The display operation described below is performed on the content.

  In FIG. 5, first, the CPU 10 determines whether or not the content is a folder (S11). Here, when it is determined that the content is not a folder, that is, a document file, the CPU 10 extracts a feature amount from the content (S12) and generates a feature amount vector (S13).

  Next, the feature quantity vector having the closest Euclidean distance to the feature quantity vector is detected from the feature quantity vector mapped by the self-organizing map, and the feature quantity generated from the content in the vicinity of the detected feature quantity vector The vector is arranged by the CPU 10, and the display position of the image representing the content is determined (S14). In addition, an image representing each content is generated by the CPU 10 (S15).

  On the other hand, if it is determined in step S11 that the content is a folder, the CPU 10 executes a folder feature amount extraction operation (S16). In the folder feature amount extraction operation, as shown in FIG. 6, the following processing (S31 to S33) is executed for each content included in the folder.

  First, the CPU 10 determines whether or not the content is a folder (S31). If it is determined that the content is a folder, a folder feature amount extraction operation is recursively performed on the folder (S32), that is, for each content in the hierarchy of the folder. Steps S31 to S33 are executed by the CPU 10.

  On the other hand, if it is determined that the content is not a folder, that is, a document file, the CPU 10 extracts a feature amount from the content (S33).

  As described above, the CPU 10 calculates the feature amount of the folder based on the extracted feature amount of each content (S34). Here, it is assumed that the average value of each element of the feature amount of each content is calculated by the CPU 10 as the feature amount of the folder.

  When the feature amount of the folder is extracted in step S16 of FIG. 5, the feature amount vector of the folder is generated by the CPU 10 (S17). Next, the feature quantity vector having the closest Euclidean distance to the feature quantity vector is detected from the feature quantity vector mapped by the self-organizing map, and the feature quantity generated from the content in the vicinity of the detected feature quantity vector The vector is arranged by the CPU 10, and the display position of the image representing the folder is determined (S18).

  Next, the distribution of the feature amount of the content included in the folder is calculated by the CPU 10, and the display size of the folder is determined based on the calculated distribution (S19). Also, representative content that is representative among the content included in the folder is selected by the CPU 10 (S20), and an image including an image representing the selected representative content is generated as an image of the folder (S21).

  In this way, the display position and display size of the content are determined by the CPU 10, an image of the content is generated, and the image of the content is displayed on the screen of the display device 15 as shown in FIG. 3 (S22). ).

  As described above, the image display device 1 extracts the feature amount of the document file, and extracts the feature amount of the folder based on the feature amount of the content included in the folder, so that the content having a similar feature amount can be obtained. In order to determine the display position of each image so that the distance between each image to be displayed is close, the image to be displayed on the screen includes a document representing a folder in addition to a document file representing In addition, the image representing the folder can be arranged at an appropriate display position with respect to the image representing the document file.

  In the present embodiment, it is assumed that the CPU 10 determines the feature amount calculated based on the feature amount of the content included in the folder as the feature amount of the folder, and determines the display position of the folder based on the feature amount. However, the CPU 10 may determine the display position of each content included in the folder, and determine the average value or the center value of the display positions of these contents as the folder display position.

  Further, in the present embodiment, the content of a plurality of elements obtained from the document file such as the creation date / time, creator, format and size, and the saturation, hue and luminance of the image represented by the document file are displayed. Although it has been described that the CPU 10 generates a feature vector from the feature, the CPU 10 may generate the feature vector after weighting each element of the feature of the content.

  In the present embodiment, the CPU 10 is described as displaying an image representing each content on the orthogonal coordinate system. However, the CPU 10 may display an image representing each content on the polar coordinate system.

  In the present embodiment, the CPU 10 calculates the distribution of the feature amount of the content included in the folder and determines the display size of the image representing the folder based on the calculated distribution. The CPU 10 may determine the display size of the image representing the folder in accordance with the number of contents included in the folder.

  In the present embodiment, the CPU 10 selects a content having a feature amount close to the feature amount of the folder as the representative content from the content included in the folder, and selects an image including an image representing the selected representative content. It has been described as being generated as a folder image.

  However, if the distribution of the feature amount of the content included in the folder is larger than a predetermined value, the CPU 10 distributes the content included in the folder to a plurality of groups according to the feature amount, Representative content may be selected, and an image representing each representative content may be displayed at a position corresponding to each group, as shown in FIG.

  In FIG. 3, the shape of the image representing the folder is shown as a substantially rectangular shape, but the shape of the image representing the folder is not limited. For example, the shape of the image representing the folder may be a circle, a polygon, or a closed curve that includes an image representing the content included in the folder, as shown in FIG.

1 is a block diagram illustrating an image display device according to an embodiment of the present invention. It is a conceptual diagram of the self-organization map referred by the image display apparatus of one embodiment of this invention. It is an image of each image showing the content displayed by the image display apparatus of one embodiment of this invention. It is a flowchart which shows the self-organization map production | generation operation | movement of the image display apparatus of one embodiment of this invention. It is a flowchart which shows the display operation of the image display apparatus of one embodiment of this invention. It is a flowchart which shows the folder feature-value extraction operation | movement of the image display apparatus of one embodiment of this invention. It is a 1st other image of each image showing the content displayed by the image display apparatus of one embodiment of this invention. It is the 2nd other image of each image showing the content displayed by the image display apparatus of one embodiment of this invention.

Explanation of symbols

1 Image display device 10 CPU
11 ROM
12 RAM
13 Hard Disk Device 14 Input Device 15 Display Device

Claims (8)

An image display device that displays a plurality of images each representing content on a screen,
A document file feature amount extraction unit that extracts a feature amount of a content including a document file among the plurality of contents;
A folder feature amount extraction unit that extracts a feature amount of a content including a folder among the plurality of contents;
A display position determining unit that determines a display position of each image,
The folder feature amount extraction unit extracts the feature amount of the folder based on the feature amount of the content included in the folder,
The display position determining unit determines the display position of each image so that the distance between each image representing the content having the similar feature amount is short.   The image display device according to claim 1, further comprising: a display size determining unit that determines a display size of an image representing the folder based on a feature amount of content included in the folder.   The display size determination unit determines the display size of an image representing the folder so that the display size of the image representing the folder increases as the variation in the feature amount of the content included in the folder increases. The image display device according to claim 2.   The image display device according to claim 2, wherein the display size determination unit determines a display size of an image representing the folder based on the number of contents included in the folder.   2. The image processing apparatus according to claim 1, further comprising: an image generation unit that selects representative content as a representative from the contents included in the folder, and generates an image including an image representing the selected representative content as an image of the folder. The image display device according to claim 3.   The image display device according to claim 5, wherein the image generation unit selects content having a feature amount close to the feature amount of the folder among the contents included in the folder as representative content.   The image display device according to claim 5, wherein the image generation unit selects a plurality of representative contents when the variation in the feature amount of the content included in the folder is larger than a predetermined amount. . An image display method for displaying a plurality of images each representing content on a screen using an image display device,
A document file feature amount extracting step for extracting a feature amount of a content consisting of a document file among the plurality of contents;
A folder feature amount extraction step for extracting a feature amount of a content consisting of a folder among the plurality of contents;
A display position determining step for determining a display position of each image,
In the folder feature amount extraction step, the feature amount of the folder is extracted based on the feature amount of the content included in the folder,
In the display position determining step, the display position of each image is determined so that the distance between each image representing the content having the similar feature amount is close.

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