Multimedia information retrieval method, program, record medium and system
First Claim
1. A multimedia information retrieval method comprising:
- a word frequency extraction step using as information sets paired image information and text information correlated to each other and extracting constituent word frequency information from said text information within said information sets;
a text feature extraction step extracting text features, based on said word frequency information of individual information sets;
an information set classification and layout step classifying and laying out said information sets in a virtual space, based on said text features;
a label feature extraction step selecting labels from constituent words of said text information within each information set and extracting features of selected labels;
a label layout step placing labels at positions corresponding to information sets classified and laid out in the virtual space, based on said label features; and
an information display step displaying image information and labels of said information sets, placed in said virtual space, depending on the positions of the viewpoint.
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Accused Products
Abstract
Paired image information and text information correlated to each other are retrieved as information sets. Frequency information on words used in text is extracted from text information in a group of information sets, and text information features are extracted based on frequency information. Text features are used to lay out information sets in a virtual space such that similar pieces of text are located close to each other, and images are displayed at those positions. Further, important words are extracted from those words extracted from text information in a group of information sets, and those words are laid out in the virtual space in the same manner as with information sets and displayed as labels.
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Citations
21 Claims
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1. A multimedia information retrieval method comprising:
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a word frequency extraction step using as information sets paired image information and text information correlated to each other and extracting constituent word frequency information from said text information within said information sets; a text feature extraction step extracting text features, based on said word frequency information of individual information sets; an information set classification and layout step classifying and laying out said information sets in a virtual space, based on said text features; a label feature extraction step selecting labels from constituent words of said text information within each information set and extracting features of selected labels; a label layout step placing labels at positions corresponding to information sets classified and laid out in the virtual space, based on said label features; and an information display step displaying image information and labels of said information sets, placed in said virtual space, depending on the positions of the viewpoint. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A computer readable record medium having therein stored a program for retrieving multimedia information, said program allowing a computer to execute:
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a word frequency extraction step using as information sets paired image information and text information correlated to each other and extracting constituent word frequency information from said text information within said information sets a text feature extraction step extracting text features, based on said word frequency information of individual information sets; an information set classification and layout step classifying and laying out said information sets in a virtual space, based on said text features; a label feature extraction step selecting labels from constituent words of said text information within each information set and extracting features of selected labels; a label layout step placing labels at positions corresponding to information sets classified and laid out in the virtual space, based on said label features; and an information display step displaying image information and labels of said information sets, placed in said virtual space, depending on the positions of the viewpoint. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A multimedia information retrieval system comprising:
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a word frequency extraction unit using as information sets paired image information and text information correlated to each other and extracting constituent word frequency information from said text information within said information sets; a text feature extraction unit extracting text features, based on said word frequency information of individual information sets; an information set classification and layout unit classifying and laying out said information sets in a virtual space, based on said text features; a label feature extraction unit selecting labels from constituent words of said text information within each information set and extracting features of selected labels; a label layout unit placing labels at positions corresponding to information sets classified and laid out in the virtual space, based on said label features; and an information display unit displaying image information and labels of said information sets, placed in said virtual space, depending on the positions of the viewpoint.
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Specification