Information service system responsive to user's pointing manipulation
First Claim
Patent Images
1. An information service system comprising:
- a database which stores data for explaining a plurality of items or terms;
means for picking up image information of a visual medium on which one or more items or terms are displayed;
first obtaining means for obtaining first image information of the visual medium from said picking up means;
second obtaining means for obtaining second image information representing a visual pointing object and a specific item or term on the visual medium from said picking up means, wherein the specific item or term is pointed by the visual pointing object;
tip position detecting means for detecting a tip position of the visual pointing object from the first and second image information obtained by said first and second obtaining means;
word recognizing means for recognizing a keyword included in image data of the specific item or term from the first image information obtained by said first obtaining means, wherein the recognized keyword is located at a particular position of the visual medium and the particular position corresponds to the tip position of the visual pointing object detected by said detecting means;
means for searching said database in accordance with the keyword corresponding to the image data of the specific item or term recognized by said word recognizing means, so as to find explanation information for the specific item or term; and
means for outputting the explanation information found by said searching means.
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Abstract
A predetermined position on a paper sheet is pointed by a finger, and a first image of the paper sheet picked up by an image pickup device before pointing by the finger is stored. A second image of the paper sheet picked up by the image pickup device upon pointing by the finger is stored. By subtracting the first image from the second image, the pointed position on the paper sheet by the finger is detected. The meaning or content data of a term at the detected position is read out from a database, and is displayed.
38 Citations
18 Claims
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1. An information service system comprising:
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a database which stores data for explaining a plurality of items or terms; means for picking up image information of a visual medium on which one or more items or terms are displayed; first obtaining means for obtaining first image information of the visual medium from said picking up means; second obtaining means for obtaining second image information representing a visual pointing object and a specific item or term on the visual medium from said picking up means, wherein the specific item or term is pointed by the visual pointing object; tip position detecting means for detecting a tip position of the visual pointing object from the first and second image information obtained by said first and second obtaining means; word recognizing means for recognizing a keyword included in image data of the specific item or term from the first image information obtained by said first obtaining means, wherein the recognized keyword is located at a particular position of the visual medium and the particular position corresponds to the tip position of the visual pointing object detected by said detecting means; means for searching said database in accordance with the keyword corresponding to the image data of the specific item or term recognized by said word recognizing means, so as to find explanation information for the specific item or term; and means for outputting the explanation information found by said searching means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An information service method using a database which stores data for explaining a plurality of items or terms, said information service method comprising the steps of:
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picking up image information of a visual medium on which one or more items or terms exist; obtaining first image information of the visual medium from said image information; obtaining second image information representing a visual pointing object and a specific item or term on the visual medium from said image information, wherein the specific item or term is pointed by the visual pointing object; detecting a tip position of the visual pointing object from the first and second image information; recognizing a keyword included in image data of the specific item or term from the first image information, wherein the recognized keyword is located at a particular position of the visual medium and the particular position corresponds to the tip position of the visual pointing object; searching said database in accordance with the keyword corresponding to the image data of the specific item or term recognized by said recognizing step, so as to find explanation information for the specific item or term; and outputting the explanation information. - View Dependent Claims (12, 13, 14, 15, 16)
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17. An apparatus for assisting a knowledge of a user in response to a pointing operation of the user, said apparatus comprising:
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means for picking up an image of a medium; means for pointing a prescribed position on the medium; first memory means for storing a first image of the medium picked up by said picking up means; second memory means for storing a second image of the medium picked up by said picking up means, said second image including an image of said pointing means; means for detecting the prescribed position pointed by said pointing means in accordance with the first image stored in said first memory means and the second image stored in said second memory means; means for extracting an item or term placed at the prescribed position of said medium; and means for recognizing respective characters constituting the item or term extracted by said extracting means so as to provide a result of recognition. - View Dependent Claims (18)
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Specification