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US 6,611,628 B1Granted
Method of image feature coding and method of image search
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsShunichi Sekiguchi, Yoshihisa Yamada, James Chow, Kohtaro Asai
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Abstract
A feature coding unit extracts and encodes a feature of a video signal so as to generate a feature stream. A feature identifying unit checks a decoded feature obtained as a result of decoding the feature stream against a search key from a user for a match so that a video content requested by the user is retrieved.
Claims7
An image feature coding method comprising the step of:
- extracting segments of image areas from an image frame;
- attaching a segment number to each of the extracted segments;
- assigning a representative color to each of the extracted segments;
- calculating a size of a relative area of each of the segments with respect to the image frame;
- coding the representative color and the relative area to produce a feature of the image;
- and
- generating a feature stream corresponding to the image having the feature encoded therein.
4 more elements
An image feature coding method comprising the step of:
- extracting segments of image areas from an image frame;
- attaching a segment number to each of the extracted segments;
- assigning a representative color to each of the extracted segments;
- computing a relative area of each of the segments with respect to the image frame;
- coding the representative color and the relative area to produce a feature of the image;
- and
- generating a feature stream corresponding to the image having the feature encoded therein, wherein said feature stream is used to search said image frame via criteria generated by an external input.
4 more elements
Dependencies are inferred from the claim text.