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US 7,003,156 B1Granted
Object detection method and a video data retrieval method
AssigneeKabushiki Kaisha Toshiba
InventorsKoji Yamamoto, Osamu Hori, Toshimitsu Kaneko, Takeshi Mita
Life of this patent
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Abstract
A video data description method. Both feature data of predetermined object and feature data of background area are extracted from a frame of input video. The feature data of predetermined object and the feature data of background area are described as a descriptor of the frame.
Claims10
A video data description method, comprising:
- extracting feature data of a predetermined object and feature data of a background area from a frame of in input video;
- describing the feature data of the predetermined object and the feature data of the background area as a descriptor of the frame, the feature data of the predetermined object including an affine transformation coefficient of an area of the predetermined object, wherein the affine transformation coefficient is estimated based on movement of the predetermined object, which is approximated by an affine transformation model;
- and
- attaching the descriptor to the frame.
1 more element
A computer readable memory containing computer readable instructions, comprising:
- instruction means for causing a computer to extract feature data of a predetermined object and feature data of a background area from a frame of an input video;
- instruction means for causing a computer to describe the feature data of the predetermined object and the feature data of the background area as a descriptor of the frame, the feature data of the predetermined object including an affine transformation coefficient of an area of the predetermined object, wherein the affine transformation coefficient is estimated based on movement of the predetermined object, which is approximated by an affine transformation model;
- and
- instruction means for causing a computer to attach the descriptor to the frame.
1 more element
Dependencies are inferred from the claim text.