FIELD: physics.
SUBSTANCE: method for extracting an image characteristic, in which an image is divided into a plurality of blocks, each block comprising a plurality of cells; a sparse decomposition of the signal is performed for each cell to obtain a sparse vector corresponding to each cell; and the characteristics of the histogram of the oriented gradient (HOG) of the image are extracted in the frequency region in accordance with the sparse vectors.
EFFECT: improving the accuracy of the image detection when recognizing patterns.
13 cl, 12 dwg, 1 tbl
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RU2697739C2 |
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Authors
Dates
2017-11-09—Published
2015-12-29—Filed