Image processing method and apparatus using trained dictionary

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United States of America Patent

PATENT NO 9443287
APP PUB NO 20150227819A1
SERIAL NO

14612756

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Abstract

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The image processing method includes providing first dictionaries produced by dictionary learning and second dictionaries corresponding to the first dictionaries, performing, on each first dictionary, a process to approximate the first image by linear combination of elements of the first dictionary so as to produce a linear combination coefficient and thereby acquiring multiple linear combination coefficients, and calculating, for each linear combination coefficient, a ratio between a largest coefficient element and a second-largest coefficient element and selecting a specific linear combination coefficient in which the ratio is largest among the multiple linear combination coefficients. The method further includes selecting, from the multiple second dictionaries, a specific dictionary corresponding to the first dictionary for which the specific linear combination coefficient is produced, and producing the second image by using linear combination of the specific linear combination coefficient and elements of the specific dictionary.

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Patent Owner(s)

  • CANON KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kimura, Yoshinori Utsunomiya, JP 46 372

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