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    • 10. 发明专利
    • SEPARATION METHOD OF DIFFUSED AND MIRROR REFLECTED COMPONENT
    • JP2002024818A
    • 2002-01-25
    • JP2000211131
    • 2000-07-12
    • NAT INST OF ADV IND & TECHNOL
    • UMEYAMA SHINJI
    • G03B41/04G06T1/00G06T5/00
    • PROBLEM TO BE SOLVED: To separate both components which are nearly perfect even in the positional relation of a general light source or the like, by separating diffused/ mirror reflected components using a property that mutual probabilistic independence between the diffused/mirror reflected components is high. SOLUTION: In this separation method of the diffused and mirror reflected components, plural images of an observation object, having intensities of various mirror reflections are observed by rotating a polarizing filter, and a part including many mirror reflected components is selected from among the plural observed images, and singular value decomposition is executed relative to a rectangular region aggregation in the obtained image aggregation. Components corresponding to the maximum singular value and the next largest singular value are selected, and a transformation matrix for transforming the rectangular image aggregation, to which the singular value decomposition is given into the diffused/reflected components is determined, and the transformation matrix is applied to the overall image, to thereby decompose the diffused/mirror reflected components of the overall image.