Surface normal information producing apparatus, image capturing apparatus, surface normal information producing method, and storage medium storing surface normal information producing program
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United States of America Patent
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Apr 18, 2017
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app pub date -
Jan 20, 2016
filing date -
Jan 20, 2015
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Abstract
The surface normal information producing apparatus acquires, as captured images of an object, multiple first images in which light source positions relative to the object are mutually different and three or more second images in which polarization states are mutually different, and performs area division of a surface of the object depending on at least one of luminance information that changes corresponding to the light source positions acquired from the first images and polarization information acquired from the second images. The apparatus selects, for each divided area obtained by the area division, information to be used in production of surface normal information from information relating to change of the luminance information corresponding to the light source positions and the polarization information to produce the surface normal information.
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