摘要 |
PROBLEM TO BE SOLVED: To efficiently reduce the amount of data of an image file of a distance image. SOLUTION: Imaging sections 21A, 21B acquire standard images and reference images for calculating distance values including depth information and positional information representing a three-dimensional shape of a subject, by imaging the subject. A distance image formation section 31 calculates distance values from the standard images and the reference images. A distance image conversion section 32 performs quantization concerning depth information within a predetermined range by quantization numbers larger than those for depth information outside the predetermined range, a distance image encoding section 33 encodes a distance image having distance values including quantized positional information as the pixel value of each pixel, and a compression/extension processing section 24 creates an image file of the encoded distance image. COPYRIGHT: (C)2009,JPO&INPIT
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