| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To efficiently reduce the amount of data of an image file of a distance image, and to convert distance values Xi, Yi, Zi by a quantization system which a photographer desires. <P>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 the distance values from the standard images and the reference images. A distance image conversion section 32 performs quantization concerning depth information being 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. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
