| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To efficiently reduce a data amount of an image file of a distance image. <P>SOLUTION: Imaging units 21A, 21B obtain a standard image and a reference image for calculating the distance value, including depth information and position information representing a three-dimensional shape of a subject by imaging the subject. A distance image generation unit 31 calculates the distance value, from the standard image and the reference image. A distance image conversion unit 32 quantizes depth information within a predetermined range by a quantization number larger than that of depth information out of the predetermined range; a distance image encoding unit 33 encodes a distance image in which a distance value, including quantized position information, is defined as a pixel value for each pixel; and a compression/expansion processing unit 24 generates an image file of the encoded distance image. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
