CODE SEQUENCE CONVERTING APPARATUS, IMAGE EDIT SYSTEM, CAMERA SYSTEM, AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a code sequence converting apparatus capable of discriminating a kind of an image on the basis of a motion amount of an image, a sub band code amount distribution, and a compression rate so as to attain re-quantization and encoding a moving picture while maintaining high image quality.

SOLUTION: A parsing means 12 analyzes a syntax of a code sequence resulting from applying compression encoding to moving picture data and a quantization means 29 selects packets to apply re-quantization to them. Then a code sequence generating means 13 generates a new code sequence including the remaining packets. The quantization means 29 applies control to the packets according to one or more quantization tables selected from a quantization table group 27 by a quantization table selection means 28. The quantization table is selected by each index value respectively decided depending on each value of the sub band code quantity distribution and a designated image compression rate.

COPYRIGHT: (C)2004,JPO&NCIPI