VIDEO DATA CODING AND DECODING METHOD, VIDEO DATA CODER, VIDEO DATA DECODER, VIDEO DATA CODING PROGRAM, VIDEO DATA DECORDING PROGRAM, AND RECORDING MEDIUM WITH THE PROGRAMS RECORDED

摘要

PROBLEM TO BE SOLVED: To reduce the effect of an error by limiting the range of the error when the error takes place when decoding the video data.;SOLUTION: A coding section 12 codes each image region unit of a bit stream received by a stream input section 11 according to the control of a coding control section 16, stores picture data being a coding result to a first buffer 13, and stores a code amount and attached information by each image region unit to a second buffer 14 as the user data. A stream output section 15 outputs the picture data stored in the first buffer 13 and the user data stored in the second buffer 14 as a coded bit stream. When any error is detected at decoding of the coded bit stream, a position to be decoded next is decided according to the user data.;COPYRIGHT: (C)2004,JPO&NCIPI