IMAGE CODING METHOD AND DEVICE, IMAGE DECODER, IMAGE ENCODING DECODING DEVICE, INTRA-CODING CONTROL METHOD AND RATIO IMAGE COMMUNICATION TERMINAL EQUIPMENT CONDUCTING INTRA-CODING CONTROL PROCESSING

摘要

PROBLEM TO BE SOLVED: To reduce a deteriorated image recovery time in a method using a cycle refresh. ;SOLUTION: An important are discrimination section 105 discriminates whether or not a macro block is included in an important area. The macro block included in the important area is stored in an important are memory 106 as an important area till the macro block is refreshed for a prescribed number of times or over. The macro block stored in the important area memory is used for an object of intra-refresh. Thus, even in the case that the image quality of the macro block included in the important area is deteriorated, the deterioration is recovered in a short time and deterioration of the image quality of a block in a preceding important area no longer remains.;COPYRIGHT: (C)1998,JPO