| 摘要 |
<p>A signal coding apparatus and method, a signal recording medium and a signal transmitting method is disclosed in which a motion-picture image signal supplied at an input terminal is delivered to a motion vector detection/motion-prediction residual calculator, intra-image motion-prediction residual calculator, and to an frame/field DCT coding type judging means. In the frame/field DCT type judging means, the type of DCT coding is judged for the input MB (macro block). Based on the DCT coding type, the intra-image motion-prediction residual is calculated by the intra-image motion-prediction residual calculator. The intra-image motion-prediction residual thus obtained and input MB motion-prediction residual as compared with each other by the INTRA/INTER judging means to judge whether the input MB is to be intra- or inter-coded. The intra- or inter-coding is done in the decided coding mode. <IMAGE></p> |
