| US 7,486,734 B2 | ||
| Decoding and coding method of moving image signal, and decoding and coding apparatus of moving image signal using the same | ||
| Yutaka Machida, Yokohama (Japan) | ||
| Assigned to Panasonic Corporation, Osaka (Japan) | ||
| Filed on Mar. 30, 1998, as Appl. No. 9/50,808. | ||
| Claims priority of application No. 9-094478 (JP), filed on Mar. 31, 1997. | ||
| Prior Publication US 2001/0055338 A1, Dec. 27, 2001 | ||
| Int. Cl. H04N 7/12 (2006.01) | ||
| U.S. Cl. 375—240.25 [375/240.01; 375/240.12; 375/240.16] | 13 Claims |
| 1. A method of decoding block N+1 in frame N+1 of successive frames of a predictively coded image signal, said method comprising
the steps of:
a) evaluating block N of frame N and block N-M of frame N-M of said signal, wherein blocks N-M, N and N+1 are in corresponding
locations of frames N-M, N and N+1, respectively, M=>1;
b) identifying an error in one of block N and block N-M;
c) using the other of block N and block N-M to decode block N+1 based on steps a) and b).
|