US 7,321,622 B2 | ||
Method and apparatus for transforming moving picture coding system | ||
Minoru Etoh, Kawasaki (Japan); Tsutomu Uenoyama, Kawasaki (Japan); Osamu Iwasaki, Tokyo (Japan); and Daisaku Komiya, Tokyo (Japan) | ||
Assigned to Matsushita Electric Industrial Co., Ltd., Osaka (Japan) | ||
Filed on Jun. 09, 2003, as Appl. No. 10/456,676. | ||
Application 10/456676 is a continuation of application No. 09/511488, filed on Feb. 23, 2000, granted, now 6,625,211. | ||
Claims priority of application No. 11-047613 (JP), filed on Feb. 25, 1999. | ||
Prior Publication US 2003/0206588 A1, Nov. 06, 2003 | ||
Int. Cl. H04B 1/66 (2006.01); H04N 7/12 (2006.01); H04N 11/02 (2006.01); H04N 11/04 (2006.01) |
U.S. Cl. 375—240 | 8 Claims |
1. A method for transforming a first data sequence, generated by a first moving picture coding system having an intra-frame
coding mode and an inter-frame coding mode, to a second data sequence, generated by a second moving picture coding system
having an intra-frame coding mode and an inter-frame coding mode, the method comprising:
prereading a coding mode of a successive frame succeeding a present frame from the first data sequence;
judging whether a preread coding mode of the successive frame is the intra-frame coding mode; and
determining whether to code the present frame by the second moving picture coding system corresponding to a generated code
amount of the second data sequence when the coding mode of the successive frame is the intra-frame coding mode,
wherein data coded by the intra-frame coding mode existing in the first data sequence is preferentially transformed to the
second data sequence.
|