| US 7,453,941 B1 | ||
| Moving pictures encoding method and apparatus for detecting a scene change between fields of an interlaced image | ||
| Akihiro Yamori, Kawasaki (Japan); Takashi Hamano, Kawasaki (Japan); Kiyoshi Sakai, Kawasaki (Japan); and Kouji Yamada, Kawasaki (Japan) | ||
| Assigned to Fujitsu Limited, Kawasaki (Japan) | ||
| Filed on Mar. 16, 2000, as Appl. No. 9/526,619. | ||
| Claims priority of application No. 11-074497 (JP), filed on Mar. 18, 1999. | ||
| Int. Cl. H04N 7/12 (2006.01) | ||
| U.S. Cl. 375—240.15 | 6 Claims |
| 1. A moving pictures encoding method for encoding a picture frame of an input signal by predicting from both forward and backward
picture frames, the picture frame having top and bottom fields, which respectively include odd numbers and even numbers of
pixel scanning lines of the picture frame, the method comprising the steps of:
first predicting in a macro-block unit composed of (n×n) pixels, the top field of the picture frame from either one of top
and bottom fields of only the forward picture frame, and the bottom field of the picture frame from either one of top and
bottom fields of only the backward picture frame;
generating a predictive picture according to the prediction; and
encoding the picture frame of the input signal by using the generated predictive picture.
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