Method and apparatus for encoding moving picture signals and rec

Details Method and apparatus for encoding moving picture signals and rec Method and apparatus for encoding moving picture signals and rec

1997-04-07

1998-05-26

Tran, Thai

Television

Special applications

Film, disc or card scanning

348384, 348405, 348414, 386 46, 386109, 386111, 386131, H04N 5253, H04N 911, H04N 947, H04N 336

Patent

active

057574219

ABSTRACT:
A method and apparatus for encoding moving picture signals. A plurality of encoding picture groups, each consisting of a pre-set number of encoding pictures freed of redundant pictures from a plurality of original pictures represented by the input moving picture signals, are formed, and the number of original pictures used for forming the encoding picture groups and the group-based target bit amount are calculated. The moving picture signals of the encoding pictures are encoded from one picture group to another based upon the target bit amount. Even if the encoding picture rate is changed from one picture group to another, the target bit amount can be adaptively controlled with these changes in the encoding picture rate. Consequently, there is no risk of the output bit rate significantly surpassing the target value. In addition, there is no risk of the total bit amount in the bit stream exceeding the target amount to render it impossible to record the bit stream on a desired moving picture signal recording medium.

REFERENCES:
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patent: 5419516 (1995-05-01), Casavant et al.
patent: 5452011 (1995-09-01), Martin et al.
patent: 5461420 (1995-10-01), Yonemitsu et al.
patent: 5475502 (1995-12-01), Lee et al.
patent: 5521713 (1996-05-01), Oikawa
patent: 5563660 (1996-10-01), Tsukagoshi

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