Method and apparatus for scalable compression and decompression

Details Method and apparatus for scalable compression and decompression Method and apparatus for scalable compression and decompression

1992-12-22

1994-11-08

Chin, Tommy P.

Television

Bandwidth reduction system

Data rate reduction

348390, 348409, H04N 7137

Patent

active

053631390

ABSTRACT:
In a method and apparatus for scalably encoding in real time a sequence of digital video frames, a target digital processor class to be used for decoding the sequence is selected. A stillperiod value is selected in accordance with the selected target digital processor class. Every Nth frame of the sequence is then encoded as a still frame, and all other frames are encoded using interframe difference values, wherein N is equal to the stillperiod value.

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patent: 4922508 (1990-05-01), Moriya
patent: 4930013 (1990-05-01), Leaning
patent: 4942465 (1990-07-01), Ohta
patent: 5130701 (1992-07-01), White et al.
patent: 5134477 (1992-07-01), Knauer et al.
patent: 5136663 (1992-08-01), Nishio

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