Run-length encoding sequence for video signals

Details Run-length encoding sequence for video signals Run-length encoding sequence for video signals

1994-10-26

1996-09-03

Britton, Howard W.

Television

Bandwidth reduction system

Data rate reduction

348409, 382245, H04N 726

Patent

active

055528325

ABSTRACT:
Regions of a video frame are classified into different classes of regions (e.g., inter encoded blocks, intra encoded blocks, and skip blocks). The classes of regions are then run-length encoded using an encoding sequence that is a function of the content of the video frame. The run-length encoded signals are used to generate an encoded bit stream for the video frame. In preferred embodiments, the run-length encoding sequence either is selected from a set of possible sequences or is generated based on a selected location within the video frame. The selected sequence or location is identified explicitly in the encoded bit stream and used by a decoder to select/generate the run-length decoding sequence used to decode the run-length encoded signals in the encoded bit stream that correspond to the classes of regions in the video frame.

REFERENCES:
patent: 4821119 (1989-04-01), Gharavi
patent: 5046071 (1991-09-01), Tanoi
patent: 5164828 (1992-11-01), Tahara et al.
patent: 5267334 (1993-11-01), Normille et al.
patent: 5299019 (1994-03-01), Pack et al.
patent: 5313298 (1994-05-01), Meeker
patent: 5333012 (1994-07-01), Singhal et al.
patent: 5365271 (1994-11-01), Asano

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