Method and arrangement for coding and decoding a video data stre

Details Method and arrangement for coding and decoding a video data stre Method and arrangement for coding and decoding a video data stre

1996-07-08

1998-05-12

Britton, Howard W.

Television

Bandwidth reduction system

Data rate reduction

348408, H04N 750

Patent

active

057513570

ABSTRACT:
A run length coding (RLC) is implemented in a coder/decoder unit (CD) in a forward path (VP) and a run length decoding (RLD) is implemented at the beginning of reconstruction in a reconstruction path for an internal reconstruction of the video data stream. As a result an added outlay seems to occur as compared to known methods. However, an interleaving of tasks that were successively implemented in previous methods is thereby enabled. A substantial reduction of the overall outlay compared to known procedures is achieved by the interleaving of the scan method (SV), quantizing (Q) and run length coding (RLC), run length decoding (RLD), inverse quantizing (IQ) and the inverse scan method (ISV).

REFERENCES:
patent: 4541012 (1985-09-01), Tescher
patent: 5196933 (1993-03-01), Henot
patent: 5461422 (1995-10-01), Hseih
Fernseh-Und Kino-Technik, No. 3, (1994), MPEG-2-Bildeodierung fur das digitale Fernsehen, J. De Lameillieure et al, pp. 99-107.
International Standard ISO/IEC 11172-2, Coding of Moving Pictures and Associated Audio, ISO/MPEG, 1993.
Draft International Standard ISO/IEC 13818-2 Generic coding of Moving Pictures and Associated Audio, 25 Mar. 1994.
ITU-T Rec. H. 261.
ITU-T Rec. H. 263.
M. Bierling, Displacement Estimation by Hierarchial Block Matching, 3rd SPIE Symp. on Visual Communication, Cambridge, MA. Nov. 1988.

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