Spatial/frequency hybrid video coding facilitating the derivativ

Details Spatial/frequency hybrid video coding facilitating the derivativ Spatial/frequency hybrid video coding facilitating the derivativ

1992-07-02

1993-10-12

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358135, 358136, H04N 7133, H04N 7137

Patent

active

052530566

ABSTRACT:
An adaptive technique for video encoding and decoding which facilitates the transmission, reception, storage, or retrieval of a scalable video signal. The technique allows this scaling to be performed in both the spatial and frequency domains. In a specific embodiment, video encoding is adaptively performed based upon a selection from among a multiplicity of compatible spatial-domain predictions from previously decoded images, and a selection of compatible predictions obtained from up-sampling decoded lower resolution images. The decoded lower resolution images correspond to a current temporal reference, and at least one of these lower resolution images is encoded in more than one frequency domain scales. In yet another embodiment, one lower resolution signal is encoded (without reference to any other low resolution signal) by employing the MPEG-1 standard, with a modified partitioning of the resultant bitstream into two or more frequency scale bitstreams. The decoded images from these bitstreams are employed in the spatial prediction of a higher resolution layers.

REFERENCES:
patent: 5001561 (1991-03-01), Haskell
International Standards Organization Committee Draft 11172-2, "Coding of Moving Pictures and Associated Audio for Digital Storage Media at up to about 1.5 Mbit/s," Nov. 1991.
"Video Coding Using the MPEG-1 Compression Standard," A. Puri, Proceedings of the Society for Information Display 92, May 1992, Boston.

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