Method and apparatus for image processing using model-based loca

Details Method and apparatus for image processing using model-based loca Method and apparatus for image processing using model-based loca

1995-09-21

1998-10-27

Lee, Richard

Television

Bandwidth reduction system

Data rate reduction

348420, 382253, H04N 730

Patent

active

058284133

ABSTRACT:
The apparatus and method presented use a localized model-based approach to compress video image signals for applications such as video teleconferencing. Preferably, the apparatus and method use three-dimensional vector quantization (3D VQ), recent localized history of the image signals, and a pyramidal hierarchial encoding technique to compress the image signals.

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M. Goldberg et al., "Image Sequence Coding Using Vector Quantization", IEEE Transactions on Communications, vol. COM-34, No. 7, Jul. 1986.
S. Panchanathan et al., "Adaptive Algorithms for Image Coding Using Vector Quantization", Signal Processing: Image Communication, vol. 4, pp. 81-92, 1991.

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