Method and system for compressing a video signal using nonlinear

Details Method and system for compressing a video signal using nonlinear Method and system for compressing a video signal using nonlinear

1995-06-27

1998-06-16

Boudreau, Leo

Image analysis

Image compression or coding

382240, 382166, 382239, 348390, G06K 900, G06K 936, H04N 712

Patent

active

057684278

ABSTRACT:
A video signal is converted into a coefficient signal of block coefficient signals for each frame in a video image. Each of the block coefficient signals represents the pixels in a pixel map block (420) with the coefficients in a hybrid polynomial. The hybrid polynomial contains discrete cosine terms, a constant term separated from the discrete cosine terms, and polynomial terms separated from the discrete cosine terms. Coefficient signals for selected frames only are transmitted to a receiving computer (130). The coefficient signals for the selected frames are converted to decompressed pixel map signals and the pixel map signals for unselected frames are interpolated using nonlinear interpolation. The decompressed pixel map signals and interpolated pixel map signals are ordered into an original frame sequence to produce a decompressed video signal.

REFERENCES:
patent: 5122873 (1992-06-01), Golin
patent: 5510838 (1996-04-01), Yomdin et al.
patent: 5588069 (1996-12-01), Katayama et al.

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