Television – Bandwidth reduction system – Data rate reduction
Patent
1992-10-08
1994-10-04
Britton, Howard W.
Television
Bandwidth reduction system
Data rate reduction
348386, 348387, H04N 7137
Patent
active
053530616
ABSTRACT:
A frame-differencing based method for coding and decoding color video data suitable for real-time, software-only based decompression and playback in low-end personal computers wherein the computational demands required of a computer microprocessor to implement the method are readily met by microprocessors such as an Intel 80386SX microprocessor running at 16 Mhz. Frame-to-frame differences are detected in a manner analogous to human perception of luminance data, rather than by the differences in the actual numerical video data. This permits greater compression of data without added computational complexity to the decompression process. Image analysis techniques are employed to ameliorate the appearance of the video. A lossless coding method that unifies two separate compressed data entities is used to obtain a greater amount of compression and simultaneously to reduce the computational complexity of the decompression process.
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Pietras Mark A.
Rodriguez Arturo A.
Saenz Andres J.
Britton Howard W.
Dillon Andrew J.
International Business Machines - Corporation
O'Malley Paul W.
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