Television – Bandwidth reduction system – Data rate reduction
Patent
1994-11-08
1997-06-10
Britton, Howard W.
Television
Bandwidth reduction system
Data rate reduction
348718, 364723, H04N 750
Patent
active
056381280
ABSTRACT:
A method and apparatus are disclosed for interpolating pixels to obtain subpels for use by a video decompression processor. A prediction area is defined from which subpels are necessary to decompress a portion of a video image. Instead of reading all of the pixels from the prediction area and then processing them together to perform the necessary interpolation, portions of the pixel data are read and simultaneously averaged using in-place computation in order to reduce hardware requirements. Rounding of subpixel results is achieved using the carry input of conventional adders to add a binary "1" to the averaged pixels, which are subsequently truncated to provide the interpolated subpels.
REFERENCES:
patent: 5057916 (1991-10-01), Krause
patent: 5068724 (1991-11-01), Krause
patent: 5091782 (1992-02-01), Krause
patent: 5093720 (1992-03-01), Krause
patent: 5162907 (1992-11-01), Keating et al.
patent: 5235419 (1993-08-01), Krause
patent: 5379356 (1995-01-01), Purcell et al.
patent: 5398079 (1995-03-01), Liu
Document MC68VDP/D, Preliminary Data Sheet entitled "MPEG-2/DCII Video Decompression Processor," .COPYRGT.Motorola Microprocessor and Memory Technologies Group, 1994.
Hoogenboom Chris
Vuong Bao
Britton Howard W.
General Instrument Corporation of Delaware
Lipsitz Barry R.
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