Television – Bandwidth reduction system – Data rate reduction
Patent
1995-02-16
1997-04-15
Au, Amelia
Television
Bandwidth reduction system
Data rate reduction
348420, 348616, H04N 768
Patent
active
056214677
ABSTRACT:
A video decompression system includes block error concealment means for generating substitute data for lost blocks of pixel data. An interpolator generates both spatially and temporally interpolated or predicted blocks of data for concealing a lost block. Pixel data in the respective blocks of spatially and interpolated data are transformed to coefficients representing frequency spectra. A substitute block of coefficients is assembled from coefficients from both the transformed blocks, according to a predetermined criteria. The substitute block is transformed back to the spatial domain for substitution of lost pixel values.
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Chien Max
Kwok Wilson
Sun Huifang
Au Amelia
Herrmann Eric P.
Kurdyla Ronald H.
Thomson Multimedia S.A.
Tripoli Joseph S.
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