Time-recursive deinterlace processing for television-type signal

Details Time-recursive deinterlace processing for television-type signal Time-recursive deinterlace processing for television-type signal

1990-08-31

1992-07-28

Kostak, Victor R.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

358 11, 358105, H04N 701, H04N 1120

Patent

active

051344807

ABSTRACT:
Deinterlacing systems and methods useful with television and other interlaced data signals derive values for pixels on missing lines using best matching values for blocks of pixels through time-recursive comparison of current pixels block values with such values for prior frames of data and also with later frames. Noise propagation is attenuated by mixing of current interpolated pixel data and memory size efficiency is achieved by comparisons based on blocks of pixels, with the block size adjustable for data accuracy. Use of chrominance signal comparisons and reduced data rate coding techniques provide added capabilities to the deinterlacing systems and methods.

REFERENCES:
patent: 4901145 (1990-02-01), Harradine et al.
patent: 4937667 (1990-06-01), Choquet et al.
patent: 4982285 (1991-01-01), Sugiyama
patent: 4985768 (1991-01-01), Sugiyama
patent: 5010401 (1991-04-01), Murakami et al.

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