Motion adaptive scan-rate conversion using directional edge inte

Television – Image signal processing circuitry specific to television – Combined noise reduction and transition sharpening

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348625, 348627, 348446, H04N 701

Patent

active

055194516

ABSTRACT:
A method for processing video data to produce a progressively scanned signal from an input of conventional interlaced video. The data is received at a processor (1), used to determine a motion signal (26) over time between field of the data. The motion signal is filtered to reduce errors caused by noise-corrupted video sources and then further filtered to spread out the determined motion signal. Edge information (30) is located and combined with the motion signal to produce an integrated progressive-scan signal (36) for display on a video display device, producing images with sharper edges and motion signals which have a lower susceptibility to noise.

REFERENCES:
patent: 5051826 (1991-09-01), Ishii et al.
patent: 5387947 (1995-02-01), Shin
Doyle, Interlaced to Sequential Conversion for DETV Applications, 29 Feb.-Mar. 1988, pp. 423-427.

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