Bit-depth extension with models of equivalent input visual...

Details Bit-depth extension with models of equivalent input visual... Bit-depth extension with models of equivalent input visual...

2002-02-01

2008-11-11

Tran, Trang U (Department: 2622)

Television

Image signal processing circuitry specific to television

Noise or undesired signal reduction

C348S607000, C348S615000, C348S617000, C348S618000

Reexamination Certificate

active

07450181

ABSTRACT:
A method for extending bit-depth of display systems. The method includes creating pseudo-random noise from human visual system noise. When applied to the image data, the noise causes spatiotemporal dithering. The pseudo-random noise is combined with image data, producing noise-compensated image data. The noise-compensated image data is them quantized.

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English language Abstract of Japan, Publication No. 0918507, Publication Date: Jul. 15, 1997, Applicant: Texas Instruments Inc.

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