Title:
ディスプレイシステム
Document Type and Number:
Japanese Patent JP4587838
Kind Code:
B2
Abstract:
A method for extending bit-depth of display systems. The method includes the steps of measuring the static display noise of a display device (14), using the display noise to create pseudo-random noise (12) and subtracting the pseudo-random noise (12) from a contone image (10). After the noise-compensated image data is quantized and displayed, the noise in the display device (14) will substantially convert the noise-compensated image data back to contone image data with few or no contouring artifacts. Other embodiments include using the inherent noise of the human visual system (22) instead of the static display noise, or both. Specific adjustments can be made to the noise of the human visual system (22) for color displays.
Inventors:
Scott Dali
Application Number:
JP2005045350A
Publication Date:
November 24, 2010
Filing Date:
February 22, 2005
Export Citation:
Assignee:
Sharp Corporation
International Classes:
G06T3/40; G09G5/02; G06T5/00; G09G3/20; G09G5/00; G09G5/36; H04N1/40; H04N1/46; H04N5/21; H04N5/66; H04N9/00; H04N9/64
Domestic Patent References:
| JP3933669B2 | ||||
| JP7160217A | ||||
| JP9244597A | ||||
| JP9018723A | ||||
| JP7121136A | ||||
| JP6131164A | ||||
| JP7295538A |
Attorney, Agent or Firm:
Akinaka Takano