System and method to generate multiprimary signals

Details System and method to generate multiprimary signals System and method to generate multiprimary signals

2006-04-13

2010-11-16

Do, Anh Hong (Department: 2624)

Image analysis

Color image processing

Color correction

C382S162000, C382S305000

Reexamination Certificate

active

07835574

ABSTRACT:
System and method for generating multiprimary signals for use in display devices. A preferred embodiment comprises converting a color signal into an intermediate color space representation of the color signal, converting one of a plurality of multiprimary signals that is a representation of the color signal into an intermediate color space representation of the multiprimary signal, computing a quality measure of the intermediate color space representations of the color signal and the multiprimary signal, repeating the converting of a multiprimary signal and the computing for the remainder of the plurality of multiprimary signals, and selecting a multiprimary signal that optimizes the quality measure. The quality measure can consider requirements such as those minimizing a distance between the color signal and the multiprimary signal, an energy change as well as a phase change between the multiprimary signal and its neighbors, all leading to improved image quality.

REFERENCES:
patent: 5515076 (1996-05-01), Thompson et al.
patent: 7474303 (2009-01-01), Shin et al.
Morovic, J., et al., “The Fundamentals of Gamut Mapping: A Survey,” http://www.colour.org/tc8-03/survey/fund—gm.pdf, downloaded Apr. 7, 2006, 36 pp., Kingsway House, Kingsway, Derby, UK.
Ok, H.W., et al., “Color Processing for Multi-Primary Display Devices,” IEEE International Conference on Image Processing, 2005, pp. 980-983, vol. 3, IEEE, Los Alamitos, CA.

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