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Article: Japanese Inventors Develop Light Source Estimation Apparatus
- Article from:
- US Fed News Service, Including US State News
- Article date:
- October 16, 2008
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ALEXANDRIA, Va., Oct. 16 -- Koichiro Ishigami of Kanagawa, Japan, and Naoya Katoh of Chiba, Japan, have developed a light source estimating method.
According to the abstract released by the U.S. Patent & Trademark Office: "A light source estimation method of this invention estimates from the sensor response the color characteristics of an unknown light source of an image-pickup scene, in order to improve white balance adjustment and other aspects of the quality of color reproduction; a projection conversion portion projects sensor response values into an image distribution 9 in an evaluation space not dependent on the image-pickup light source using parameters obtained by operations ...