Optimal Design of Mosaic Color Filters for the Improvement of Image Quality in Electronic Endoscopes

Norimichi Tsumura, Takuya Tanaka, Hideaki Haneishi, and Yoichi Miyake

Department of Information and Image Sciences, Chiba University 1-33, Yayoi-cho, Inage-ku, Chiba 263-8522, Japan

Optics Communications 145 pp.27-32(1998).

Abstract
A new technique to design mosaic color filters on a CCD area sensor is propose to improve the quality of electronic endoscope image. Images obtained from the CCD sensor have an interpolation error. The error causes degradation of spatial information in the reproduced image, In this paper, we analyzed spectral distribution of the reflectance spectra in the electronic endocarp image, and the distribution was used to optimize the spectra transmittance of the color filters for improvement of image quality. The simulated annealing technique was utilized for optimization.

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