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Proceedings Paper

Study on enhancing dynamic range of CCD imaging based on digital micro-mirror device
Author(s): Wang Zhou
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Paper Abstract

DMD used as SLM modulation area array CCD design is proposed in the paper. It can Solve a problem in exposing high-contrast scenes by ordinary CCD camera, with images appearing over-exposure or under exposure, bringing a loss of the details of the photo. The method adoptes a forecast imaging scene, CCD is purposely designed by way of more exposure regions and exposure times. Through modulation function of DMD micro-mirror, CCD is exposed with sub-region and time-sharing, at the same time a purposely designed structure of image data enhances the area CCD dynamic range. Experiments shows: This method not only improves visible quality of an image and clear details in the backlighting or highlight, but also enhances the dynamic range of image data. The high-quality image and high dynamic range data are real-time captured, the "fused" software is no longer required.

Paper Details

Date Published: 18 May 2009
PDF: 5 pages
Proc. SPIE 7284, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems, 72840S (18 May 2009); doi: 10.1117/12.832087
Show Author Affiliations
Wang Zhou, Soochow Univ. (China)


Published in SPIE Proceedings Vol. 7284:
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems
Sen Han; Masaomi Kameyama; Xiangang Luo, Editor(s)

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