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Proceedings Paper

High dynamic range multispectral imaging using liquid crystal tunable filter
Author(s): Boneng Tan; Ningfang Liao; Lixun Tian; Jiajia Wang; Yusheng Lianry
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Paper Abstract

Using conventional camera to capture natural scenes with high dynamic range generally results in saturation as well as underexposure, because of their limited dynamic range. And moreover, the image of conventional RGB camera with RGB color filter lacks color accuracy. We present a promising solution - a high dynamic range multispectral camera placing a Liquid Crystal Tunable Filter (LCTF) between lens and gray level imaging sensor. For each bands, gray level images with different exposures are acquired separately and are combined into a multispectral high dynamic range image afterwards. The high dynamic range multispectral image has higher color accuracy and greater dynamic range than the images of the traditional RGB camera.

Paper Details

Date Published: 10 November 2010
PDF: 6 pages
Proc. SPIE 7850, Optoelectronic Imaging and Multimedia Technology, 78502A (10 November 2010); doi: 10.1117/12.870507
Show Author Affiliations
Boneng Tan, Beijing Institute of Technology (China)
Ningfang Liao, Beijing Institute of Technology (China)
Lixun Tian, Beijing Institute of Technology (China)
Jiajia Wang, Beijing Institute of Technology (China)
Yusheng Lianry, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 7850:
Optoelectronic Imaging and Multimedia Technology
Toru Yoshizawa; Ping Wei; Jesse Zheng; Tsutomu Shimura, Editor(s)

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