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Proceedings Paper

Modulation transfer function evaluation of charge-coupled-device camera system based on liquid-crystal display random targets
Author(s): Xusheng Zhang; Dingguo Sha
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Paper Abstract

In order to overcome the sampling-scene phase effect in the modulation transfer function (MTF) measurement of sampled imaging systems, a method using a pseudorandom number generating algorithm to generate several random targets displayed on a liquid-crystal-display (LCD) graph generator to evaluate the MTF of charge-coupled device (CCD) in visible region is discussed. The major advantages of this technique are that it has been demonstrated as a shift-invariant method without requiring mechanical scanning, and it is easy to generate a large number of random targets on LCD by computer program to get the average result and reduce measurement noise. By experiments, this technique has got a reliable MTF result and agrees with the usual methods. This method is expected to be used to develop a real-time video MTF testing software system.

Paper Details

Date Published: 10 February 2005
PDF: 8 pages
Proc. SPIE 5638, Optical Design and Testing II, (10 February 2005); doi: 10.1117/12.570923
Show Author Affiliations
Xusheng Zhang, Beijing Institute of Technology (China)
Dingguo Sha, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 5638:
Optical Design and Testing II
Yongtian Wang; Zhicheng Weng; Shenghua Ye; Jose M. Sasian, Editor(s)

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