Modulation transfer function evaluation of charge-coupled-device camera system based on liquid-crystal display random targets

Xusheng Zhang; Dingguo Sha

doi:10.1117/12.570923

10 February 2005 Modulation transfer function evaluation of charge-coupled-device camera system based on liquid-crystal display random targets

Xusheng Zhang, Dingguo Sha

Author Affiliations +

Proceedings Volume 5638, Optical Design and Testing II; (2005) https://doi.org/10.1117/12.570923
Event: Photonics Asia, 2004, Beijing, China

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.

Citation Download Citation

Xusheng Zhang and Dingguo Sha "Modulation transfer function evaluation of charge-coupled-device camera system based on liquid-crystal display random targets", Proc. SPIE 5638, Optical Design and Testing II, (10 February 2005); https://doi.org/10.1117/12.570923

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