Threshold of detectability of image-intensifier optically-coupled CCD (I<sup>2</sup>-CCD) at low light level

Yudan Li; Zebin Wei; Yisong Zou; Shanfeng Hou

doi:10.1117/12.141995

1 April 1993 Threshold of detectability of image-intensifier optically-coupled CCD (I²-CCD) at low light level

Yudan Li, Zebin Wei, Yisong Zou, Shanfeng Hou

Proceedings Volume 1982, Photoelectronic Detection and Imaging: Technology and Applications '93; (1993) https://doi.org/10.1117/12.141995
Event: Photoelectronic Detection and Imaging: Technology and Applications '93, 1993, Beijing, China

Abstract

The threshold detectivity of I²-CCD is studied based on the new concept of TV signal modulation transfer (STF) and noise modulation transfer function (NTF). The image detective ability equation of I²-CCD is established using the STF and NTF, as well as the theory of image threshold detectability. The detectability of I²-CCD cameras under several different conditions are calculated according to the equation. The theoretical calculation results fit well the experiment results. After analyzing the theoretical results several means to improve detective ability of I²-CCD are available.

Citation Download Citation

Yudan Li, Zebin Wei, Yisong Zou, and Shanfeng Hou "Threshold of detectability of image-intensifier optically-coupled CCD (I²-CCD) at low light level", Proc. SPIE 1982, Photoelectronic Detection and Imaging: Technology and Applications '93, (1 April 1993); https://doi.org/10.1117/12.141995

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