Research of TV system's view range evaluation based on human eyes' contrast threshold

Fengmei Cao; Weiqi Jin; Su Qiu

doi:10.1117/12.790666

3 March 2008 Research of TV system's view range evaluation based on human eyes' contrast threshold

Fengmei Cao, Weiqi Jin, Su Qiu

Proceedings Volume 6621, International Symposium on Photoelectronic Detection and Imaging 2007: Photoelectronic Imaging and Detection; 66210M (2008) https://doi.org/10.1117/12.790666
Event: International Symposium on Photoelectronic Detection and Imaging: Technology and Applications 2007, 2007, Beijing, China

Abstract

Johnson criteria not only compartmentalizes photoelectronic imaging systems' detecting level, but also establishes a relation between imaging systems' detecting level of different target and equivalent stripes with 100% contrast. Base on this criteria we can calculate photoelectronic imaging systems' view range. Blackwell's classic experiments provide basic data of human eyes' contrast detecting. Base on this theory, we get restrict relation between human eyes' contrast threshold and human eyes' resolving power. Base on the two theory, this paper has thoroughly studied the imaging and display parts of TV systems. At the same time, TV systems' view range problem has been discussed in this paper using Johnson criteria and human eyes' contrast threshold curve, combined with the objects' size, the contrast between the objects and the backgrounds, the atmosphere's transfer characteristic, apparent contrast's change. This paper gives a method to calculate TV systems' view range under different detecting and recognizing probabilities. Base on this method and an actual TV system's characteristics, the paper has calculated the view range of representative objects under different detecting and recognizing probabilities.

Citation Download Citation

Fengmei Cao, Weiqi Jin, and Su Qiu "Research of TV system's view range evaluation based on human eyes' contrast threshold", Proc. SPIE 6621, International Symposium on Photoelectronic Detection and Imaging 2007: Photoelectronic Imaging and Detection, 66210M (3 March 2008); https://doi.org/10.1117/12.790666

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KEYWORDS

Imaging systems

Target detection

Spectral resolution

Target recognition

Displays

Sensors

Visualization

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