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19 February 2015 The investigation of automatic exposure under extreme light
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Proceedings Volume 9449, The International Conference on Photonics and Optical Engineering (icPOE 2014); 94491W (2015) https://doi.org/10.1117/12.2074827
Event: The International Conference on Photonics and Optical Engineering and the Annual West China Photonics Conference (icPOE 2014), 2014, Xi'an, China
Abstract
For imaging equipments, exposure is one of the crucial factors for evaluating the quality of imaging. The correct method of exposure is the key to obtain high-quality image. Traditional calculation of exposure is slow in adaptation under extreme environment. In addition, the object of imaging under extreme light usually cannot achieve suitable gray level. To obtain accurate and effective control of automatic exposure under back light and front light environment, this article divides shoot scenes into different regions, applying the method of fuzzy logic to give each region a different weight number, and finally allowing it to correctly carry out automatic exposure. This method can manage imaging under special light conditions without being affected by the position of the main object. Experiments show that this method can effectively control automatic exposure under all kinds of environments.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Zefeng Wang, Lei Yang, Jijang Huang, Zhi Zhang, Qingsheng Xie, Yaohong Chen, Jiawen Liao, Zhaohui Zhang, Haifeng Zhang, and Kaisheng Zhang "The investigation of automatic exposure under extreme light", Proc. SPIE 9449, The International Conference on Photonics and Optical Engineering (icPOE 2014), 94491W (19 February 2015); https://doi.org/10.1117/12.2074827
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