| 电子变倍对直视型光电成像系统效能的信道宽度评价方法研究 |
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| 引用本文： | 卢萍,金伟其,郭宏,王岭雪.电子变倍对直视型光电成像系统效能的信道宽度评价方法研究[J].北京理工大学学报,2006,26(8):716-720. |
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| 作者姓名： | 卢萍 金伟其 郭宏 王岭雪 |
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| 作者单位： | 北京理工大学,信息科学技术学院光电工程系,北京,100081;北京理工大学,信息科学技术学院光电工程系,北京,100081;北京理工大学,信息科学技术学院光电工程系,北京,100081;北京理工大学,信息科学技术学院光电工程系,北京,100081 |
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| 摘 要： | 根据信道宽度理论,给出了一种描述电子变倍在直视型光电成像系统中效能的方法,表明电子变倍对于光电成像系统的效能存在最佳值mm,适当的电子变倍可获得更好的成像视觉效果,过大或过小的电子变倍均可能降低视觉效果. 给出了在信道宽度最佳条件下最佳电子变倍值的定量确定方法,计算结果与实际光电成像系统的观察效果基本一致.
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| 关 键 词： | 光电成像系统 电子变倍 信道宽度 直视型 |
| 文章编号： | 1001-0645(2006)08-0716-05 |
| 收稿时间： | 01 5 2006 12:00AM |
| 修稿时间： | 2006年1月5日 |
Study of Electronic Zooming on the Method of Channel Width Evaluation for Direct-View Photo-Electronic Imaging |
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| LU Ping,JIN Wei-qi,GUO Hong and WANG Ling-xue.Study of Electronic Zooming on the Method of Channel Width Evaluation for Direct-View Photo-Electronic Imaging[J].Journal of Beijing Institute of Technology(Natural Science Edition),2006,26(8):716-720. |
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| Authors: | LU Ping JIN Wei-qi GUO Hong and WANG Ling-xue |
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| Institution: | Department of Optical Engineering, School of Information Science and Technology, Beijing Institute of Technology, Beijing 100081, China |
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| Abstract: | Based on the channel width theory,a method of defining electronic zooming in direct-view photo-electronic imaging is given,showing that there exists an optimal value of electronic zooming in the efficacy of photo-electronic imaging.Appropriate electronic zooming may get better in visual effects imaging.Both excessive or insufficient electronic zooming may lead to defective visual efficacy.Gives the quantitative determination method for optimal electronic zooming value under "optimal" conditions of channel width.The computational result agrees basically with that observed in actual photo-electronic imaging systems. |
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| Keywords: | photo-electronic imaging system electronic zooming channel width direct-view systems |
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