摘要
从主动光学成像系统的照明模型出发 ,研究了大视场情况下目标和景物的成像性质 ,分析了传输介质对照明和成像光束的衰减作用 ,得出了光学成像系统像面照度的计算公式 ,并对其衬比传递特性和视场大小对成像的影响进行了详细的分析 ,得出了小视场近似的条件 ,其结果可用于主动光学成像系统的设计。
Based on the irradiation model and imaging principles of an active optical imaging system, the imaging properties of active optical imaging systems with wide field of view are studied by taking account of the effects of both atmospheric attenuation and scattering. By theoretically studying, the formulas for calculating the irradiance on the imaging plane and the contrast of the image are obtained. The effects of atmospheric attenuation and scattering are analyzed. The transfer properties of the contrast and the effects of the size of the field of view on imaging are studied in detail. The validity of narrow field of view approximation is also analyzed. These results are useful to the design of active optical image systems, image analysis and object recognition.
出处
《光学精密工程》
EI
CAS
CSCD
2000年第2期106-109,共4页
Optics and Precision Engineering
基金
国家自然科学基金
关键词
点光源
主动光学成像系统
衰减
成像
大视场
point source
active optical imaging system
attenuation
scattering
contrast
