Abstract：The full frame transfer sensor with large array is used in the large array filter-type multi-spectral imaging system, and a mechanical shutter is employed to avoid the images blurred. But the mechanical shutter is unstable, reducing the mosaic images’ uniformity and producing RGB images’ color bar with bias.The paper proposed a method of relative radiance calibration based on objects’ radiance coherence.The correction factors were obtained by the different images with same objects, and used to correct the images based on the first frame. The mosaic images’ first difference was introduced to appraise the images uniformity before and after correction. The field data were corrected by this method, which indicated that the method could correct the non-uniformity of mosaic images and the color bar with bias. The method is unsensitive to the accuracy of mosaicking, and can be used widely.
王建威，裴琳琳, 谭 政，黄 旻，吕群波，刘扬阳，李伟艳. 机械快门滤光片式多光谱成像仪相对定标方法研究[J]. 光谱学与光谱分析, 2017, 37(08): 2615-2618.
WANG Jian-wei, PEI Lin-lin, TAN Zheng, HUANG Min, Lü Qun-bo, LIU Yang-yang, LI Wei-yan. Study on the Relative Radiance Calibration Method of Large Array Filter-Type Multispectral Imaging System. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(08): 2615-2618.
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