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为了得到夜晚目标的真实色彩信息,设计了三波段真彩色夜视系统,并阐述了其工作原理。根据满月条件下月光的光谱特性,结合典型目标的光谱反射特性和S25~+光电阴极的光谱响应特性,采用对比度反转最大原则,综合考虑人眼的光谱光视效率特性,提出了三波段真彩色夜视技术的光谱分割方法。依据光谱匹配的理论计算结果制备了滤光片,并对滤光片的光谱透过率进行了测量。利用制备的滤光片进行了实验并提出了一种三波段夜视图像彩色融合方法,实验表明:提出的光谱分割方法能够较好地还原目标的真实色彩。
In order to get the true color information of the night target, a three-band true color night vision system is designed and its working principle is expounded. According to the spectral characteristics of moonlight under full moon conditions, the spectral reflection characteristics of typical targets and the spectral response characteristics of S25 ~ + photocathode, the principle of contrast reversal is adopted. Considering the spectrum light efficiency of human eyes, Spectral segmentation method of color night vision technology. The optical filters were prepared according to the theoretical results of spectral matching, and the spectral transmittance of the optical filters was measured. Experiments were carried out by using the prepared filters and a three-band night-vision image color fusion method was proposed. Experiments show that the proposed spectral segmentation method can reduce the true color of the target well.