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提出了一种用多波段θ调制的白光光学/数字图像处理作多光谱照相的技术,即通过使用多波段θ调制器对目标的某几个波段信息进行调制,使用傅里叶变换技术对各个多波段图像解调,可分别得到目标各波段的图像信息,然后通过假彩色融合得到目标多波段假彩色图像。从理论和实验上论证了使用多波段θ调制器与单个CCD探测器组成的多光谱照相系统,代替传统的多个相机构成的多光谱照相系统的可行性和优越性。该技术与传统多光谱照相技术相比,具有体积小、重量轻和假彩色融合操作简单方便等优点。
A multi-band θ-modulated white light optical / digital image processing technique for multispectral imaging is proposed. By using a multi-band θ modulator to modulate certain target information, Fourier transform is applied to each The multi-band image demodulation can obtain the image information of each target band separately, and then the target multi-band false color image is obtained by fusing the false color. The feasibility and the superiority of multispectral camera system using multi-band θ modulator and single CCD detector are demonstrated theoretically and experimentally. Compared with the traditional multi-spectral photography technology, this technology has the advantages of small volume, light weight and simple color fusion operation.