基于液晶可调变滤色器的光谱图像获取及颜色重建方法  

Methods of spectral image capture and color reconstruction based on liquid crystal tunable filter technology

作　　者：田立勋[1] 廖宁放[1] 王佳佳[1] 柴阿丽[2] 谭博能[1] 廉玉生[1] 

机构地区：[1]北京理工大学颜色科学与工程实验室,北京100081 [2]中国农业科学院植物花卉研究所,北京100081

出　　处：《光学技术》2012年第5期593-597,共5页Optical Technique

摘　　要：基于液晶可调变滤色器(LCTF)的光谱成像系统具有光谱分辨率高、结构紧凑、控制灵活等特点。搭建了一套可见光波段的高分辨率LCTF光谱成像系统,对系统的光谱图像获取及彩色图像重建方法进行了研究;建立了系统的光谱及颜色重建模型;基于标准色卡及标准测色系统,对该系统的颜色复现效果进行了实验验证;实验结果表明,该LCTF光谱成像系统的彩色图像颜色复现精度达可到较小色差水平。The spectral imaging system based on liquid crystal tunable filter （LCTF） has the advantages such as high spectral resolution, compact structure, and flexible control. A high-resolution LCTF spectral imager within visible band is constructed, and methods of spectral image capture and color image reconstruction is studied. Effects of color recon- struction are verified by experiments with the standard color card and the standard color measurement system. The re- sults indicate that color reconstruction of images captured by the LCTF spectral imaging system has a smaller color differ- ence.

关 键 词：颜色重建 高分辨率光谱成像 三刺激值 液晶光阀 

分 类 号：O432.3[机械工程—光学工程]