一种测量商业数码相机光谱响应的方法  

A Method of Estimating Spectral Response of Commercial Digital Still Camera

作　　者：吴静[1] 杨卫平[2] 冯洁[2] 李宏宁 李梅[2] 

机构地区：[1]锦州医学院网络信息中心,辽宁锦州121001 [2]云南师范大学物理与电子信息学院,云南昆明650092

出　　处：《云南师范大学学报（自然科学版）》2006年第5期42-44,共3页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：国家自然科学基金(60368001);云南省自然科学基金(2005F0033M)

摘　　要：在颜色科学领域,数码相机被广泛地用于颜色测量、多光谱图像的颜色复制、光谱重建和产品检测、分类等场合。其中数码相机的光电特性是一个重要参数。文章介绍了一种通过数码相机的数字响应RGB和光谱能量分布测量商业数码相机相对光谱响应的方法。实验中采用了Sony DSC-F505V数码相机和PhotoResearch 1980B辐射分光光度计。实验发现该数码相机相对光谱响应曲线与CIE1931标准观察者颜色匹配函数相似。说明目前数码相机的滤色片阵列在设计上有了较大的改进,尽量模拟标准观察者函数,以利于真实复制场景的颜色。In color science field, digital still cameras have be winery u multispectral imaging color reproduction, spectral reconstruction and production classifying etc. The photoelectric properties are an important parameter. In this paper we introduce a method for estimating commercial still camera relative spectral response from spectral power input and camera response data. A Sony DSC--FS05V still camera and PhotoResearch 1980B spectroradiometer was adopted in experiment. The possibility was explored that commerce still camera use for color science studying. We have found that spectral response curve of camera is similar with CIE standard colorimetric observ er matching functions. It illuminate that the color filter array （CFA） of camera had most improved on design. It is advantage that the color of scene were faithfully reproduced, if spectral response of cam era can simulate CIE standard colorimetric observer.

关 键 词：数码相机 相对光谱响应 颜色测量 

分 类 号：O432.3[机械工程—光学工程] TN386.5[理学—光学]