用电荷耦合装置实现显示屏色度的快速测量  

Fast colorimetric measurement of display screen with CCD

作　　者：王明刚[1] 李志能[1] 

机构地区：[1]浙江大学信息与电子工程学系,浙江杭州310027

出　　处：《浙江大学学报（工学版）》2005年第10期1549-1552,共4页Journal of Zhejiang University：Engineering Science

基　　金：国家"863"高技术研究发展计划资助项目(2003AA1Z2080)

摘　　要：针对现有的显示屏色度测量方法存在速度慢、不灵活等问题,提出一种利用电荷耦合装置(CCD)成像系统测试显示屏色度的方法.它主要通过图像采集卡把CCD拍摄的显示屏画面进行三色分解和采集,然后根据色度学的定义和有关标准,由计算机对采集数据进行处理,把处理后的结果用三维图显示.实验证明,该方法可以准确地测出显示屏上各点的色度,并能够直观地显示测试区域的色差变化,同时提高了测试速度.A method for measurement of display screen color was introduced to improve the test speed and flexibility of the existing method of colorimetric measurement. This measurement system uses image acquisition card to decompose the picture screen＇s into tri-stimulus data and transfer them to computer. Then a computer processed the input data on the basis of definitions and criteria of chromatics and showed the outcome in tri-dimensional picture. The results of experiments testified that this method can measure the display screen color very precisely and rapidly and show the ending very visually.

关 键 词：色度测量 电荷耦合装置 图像采集卡 三刺激值 

分 类 号：TN386.5[电子电信—物理电子学] TN141