光学精密工程2012，Vol.20Issue(10)：2260-2267,8.DOI:10.3788/OPE.20122010.2260
解决大幅面CCD相机三色分离的方法
Improved method to solve color separation for large format CCD camera
摘要
Abstract
To correct the color separation of a large format CCD camera, this paper researches the internal structure of the CCD, analyzes the reasons of three color separation of multi-linear-array CCDs and proposes a new correction method to cache three-channel data separately. Then, it establishes the first high-speed tri-CCD large format scanner domestically. On the basis of the internal process structures of the tri-CCD, this correction method caches and restructures the three-channel data in hardware separately, and restores the true color. The theoretical analysis and practical application results show that three-color separation phenomenon has been greatly reformed after treated, and three-channel color is not separation in 1 200 DPI. In 600 DPI, the scan speed of the scanner produced by our team has been up to 5. 08 cm/s, and it only takes 30 s to scan a A0 size drawing. Furthermore, the splicing error of the image after scanning will be superior to +2 pixels。关键词
三线阵CCD相机/彩色CCD/大幅面扫描仪/三色分离Key words
tri-CCD camera/ color CCD/large format scanner/ three color separation分类
信息技术与安全科学引用本文复制引用
刘霖,王平,刘娟秀,叶玉堂,贾宏宇..解决大幅面CCD相机三色分离的方法[J].光学精密工程,2012,20(10):2260-2267,8.基金项目
粤港招标关键领域重点突破项目(No.w0511159) （No.w0511159）
国家兵器集团资助项目(No.w0511142) （No.w0511142）
