Bayer格式图像压缩方法及FPGA实现  

Compression Methods and FPGA Implementation for Bayer Pattern Image

作　　者：马涛[1,2] 汶德胜[1] 崔巍[1,2] 

机构地区：[1]中国科学院西安光学精密机械研究所 [2]中国科学院研究生院,北京100039

出　　处：《科学技术与工程》2006年第11期1505-1511,共7页Science Technology and Engineering

摘　　要：单片CCD或CMOS传感器数字相机采用CFA获得彩色图像信息。在分析Bayer格式图像特殊性的基础上,讨论了Bayer图像的几种压缩方法,提出了用色度空间和频域误差等多种方法评价压缩算法性能的方法,这些方法较全面地反映了算法的性能差异并为合理选择提供了依据。最后,提出了一种算法的FPGA实现方案,经验证其性能满足设计要求。Digital still camera using single-chip CCD or CMOS sensor acquire colorful image with a Color Filter Array （CFA）. Based on the analysis of particularity of Bayer pattern, some methods and issues were discussed involving the compression of CFA data before compression. Then, a new chromaticity space measure method and CZP measure method of image quality are proposed. These methods can highly reflect the differences between performances of the methods and give guidance for selection. Last, a pre-process method is simulated and tested by hardware of FPGA with a simulation wave show.

关 键 词：图像压缩 BAYER格式 色度空间 CZP FPGA 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]