适于CCD相机图像压缩的位平面编码器  

Bit Plane Coder for Image Compression of CCD Camera

作　　者：李进[1,2] 金龙旭[1] 韩双丽[1] 郝贤鹏[1] 吕曾明[1] 陶宏江[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所,吉林长春130033 [2]中国科学院研究生院,北京100039

出　　处：《电视技术》2013年第13期45-48,共4页Video Engineering

基　　金：国家"863"高技术研究发展计划项目(86325113B)

摘　　要：针对目前JPEG2000中最优截断嵌入式块编码器硬件实现效率低且占用大量资源问题,提出一种适于CCD相机图像压缩的位面编码器(BPC)。BPC结构思想是基于数据路径详细分析来获得上下文窗口的。另外,使用自主研发的地面检测设备对采用BPC结构设计的JPEG2000图像压缩系统进行实验。实验结果表明,BPC结构CCD图像压缩系统可以稳定可靠地工作,BPC具有较高的工作性能,工作频率达到75 MHz。压缩系统与传统方法相比较,平均PSNR提高了0.91 dB,非常适于CCD相机的应用。In order to solve the problem of the low efficiency and occupying a large amount of storage resources on the implementation of EBCOT of JPEG2000, a novel bit plane coder （BPC） for image compression of CCD camera is proposed in this paper. The idea of proposed BPC architecture is based on detailed analysis of data path used to obtain context windows. Finally, the JPEG2000 image compression system based on proposed BPC is tested using the ground test equipment, which is designed in this paper. The experimental results showed that the CCD image compression based on proposed BPC can work stably and reliably. BPC has good work ability and its frequency of operation can reach 75 MHz. Compared with the traditional method,

关 键 词：CCD相机 JPEG2000压缩 比特平面编码器 

分 类 号：TP391.4[自动化与计算机技术—计算机应用技术]