| 基于LOCO—I算法的星载图像无损压缩的FPGA实现 |
| |
| 引用本文： | 陈军,王怀超,顾晓东,陈晓敏.基于LOCO—I算法的星载图像无损压缩的FPGA实现[J].微电子学与计算机,2011,28(11). |
| |
| 作者姓名： | 陈军 王怀超 顾晓东 陈晓敏 |
| |
| 作者单位： | 1. 中国科学院空间科学与应用研究中心,北京100190／中国科学院研究生院,北京100190
2. 中国科学院空间科学与应用研究中心,北京,100190 |
| |
| 摘 要： | LOC0-I图像无损压缩算法是JPEG--LS标准的核心算法．文中针对于星载图像无损压缩的具体应用，充分利用了流水和并行技术，给出了基于该算法的高速星载图像无损压缩核的设计和实现．压缩验证系统实验结果表明，该设计可每周期处理一个像素，50MHz频率下数据处理速度可达400Mbps，满足星载图像无损压缩的实际要求．
|
| 关 键 词： | 无损压缩 LOCO--I算法 FPGA |
FPGA Application of Onboard Space Lossless Image Compression Based on LOCO-I Algorithm |
| |
| CHEN Jun,WANG Huai-chao,GU Xiao-dong,CHEN Xiao-min.FPGA Application of Onboard Space Lossless Image Compression Based on LOCO-I Algorithm[J].Microelectronics & Computer,2011,28(11). |
| |
| Authors: | CHEN Jun WANG Huai-chao GU Xiao-dong CHEN Xiao-min |
| |
| Affiliation: | CHEN Jun1,2,WANG Huai-chao1,GU Xiao-dong1,CHEN Xiao-min1(1 Center for Space Science and Applied Research,Chinese Academy of Scienscs,Beijing 100190,China,2 Graduate University of Chinese Academy of Sciences,China) |
| |
| Abstract: | LOCO-I lossless image compression algorithm was selected as the core algorithm of JPEG-LS.This paper focuses on specific applications of onboard image lossless compression and presents the FPGA architectural design based on pipeline and parallel techniques.This design was implemented on a Xilinx XC2V1000.The data throughout is 400 Mbps when the clock is 50 MHz.The experimental results indicate that this design can performed in high-speed,and meet the need of real time onboard image processing. |
| |
| Keywords: | lossless compression LOCO-I algorithm FPGA |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
