独立式多分辨率VGA/DVI压缩存储系统  

Independent multi-resolution VGA/DVI compression and storage system

作　　者：唐艳发[1] 梁春锋[2] 孙红亮[1] 吴彪[2] 张利[2] 

机构地区：[1]清华大学微电子所,北京100084 [2]清华大学电子工程系,北京100084

出　　处：《电子技术应用》2011年第3期29-31,共3页Application of Electronic Technique

基　　金：国家自然科学基金项目(No:60972022)

摘　　要：一种独立式多分辨率VGA/DVI压缩存储系统,该系统支持VGA/DVI输入,同时支持SV-GA、XGA、SXGA、UXGA、1080p等任意分辨率图像的连续压缩和存储。在100 MHz时钟频率下,系统可以对图像SXGA和UXGA实时压缩为(25帧/s)和(17帧/s)。实验表明,在不同码率下,系统的单帧图像压缩性能与JPEG2000标准近似,PSNR值优于JPEG标准。This paper introduces an independent multi-resolution VGA/DVI image compression and storage system. This system can receive graphics signal from both DVI and VGA interface, support multi-resolution compression including SVGA,XGA,SXGA, UXGA and 1080p, and can implement compression and storage continuously. When the system works at 100 MHz, the compression frame rate of the system can achieve 25 and 17 frames/s to SXGA and UXGA respectively. The experimental result shows that this system has similar performance compared with JEPG2000 standard and the PSNR is better than JPEG standard at different bit rates.

关 键 词：小波变换 多分辨率 FPGA 图像压缩 

分 类 号：TN409[电子电信—微电子学与固体电子学] TP302[自动化与计算机技术—计算机系统结构]