基于ADV202的实时窄信道视频压缩及解压缩系统设计  

Design of a real-time and narrow channel video compression and decompression system based on ADV202

作　　者：陆璐[1] 黄鲁[1] 

机构地区：[1]中国科学技术大学电子科学与技术系,安徽合肥230027

出　　处：《电子技术应用》2009年第6期40-42,46,共4页Application of Electronic Technique

摘　　要：为了满足视频传输的高实时性和无线信道的窄信道要求,设计了一种基于JPEG2000的视频压缩及解压缩系统。通过专用芯片ADV202实现JPEG2000压缩方式,其优点是在窄信道下具有高实时性。使用FPGA实现跳像素并通过配置ADV202寄存器实现跳场减少数据,满足了窄信道下实现较低压缩率压缩视频图像的要求,提高了视频图像还原质量。A video compression and decompression system based on JPEG2000 compression standard is designed to meet the demands of high real-time and narrow wireless channel. JPEG2000 compression is achieved by the specific chip ADV202 in this system and it has such characteristic as high real-time in the narrow channel. By using FPGA to skip pixels and by configuring ADV202 to skip fields, the system can adopt a low compression ratio to meet the demand of narrow channel, and improve video decompression quality.

关 键 词：JPEG2000 ADV202 跳像素 跳场 

分 类 号：TN919.81[电子电信—通信与信息系统]