JPEG2000遥感图像实时压缩系统

随着遥感技术发展,传输型空间飞行器系统中传输大量遥感数据的需求日益增加,对图像压缩处理能力提出了更高的要求,而现今相对落后的遥感图像压缩设备与海量数据压缩需求形成了矛盾.为解决这一问题,该文提出了一种遥感图像实时压缩系统的设计实现方法.此方法基于先进的JPEG2000图像压缩标准,使用专用协议芯片,结合高速的CompactPCI内部总线和可编程逻辑芯片,搭建了硬件压缩系统,并在工控机终端建立软件解码单元,实现了大量遥感数据的实时传输压缩与解码显示,提供了实验结果,并针对实验图像数据,给出了适合于遥感图像压缩的参数设置情况.测试证明,该遥感图像压缩系统能够实时连续压缩数据,图像压缩效果达到应用要求.

JPEG2000 Remote- Sensing Real- time Encoding System

With the development of remote sensing technology,there's the general problem of huge data and the increasing demand of real-time image processing in the application of image compression.A new design method of real-time encoding system has been developed here.The method is based on the advanced image compression stand- ard JPEG2000,together with high speed internal CompactPCI bus and Programmable Logic Device to build a hard- ware compression system,and set up a software decode system in the computer to implement high-speed data real- time encoding and decoding process.The experiment results and the compression parameters are provided for remote -sensing images.The experiment shows that this system works well and the reconstructed images are satisfactory.