基于JPEG-LS的遥感图像无损压缩技术

Lossless Image Compression of Remote Sensing Images Base on the JPEG-LS

针对遥感相机图像数据传输要求,介绍了一种四通道输出的线阵CCD传感器,通过硬件将四个通道的图像数据整合成完整的图像数据,使用JPEG-LS无损压缩算法对图像数据进行压缩以减小数据的传输量,从而减慢数据传输速度,减小误码率。图像数据整合和压缩都在可编程逻辑器件中完成,通过实验验证了该方法能使传输量减少一半。

According to the request of remote sensing image data transition,linear array CCD with Four-channel data-output is introduced.The hardware make up the four channel data into a complete image,with the JPEG-LS lossless compression the data is reduced.The combination and compression are implemented in programmable logic device,experiment proved the method can reduced the data into half.