关键词: 视觉注意, 遥感图像, 压缩编码, 可变分辨率

Abstract: Image compression is one of important research fields in remote sensing image processing. Existing compression methods either miss important details or adopt low compression rate, which can not meet the actual needs of the application and it is difficult to achieve real-time processing requirements. This paper proposes a remote sensing image compression method based on visual attention mechanism. Various compression ratios are adopted according to the different saliency regions. By this method, it not only achieves high compression ratios for entire image, but also keeps high resolution for important regions. Experimental results indicate that in first few saliency regions, the image compression performance indicators of the method are better than that of conventional methods.

Key words: visual attention, remote sensing image, compression encoding, variable resolution