WU Wenbo, LI Tao, WANG Kun, QIN Qianqing. Research on Remote Sensing Image Compression Using Orientation-adaptive Lifting Wavelet[J]. Journal of Image and Graphics, 2010, 15(4): 664. DOI: 10.11834/jig.20100418.
Research on Remote Sensing Image Compression Using Orientation-adaptive Lifting Wavelet
This paper addresses the problem of image compression in remote sensing applications. Compared with other static images
remote-sensing images are characterized with complex textures and weak local correlation. Most of current wavelet-based algorithms of image compression have not taken this into account
in which the predictions are always performed in the horizontal or vertical directions. In order to further improve coding efficiency
an efficient remote sensing image coding algorithm based on orientation-adaptive lifting wavelet(OALW) is proposed. First
the OALW is applied to the image at the direction where the pixels have a strong correlation
rather than at the horizontal or vertical orientation. Compression is then achieved by using a subband-bit-plane encoding method. In the experiments
two satellite images are selected to test the performance of the algorithm. Experimental results illustrate that it provides higher performance than JPEG2000 in low-bits compression.