Finally , the error images of mp are coded by spiht ( set partitioning in hierarchical trees ) to get the final codestream . in order to testify the effectiveness of the proposed algorithm , aviris images are used for computer simulation and the results indicate the proposed 最后,對經(jīng)過mp算法處理后的殘差圖像利用spiht ( setpartitioninginhierarchicaltrees )算法進(jìn)行編碼,從而完成了對高光譜圖像的壓縮。
4 . an roi coding method realized by foveation technology and two of its extended applications are presented . by unevenly upscaling the wavelet coefficients , the method can not only reconstruct the roi data priorly in a low bit - rate codestream , but make the progressive reconstruction of the image data more convenient for the human vision system 該方法根據(jù)人類視覺生理特點,將小波變換系數(shù)進(jìn)行非均勻的上移位處理,不僅能夠保證感興趣區(qū)域圖像數(shù)據(jù)在低比特數(shù)據(jù)流中的優(yōu)先恢復(fù),還實現(xiàn)了使圖像的漸進(jìn)恢復(fù)過程更加適合人類生理視覺感觀特點的效果。