%0 Journal Article
%T Study on Compression Algorithm of Cruise Missile Image Based on Wavelet Code<br>基于小波编码的巡航导弹图像压缩方法研究
%A CHEN Sheng-lai
%A ZHENG Ai-min
%A LI Tao
%A <br>陈升来
%A 郑爱民
%A 李涛
%J 计算机科学
%D 2009
%I 
%X Wavclet code algorithm is adopted because compression algorithm is required to largcratio and real-time compress images by missilcborne compression system under the condition of the guarantee of image quality, and DSP (Digital Signal Processor) is selected as the processor of algorithm. Wavelet code algorithm is composed of two step:images are transformed by integer lifting scheme,and the transform results arc coded by SPIHT(Set Partitioning in Hierarchical Trees) algorithm. Wavelet code algorithm is improved to be fit for DSP parallel process for it has some defeclions such as many repeat calculations, and consuming a large number of memories. Experiment results show that the peak signal-to-noise ratio (PSNR) of improved algorithm is larger than 28dB and is as much as original algorithm,which can meet the requirement of image duality; the compression speed is 20 frames per minute, which totally meets real hme compression reqmrement.
%K SPIHT
%K DSP
%K Cruise missile image
%K Lifting scheme
%K SPIHT
%K DSP<br>巡航导弹图像
%K 提升小波变换
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=48C280A69F6DB15D9C00F8771401627E&yid=DE12191FBD62783C&vid=933658645952ED9F&iid=59906B3B2830C2C5&sid=96A53C367B5173D7&eid=4FE459D71E3BF8EB&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=7