摘要
Asimpleandadaptivelosslesscompressionalgorithmisproposedforremotesensingimagecompression,whichincludesintegerwavelettransformandtheRiceentropycoder.ByanalyzingtheprobabilitydistributionofintegerwavelettransformcoefficientsandthecharacteristicsofRiceentropycoder,thedivideandrulemethodisusedforhigh-frequencysub-bandsandlow-frequencyone.High-frequencysub-bandsarecodedbytheRiceentropycoder,andlow-frequencycoefficientsarepredictedbeforecoding.Theroleofpredictoristomapthelow-frequencycoefficientsintosymbolssuitablefortheentropycoding.ExperimentalresultsshowthattheaverageCompressionRatio(CR)ofourapproachisabouttwo,whichisclosetothatofJPEG2000.Thealgorithmissimpleandeasytobeimplementedinhardware.Moreover,ithasthemeritsofadaptability,andindependentdatapacket.Sothealgorithmcanadapttospacelosslesscompressionapplications.
出版日期
2008年05月15日(中国期刊网平台首次上网日期,不代表论文的发表时间)