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Document Type : Latin Dissertation
Language of Document : English
Record Number : 149075
Doc. No : ET20867
Main Entry : Dazhong (Chris) Zhang
Title Proper : STILL IMAGE DATA COMPRESSION USING HIERARCHICAL ADAPTIVE DIMENSION ZERO-TREE RESIDUAL VECrL'OR QUANTIZATION
Note : This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract : A new digital image compression algorithm, HADZTRVQ, is presented based on wavelettransform and vector quantization. It embeds the concept of variable vector dimension VQinto our previously developed method WRDADRVQ, which is also based upon waveletVQ. In the new algorithm, rate-distortion optimization is used to determine the optimalvector dimensions, number of coding units, and zero-tree strategies. By applying multi-ple vector dimensions, HADZTRVQ is supposed to outperform the previous algorithms ofWRDADRVQ. The performances of these two algorithms as well as SPIHT are compared.The results show that HADZTRVQ.
Subject : Electericl tess
: برق
electronic file name : TL44013.pdf
Title and statement of responsibility and : STILL IMAGE DATA COMPRESSION USING HIERARCHICAL ADAPTIVE DIMENSION ZERO-TREE RESIDUAL VECrL'OR QUANTIZATION [Thesis]
 
 
 
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