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"
IMAGE CODING BY RATEDISTORTION ADAPTIVE ZEROTREEBASED RESIDUE VECTOR QUANTIZATION
"
Document Type
:
Latin Dissertation
Language of Document
:
English
Record Number
:
150904
Doc. No
:
ET22696
Main Entry
:
QUN GU
Title Proper
:
IMAGE CODING BY RATEDISTORTION ADAPTIVE ZEROTREEBASED RESIDUE VECTOR QUANTIZATION
Note
:
This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract
:
Lossy image compression generaIly involves two basic techniques: transform and quan-tization. A typical example is the current JPEG standard, which could be viewed as atransform coder followed by a variable-lengt h quant izer.Tkansforrn can decorrelate images and represent them by fewer elements in the trans-formed space. Wavelet transform holds many desirable properties such as joint time(spat ia1)-frequency locality, mult i-resolut ion analysis, and fast computation, which makeit a very powerful tool for image compression.Quantization includes scalar quantization (S Q) and vector quantization (VQ) . Al-though scalar quantization is used in most applications because it is relatively simple toimplement, vector quantization, according to the result of Shannon's rate distortion the-ory, can potent idly provide better performance than scalar quantization, especially on the....-...,..tested for theQ1 PC1 bus cardBoth these projects mere sofixare des elopment efforts tonards contributing to dlfferentaspects of Roboucs and lZ1echatronics projects m the Controls and Roboucs Group..
Subject
:
Electericl tess
:
برق
electronic file name
:
TL45922.pdf
Title and statement of responsibility and
:
IMAGE CODING BY RATEDISTORTION ADAPTIVE ZEROTREEBASED RESIDUE VECTOR QUANTIZATION [Thesis]
http://localhost/site/catalogue/150904
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TL45922.pdf
TL45922.pdf
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