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Document Type : Latin Dissertation
Language of Document : English
Record Number : 152715
Doc. No : ET24507
Main Entry : Ruby Wai-Shan Chan
Title Proper : A Psychovisually-Based Objective Image Quality Evaluator for DCT-Based Lossy Data CompressionPOMPES PAR TRANSITIONS MULTIPLES
Note : This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract : In this thesis, we propose an algorithm for evaluating the quality of DCT-basedcompressed images, called the Psychovisually-Based Objective Image Quality Evaluator(POIQE). The POIQE evaluates the image quality using two psychovisually-basedfidelity indexes: blockiness and similarity. Blockiness measures the patterned squareartifact created as a by-product of the lossy DCT-based compression technique used byPEG and MPEG, while similarity measures the perceivable detail remaining aftercompression. The blockiness and similarity are combined into a single POIQE iudexused to assess quality. The POIQE model is tuned using subjective assessment resultsfrom five subjects evaluating six sets of images. Then, the capability of the model isverified by validation experiments involving four new subjects and five new sets ofimages..
Subject : Electericl tess
: برق
electronic file name : TL48714.pdf
Title and statement of responsibility and : A Psychovisually-Based Objective Image Quality Evaluator for DCT-Based Lossy Data CompressionPOMPES PAR TRANSITIONS MULTIPLES [Thesis]
 
 
 
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