A VLSI ARCHITECTURE FOR LIFTING-BASED WAVELET PACKET TRANSFORM IN FINGERPRINT IMAGE COMPRESSION

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" A VLSI ARCHITECTURE FOR LIFTING-BASED WAVELET PACKET TRANSFORM IN FINGERPRINT IMAGE COMPRESSION "

Document Type	:	Latin Dissertation
Language of Document	:	English
Record Number	:	151875
Doc. No	:	ET23667
Main Entry	:	Tao Zhu
Title Proper	:	A VLSI ARCHITECTURE FOR LIFTING-BASED WAVELET PACKET TRANSFORM IN FINGERPRINT IMAGE COMPRESSION
Note	:	This document is digital این مدرک بصورت الکترونیکی می باشد
Abstract	:	FBI uses a technique called Wavelet Scalar Quantization (WSQ), a wavelet packettransform (WPT) based method, to compress its fingerprint images. Though many VLSIarchitectures have been proposed for wavelet transform in the literature, it is not the casefor the WPT. In this thesis, a VLSI architecture capable of computing the WPT ispresented for application of WSQ. In the proposed architecture, Liftjng Scheme (LS) isused to generate wavelets instead of the traditional convolution filter-bank (FB) specifiedin original standard. A comparative study between LS and FB shows that quality ofimages transformed by LS is completely acceptable (with 30dB - 40dB PSNR at a targetbit rate of 0.75dpp) while fewer operations............-....,....-...,..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	:	TL46914.pdf
Title and statement of responsibility and	:	A VLSI ARCHITECTURE FOR LIFTING-BASED WAVELET PACKET TRANSFORM IN FINGERPRINT IMAGE COMPRESSION [Thesis]