|Table of Contents|

A New Edge Detection Algorithm Based on Wavelet Packet and Human Visual System(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2010年04期
Page:
134-138
Research Field:
计算机科学
Publishing date:

Info

Title:
A New Edge Detection Algorithm Based on Wavelet Packet and Human Visual System
Author(s):
Sun Lijie; Zhao Jingxiu; Zheng Meizhu; Gao Zhong
School of Computer Science,Qufu Normal University,Rizhao 276826,China
Keywords:
w ave let packet;  HVS;  them edian filter ing;  the wave le t packe t co efficients;  zero-crossing
PACS:
TP391.41
DOI:
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Abstract:
To recognize the lim it o fw avelet transform and the sensitive diversity of hum an v isual system, an approach us ing a new edge detection algor ithm based on w avelet packe t and hum an v isua l system is proposed. F irstly, them ed ian fi-l tering is easy to remove im age no ise, and the deno ising im age is transfo rm ed by w av elet packet; The edge detection reg ions a re by se lecting thew ave let packet coeffic ients based on the characteristic o f hum an v isua lmode,l and then useLog a lgo rithm to se lec t the zero-crossing; The detected edge image is obta ined by reverse w avelet packe t. The expe rim en tal resu lts show that the a lgo rithm compared w ith Roberts、Sobel、Prew itt and Laplacian of Gauss ian edge detec tion a lgor ithm s not only agrees mo re w ith hum an?? s recogn ition, but a lso can get an even be tter applica tion on some reg ions inc lud ing abundant loca l deta ils and som e tiny areas that change.

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Last Update: 2013-04-08