DocumentCode
700115
Title
On phase statistics of complexwavelet coefficients at edges
Author
Rakvongthai, Yothin ; Oraintara, Soontorn
Author_Institution
Dept. of Electr. Eng., Univ. of Texas Arlington, Arlington, TX, USA
fYear
2008
fDate
25-29 Aug. 2008
Firstpage
1
Lastpage
5
Abstract
We investigate the phase information in the dual-tree complex wavelet transform (DT-ℂWT) framework. The probability density function (pdf) of the phase of a complex wavelet coefficient is derived for the edge-type input. A simple method to estimate the parameters of the pdf is presented. The simulation results confirm that the results are consistent with the actual coefficients for both synthetic input and natural images.
Keywords
edge detection; probability; wavelet transforms; complex wavelet coefficient; dual-tree complex wavelet transform; edge-type input; phase information; phase statistics; probability density function; Abstracts;
fLanguage
English
Publisher
ieee
Conference_Titel
Signal Processing Conference, 2008 16th European
Conference_Location
Lausanne
ISSN
2219-5491
Type
conf
Filename
7080647
Link To Document