Independent Component Analysis based on Nonparametric Density Estimation on Time-Frequency Domain

2006 ◽  
Author(s):  
Haixiang Xu ◽  
Chi Hau Chen ◽  
Fengyu Cong ◽  
Leiju Yang ◽  
Xizhi Shi
Keyword(s):  
Independent Component Analysis ◽  
Frequency Domain ◽  
Density Estimation ◽  
Component Analysis ◽  
Nonparametric Density Estimation ◽  
Independent Component ◽  
Time Frequency

Separation and Reproduction of Mixed Images Using 2-D Complex Wavelet Transform

2010 ◽  
Vol 36 ◽  
pp. 466-475
Author(s):  
Tsutomu Matsuura ◽  
Amirul Faiz ◽  
Kouji Kiryu
Keyword(s):  
Image Processing ◽  
Wavelet Transform ◽  
Independent Component Analysis ◽  
Component Analysis ◽  
Independent Component ◽  
Complex Wavelet Transform ◽  
Time Frequency ◽  
Frequency Information ◽  
Complex Wavelet ◽  
Complex Valued

The differences method between 1-D wavelet transform and 2-D wavelet transform in image processing is discussed. Both proposed method uses the quotient of complex valued time-frequency information of observed signals to detect the number of sources. No less number of observed signals than the detected number of sources is needed to separate sources. The assumption on sources is quite general independence in the time-frequency plane, which is different from that of independent component analysis. Using the same given Algorithm and parameters for both method, the result on separated images are compared.

Sign in / Sign up

Export Citation Format

Share Document