Title
Using Random Matrix Theory to determine the number of endmembers in a hyperspectral image
Abstract
Determining the number of spectral endmembers in a hyper-spectral image is an important step in the spectral unmixing process, and under- or overestimation of this number may lead to incorrect unmixing for unsupervised methods. In this paper we discuss a new method for determining the number of endmembers, using recent advances in Random Matrix Theory. This method is entirely unsupervised and is computationally cheaper than other existing methods. We apply our method to synthetic images, including a standard test image developed by Chein-I Chang, with good results for Gaussian independent noise.
Year
DOI
Venue
2010
10.1109/WHISPERS.2010.5594854
WHISPERS
Keywords
Field
DocType
gaussian noise,image processing,matrix algebra,gaussian independent noise,hyperspectral image,random matrix theory,spectral endmembers,synthetic images,hyperspectral unmixing,linear mixture model,virtual dimension,covariance matrix,pixel,hyperspectral imaging,signal processing,remote sensing,noise
Pattern recognition,Image processing,Hyperspectral imaging,Gaussian,Pixel,Artificial intelligence,Covariance matrix,Gaussian noise,Standard test image,Mathematics,Random matrix
Conference
ISBN
Citations 
PageRank 
978-1-4244-8907-7
5
0.69
References 
Authors
2
7
Name
Order
Citations
PageRank
k cawse150.69
m k sears250.69
a robin350.69
s b damelin450.69
Konrad J. Wessels59820.52
Frans van den Bergh618921.35
Renaud Mathieu712517.29