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IGARSS
2010
13 years 5 months ago
Spatial-spectral endmember extraction from remotely sensed hyperspectral images using the watershed transformation
In this paper, we investigate the use of the watershed transformation for integrating spatial and spectral information in the process of endmember extraction for spectral unmixing...
Maciel Zortea, Antonio J. Plaza
STOC
2010
ACM
269views Algorithms» more  STOC 2010»
13 years 12 months ago
Approximations for the Isoperimetric and Spectral Profile of Graphs and Related Parameters
The spectral profile of a graph is a natural generalization of the classical notion of its Rayleigh quotient. Roughly speaking, given a graph G, for each 0 < < 1, the spect...
Prasad Raghavendra, David Steurer and Prasad Tetal...
CGF
2004
203views more  CGF 2004»
13 years 7 months ago
A Biophysically-Based Spectral Model of Light Interaction with Human Skin
Despite the notable progress in physically-based rendering, there is still a long way to go before we can automatically generate predictable images of biological materials. In thi...
Aravind Krishnaswamy, Gladimir V. G. Baranoski
APVIS
2007
13 years 9 months ago
A comparison of vertex ordering algorithms for large graph visualization
In this study, we examine the use of graph ordering algorithms for visual analysis of data sets using visual similarity matrices. Visual similarity matrices display the relationsh...
Christopher Mueller, Benjamin Martin, Andrew Lumsd...
CVPR
2009
IEEE
15 years 3 months ago
Coupled Spectral Regression for Matching Heterogeneous Faces
Face recognition algorithms need to deal with variable lighting conditions. Near infrared (NIR) image based face recognition technology has been proposed to effectively overcome...
Stan Z. Li, Zhen Lei