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ICIP
2010
IEEE
14 years 7 months ago
Constructing a sparse convolution matrix for shift varying image restoration problems
Convolution operator is a linear operator characterized by a point spread functions (PSF). In classical image restoration problems, the blur is usually shift invariant and so the ...
Stanley H. Chan
ICASSP
2011
IEEE
14 years 1 months ago
Adaptive detection of multiple point-like targets with conic acceptance
In this paper we consider the problem of detecting multiple point-like targets in the presence of steering vector mismatches and Gaussian disturbance with unknown covariance matri...
Chengpeng Hao, Francesco Bandiera, Jun Yang, Chaoh...
GLOBECOM
2009
IEEE
15 years 4 months ago
Multiple Repeater Placement for Assisting Long-Range LOS MIMO Links
— A wireless MIMO link is considered in a LOS configuration with multiple SISO wireless repeaters assisting. A theoretical analysis is presented in which repeater positions are c...
Brett T. Walkenhorst, Mary Ann Ingram
ICPR
2010
IEEE
15 years 4 months ago
Bayesian Inference for Nonnegative Matrix Factor Deconvolution Models
In this paper we develop a probabilistic interpretation and a full Bayesian inference for non-negative matrix deconvolution (NMFD) model. Our ultimate goal is unsupervised extract...
Serap Kirbiz, Ali Taylan Cemgil, Bilge Gunsel
ICMCS
2006
IEEE
112views Multimedia» more  ICMCS 2006»
15 years 3 months ago
An New Coefficients Transform Matrix for the Transform Domain MPEG-2 TO H.264/AVC Transcoding
In this paper, a fast transform method is proposed to convert MPEG-2 8-tap discrete cosine transform (DCT) coefficients to H.264/AVC 4-tap integer transform coefficients directly ...
Gao Chen, Shouxun Lin, Yongdong Zhang, Gang Cao