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ICIP
2000
IEEE
14 years 9 months ago
A Fast Motion Estimation Algorithm for MPEG-4 Shape Coding
This paper proposes a fast motion estimation algorithm for MPEG-4 shape coding. The proposed algorithm is based on inherent properties of shape coding as well as shape information...
Donghoon Yu, Sung Kyu Jang, Jong Beom Ra
ICASSP
2008
IEEE
14 years 2 months ago
Blind deblurring of natural images
A new method to perform blind image deblurring is proposed. Very few assumptions are made on the blurring filter and on the original image: the blurring filter is assumed to hav...
Mariana S. C. Almeida, Luis B. Almeida
NECO
2010
129views more  NECO 2010»
13 years 6 months ago
A Two-Layer Model of Natural Stimuli Estimated with Score Matching
We consider a hierarchical two-layer model of natural signals in which both layers are learned from the data. Estimation is accomplished by Score Matching, a recently proposed est...
Urs Köster, Aapo Hyvärinen
IGARSS
2010
13 years 5 months ago
A filtering approach to improve deformation accuracy using large baseline, low coherence DInSAR phase images
Phase noise in an interferogram hinders the accuracy and reliability of interferometric synthetic aperture radar (InSAR) measurements, including deformation estimation and topogra...
Abduwasit Ghulam, Reda Amer, Robert Ripperdan
ICIP
2009
IEEE
14 years 8 months ago
Skewed Log-stable Model For Natural Images Pixel Block-variance
This work presents a Log-stable model for natural images blockvariance. Exponential and halfnormal distributions have been previously used to model block-variance, but they were e...