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» Image compression using texture modeling
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ICIP
2004
IEEE
14 years 9 months ago
Scalable predictive coding by nested quantization with layered side information
An efficient scalable predictive coding method is proposed for the Wyner-Ziv problem, using nested lattice quantization followed by multi-layer Slepian-Wolf coders (SWC) with laye...
Huisheng Wang, Antonio Ortega
CGF
2006
126views more  CGF 2006»
13 years 7 months ago
Soft Shadow Maps: Efficient Sampling of Light Source Visibility
Shadows, particularly soft shadows, play an important role in the visual perception of a scene by providing visual cues about the shape and position of objects. Several recent alg...
Lionel Atty, Nicolas Holzschuch, Marc Lapierre, Je...
CGF
2008
104views more  CGF 2008»
13 years 7 months ago
Shrinkability Maps for Content-Aware Video Resizing
A novel method is given for content-aware video resizing, i.e. targeting video to a new resolution (which may involve aspect ratio change) from the original. We precompute a per-p...
Yi-Fei Zhang, Shi-Min Hu, Ralph R. Martin
CORR
2010
Springer
208views Education» more  CORR 2010»
13 years 4 months ago
Real-time Robust Principal Components' Pursuit
In the recent work of Candes et al, the problem of recovering low rank matrix corrupted by i.i.d. sparse outliers is studied and a very elegant solution, principal component pursui...
Chenlu Qiu, Namrata Vaswani
ICASSP
2008
IEEE
14 years 2 months ago
Model-based sparsity projection pursuit for lattice vector quantization
In this work we present an efficient coding scheme suitable for lossy image compression using a lattice vector quantizer (LVQ) based on statistically independent data projections...
Leonardo H. Fonteles, Marc Antonini, Ronald Phlypo