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PAMI
2011
15 years 2 months ago
Robust Bilayer Segmentation and Motion/Depth Estimation with a Handheld Camera
—Extracting high-quality dynamic foreground layers from a video sequence is a challenging problem due to the coupling of color, motion, and occlusion. Many approaches assume that...
Guofeng Zhang, Jiaya Jia, Wei Hua, Hujun Bao
JMLR
2010
155views more  JMLR 2010»
15 years 2 months ago
Bayesian Gaussian Process Latent Variable Model
We introduce a variational inference framework for training the Gaussian process latent variable model and thus performing Bayesian nonlinear dimensionality reduction. This method...
Michalis Titsias, Neil D. Lawrence
TNN
2010
216views Management» more  TNN 2010»
15 years 2 months ago
Simplifying mixture models through function approximation
Finite mixture model is a powerful tool in many statistical learning problems. In this paper, we propose a general, structure-preserving approach to reduce its model complexity, w...
Kai Zhang, James T. Kwok
CORR
2011
Springer
167views Education» more  CORR 2011»
14 years 11 months ago
The weak password problem: chaos, criticality, and encrypted p-CAPTCHAs
- Vulnerabilities related to weak passwords are a pressing global economic and security issue. We report a novel, simple, and effective approach to address the weak password probl...
T. V. Laptyeva, S. Flach, K. Kladko
ICASSP
2011
IEEE
14 years 11 months ago
A robust estimator and detector of circularity of complex signals
Recent research has revealed that circularity (or, propriety) of complex random signals can be exploited in developing optimal signal processors. In this paper, a robust estimator...
Esa Ollila, Visa Koivunen, H. Vincent Poor
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