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NECO
2000
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13 years 10 months ago
Practical Identifiability of Finite Mixtures of Multivariate Bernoulli Distributions
The class of finite mixtures of multivariate Bernoulli distributions is known to be nonidentifiable, i.e., different values of the mixture parameters can correspond to exactly the...
Miguel Á. Carreira-Perpiñán, ...
BMVC
2002
14 years 1 months ago
Maximum Likelihood 3D Reconstruction from One or More Images under Geometric Constraints
We address the 3D reconstruction of scenes in which some planarity, collinearity, symmetry and other geometric properties are known
Etienne Grossmann, José Santos-Victor
ITCC
2000
IEEE
14 years 3 months ago
Dequantization Bias for JPEG Decompression
Standard JPEG decompression reconstructs quantized DCT coefficients to the center of the quantization bin. This fails to exploit the nonuniform distribution of the AC coefficien...
Jeffery R. Price, Majid Rabbani
ICASSP
2008
IEEE
14 years 5 months ago
A novel a priori SNR estimation approach based on selective cepstro-temporal smoothing
While state-of-the-art approaches obtain an estimate of the a priori SNR by adaptively smoothing its maximum likelihood estimate in the frequency domain, we selectively smooth the...
Colin Breithaupt, Timo Gerkmann, Rainer Martin
ICPR
2008
IEEE
15 years 3 days ago
Refining PTZ camera calibration
Due to the increased need for security and surveillance, PTZ cameras are now being widely used in many domains. Therefore, it is very important for the applications like video mos...
Hassan Foroosh, Imran N. Junejo
ICIP
2003
IEEE
15 years 15 days ago
Bayesian parameter estimation in image reconstruction from subsampled blurred observations
In this paper we consider the estimation of the unknown hyperparameters for the problem of reconstructing a high-resolution image from multiple undersampled, shifted, blurred and ...
Miguel Vega, Javier Mateos, Rafael Molina, Aggelos...
ICIP
2005
IEEE
15 years 17 days ago
Featureless global alignment of multiple images
The majority of the approaches to the automatic recovery of a panoramic image from a set of partial views are suboptimal in the sense that the input images are aligned, or registe...
Bernardo Esteves Pires, Pedro M. Q. Aguiar
ECCV
2002
Springer
15 years 23 days ago
Multimodal Data Representations with Parameterized Local Structures
Abstract. In many vision problems, the observed data lies in a nonlinear manifold in a high-dimensional space. This paper presents a generic modelling scheme to characterize the no...
Ying Zhu, Dorin Comaniciu, Stuart C. Schwartz, Vis...