Concept

Loi gamma-normale

Publications associées (86)

Speech Recognition with Auxiliary Information

Automatic speech recognition (ASR) is a very challenging problem due to the wide variety of the data that it must be able to deal with. Being the standard tool for ASR, hidden Markov models (HMMs) have proven to work well for ASR when there are controls ov ...

École Polytechnique Fédérale de Lausanne, Computer Science Department2003

Linking Objects in Videos by Importance Sampling

Daniel Gatica-Perez

We present an approach to create hyper-links between video segments that contain objects of interest, based on video structuring, object definition, and stochastic object localization in the video structure. Localization is formulated in the Metric Mixture ...

2002

Linking Objects in Videos by Importance Sampling

Daniel Gatica-Perez

IDIAP2002

Object Localization in Metric Spaces for Video Linking

Daniel Gatica-Perez

While objects often constitute the desired level of access for browsing and retrieval in video databases, an inherent problem for on-line object definition is that of model construction from a few examples. In this paper, we present a probabilistic methodo ...

2002

Unsupervised image segmentation using a telegraph parameterization of Pickard random fields

Andrea Ridolfi

This communication presents a nonsupervised three-dimensional segmentation method based upon a discrete-level unilateral Markov field model for the labels and conditionally Gaussian densities for the observed voxels. Such models have been shown to yield nu ...

Springer Verlag2001

Determination of the identity of the derivatives of the cephalic neural crest: incompatibility between Hox gene expression and lower jaw development

Anne Grapin-Botton

In addition to pigment cells, and neural and endocrine derivatives, the neural crest is characterized by its ability to yield mesenchymal cells. In amniotes, this property is restricted to the cephalic region from the mid-diencephalon to the end of rhombom ...

1998

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