Publications de Gianluca Antonini

Locating lightning strikes and flashovers along overhead power transmission lines using electromagnetic time reversal

Mario Paolone, Gianluca Antonini, Reza Razzaghi, Keyhan Sheshyekani, Marco Scatena

The paper presents a method to identify the location of direct lightning strikes to overhead transmission lines and potential subsequent flashover(s). The method is based on the electromagnetic time reversal theory and relies on the use of a single measure ...

Elsevier2018

Modelling human perception of static facial expressions

Michel Bierlaire, Jean-Philippe Thiran, Gianluca Antonini, Javier Cruz Mota, Thomas Robin, Matteo Sorci

A recent internet based survey of over 35'000 samples has shown that when different human observers are asked to assign labels to static human facial expressions, different individuals categorize differently the same image. This fact results in a lack of a ...

2010

Specification, estimation and validation of a pedestrian walking behavior model

Michel Bierlaire, Gianluca Antonini, Javier Cruz Mota, Thomas Robin

We propose and validate a model for pedestrian walking behavior, based on discrete choice modeling. Two main types of behavior are identified: unconstrained and constrained. By unconstrained, we refer to behavior patterns which are independent from other i ...

2009

Modelling human perception of static facial expressions

Michel Bierlaire, Jean-Philippe Thiran, Gianluca Antonini, Matteo Sorci, Javier Cruz Mota, Barbara Cerretani

Data collected through a recent web-based survey show that the perception (i.e. labeling) of a human facial expression by a human observer is a subjective process, which results in a lack of a unique ground-truth, as intended in the standard classification ...

2008

Robust infants face tracking using active appearance models: a mixed-state CONDENSATION approach

Jean-Philippe Thiran, Luigi Bagnato, Gianluca Antonini, Matteo Sorci

In this paper a new extension of the CONDENSATION algorithm, with application to infants face tracking, will be introduced. In this work we address the problem of tracking a face and its features in baby video sequences. A mixed state particle filtering sc ...

Springer Verlag2007

Fisher's Discriminant and Relevant Component Analysis for static facial expression classification

Jean-Philippe Thiran, Gianluca Antonini, Matteo Sorci

This paper addresses the issue of automatic classification of the six universal emotional categories (joy, surprise, fear, anger, disgust, sadness) in the case of static images. Appearance parameters are extracted by an active appearance model(AAM) represe ...

2007

Behavioral priors for detection and tracking of pedestrians in video sequences

Michel Bierlaire, Jean-Philippe Thiran, Gianluca Antonini

In this paper we address the problem of detection and tracking of pedestrians in complex scenarios. The inclusion of prior knowledge is more and more crucial in scene analysis to guarantee flexibility and robustness, necessary to have reliability in comple ...

2006

Counting pedestrians in video sequences using trajectory clustering

Jean-Philippe Thiran, Gianluca Antonini

In this paper we propose to use clustering methods for automatic counting of pedestrians in video sequences. As input, we consider the output of those detection/ tracking systems that overestimate the number of targets. Clustering techniques are applied to ...

2006

Discrete choice models of pedestrian walking behavior

Michel Bierlaire, Gianluca Antonini

We propose a discrete choice framework for pedestrian dynamics, modelling short term behavior of individuals as a response to the presence of other pedestrians. We use a dynamic and individual-based spatial discretization, representing the physical space. ...

2006

A discrete choice modeling framework for pedestrian walking behavior with application to human tracking in video sequences

Gianluca Antonini

Intelligent Transportation Systems (ITS) have triggered important research activities in the context of behavioral dynamics. Several new models and simulators for driving and travel behaviors, along with new integrated systems to manage various elements of ...

EPFL2005