Pierre Lacroix

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This paper addresses the problem of practically implementing an original sound source localization strategy for mobile robots applications. The proposed method is based on a convex optimization solution to beamforming. It allows the sensing of signals within a direction of arrival and frequency domain of interest while rejecting other data. A precise(More)
This paper presents START (Simplified Toolbar to Accelerate Repeated Tasks), a new, freely downloadable ArcGIS extension designed for non-expert GIS users. START was developed jointly by the Geneva International Centre for Humanitarian Demining (GICHD) and the University of Geneva to support frequent workflows relating to mine action. START brings together(More)
This article presents a reconfigurable architecture to calculate a dense disparity map of two stereo images based on census transform. This architecture is simplified and efficient as a result of binary operations and integer arithmetic used by census transform. Our architecture was prototyped using GAUT which is a practical tool to develop high-level(More)
This paper describes the on-going work on the design and the implementation of an integrated visual system dedicated to the classical function Obstacle detection. This system will be embedded on a mobile robot, which must navigate in a cluttered and dynamic environment: typically a public area like pedestrian streets, a transport station or a commercial(More)
OGC Web Feature Service (WFS) and Web Coverage Service (WCS) specifications allow interoperable access to distributed geospatial data made available through spatial data infrastructures (SDIs). To ensure that a service is sufficiently responsive to fulfill users' expectations and requirements, performance of services must be measured and monitored to track(More)
INTRODUCTION The dog is frequently used for cardiovascular safety pharmacology and for toxicology studies, but is not often used for central nervous system (CNS) safety pharmacology purposes. We have therefore examined the electroencephalogram (EEG) in conscious dogs by means of radio-telemetry methods using the proconvulsant agent pentylenetetrazole (PTZ)(More)
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