0000000000418745

AUTHOR

Oscar Belmonte

showing 3 related works from this author

Simultaneous ranging and self-positioning in unsynchronized wireless acoustic sensor networks

2016

Automatic ranging and self-positioning is a very desirable property in wireless acoustic sensor networks, where nodes have at least one microphone and one loudspeaker. However, due to environmental noise, interference, and multipath effects, audio-based ranging is a challenging task. This paper presents a fast ranging and positioning strategy that makes use of the correlation properties of pseudonoise sequences for estimating simultaneously relative time-of-arrivals from multiple acoustic nodes. To this end, a proper test signal design adapted to the acoustic node transducers is proposed. In addition, a novel self-interference reduction method and a peak matching algorithm are introduced, a…

Wireless acoustic sensor networksMicrophoneComputer scienceReal-time computing02 engineering and technologyInterference (wave propagation)SynchronizationlocalizationTECNOLOGIA ELECTRONICA0202 electrical engineering electronic engineering information engineeringWirelessElectrical and Electronic Engineeringwireless acoustic sensor networksbusiness.industryRangingNode (networking)020208 electrical & electronic engineeringpseudo-noise seequences020206 networking & telecommunicationsRangingTransducerComputer Science::SoundEmbedded systemLocalizationSignal ProcessingLoudspeakerbusinessPseudo-noise seequencesMultipath propagation
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Efficiently using connectivity information between triangles in a mesh for real-time rendering

2004

Triangle meshes are the most popular standard model used to represent polygonal surfaces. Drawing these meshes as a set of independent triangles involves sending a vast amount of information to the graphics system. Taking advantage of the connectivity information between the triangles in a mesh dramatically diminishes the amount of information the graphics system must handle. Multiresolution Triangle Strips (MTS) represent a triangle mesh as a collection of multiresolution triangles strips. These strips are the basis of both the storage and the rendering stage. The coherence between the extraction of two levels of detail is used in the model in order to decrease the visualisation time.

Computer Networks and CommunicationsComputer scienceComputer Science::Computational GeometryReal-time renderingVisualizationRendering (computer graphics)Computer Science::GraphicsHardware and ArchitectureComputer graphics (images)Triangle meshPolygonPolygon meshGraphicsInteractive visualizationSoftwareLevel of detailComputingMethodologies_COMPUTERGRAPHICSFuture Generation Computer Systems
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Efficient Implementation of Multiresolution Triangle Strips

2002

Triangle meshes are currently the most popular standard modelto represent polygonal surfaces. Drawing these meshes as a set of independent triangles involves sending a vast amount of information to the graphic engine. It has been shown that using drawing primitives, such as triangle fans or strips, dramatically reduces the amount of information. Multiresolution Triangle Strips (MTS) uses the connectivity information to represent a mesh as a set of multiresolution triangles strips. These strips are the basis of both the storage and rendering stages. They allow the efficient management of a wide range of levels of detail. In this paper, we have taken advantage of the coherence property betwee…

Computer scienceComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISIONTriangulation (social science)Progressive meshesSTRIPSComputer Science::Computational GeometryTriangle fanRendering (computer graphics)law.inventionComputer graphicsComputer Science::GraphicsMesh generationlawComputer graphics (images)Triangle meshPolygonPolygon meshComputingMethodologies_COMPUTERGRAPHICS
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