ToF cameras for active vision in robotics

ToF cameras are now a mature technology that is widely being adopted to provide sensory input to robotic applications. Depending on the nature of the objects to be perceived and the viewing distance, we distinguish two groups of applications: those requiring to capture the whole scene and those cent...

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Detalles Bibliográficos
Autores: Alenyà Ribas, Guillem|||0000-0002-6018-154X, Foix Salmerón, Sergi|||0000-0001-9249-6696, Torras, Carme|||0000-0002-2933-398X
Tipo de recurso: artículo
Fecha de publicación:2014
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/27174
Acceso en línea:https://hdl.handle.net/2117/27174
https://dx.doi.org/10.1016/j.sna.2014.07.014
Access Level:acceso abierto
Palabra clave:computer vision
robots
Classificació INSPEC::Pattern recognition::Computer vision
Àrees temàtiques de la UPC::Informàtica::Robòtica
Descripción
Sumario:ToF cameras are now a mature technology that is widely being adopted to provide sensory input to robotic applications. Depending on the nature of the objects to be perceived and the viewing distance, we distinguish two groups of applications: those requiring to capture the whole scene and those centered on an object. It will be demonstrated that it is in this last group of applications, in which the robot has to locate and possibly manipulate an object, where the distinctive characteristics of ToF cameras can be better exploited. After presenting the physical sensor features and the calibration requirements of such cameras, we review some representative works highlighting for each one which of the distinctive ToF characteristics have been more essential. Even if at low resolution, the acquisition of 3D images at frame-rate is one of the most important features, as it enables quick background/foreground segmentation. A common use is in combination with classical color cameras. We present three developed applications, using a mobile robot and a robotic arm, to exemplify with real images some of the stated advantages.