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ToF cameras for active vision in robotics

AutorAlenyà, Guillem ; Foix, Sergi ; Torras, Carme
Palabras claveComplex-shape objects
Outdoor imaging
Depth calibration
3D perception for manipulation
Time-of-Flight cameras
Fecha de publicación2014
CitaciónSensors and Actuators A: Physical 218: 10-22 (2014)
ResumenToF 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.
Versión del editorhttp://dx.doi.org/10.1016/j.sna.2014.07.014
Identificadoresissn: 0924-4247
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