2026-04-17T06:50:24Zhttps://recercat.cat/oai/request

oai:recercat.cat:10256/24692024-05-22T09:47:30Zcom_2072_452955com_2072_2054col_2072_452957

00925njm 22002777a 4500 dc Salvi, Joaquim author Mouaddib, El Mustapha author Batlle i Grabulosa, Joan author 1997 The absolute necessity of obtaining 3D information of structured and unknown environments in autonomous navigation reduce considerably the set of sensors that can be used. The necessity to know, at each time, the position of the mobile robot with respect to the scene is indispensable. Furthermore, this information must be obtained in the least computing time. Stereo vision is an attractive and widely used method, but, it is rather limited to make fast 3D surface maps, due to the correspondence problem. The spatial and temporal correspondence among images can be alleviated using a method based on structured light. This relationship can be directly found codifying the projected light; then each imaged region of the projected pattern carries the needed information to solve the correspondence problem. We present the most significant techniques, used in recent years, concerning the coded structured light method http://hdl.handle.net/10256/2469 Imatges -- Processament Robots mòbils Visió per ordinador Visualització tridimensional (Informàtica) Computer vision Image processing Mobile robots Three-dimensional display systems An overview of the advantages and constraints of coded pattern projection techniques for autonomous navigation