Abstract
Many sensors like the laser range finder, stereo vision cameras which help in building a depth perception of the world around it in 3D are very costly. Here I present the designs and prototypes of few 3D perception sensors which have been built low cost using components off the shelf. These perception sensors use structured infrared light projection. The design is miniature compared to other 3D sensors like LIDAR, Laser scanner and Time of flight cameras.
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