A 3D imager is presented capable of computing the depth map as well as the intensity scale of a given scene. The heart of the system is a two-dimensional array of single photon avalanche diodes fabricated in standard CMOS technology. The diodes exhibit low noise equivalent power, high dynamic range and superior linearity. The 3D imager achieves sub-millimetric precision at depth-of-field of a few meters. It operates using a standard LASER source pulsed at 50MHz with 40mW peak power and requires no mechanical scanning mechanisms or expensive optical equipment.
Jan Wienold, Geraldine Cai Ting Quek, Dong Hyun Kim
Edoardo Charbon, Claudio Bruschini, Arin Can Ülkü