A 134-Pixel CMOS Sensor for Combined Time-of-Flight and Optical Triangulation 3-D Imaging

摘要

This paper describes the design and characterization of a 134-pixel linear array sensor for three-dimensional measurements based on both multiple-pulse indirect-time-of-flight (ITOF) and optical triangulation (OT) techniques. In OT mode, a winner-take-all (WTA) stage allows for a fast localization of the spot position along the pixel array so that only useful pixels are selectively read out, for a maximum operation speed of 131 kVoxel/s.