Dual Imager Core Chip with 24.8 Rangemaps/s 3-D and 58 fps 2-D Simultaneous Capture Capability

Shingo MANDAI  Toru NAKURA  Makoto IKEDA  Kunihiro ASADA 

Publication
IEICE TRANSACTIONS on Electronics  Vol.E92-C  No.6  pp.798-805
Publication Date: 2009/06/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Analog Circuits and Related SoC Integration Technologies)
Category: 
Keyword: 
image sensor,  light-section method,  stereo-matching,  dual imager core,  multi functional range finder, 

Full Text: PDF(1.5MB)

Summary: 
This paper presents a multi functional range finder employing dual imager core on a single chip. Each imager core has functionalities of 2-D imaging and 3-D capture using the light section method with combinations of the dual imager core. The presented chip achieves, 2-D imaging mode, 3-D capture mode with the conventional light-section method, high-speed 3-D capture mode with the stereo matching mode, and 2-D and 3-D simultaneous capture mode. We demonstrate 58 fps 2-D imaging with 8 bit gray scale, and 24.8 rangemaps/s 3-D range-finder with the maximum range error of 1.619 mm and the standard deviation of 0.385 mm at 700 mm.