Title
A Self-Projected Structured Light System For Fast Three-Dimensional Shape Inspection
Abstract
In this paper, we propose a self-projected structured light method that can reduce the number of projections for fast three-dimensional (3D) shape inspection even when there are large height differences in the measured 3D scene. In our method, multiple curved-stripe patterns generated by a reference 3D shape are projected onto the measured 3D scene, and 3D shapes can be obtained by processing multiple straight-stripe-like patterns projected in the camera view. Compared with the straight-stripe projections in most structured light methods, our self-projected structured light method can reduce the number of curved-stripe projections by facilitating fast processing and accurate acquisition of 3D shapes when a reference 3D shape is provided prior. We implemented our proposed method on a GPU-based high-frame-rate (HFR) structured light system that can obtain and process 512 x 512 depth images in real time at 500 fps, synchronized with an HFR projector. The effectiveness of our self-projected light system was demonstrated by means of several real-time experimental results measured at 500 fps.
Year
DOI
Venue
2015
10.2316/Journal.206.2015.5.206-4272
INTERNATIONAL JOURNAL OF ROBOTICS & AUTOMATION
Keywords
Field
DocType
Structured light, high-speed vision, DLP projector, real-time 3D scanner, GPU, shape inspection
Structured light,Engineering drawing,Automated X-ray inspection,Control engineering,Engineering
Journal
Volume
Issue
ISSN
30
5
0826-8185
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Hao Gao1101.75
Tadayoshi Aoyama26928.58
Takeshi Takaki322238.04
Idaku Ishii435564.37