Next Article in Journal
A Robust High-Accuracy Ultrasound Indoor Positioning System Based on a Wireless Sensor Network
Next Article in Special Issue
Monocular Visual-Inertial SLAM: Continuous Preintegration and Reliable Initialization
Previous Article in Journal
Efficient Graph-Based Resource Allocation Scheme Using Maximal Independent Set for Randomly- Deployed Small Star Networks
Previous Article in Special Issue
Global Calibration of Multi-Cameras Based on Refractive Projection and Ray Tracing
Article Menu
Issue 11 (November) cover image

Export Article

Open AccessArticle
Sensors 2017, 17(11), 2558; https://doi.org/10.3390/s17112558

Single-Shot Dense Depth Sensing with Color Sequence Coded Fringe Pattern

School of Electronic Engineering, Xidian University, Xi’an 710071, China
*
Author to whom correspondence should be addressed.
Academic Editor: Andreas Kolb
Received: 19 August 2017 / Revised: 28 October 2017 / Accepted: 31 October 2017 / Published: 6 November 2017
(This article belongs to the Special Issue Imaging Depth Sensors—Sensors, Algorithms and Applications)
View Full-Text   |   Download PDF [3935 KB, uploaded 7 November 2017]   |  

Abstract

A single-shot structured light method is widely used to acquire dense and accurate depth maps for dynamic scenes. In this paper, we propose a color sequence coded fringe depth sensing method. To overcome the phase unwrapping problem encountered in phase-based methods, the color-coded sequence information is embedded into the phase information. We adopt the color-encoded De Bruijn sequence to denote the period of the phase information and assign the sequence into two channels of the pattern, while the third channel is used to code the phase information. Benefiting from this coding strategy, the phase information distributed in multiple channels can improve the quality of the phase intensity by channel overlay, which results in precise phase estimation. Meanwhile, the wrapped phase period assists the sequence decoding to obtain a precise period order. To evaluate the performance of the proposed method, an experimental platform is established. Quantitative and qualitative experiments demonstrate that the proposed method generates a higher precision depth, as compared to a Kinect and larger resolution ToF (Time of Flight) camera. View Full-Text
Keywords: depth sensing; structured light illumination; phase unwrapping depth sensing; structured light illumination; phase unwrapping
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Li, F.; Zhang, B.; Shi, G.; Niu, Y.; Li, R.; Yang, L.; Xie, X. Single-Shot Dense Depth Sensing with Color Sequence Coded Fringe Pattern. Sensors 2017, 17, 2558.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top