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Open AccessArticle

Laser Ranging-Assisted Binocular Visual Sensor Tracking System

1
School of Mechanical and Precision Instrument Engineering, Xi’an University of Technology, Xi’an 710048, China
2
Beijing Aerospace Times Optical-electronic Technology CO, Ltd., China Aerospace Science and Technology Corp, Beijing 100094, China
3
School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(3), 688; https://doi.org/10.3390/s20030688
Received: 25 December 2019 / Revised: 16 January 2020 / Accepted: 22 January 2020 / Published: 27 January 2020
(This article belongs to the Special Issue Visual Sensor Networks for Object Detection and Tracking)
Aimed at improving the low measurement accuracy of the binocular vision sensor along the optical axis in the process of target tracking, we proposed a method for auxiliary correction using a laser-ranging sensor in this paper. In the process of system measurement, limited to the mechanical performance of the two-dimensional turntable, the measurement value of a laser-ranging sensor is lagged. In this paper, the lag information is updated directly to solve the time delay. Moreover, in order to give full play to the advantages of binocular vision sensors and laser-ranging sensors in target tracking, federated filtering is used to improve the information utilization and measurement accuracy and to solve the estimated correlation. The experimental results show that the real-time and measurement accuracy of the laser ranging-assisted binocular visual-tracking system is improved by the direct update algorithm and the federal filtering algorithm. The results of this paper are significant for binocular vision sensors and laser-ranging sensors in engineering applications involving target tracking systems. View Full-Text
Keywords: binocular vision; laser ranging sensor; target tracking; information fusion; time delay binocular vision; laser ranging sensor; target tracking; information fusion; time delay
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MDPI and ACS Style

Wang, Q.; Zhang, Y.; Shi, W.; Nie, M. Laser Ranging-Assisted Binocular Visual Sensor Tracking System. Sensors 2020, 20, 688.

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