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Sensors 2017, 17(4), 843; doi:10.3390/s17040843

Random Finite Set Based Bayesian Filtering with OpenCL in a Heterogeneous Platform

1
Robotics and Embedded Systems, Technische Universität München, 80333 München, Germany
2
School of Data and Computer Science, Sun Yat-sen University, Xiaoguwei Island, Panyu District, Guangzhou 510006, China
3
School of Marine Science and Technology, Northwestern Polytechnical University, 127, Youyi West Road, Xi’an 710072, China
4
Integrated Systems, Technische Universität München, 80333 München, Germany
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editors: Xue-Bo Jin, Shuli Sun, Hong Wei and Feng-Bao Yang
Received: 27 February 2017 / Revised: 5 April 2017 / Accepted: 10 April 2017 / Published: 12 April 2017
View Full-Text   |   Download PDF [402 KB, uploaded 12 April 2017]   |  

Abstract

While most filtering approaches based on random finite sets have focused on improving performance, in this paper, we argue that computation times are very important in order to enable real-time applications such as pedestrian detection. Towards this goal, this paper investigates the use of OpenCL to accelerate the computation of random finite set-based Bayesian filtering in a heterogeneous system. In detail, we developed an efficient and fully-functional pedestrian-tracking system implementation, which can run under real-time constraints, meanwhile offering decent tracking accuracy. An extensive evaluation analysis was carried out to ensure the fulfillment of sufficient accuracy requirements. This was followed by extensive profiling analysis to spot the potential bottlenecks in terms of execution performance, which were then targeted to come up with an OpenCL accelerated application. Video-throughput improvements from roughly 15 fps to 100 fps (6×) were observed on average while processing typical MOT benchmark videos. Moreover, the worst-case frame processing yielded an 18× advantage from nearly 2 fps to 36 fps, thereby comfortably meeting the real-time constraints. Our implementation is released as open-source code. View Full-Text
Keywords: random finite set Bayesian filtering; OpenCL; real-time execution random finite set Bayesian filtering; OpenCL; real-time execution
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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).

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MDPI and ACS Style

Hu, B.; Sharif, U.; Koner, R.; Chen, G.; Huang, K.; Zhang, F.; Stechele, W.; Knoll, A. Random Finite Set Based Bayesian Filtering with OpenCL in a Heterogeneous Platform. Sensors 2017, 17, 843.

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