Real-Time and Robust Compressive Background Subtraction for Embedded Camera Networks

Shen, Yiran, Hu, Wen, Yang, Mingrui, Liu, Junbin, Wei, Bo, Lucey, Simon and Chou, Chun Tung (2016) Real-Time and Robust Compressive Background Subtraction for Embedded Camera Networks. IEEE Transactions on Mobile Computing, 15 (2). pp. 406-418. ISSN 1536-1233

Shen et al - Real-Time and Robust Compressive Background Subtraction for Embedded Camera Networks AAM.pdf - Accepted Version

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Real-time target tracking is an important service provided by embedded camera networks. The first step in target tracking is to extract the moving targets from the video frames, which can be realised by using background subtraction. For a background subtraction method to be useful in embedded camera networks, it must be both accurate and computationally efficient because of the resource constraints on embedded platforms. This makes many traditional background subtraction algorithms unsuitable for embedded platforms because they use complex statistical models to handle subtle illumination changes. These models make them accurate but the computational requirement of these complex models is often too high for embedded platforms. In this paper, we propose a new background subtraction method which is both accurate and computationally efficient. We propose a baseline version which uses luminance only and then extend it to use colour information. The key idea is to use random projection matrics to reduce the dimensionality of the data while retaining most of the information. By using multiple datasets, we show that the accuracy of our proposed background subtraction method is comparable to that of the traditional background subtraction methods. Moreover, to show the computational efficiency of our methods is not platform specific, we implement it on various platforms. The real implementation shows that our proposed method is consistently better and is up to six times faster, and consume significantly less resources than the conventional approaches. Finally, we demonstrated the feasibility of the proposed method by the implementation and evaluation of an end-to-end real-time embedded camera network target tracking application.

Item Type: Article
Uncontrolled Keywords: Object Tracking, Real-time Performance, Embedded Camera Networks, Background Subtraction, Compressive Sensing, Gaussian Mixture Models
Subjects: G400 Computer Science
Department: Faculties > Engineering and Environment > Computer and Information Sciences
Depositing User: Paul Burns
Date Deposited: 08 Nov 2018 16:02
Last Modified: 31 Jul 2021 13:35

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