DocumentCode :
64967
Title :
EasiSee: Real-Time Vehicle Classification and Counting via Low-Cost Collaborative Sensing
Author :
Rui Wang ; Lei Zhang ; Kejiang Xiao ; Rongli Sun ; Li Cui
Author_Institution :
Inst. of Comput. Technol., Beijing, China
Volume :
15
Issue :
1
fYear :
2014
fDate :
Feb. 2014
Firstpage :
414
Lastpage :
424
Abstract :
In the field of traffic-information acquisition, one pervasive solution is to use wireless sensor networks (WSNs) to realize vehicle classification and counting. By adopting heterogeneous sensors in a WSN, we can explore the potential of using complementary physical information to perform more complicated sensing computation. However, the collaboration among heterogeneous sensors, such as the collaborative sensing mechanism (CSM), is not well studied in current state-of-the-art research. In this paper, we design and implement EasiSee, a real-time vehicle classification and counting system based on WSNs. Our contributions are as follows. First, we propose a CSM, which coordinates the power-hungry camera sensor and the power-efficient magnetic sensors, reducing the overall system energy consumption and maximizing system lifetime. Second, we propose a robust vehicle image-processing algorithm, i.e., a low-cost image processing algorithm (LIPA). LIPA reduces environment noise and interference with low computation complexity. In the verification section, the vehicle detection accuracy turned out to be 95.31%, which pave the way for CSM. The time of image processing is around 200 ms, which indicates that our LIPA is computationally economical. With the overall energy consumption reduced, EasiSee achieves classification accuracy of 93%. Based on these experiments and analysis, we conclude that EasiSee is a practical and low-cost affordable solution for traffic-information acquisition.
Keywords :
cameras; image processing; magnetic sensors; power consumption; real-time systems; road traffic; road vehicles; wireless sensor networks; CSM; EasiSee; LIPA; WSN; collaborative sensing mechanism; complementary physical information; computation complexity; energy consumption; environment noise; heterogeneous sensors; low-cost collaborative sensing; low-cost image processing; power-efficient magnetic sensors; power-hungry camera sensor; real-time vehicle classification; real-time vehicle counting; traffic-information acquisition; wireless sensor networks; Cameras; Image sensors; Magnetic sensors; Vehicle detection; Vehicles; Wireless sensor networks; Collaborative sensing; low cost; real time; wireless sensor networks (WSN);
fLanguage :
English
Journal_Title :
Intelligent Transportation Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
1524-9050
Type :
jour
DOI :
10.1109/TITS.2013.2281760
Filename :
6645460
Link To Document :
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