[1] He Tiejun, Zhang Ning, Gao Zhaohui, Huang Wei, et al. Vehicle detection method for expressway by MPEG compressed domain [J]. Journal of Southeast University (English Edition), 2008, 24 (4): 522-527. [doi:10.3969/j.issn.1003-7985.2008.04.025]

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Vehicle detection method for expressway by MPEG compressed domain()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

24

Issue:

2008 4

Page:

522-527

Research Field:

Computer Science and Engineering

Publishing date:

2008-12-30

Info

Title:

Vehicle detection method for expressway by MPEG compressed domain

Author(s):

He Tiejun;  Zhang Ning;  Gao Zhaohui;  Huang Wei

ITS Research Center, Southeast University, Nanjing 210096, China

Keywords:

vehicle detection;  compressed domain;  discrete cosine transform(DCT)coefficient;  motion vector

PACS:

TP391.41

DOI:

10.3969/j.issn.1003-7985.2008.04.025

Abstract:

A method which extracts traffic information from an MPEG-2 compressed video is proposed.According to the features of vehicle motion, the motion vector of a macro-block is used to detect moving vehicles in daytime, and a filter algorithm for removing noises of motion vectors is given.As the brightness of the headlights is higher than that of the background in night images, discrete cosine transform(DCT)coefficient of image block is used to detect headlights of vehicles at night, and an algorithm for calculating the DCT coefficients of P-frames is introduced.In order to prevent moving objects outside the expressway and video shot changes from disturbing the detection, a driveway location method and a video-shot-change detection algorithm are suggested.The detection rate is 97.4% in daytime and 95.4% in nighttime by this method.The results prove that this vehicle detection method is effective.

References:

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Memo

Memo:

Biography: He Tiejun(1974—), male, doctor, lecturer, hetiejun56826@yahoo.com.cn.
Foundation items: The Cultivation Fund of the Key Scientific and Technical Innovation Project of Higher Education of Ministry of Education(No.705020), the Natural Science Foundation of Jiangsu Province(No.BK2004077).
Citation: He Tiejun, Zhang Ning, Gao Zhaohui, et al.Vehicle detection method for expressway by MPEG compressed domain[J].Journal of Southeast University(English Edition), 2008, 24(4):522-527.

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