Traffic flow estimation and vehicle‐type classification using vision‐based spatial–temporal profile analysis

Vision‐based traffic surveillance plays an important role in traffic management. However, outdoor illuminations, the cast shadows and vehicle variations often create problems for video analysis and processing. Thus, the authors propose a real‐time cost‐effective traffic monitoring system that can re...

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Main Authors: Mau‐Tsuen Yang, Rang‐Kai Jhang, Jia‐Sheng Hou
Format: Article
Language:English
Published: Wiley 2013-10-01
Series:IET Computer Vision
Subjects:
Online Access:https://doi.org/10.1049/iet-cvi.2012.0185
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author Mau‐Tsuen Yang
Rang‐Kai Jhang
Jia‐Sheng Hou
author_facet Mau‐Tsuen Yang
Rang‐Kai Jhang
Jia‐Sheng Hou
author_sort Mau‐Tsuen Yang
collection DOAJ
description Vision‐based traffic surveillance plays an important role in traffic management. However, outdoor illuminations, the cast shadows and vehicle variations often create problems for video analysis and processing. Thus, the authors propose a real‐time cost‐effective traffic monitoring system that can reliably perform traffic flow estimation and vehicle classification at the same time. First, the foreground is extracted using a pixel‐wise weighting list that models the dynamic background. Shadows are discriminated utilising colour and edge invariants. Second, the foreground on a specified check‐line is then collected over time to form a spatial–temporal profile image. Third, the traffic flow is estimated by counting the number of connected components in the profile image. Finally, the vehicle type is classified according to the size of the foreground mask region. In addition, several traffic measures, including traffic velocity, flow, occupancy and density, are estimated based on the analysis of the segmentation. The availability and reliability of these traffic measures provides critical information for public transportation monitoring and intelligent traffic control. Since the proposed method only process a small area close to the check‐line to collect the spatial–temporal profile for analysis, the complete system is much more efficient than existing visual traffic flow estimation methods.
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spelling doaj.art-2c8d7fa6366c48f7b28cb190da72a5bc2023-09-15T07:13:27ZengWileyIET Computer Vision1751-96321751-96402013-10-017539440410.1049/iet-cvi.2012.0185Traffic flow estimation and vehicle‐type classification using vision‐based spatial–temporal profile analysisMau‐Tsuen Yang0Rang‐Kai Jhang1Jia‐Sheng Hou2Department of Computer Science and Information EngineeringNational Dong‐Hwa UniversityTaiwanDepartment of Computer Science and Information EngineeringNational Dong‐Hwa UniversityTaiwanDepartment of Computer Science and Information EngineeringNational Dong‐Hwa UniversityTaiwanVision‐based traffic surveillance plays an important role in traffic management. However, outdoor illuminations, the cast shadows and vehicle variations often create problems for video analysis and processing. Thus, the authors propose a real‐time cost‐effective traffic monitoring system that can reliably perform traffic flow estimation and vehicle classification at the same time. First, the foreground is extracted using a pixel‐wise weighting list that models the dynamic background. Shadows are discriminated utilising colour and edge invariants. Second, the foreground on a specified check‐line is then collected over time to form a spatial–temporal profile image. Third, the traffic flow is estimated by counting the number of connected components in the profile image. Finally, the vehicle type is classified according to the size of the foreground mask region. In addition, several traffic measures, including traffic velocity, flow, occupancy and density, are estimated based on the analysis of the segmentation. The availability and reliability of these traffic measures provides critical information for public transportation monitoring and intelligent traffic control. Since the proposed method only process a small area close to the check‐line to collect the spatial–temporal profile for analysis, the complete system is much more efficient than existing visual traffic flow estimation methods.https://doi.org/10.1049/iet-cvi.2012.0185traffic flow estimationvehicle-type classificationvision-based spatial–temporal profile analysisvision-based traffic surveillancetraffic managementoutdoor illumination
spellingShingle Mau‐Tsuen Yang
Rang‐Kai Jhang
Jia‐Sheng Hou
Traffic flow estimation and vehicle‐type classification using vision‐based spatial–temporal profile analysis
IET Computer Vision
traffic flow estimation
vehicle-type classification
vision-based spatial–temporal profile analysis
vision-based traffic surveillance
traffic management
outdoor illumination
title Traffic flow estimation and vehicle‐type classification using vision‐based spatial–temporal profile analysis
title_full Traffic flow estimation and vehicle‐type classification using vision‐based spatial–temporal profile analysis
title_fullStr Traffic flow estimation and vehicle‐type classification using vision‐based spatial–temporal profile analysis
title_full_unstemmed Traffic flow estimation and vehicle‐type classification using vision‐based spatial–temporal profile analysis
title_short Traffic flow estimation and vehicle‐type classification using vision‐based spatial–temporal profile analysis
title_sort traffic flow estimation and vehicle type classification using vision based spatial temporal profile analysis
topic traffic flow estimation
vehicle-type classification
vision-based spatial–temporal profile analysis
vision-based traffic surveillance
traffic management
outdoor illumination
url https://doi.org/10.1049/iet-cvi.2012.0185
work_keys_str_mv AT mautsuenyang trafficflowestimationandvehicletypeclassificationusingvisionbasedspatialtemporalprofileanalysis
AT rangkaijhang trafficflowestimationandvehicletypeclassificationusingvisionbasedspatialtemporalprofileanalysis
AT jiashenghou trafficflowestimationandvehicletypeclassificationusingvisionbasedspatialtemporalprofileanalysis