The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XL-1/W5
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-1/W5, 763–767, 2015
https://doi.org/10.5194/isprsarchives-XL-1-W5-763-2015
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XL-1/W5, 763–767, 2015
https://doi.org/10.5194/isprsarchives-XL-1-W5-763-2015

  11 Dec 2015

11 Dec 2015

A PHOTOGRAMMETRIC APPRAOCH FOR AUTOMATIC TRAFFIC ASSESSMENT USING CONVENTIONAL CCTV CAMERA

N. Zarrinpanjeh1, F. Dadrassjavan2, and H. Fattahi3 N. Zarrinpanjeh et al.
  • 1Islamic Azad University of Qazvin, Qazvin, Iran
  • 2University of Tehran, Tehran, Iran
  • 3Tehran Traffic Control Company, Tehran, Iran

Keywords: Photogrammetry, Automatic Traffic Assessment, CCTV Camera

Abstract. One of the most practical tools for urban traffic monitoring is CCTV imaging which is widely used for traffic map generation and updating through human surveillance. But due to the expansion of urban road network and the use of huge number of CCTV cameras, visual inspection and updating of traffic sometimes seems to be ineffective and time consuming and therefore not providing real-time robust update. In this paper a method for vehicle detection accounting and speed estimation is proposed to give a more automated solution for traffic assessment. Through removing violating objects and detection of vehicles via morphological filtering and also classification of moving objects at the scene vehicles are counted and traffic speed is estimated. The proposed method is developed and tested using two datasets and evaluation values are computed. The results show that the successfulness of the algorithm decreases by about 12 % due to decrease in illumination quality of imagery.