Efficient Semantic Enrichment Process for Human Trajectories in Surveillance Videos

Fangzhou Bao, Xiaoyu Sun, Weilan Luo, Xintao Liu, G. Ji, Bin Zhao

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Nowadays, it becomes very convenient to collect large-scale videos that record trajectories of human mobility behavior in various situations in cities, due to the increasing availability of surveillance camera. Obviously, surveillance videos became a new data source of spatiotemporal trajectories. However, a typical trajectory semantic enrichment process receives as input spatiotemporal trajectories. The process methods cannot be applied to video data directly. In this paper, we propose a semantic enrichment process framework for human trajectories in surveillance videos. It includes trajectory identification in videos, trajectory transformation, sub-traj ectory segmentation, segment annotation. We can derive semantic trajectories from surveillance videos through the four phases. Having observed the common occurrence of the similarities between individual trajectories, we propose a grid index-based method to search similar pre-annotated sub-trajectory segments in pixel space for retrieving semantic trajectories in order to enhance the performance of this approach. Finally, we demonstrate the effectiveness and efficiency of our proposed approach by using a real world data set.

Original languageEnglish
Title of host publicationBESC 2019 - 6th International Conference on Behavioral, Economic and Socio-Cultural Computing, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728147628
DOIs
Publication statusPublished - Oct 2019
Event6th International Conference on Behavioral, Economic and Socio-Cultural Computing, BESC 2019 - Beijing, China
Duration: 28 Oct 201930 Oct 2019

Publication series

NameBESC 2019 - 6th International Conference on Behavioral, Economic and Socio-Cultural Computing, Proceedings

Conference

Conference6th International Conference on Behavioral, Economic and Socio-Cultural Computing, BESC 2019
Country/TerritoryChina
CityBeijing
Period28/10/1930/10/19

Keywords

  • annotation
  • semantic trajectory
  • video

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems and Management
  • Economics, Econometrics and Finance (miscellaneous)
  • Control and Optimization
  • Social Sciences (miscellaneous)
  • Communication
  • Cultural Studies

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