A survey of cast shadow detection algorithms

  • Authors:

  • Nijad Al-Najdawi;Helmut E. Bez;Jyoti Singhai;Eran. A. Edirisinghe

  • Affiliations:

  • Department of Information Technology, Prince Abdullah Bin Ghazi Faculty for science and Information technology, Al-Balqa' Applied University, Amman, Jordan;Department of Computer Science, Loughborough University, UK;Department of Electronics and Communication Engineering, Maulana Azad National Institute of Technology, Bhopal, India;Department of Computer Science, Loughborough University, UK

  • Venue:
  • Pattern Recognition Letters
  • Year:
  • 2012

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Abstract

Cast shadows need careful consideration in the development of robust dynamic scene analysis systems. Cast shadow detection is critical for accurate object detection in video streams, and their misclassification can cause errors in segmentation and tracking. Many algorithms for shadow detection have been proposed in the literature; however a complete, comparative evaluation of existing approaches is lacking. This paper presents a comprehensive survey of shadow detection methods, organised in a novel taxonomy based on object/environment dependency and implementation domain. In addition a comparative evaluation of representative algorithms, based on quantitative and qualitative metrics is presented to evaluate the algorithms on a benchmark suite of indoor and outdoor video sequences.