Computer Science ›› 2015, Vol. 42 ›› Issue (2): 283-286.doi: 10.11896/j.issn.1002-137X.2015.02.060

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Hierarchical Subtraction Combining Phong Model for Foreground Detection in Sudden Illumination Changes Scenes

CAO Qian-xia, LUO Da-yong and WANG Zheng-wu   

  • Online:2018-11-14 Published:2018-11-14

Abstract: To solve the problems of sudden illumination changes and non-stationary background disturbance during foreground detection,a foreground detection method combining block-level and pixel-level hierarchical background subtraction with Phong model was presented.First,the foreground areas are quickly detected and non-stationary background is effectively dealed with by using block-level Sigma-delta background subtraction algorithm.Then,the coarse targets are extracted from the foreground areas by using Phong model to deal with sudden illumination changes.Finally,the coarse targets are executed for pixel-level foreground refining operation and the background is updated by using pixel-level Sigma-delta algorithm.Experiments show that the method can achieve robust foreground detection in scenes with sudden illumination changes and non-stationary background.

Key words: Foreground detection,Hierarchical subtraction,Illumination changes,Sigma-delta filter,Phong model

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