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http://dx.doi.org/10.9717/kmms.2014.17.4.420

An Effective Moving Cast Shadow Removal in Gray Level Video for Intelligent Visual Surveillance  

Nguyen, Thanh Binh (School of Electronic Engineering, Soongsil University)
Chung, Sun-Tae (School of Electronic Engineering, Soongsil University)
Cho, Seongwon (Dept. of Electrical Engineering, Hongik University)
Publication Information
Journal of Korea Multimedia Society / v.17, no.4, 2014 , pp. 420-432 More about this Journal
Abstract
In detection of moving objects from video sequences, an essential process for intelligent visual surveillance, the cast shadows accompanying moving objects are different from background so that they may be easily extracted as foreground object blobs, which causes errors in localization, segmentation, tracking and classification of objects. Most of the previous research results about moving cast shadow detection and removal usually utilize color information about objects and scenes. In this paper, we proposes a novel cast shadow removal method of moving objects in gray level video data for visual surveillance application. The proposed method utilizes observations about edge patterns in the shadow region in the current frame and the corresponding region in the background scene, and applies Laplacian edge detector to the blob regions in the current frame and the corresponding regions in the background scene. Then, the product of the outcomes of application determines moving object blob pixels from the blob pixels in the foreground mask. The minimal rectangle regions containing all blob pixles classified as moving object pixels are extracted. The proposed method is simple but turns out practically very effective for Adative Gaussian Mixture Model-based object detection of intelligent visual surveillance applications, which is verified through experiments.
Keywords
Cast Shadow Removal; Moving Object Detection; Intelligent Visual Surveillance; Blob Segmentation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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