NDLI: A motion region estimation technique for Web camera application

Content Provider	IEEE Xplore Digital Library
Author	Koay, S.Y. Ramli, A.R. Lew, Y.P. Prakash, V. Ali, R.
Copyright Year	2002
Description	Author affiliation: Dept. of Comput. & Commun. Svslem Eng., Universiti Putra Malaysia, Selangor, Malaysia (Koay, S.Y.; Ramli, A.R.; Lew, Y.P.; Prakash, V.; Ali, R.)
Abstract	This paper presents the steps involved in processing the output image obtained from image subtraction. A Web camera or Web cam is used as a video clip capture device and MATLAB version 6.01 with Image Processing Toolbox is used as the analysis software. Image frames extracted from the video clips undergo image subtraction for motion detection purposes. The continuous steps presented in this paper are thresholding, noise removal and motion region estimation. Thresholding determines the areas of output images (from subtraction) consisting of pixels with values lying within the threshold value range. Threshold value also indicates the sensitivity of motion to detection. The image still contains a small amount of noise after thresholding. Noise is removed using a median filtering method. Motion region estimation is done by executing an AND or OR operation on two subtracted images from three successive frames. Both the output image from AND and OR operations will estimate the motion region in a different time frame.
Starting Page	352
Ending Page	355
File Size	307052
Page Count	4
File Format	PDF
ISBN	0780375653
DOI	10.1109/SCORED.2002.1033130
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-07-17
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image analysis Filtering Motion estimation Image processing Cameras Motion detection Application software MATLAB Software tools Pixel
Content Type	Text
Resource Type	Article

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