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Báo cáo hóa học: " Research Article Iterative Object Localization Algorithm Using Visual Images with a Reference Coordinate"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Iterative Object Localization Algorithm Using Visual Images with a Reference Coordinate | Hindawi Publishing Corporation EURASIP Journal on Image and Video Processing Volume 2008 Article ID 256896 16 pages doi 10.1155 2008 256896 Research Article Iterative Object Localization Algorithm Using Visual Images with a Reference Coordinate Kyoung-Su Park 1 Jinseok Lee 1 Milutin StanaCeviC 1 Sangjin Hong 1 and We-Duke Cho2 1 Mobile Systems Design Laboratory Department of Electrical and Computer Engineering Stony Brook University Stony Brook NY 11794 USA 2 Department of Electronics Engineering College of Information Technology Ajou University Suwon 443-749 South Korea Correspondence should be addressed to We-Duke Cho chowd@ajou.ac.kr Received 29 July 2007 Revised 11 March 2008 Accepted 4 July 2008 Recommended by Carlo Regazzoni We present a simplified algorithm for localizing an object using multiple visual images that are obtained from widely used digital imaging devices. We use a parallel projection model which supports both zooming and panning of the imaging devices. Our proposed algorithm is based on a virtual viewable plane for creating a relationship between an object position and a reference coordinate. The reference point is obtained from a rough estimate which may be obtained from the preestimation process. The algorithm minimizes localization error through the iterative process with relatively low-computational complexity. In addition nonlinearity distortion of the digital image devices is compensated during the iterative process. Finally the performances of several scenarios are evaluated and analyzed in both indoor and outdoor environments. Copyright 2008 Kyoung-Su Park et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. INTRODUCTION The object localization is one of the key operations in many tracking applications such as surveillance monitoring and tracking 1-8 .In these tracking .