tailieunhanh - Báo cáo hóa học: " Research Article Robust Real-Time 3D Object Tracking with Interfering Background Visual Projections?;

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 Robust Real-Time 3D Object Tracking with Interfering Background Visual Projections | Hindawi Publishing Corporation EURASIP Journal on Image and Video Processing Volume 2008 Article ID 638073 14 pages doi 2008 638073 Research Article Robust Real-Time 3D Object Tracking with Interfering Background Visual Projections Huan Jin1 2 and Gang Qian1 3 1 Arts Media and Engineering Program Arizona State University Tempe AZ 85287 USA 2 Department of Computer Science and Engineering Arizona State University Tempe AZ 85287 USA 3 Department of Electrical Engineering Arizona State University Tempe AZ 85287 USA Correspondence should be addressed to Huan Jin Received 2 November 2007 Revised 8 March 2008 Accepted 9 May 2008 Recommended by Carlo Regazzoni This paper presents a robust real-time object tracking system for human computer interaction in mediated environments with interfering visual projection in the background. Two major contributions are made in our research to achieve robust object tracking. A reliable outlier rejection algorithm is developed using the epipolar and homography constraints to remove false candidates caused by interfering background projections and mismatches between cameras. To reliably integrate multiple estimates of the 3D object positions an efficient fusion algorithm based on mean shift is used. This fusion algorithm can also reduce tracking errors caused by partial occlusion of the object in some of the camera views. Experimental results obtained in real life scenarios demonstrate that the proposed system is able to achieve decent 3D object tracking performance in the presence of interfering background visual projection. Copyright 2008 H. Jin and G. Qian. 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 Movement-driven mediated environments attract increasing interests many interactive applications including mediated and interactive