tailieunhanh - Báo cáo " Toward building 3D model of Vietnam National University, Hanoi (VNU) from video sequences "

3D models are getting more and more attention from the research community. The application potential of 3D models is enormous, especially in creating virtual environments. In Vietnam National University - Hanoi, there is a need for a test-bed 3D environment for research in virtual reality and advance learning techniques. This need raises a very good motivation for the research of 3D reconstruction. In this paper, we present our work toward the creating of a 3D model of Vietnam National University - Hanoi automatically from image sequences. We use the reconstruction process proposed in [1], which consists of four. | VNU Journal of Science Mathematics - Physics 23 2007 210-220 Toward building 3D model of Vietnam National University Hanoi VNU from video sequences Trung Kien Dang The Duy Bui College of Technology VNU 144 Xuan Thuy Cau Giay Hanoi Vietnam Received 9 Jun 2006 received in revised form 30 Jun 2006 Abstract. 3D models are getting more and more attention from the research community. The application potential of 3D models is enormous especially in creating virtual environments. In Vietnam National University - Hanoi there is a need for a test-bed 3D environment for research in virtual reality and advance learning techniques. This need raises a very good motivation for the research of 3D reconstruction. In this paper we present our work toward the creating of a 3D model of Vietnam National University - Hanoi automatically from image sequences. We use the reconstruction process proposed in 1 which consists of four main steps Feature Detection and Matching Structure and Motion Recovery Stereo Mapping and Modeling. Moreover we develop a new technique for the structure update step. By applying proper transformation on the input of the step we have produced a new simple but effective technique which has not been considered before in the literature. 1. Introduction Recently 3D models are getting more and more attention from the research community. The application potential of 3D models is enormous especially in creating virtual environments. A 3D model of a museum allows the user to visit the museum virtually just by sitting in front of the computer and clicking mouse. A security officer of a university can check the classroom virtually through the computer. This is the result of mixing real information from security camera with a 3D model. In order to build 3D models the tradition is normally used in which technicians builds the 3D models manually and then apply the texture on these models. This method requires enormous manual effort. With five technicians it may require three