报告题目: Quaternion Views of Nature
报告人： Andrew J. Hanson
Computer Science Department
Indiana University, Bloomington
报告时间：1月14日上午10：00
报告地点：紫金港校区图书信息中心B楼CAD&CG国家重点实验室402室
Abstract:
Quaternions provide an elegant geometric representation of the orientation of objects in 3D space. By exploiting the geometric properties of quaternions, we can make available at a single glance enormous amounts of information about the way collections of objects are positioned in space. We present examples of everyday phenomena involving rotating objects whose explanation is quite inaccessible unless we exploit quaternion visualization methods. By using quaternion techniques, we can begin to understand a wide range of puzzling phenomena, from the twisting of belts and the rotations of a beachball to the health of a shoulder joint and the structure of a protein. Throughout, we will emphasize interactive demonstrations and the relationship of quaternion visualization to fundamental questions of science.
Bio
Andrew J. Hanson
Computer Science Department
Indiana University, Bloomington, IN 47405
hansona@indiana.edu / hanson@cs.indiana.edu
http://www.cs.indiana.edu/~hanson />
Professional Preparation:
Harvard College, B.A. cum laude in Chemistry and Physics, 1966
Massachusetts Institute of Technology, Ph.D. in Theoretical Physics, 1971
Appointments:
Professor, Computer Science, Indiana University: 1996-present
Visiting Scientist, iMAGIS, Grenoble, France: sabbatical 1995-1996
Associate Professor, Computer Science, Indiana University: 1989-1995
Senior Computer Scientist, SRI International Articial Intelligence Center: 1980-1989
Publications:
1. A.J. Hanson, Chi-Wing Fu, and E.A. Wernert, Very Large Scale Visualization Methods for Astrophysical Data," in W. de Leeuw and R. van Liere, editors, Data Visualization 2000,pp. 115-124, 2000. Proceedings of the the Joint EUROGRAPHICS - IEEE TCVG Symposium on Visualization, May 29-31, 2000, Amsterdam, the Netherlands.
2. E.A. Wernert and A.J. Hanson, A Framework for Assisted Exploration with Collaboration," in Proceedings of IEEE Visualization '99, pp. 241-248, 1999.
3. A.J. Hanson and E.A. Wernert, Constrained 3D Navigation with 2D Controllers," in Proceedings of IEEE Visualization '97 , pp. 175-182, 1997.
4. A.J. Hanson and E. Wernert, Image-Based Rendering with Occlusions via Cubist Images,"in Proceedings of IEEE Visualization '98, pp. 327-334, 1998.
5. A.J. Hanson, Constrained Optimal Framings of Curves and Surfaces using Quaternion Gauss Maps," in Proceedings of IEEE Visualization '98, pp. 375-382, 1998.
报告人： Andrew J. Hanson
Computer Science Department
Indiana University, Bloomington
报告时间：1月14日上午10：00
报告地点：紫金港校区图书信息中心B楼CAD&CG国家重点实验室402室
Abstract:
Quaternions provide an elegant geometric representation of the orientation of objects in 3D space. By exploiting the geometric properties of quaternions, we can make available at a single glance enormous amounts of information about the way collections of objects are positioned in space. We present examples of everyday phenomena involving rotating objects whose explanation is quite inaccessible unless we exploit quaternion visualization methods. By using quaternion techniques, we can begin to understand a wide range of puzzling phenomena, from the twisting of belts and the rotations of a beachball to the health of a shoulder joint and the structure of a protein. Throughout, we will emphasize interactive demonstrations and the relationship of quaternion visualization to fundamental questions of science.
Bio
Andrew J. Hanson
Computer Science Department
Indiana University, Bloomington, IN 47405
hansona@indiana.edu / hanson@cs.indiana.edu
http://www.cs.indiana.edu/~hanson />
Professional Preparation:
Harvard College, B.A. cum laude in Chemistry and Physics, 1966
Massachusetts Institute of Technology, Ph.D. in Theoretical Physics, 1971
Appointments:
Professor, Computer Science, Indiana University: 1996-present
Visiting Scientist, iMAGIS, Grenoble, France: sabbatical 1995-1996
Associate Professor, Computer Science, Indiana University: 1989-1995
Senior Computer Scientist, SRI International Articial Intelligence Center: 1980-1989
Publications:
1. A.J. Hanson, Chi-Wing Fu, and E.A. Wernert, Very Large Scale Visualization Methods for Astrophysical Data," in W. de Leeuw and R. van Liere, editors, Data Visualization 2000,pp. 115-124, 2000. Proceedings of the the Joint EUROGRAPHICS - IEEE TCVG Symposium on Visualization, May 29-31, 2000, Amsterdam, the Netherlands.
2. E.A. Wernert and A.J. Hanson, A Framework for Assisted Exploration with Collaboration," in Proceedings of IEEE Visualization '99, pp. 241-248, 1999.
3. A.J. Hanson and E.A. Wernert, Constrained 3D Navigation with 2D Controllers," in Proceedings of IEEE Visualization '97 , pp. 175-182, 1997.
4. A.J. Hanson and E. Wernert, Image-Based Rendering with Occlusions via Cubist Images,"in Proceedings of IEEE Visualization '98, pp. 327-334, 1998.
5. A.J. Hanson, Constrained Optimal Framings of Curves and Surfaces using Quaternion Gauss Maps," in Proceedings of IEEE Visualization '98, pp. 375-382, 1998.
