The various institution anddevelopments in the field of computer graphics in Germany is discussed. The German Research Foundation( dFG), as recognition of research in computer graphics, sponsors a special interdiscip...
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The various institution anddevelopments in the field of computer graphics in Germany is discussed. The German Research Foundation( dFG), as recognition of research in computer graphics, sponsors a special interdisciplinary graduates study program on 3dimage analysis and synthesis at the University of Erlangen-Nuremburg. The German Association for Informatics, founded in 1983, brings together about 40 representatives from Universities, colleges and industry that co-ordinate activities form five subgroups specializing in foundations and systems, imaging and visualization, graphical user interfaces, simulation and animation, and geometric modeling. Several companies and forums working in the area of computer graphics are situated in darmstadt.
作者：
Sekita, IKurita, TOtsu, NAbdelmalek, NNElectrotechnical Laboratory
Tsukuba Japan 305 Ottawa
Ontario Canada Nabih Nessim Abdelmalek:received his B.S. degree in Electrical Engineering in 1951 and his B.S. degree in Mathematics in 1954
both from Cairo University Egypt and his Ph.D. degree in Theoretical Nuclear Physics in 1958 from Manchester University U.K. After 7 years in the Department of Mathematics on the Faculty of Engineering Cairo University he moved to Canada and became a member of the scientific staff at Bell Northern Research in Ottawa. After a period of 2 years he joined the National Research Council of Canada in Ottawa. His current interest is the application of numerical analysis techniques to the problem of image processing particularly image enhancement and restoration data compression pattern classification parameter estimation and 3D robot vision.
Thresholding techniques are fundamental for region segmentation of a gray level image. It is often realistic to assume that gray pixel levels are subject to a mixture of normal distributions. This paper points out pro...
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Thresholding techniques are fundamental for region segmentation of a gray level image. It is often realistic to assume that gray pixel levels are subject to a mixture of normal distributions. This paper points out problems caused by the underestimation of variances from a frequency distribution and solves the problems by transforming a frequency distribution into a piecewise-continuous distribution based on the maximum entropy criterion. This transformation improves conventional thresholding techniques. Experimental results showed the effectiveness of the transformation.
作者：
M. Michael Cohen Jr.Sven KreiborgDivision of Oral and Maxillofacial Pathology
Faculty of Dentistry and Department of Pediatrics Faculty of Medicine Dalhousie University Halifax Nova Scotia Canada Department of Pediatric Dentistry
School of Dentistry Faculty of Health Sciences Research and Development Laboratory for 3D Image Processing and Reconstruction Rigshospital and School of Dentistry University of Copenhagen and Institute of Mathematical Modeling Technical University of Denmark Copenhagen Denmark
On the basis of our studies, we postulate that suture formation in Apert syndrome is related to the relative maturity of abutting calvarial bones. The fused coronal suture, a consistent manifestation at birth, develop...
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作者：
TSUTSUGUCHI, KSAKAINO, HWATANABE, YMemberNTT Human Interface Laboratories
Yokosuka Japan 238 Hidetorno Sakaino received his B.E. degree in 1986 and his M.E. degree in 1988 from Hokkaido Univ.
Hokkaido Japan. He is a Research Engineer in NTT HI Labs. From 1988 to 1990 he worked as an engineer at the Visual Media Division in NYT HI Labs. In 1993 he began to work in the Advanced Video Processing Laboratory HI Labs NTT. His current research interests are representations of elastic objects and their transformations given the interaction between fluid dynamics and moving objects. Yashuhiko Watanabe received his Bachelor's degree from Niigata Univ.
Niigata Japan in 1981. He is the Senior Research Engineer in the Advanced Video Processing Laboratory of NIT HI Labs. He is presently researching 3D volume processinghisualization systems. Since joining the Electrical Communications Laboratories NTT in 1981 he has been working on facsimile communication systems and Videotex communication systems. He is a member of the Institute of Image Electronic Engineers of Japan.
This paper describes a method for automatically generating human walking sequences that match the path set to the given terrain. The Environment Adaptive Human Walking Animation (EAW) module using this method offers t...
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This paper describes a method for automatically generating human walking sequences that match the path set to the given terrain. The Environment Adaptive Human Walking Animation (EAW) module using this method offers to users an interface that can unite human walking motion with the environment in virtual worlds. The EAW module has a 4-layer structure comprising the GUI level, the control level, the motion generation level and the rendering level. The EAW module realizes the adaptation to the 3d terrain by using ''area divisions'' and ''step divisions'' for the walking path in the control level, and generates the walking motion sequences by using the ''E-KLAW'' method that uses dynamics and kinematics in the motion generation level. By using this module, the user's tasks are made significantly simpler and the user can incorporate human motion into various scenes.
The radiosity technique uses the heat transfer theory to define a view‐independent illumination model. For complex scenes, calculation of this model is very time‐intensive, due largely to the determination of a geom...
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