Representation of Articulable, Quasi-Rigid, Three-Dimensional Objects
نویسندگان
چکیده
Many three-dimensional objects consist of quasi-rigid pieces connected at articulable joints. The choice of a suitable three-dimensional representation for such objects, for example, the human body, is considered with respect to properties required during movement of the jointed segments. We discuss the coordinate systems involved, representation of the surface of the object, and maintenance of proper segment orientation during movement. Generalization to more complex forms is discussed. Disciplines Computer Engineering | Computer Sciences Comments University of Pennsylvania Department of Computer and Information Science Technical Report No. MSCIS-79-24. This technical report is available at ScholarlyCommons: http://repository.upenn.edu/cis_reports/1001 Representation of Articulable, Quasi-Rigid, Three-Dimensional Objects Norman I. Sadler Joseph O'Rourke April 1979 MS-CIS-79"""24 Computer and Information Science Department Moore School of Electrical Engineering University of Pennsylvania Philadelphia, PA 19104 0 resented at the NSF sponsored Workshop on Three-Dimensional Object RepresPntations University of Pennsylvania, April 1979
منابع مشابه
The Representation-theoretic Rank of the Doubles of Quasi-quantum Groups
We compute the representation-theoretic rank of a finite dimensional quasi-Hopf algebra H and of its quantum double D(H), within the rigid braided category of finite dimensional left D(H)-modules.
متن کاملSubdividing Non Rigid 3D Objects into Quasi Rigid Parts
A new method for efficient modelling of image sequences has been proposed by Kappei and Liedtke IM using an analysis by synthesis algorithm It is based on extracting the three dimensional information from a sequence of TV images in order to construct a 3D model of the scene The method can be used for the efficient transmission of TV images to a receiver, where the image sequence has to be recon...
متن کاملThe effect of social cognitive representation on the mental property of the body: Evidence based on rubber hand illusion
Mental representations are to be considered as the most advanced aspects of human cognition and in addition to their own physical representations, representations of social cognition of others can also affect the mental experience of each person's ownership of their body. Accordingly, the present research as a quasi-experimental study based on repeated measures, was conducted in order to invest...
متن کاملGraph-Based Object Hypothesis
Reasoning about three-dimensional scenes involves the analysis of large amounts of complex, time-varying information. This paper presents a novel representation for storing such information that provides a unified, intuitive framework for reasoning about rigid objects. The core structure is a graph that represents features of the scene as vertices, and stores distances between these features at...
متن کاملA rigidity penalty term for nonrigid registration.
Medical images that are to be registered for clinical application often contain both structures that deform and ones that remain rigid. Nonrigid registration algorithms that do not model properties of different tissue types may result in deformations of rigid structures. In this article a local rigidity penalty term is proposed which is included in the registration function in order to penalize...
متن کامل