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Relating the primitive hierarchy of the PREMO standard to the standard reference model for intelligent multimedia presentation systems
1997
Computer Standards & Interfaces
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However, the SRM does not instantiate this layer in detail. but instead refers to the Presentation Environment for Multimedia Objects (PREMO) ISO/IEC standard which provides a reference model for a presentation ...
PREMO already contains a set of ba.~ic structures, the so-called PREMO Primitive Hierarchy. to describe different media types. ...
Acknowledgements The research reported in this paper was partly funded by EC Esprit IV Grant 20597 to the Chameleon consortium and partly by EC HCM Grant CHRX-CT93-0085 to the ERCIM Computer Graphics Network ...
doi:10.1016/s0920-5489(97)00017-2
fatcat:rwpb2gb6zvcpxphibwdijk447m
HEDCPP: Data Structure for Application Programs Aimed to Engineering Education-Learning
2013
IOSR Journal of Engineering
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The development and/or adaptation of computer systems through the resources of computer graphics and languages object-oriented, like C++ and JAVA, has been shown substantially important in building tools ...
The development of these tools requires, in addition to the resources mentioned, the use of data structures and algorithms that allow a sophisticated modeling, perception and solution to these problems ...
Initially its main features are shown through the interface developed. TRUSS_GI: Preprocessor graphical object-oriented for building and understanding of physical and geometric modeling of Plane Trusses ...
doi:10.9790/3021-03821624
fatcat:33no5dt4pbfzvpjl4c4i4szdte
An interactive 3D toolkit for constructing 3D widgets
1993
Proceedings of the 20th annual conference on Computer graphics and interactive techniques - SIGGRAPH '93
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We thank Andries van Dam and the members of the Brown University Graphics Group for their help and support. Please contact the authors for a copy of the accompanying videotape. ...
Acknowledgments This work was supported in part by the NSF/ARPA Science and Technology Center for Computer Graphics and Scientific Visualization and by ONR Contract N00014-91-J-4052, ARPA Order 8225. ...
These would be especially useful when modeling the behavior of real-world objects, or when creating interface objects such as bounded sliders, joints, and dials. ...
doi:10.1145/166117.166127
dblp:conf/siggraph/ZeleznikHRHMPH93
fatcat:u5h3ut2ncjff7gvirtj6rqxngq
Unsupervised Learning of Visual Feature Hierarchies
[chapter]
2005
Lecture Notes in Computer Science
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This learning scheme results in a graphical model that constitutes a probabilistic representation of a flexible visual feature hierarchy. ...
In experiments, the proposed approach demonstrates efficient learning and robust detection of object models in the presence of clutter and occlusion and under view point changes. Level 0 1 2 ...
Fig. 2 . 2 Evidence map of an object model on a series of images differing in viewing angle.
Fig. 3 . 3 Graphical models learned on two objects. ...
doi:10.1007/11510888_24
fatcat:4oll3hyhqjgajaysi7azx2hgv4
A standard reference model for intelligent multimedia presentation systems
1997
Computer Standards & Interfaces
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Finally, the benefits and costs of using the PREMO primitive hierarchy for the SRM are discussed. ...
PREMO already contains a set of basic structures, the so-called PREMO Primitive Hierarchy, to describe different media types. ...
Acknowledgements The research reported in this paper was partly funded by EC Esprit IV grant 20597 to the Chameleon consortium and partly by EC HCM grant CHRX-CT93-0085 to the ERCIM Computer Graphics Network ...
doi:10.1016/s0920-5489(97)00013-5
fatcat:utucgs52cvcbdbqv5uxpgahi5q
Strategies for scientific prototyping in Smalltalk
1989
SIGPLAN notices
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This paper describes the design of a scientific prototyping environment in Smalltalk and discusses implementation strategies to achieve high performance interactive modeling of computationally intensive ...
Techniques for inclusion of user primitives written in C to support computationally intense methods are described in detail in their current implementation on advanced Smalltalk workstations (SUN4, Ardent ...
Computational Objects The object-oriented model consists of the implementation of two new classes: Flag and Vector3D. ...
doi:10.1145/74878.74894
fatcat:pzmucbhpwvdoxks6ixsazt436i
Programming Paradigms in an Object-Oriented Multimedia Standard
1998
Computer graphics forum (Print)
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Of the various programming paradigms in use today, object-orientation is probably the most successful in terms of industrial take-up and application, particularly in the field of multimedia. ...
While key aspects of the object-oriented paradigm provide a sound technical basis for achieving these aims, the need to balance extensibility and a high-level programming interface against the realities ...
Finally, a large portion of the work presented in this paper has been carried out under the auspices of the ERCIM Computer Graphics Network, funded under the European Communities CEC HCM Programme. ...
doi:10.1111/1467-8659.00288
fatcat:3h72hsvr65cvbb3leuhxme7swq
A Hand Control and Automatic Grasping System for Synthetic Actors
1994
Computer graphics forum (Print)
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In particular, the system can decide to use a pinch when the object is too small to be grasped by more than two fingers or to use a two-handed grasp when the object is too large. ...
In order to ensure realistic looking closing of the hand, several of the joints are constrained. A brief description of the system and results are also presented. ...
Acknowledgments The research was partly supported by the Swiss National Research Foundation and OFES and is part of the ESPRIT Project HUMANOID. ...
doi:10.1111/1467-8659.1330167
fatcat:vb7dngroxrfb5m57qnalpmo554
Collision Handling in Dynamic Simulation Environments
[article]
2005
Eurographics State of the Art Reports
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The idea of image-space collision detection is derived as a special case of spatial partitioning and it is illustrated how graphics hardware can be used to accelerate these methods. ...
The tutorial will cover a large variety of relevant techniques. ...
Spatial Partitioning University of Freiburg -Institute of Computer Science -Computer Graphics Laboratory • space is divided up into cells • object primitives are placed into cells • object primitives within ...
doi:10.2312/egt.20051051
fatcat:wmutv6glofgupmgr2y7hgxdaju
Visualization of events from arbitrary spacetime perspectives
2000
Visual Data Exploration and Analysis VII
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The 3D cross-sections are rendered using standard techniques of 3D computer graphics. Extrusion of nonrigid 3D objects is useful for visualizing events that involve objects with time-varying shape. ...
The boundaries of the 4D objects are represented using polyhedra, in much the same way that the boundaries of 3D objects may be represented using polygons. ...
This environment and others were created using a 4D modeling and level-editing program, developed in the UC Irvine VR Lab, that we call HyperEdit. The program provides a number of primitive objects. ...
doi:10.1117/12.378912
fatcat:vwfzxau6pve6rhppl3gelku73u
NPSOFF: An object description language for supporting virtual world construction
1993
Computers & graphics
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The development of interesting virtual world systems requires the modeling of many different, usually complex, graphical objects. ...
How these objects are represented in the system plays a major part in determining the capabilities of the system. ...
Acknowledgments We wish to acknowledge the sponsors of our efforts, in particular Major David ...
doi:10.1016/0097-8493(93)90035-8
fatcat:4solia6qxbhknisdz3fjcmhmm4
An object-oriented knowledge-based approach for formulating applied general equilibrium models
1996
Journal of Economic Dynamics and Control
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This paper proposes and illustrates an object-oriented, knowledge-based approach to formulate Applied General Equilibrium (AGE) models. ...
A frame representation of major objects in AGE models for world trade is presented. This representation can be used as the structure of a model base in a loosely coupled intelligent modeling system. ...
Section 2 outlines core object-oriented concepts and presents an intuitive object-oriented view of AGE models. ...
doi:10.1016/0165-1889(94)00849-3
fatcat:32kgj76c7jfbxberp7a5ekjble
Enriching Organizational Models through Semantic Annotation
2013
Procedia Technology - Elsevier
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Semantic annotation of visual models is useful to provide a precise, formal meaning to model elements, thus making them more understandable to people, enabling a deeper analysis of requirements and automated ...
We present an approach for the enrichment of visual models of an organization, with annotations characterized by a semantics defined by an organized, structured source of knowledge. ...
Finally, the definition of semantic annotation is given.
Visual Modeling Visual modeling is the graphic representation of objects and systems of interest using graphical languages. ...
doi:10.1016/j.protcy.2013.04.037
fatcat:yu64itkcvrfjvcc5mqo5inrkcq
Point-based rendering techniques
2004
Computers & graphics
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The increasing popularity of points as rendering primitives has led to a variety of different rendering algorithms, and the different implementations compare like apples to oranges. ...
In this paper, we revisit and compare a number of recently developed point-based rendering implementations within a common testbed. ...
Point-Based Graphics (in Zu¨rich 2004) for their suggestions and discussions on this topic. ...
doi:10.1016/j.cag.2004.08.014
fatcat:dfolaiduzjgq3jj7mtp7nsaofm
Orientation Beautification of Reverse Engineered Models
2018
Proceedings of the 13th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications
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We first retrieve orientations from primitives (normals, axes), then compute an orthonormal coordinate system. Finally, we adjust each primitive orientation according to spherical coordinates. ...
Today, it has become more frequent and relatively easy to digitize the surface of 3D objects and then to reconstruct a boundary representation (B-Rep). ...
It is used by designers when they model (3D) mechanical objects. ...
doi:10.5220/0006606000910100
dblp:conf/grapp/GauthierPBS18
fatcat:l54mwmlpbvgybgd6mvjjkh4qvi
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