INPLO is a plot system designed for presentation and documentation of research results. Main features are the interactive development of plots on graphics terminals using mnemonic commands, the storage of graphs like ...
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INPLO is a plot system designed for presentation and documentation of research results. Main features are the interactive development of plots on graphics terminals using mnemonic commands, the storage of graphs like the inputs and the optimization for HP/1000 16-bit computers.
techniques for computer modeling of electrical distribution systems have been available to utility engineers for years. The formation of a distribution data base can be a huge task because of the enormous number of co...
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ISBN:
(纸本)0897910214
techniques for computer modeling of electrical distribution systems have been available to utility engineers for years. The formation of a distribution data base can be a huge task because of the enormous number of components in a utility's distribution system. The continuous changes that occur in a distribution system make data base maintenance difficult. Application of computergraphics to distribution engineering simplifies data base formation and maintenance and AIDS in interpreting the results of analysis. Graphic-aided distribution analysis allows the engineer to quickly see the results of alternate modes of system operations, thus speeding the iterative process of decisionmaking. Future applications for graphicstechniques in utilities extend to distribution SCADA, work order preparation and protective device coordination. � acm. All rights reserved.
Are computergraphics displays as effective as they should be? Are they as appealing as they could be? How can displays of information acquire more impact? How can they be made more memorable. Questions like these are...
ISBN:
(纸本)0897910214
Are computergraphics displays as effective as they should be? Are they as appealing as they could be? How can displays of information acquire more impact? How can they be made more memorable. Questions like these are being asked frequently in the computergraphics community. � acm. All rights reserved.
Panelists will present and discuss issues related to producing 3D computer animation and digital image synthesis in the context of long format productions. Top producers of feature films, television shows and specials...
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The theory of the multivariate polyhedral splines is applied to analytic antialiasing: a triangular simplex spline is used to represent surface intensity, while a box spline is used as a filter. Their continuous convo...
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ISBN:
(纸本)9780897917018
The theory of the multivariate polyhedral splines is applied to analytic antialiasing: a triangular simplex spline is used to represent surface intensity, while a box spline is used as a filter. Their continuous convolution is a prism spline that can be evaluated exactly via recurrence. Evaluation performance can be maximized by exploiting the properties of the prism spline and its relationship to the sampling grid. After sampling, digital signal processing can be used to evaluate exactly and efficiently the sampled result of any analytic spline filter in the span of the box spline basis used as the original analytic filter.
A classic photographic task is the mapping of the potentially high dynamic range of real world luminances to the low dynamic range of the photographic print. This tone reproduction problem is also faced by computer gr...
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ISBN:
(纸本)9781581135213
A classic photographic task is the mapping of the potentially high dynamic range of real world luminances to the low dynamic range of the photographic print. This tone reproduction problem is also faced by computergraphics practitioners who map digital images to a low dynamic range print or screen. The work presented in this paper leverages the time-tested techniques of photographic practice to develop a new tone reproduction operator. In particular, we use and extend the techniques developed by Ansel Adams to deal with digital images. The resulting algorithm is simple and produces good results for a wide variety of images.
An approach based on a mathematical formalization of desirable properties of pictures is presented for correcting several types of perceived geometric distortions in computer-generated and photographic images. Percept...
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ISBN:
(纸本)9780897917018
An approach based on a mathematical formalization of desirable properties of pictures is presented for correcting several types of perceived geometric distortions in computer-generated and photographic images. Perceptually preferable viewing transformations are obtained from a small set of simple assumptions and shown to be decomposed into a perspective or parallel projection followed by a planar transformation. Following this, it is proven that two perceptually important properties are incompatible and cannot be satisfied simultaneously. By implementing the proposed transformations to computer-generated and photographic perspective projection images, it is found that the transformations considerably reduced distortion in wide-angle motion pictures and computer-generated animations.
We present a methodology for the design of interactive user interfaces. This methodology provides the designer with a number of steps to be followed in the design of a user interface. Examples of a formal notation for...
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Described is a visible surface algorithm and an implementation that generates shaded display of objects with hundreds of polygons rapidly enough for interactive use - several images per second. The basic algorithm, in...
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