Abstraction and Depiction of Sparsely Scanned Outdoor Environments

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Date
2005
Journal Title
Journal ISSN
Volume Title
Publisher
The Eurographics Association
Abstract
This paper describes various techniques and applications of rendering three-dimensionally digitized outdoor en- vironments in non-photorealistic rendering styles. The difficulty in rendering outdoor environments is accommodating their inaccuracy, incompleteness, and large size to deliver a smooth animation without suggesting the underlying data deficiency. Standard rendering approaches often expose and inadvertently emphasize missing and noisy data, producing unpleasant images. Our use of non-photorealistic rendering allows us to de-emphasize these problems and produce aesthetically pleasing images. The key approach discussed in this paper employs artistic drawing techniques to illustrate features of varying importance and accuracy. We use point-based representations of the scanned environments and operate directly on the point-based models for abstraction and rendering. We de- velop a unified framework for producing sketchy, profile, painterly, cartoon, and intermingled styles. We describe a level-of-detail data structure, the continuous resolution queue, to promise coherent and consistent animation. We also leverage modern graphics hardware to achieve interactive rendering of large scenes.
Description

        
@inproceedings{
:10.2312/COMPAESTH/COMPAESTH05/019-027
, booktitle = {
Computational Aesthetics in Graphics, Visualization and Imaging
}, editor = {
Laszlo Neumann and Mateu Sbert and Bruce Gooch and Werner Purgathofer
}, title = {{
Abstraction and Depiction of Sparsely Scanned Outdoor Environments
}}, author = {
Xu, Hui
and
Gossett, Nathan
and
Chen, Baoquan
}, year = {
2005
}, publisher = {
The Eurographics Association
}, ISSN = {
1816-0859
}, ISBN = {
3-905673-27-4
}, DOI = {
/10.2312/COMPAESTH/COMPAESTH05/019-027
} }
Citation