NDLI: Efficient Multiresolution of Foliage for Real-Time Rendering

Content Provider	IEEE Xplore Digital Library
Author	Qingqiong Deng Xiaopeng Zhang Jaeger, M.
Copyright Year	2006
Description	Author affiliation: Sino-French Lab. LIAMA, CAS Inst. of Autom., Beijing (Qingqiong Deng; Xiaopeng Zhang; Jaeger, M.)
Abstract	This paper presents a generalized geometric foliage simplification method to efficiently construct multi-resolution models for leaves with complex shapes. It includes two phases: preprocessing and rendering. In the preprocessing, we perform the simplification hierarchically in three levels: single leaf phyllotaxy group and whole crown. We first simplify each single complex leaf to a quadrilateral. Then, we implement the progressive leaf collapse in the phyllotaxy group and the crown one after the other. To accelerate the preprocessing, we search for the best leaf pair in a limited scope, where the pairs of leaves impossible to be collapsed are eliminated in advance. During the rendering, we determine detail levels for leaves locating in different positions of the crown according to the distance from the viewer to the rendered tree, and a statistical visibility. Finally, the less visible leaves are rendered coarsely. As a result, visual quality is maintained while the overall compression ratio is higher.
Starting Page	307
Ending Page	314
File Size	1211220
Page Count	8
File Format	PDF
ISBN	9780769528519
DOI	10.1109/PMA.2006.46
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-11-13
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Geometry Solid modeling Visualization Content addressable storage Automation Shape Laboratories Rendering (computer graphics) Hardware Acceleration
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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