NDLI: Instance-aware simplification of 3D polygonal meshes

Content Provider	IEEE Xplore Digital Library
Author	Azim, T. Cheslack-Postava, E. Levis, P.
Copyright Year	2015
Description	Author affiliation: Stanford Univ., Stanford, CA, USA (Azim, T.; Cheslack-Postava, E.; Levis, P.)
Abstract	Virtual worlds and games increasingly deliver 3D meshes over the Internet using instanced file formats, such as COLLADA. However, existing simplification algorithms do not account for instancing in their inputs, operating instead on triangle soups or indexed triangle meshes. This makes them unsuitable for highly instanced meshes, since expanding an instanced mesh to an indexed triangle mesh and then simplifying it can result in a larger output file size. The high cost of delivering these larger files over the Internet results in long network latencies and low performance. This paper presents instance-aware simplification (IAS), an algorithm designed to efficiently simplify instanced 3D meshes. To ensure smaller output file sizes, IAS incorporates the existing compression of mesh instancing into its cost metrics. Unlike existing algorithms, IAS strictly reduces file size as it simplifies, so that IAS-simplified meshes of a given file size have higher visual quality than meshes simplified using existing algorithms. On highly instanced models, IAS results in simplified versions that are orders of magnitude smaller than existing algorithms for a given triangle count.
Starting Page	1
Ending Page	6
File Size	1455838
Page Count	6
File Format	PDF
ISBN	9781479970827
DOI	10.1109/ICME.2015.7177472
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-06-29
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Instancing 3D Meshes Simplification
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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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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