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Investigators at Hangzhou Normal University Report Findings in Computer Programming (Exact and Adaptive Signed Distance Fields Computation for Rigid...

August 7, 2014



Investigators at Hangzhou Normal University Report Findings in Computer Programming (Exact and Adaptive Signed Distance Fields Computation for Rigid and Deformable Models on GPUs)

By a News Reporter-Staff News Editor at Computer Weekly News -- Fresh data on Computer Programming are presented in a new report. According to news reporting out of Hangzhou, People's Republic of China, by VerticalNews editors, research stated, "Most techniques for real-time construction of a signed distance field, whether on a CPU or GPU, involve approximate distances. We use a GPU to build an exact adaptive distance field, constructed from an octree by using the Morton code."

Our news journalists obtained a quote from the research from Hangzhou Normal University, "We use rectangle-swept spheres to construct a bounding volume hierarchy (BVH) around a triangulated model. To speed up BVH construction, we can use a multi-BVH structure to improve the workload balance between GPU processors. An upper bound on distance to the model provided by the octree itself allows us to reduce the number of BVHs involved in determining the distances from the centers of octree nodes at successively lower levels, prior to an exact distance query involving the remaining BVHs."

According to the news editors, the research concluded: "Distance fields can be constructed 35-64 times as fast as a serial CPU implementation of a similar algorithm, allowing us to simulate a piece of fabric interacting with the Stanford Bunny at 20 frames per second."

For more information on this research see: Exact and Adaptive Signed Distance Fields Computation for Rigid and Deformable Models on GPUs. IEEE Transactions on Visualization and Computer Graphics, 2014;20(5):714-725. IEEE Transactions on Visualization and Computer Graphics can be contacted at: Ieee Computer Soc, 10662 Los Vaqueros Circle, PO Box 3014, Los Alamitos, CA 90720-1314, USA. (Institute of Electrical and Electronics Engineers - www.ieee.org/; IEEE Transactions on Visualization and Computer Graphics - ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=2945)

Our news journalists report that additional information may be obtained by contacting F.C. Liu, Hangzhou Normal Univ, Hangzhou Inst Serv Engn, Hangzhou, Zhejiang, People's Republic of China.

Keywords for this news article include: Asia, Hangzhou, Computer Programming, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Computer Weekly News


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