Consolidation of unorganized point clouds for surface reconstruction

Hui Huang, Dan Li, Hao Zhang, Uri Ascher, Daniel Cohen-Or

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We consolidate an unorganized point cloud with noise, outliers, non-uniformities, and in particular interference between close-by surface sheets as a preprocess to surface generation, focusing on reliable normal estimation. Our algorithm includes two new developments. First, a weighted locally optimal projection operator produces a set of denoised, outlier-free and evenly distributed particles over the original dense point cloud, so as to improve the reliability of local PCA for initial estimate of normals. Next, an iterative framework for robust normal estimation is introduced, where a priority-driven normal propagation scheme based on a new priority measure and an orientation-aware PCA work complementarily and iteratively to consolidate particle normals. The priority setting is reinforced with front stopping at thin surface features and normal flipping to enable robust handling of the close-by surface sheet problem. We demonstrate how a point cloud that is well-consolidated by our method steers conventional surface generation schemes towards a proper interpretation of the input data.

Original languageEnglish
Title of host publicationProceedings of ACM SIGGRAPH Asia 2009, SIGGRAPH Asia '09
Pages176:1-176:7
Volume28
Edition5
DOIs
StatePublished - 2009
EventACM SIGGRAPH Asia 2009, SIGGRAPH Asia '09 - Yokohama, Japan
Duration: 16 Dec 200919 Dec 2009

Conference

ConferenceACM SIGGRAPH Asia 2009, SIGGRAPH Asia '09
Country/TerritoryJapan
CityYokohama
Period16/12/0919/12/09

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