Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6876549 | Computer-Aided Design | 2015 | 7 Pages |
Abstract
Polygonized isosurfaces of anatomical structures commonly suffer from severe artifacts (e.g., noise and staircases), due to inhomogeneous binary volumes. Most state-of-the-art techniques can reduce these artifacts but inevitably ruining anatomical structures' morphology. Given an initial polygonization of an isosurface, we first eliminate these apparent staircases based on a context-aware Laplace filter, and then solve the morphology-preserving problem of anatomical structures as an optimization of the local spatial quadrics (LSQ) of fitted Bézier surfaces during mesh evolution. This results in a conceptually simple approach that provides a unified framework for not only handling artifacts, but also for enabling the morphology preservation of anatomical structures.
Keywords
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Graphics and Computer-Aided Design
Authors
Mingqiang Wei, Lei Zhu, Jinze Yu, Jun Wang, Wai-Man Pang, Jianhuang Wu, Jing Qin, Pheng-Ann Heng,