title: Robust feature classification and editing.
abstract: Sharp edges, ridges, valleys, and prongs are critical for the appearance and an accurate representation of a 3D model. In this paper, we propose a novel approach that deals with the global shape of features in a robust way. Based on a remeshing algorithm which delivers an isotropic mesh in a feature-sensitive metric, features are recognized on multiple scales via integral invariants of local neighborhoods. Morphological and smoothing operations are then used for feature region extraction and classification into basic types such as ridges, valleys, and prongs. The resulting representation of feature regions is further used for feature-specific editing operations.
authors.affiliation: Department of Computer Science and Technology, Tsinghua University, Beijing, PR China laiyk03@mails.tsinghua.edu.cn
authors.forename: Yu-Kun
authors.initials: YK
authors.lastname: Lai
authors.forename: Qian-Yi
authors.initials: QY
authors.lastname: Zhou
authors.forename: Shi-Min
authors.initials: SM
authors.lastname: Hu
authors.forename: Johannes
authors.initials: J
authors.lastname: Wallner
authors.forename: Helmut
authors.initials: H
authors.lastname: Pottmann
mesh_terms: D000465:Algorithms; D001185:Artificial Intelligence; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D016247:Information Storage and Retrieval / Q000379:methods; D010363:Pattern Recognition, Automated / Q000379:methods*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity