Reconstruction of intersecting surface models from scanned data for styling design

摘要

This paper presents a new method for reconstructing a surface model from scanned data as a C~0 composite surface. The surface is represented by intersecting underlying surfaces (U-surfaces), which are reconstructed from their respective parts segmented according to sweep-based modeling. However, even if each U-surface is successfully reconstructed, a surface model for the scanned data cannot be guaranteed to be desirably represented by a composite surface of those U-surfaces. Therefore, the proposed method reconstructs adjacent U-surfaces such that their intersecting curve represents part of feature lines, which are slightly offset from the scanned data, and has as small a torsion as possible. Compared with conventional approaches that naively fit a single patch to whole or some segmented parts, the method provides a guiding principle for the generation of surface models that are more suitable for styling design. The experimental results demonstrate that desirable models can be generated from real-world scanned data.