Robust Watertight Manifold Surface Generation Method for ShapeNet Models

TL;DR

This paper presents a robust algorithm for generating 2-Manifold surfaces from ShapeNet models, ensuring correct topology and high precision through octree representation and isosurface extraction.

Contribution

A novel pipeline that reliably produces 2-Manifold surfaces from triangle meshes of ShapeNet models with guaranteed topology correctness.

Findings

Successfully generates 2-Manifold surfaces with uniform vertex distribution.

Ensures high-precision surface reconstruction by vertex projection.

Applicable to all ShapeNet models with efficiency and correctness.

Abstract

In this paper, we describe a robust algorithm for 2-Manifold generation of various kinds of ShapeNet Models. The input of our pipeline is a triangle mesh, with a set of vertices and triangular faces. The output of our pipeline is a 2-Manifold with vertices roughly uniformly distributed on the geometry surface. Our algorithm uses an octree to represent the original mesh, and construct the surface by isosurface extraction. Finally, we project the vertices to the original mesh to achieve high precision. As a result, our method can be adopted efficiently to all ShapeNet models with the guarantee of correct 2-Manifold topology.