QEx: Robust Quad Mesh Extraction

Quad mesh extraction, the process of extracting a polygonal quad mesh out of a parametrization, is a widely underestimated problem. We show how to do it in a numerically stable, degeneracy tolerant and efficient manner.

Hans-Christian Ebke, Rheinisch-Westfaelische Technische Hochschule
Aachen University
David Bommes, INRIA Sophia Antipolis
Marcel Campen, Rheinisch-Westfaelische Technische Hochschule Aachen University
Leif Kobbelt, Rheinisch-Westfaelische Technische Hochschule Aachen University

Real-time 3D Reconstruction at Scale using Voxel Hashing

We present a novel approach for large and fine scale online 3D reconstruction based on spatial hashing. Our algorithm efficiently compresses space, allows for real-time data access and implicit surface updates. Compared to current state-of-the-art online systems, we significantly improve performance (about 3x) and reconstruction quality.

Matthias Nießner, University of Erlangen-Nuremberg
Michael Zollhöfer, University Of Erlangen-Nuremberg
Shahram Izadi, Microsoft Research Cambridge
Marc Stamminger, University Of Erlangen-Nuremberg

Saddle Vertex Graph (SVG) : A Novel Solution to the Discrete Geodesic Problem

The Saddle Vertex Graph (SVG) is a sparse undirected graph that encodes complete geodesic distance information. A geodesic path on the mesh is equivalent to a shortest path on the SVG, which can be solved efficiently using the shortest path algorithm.

Xiang Ying, Nanyang Technological University
Xiaoning Wang, Nanyang Technological University
Ying He, Nanyang Technological University

PolyCut: Monotone Graph-Cuts for PolyCube Base-Complex Construction

While PolyCubes are useful as parameterization base-complexes for various operations in computer graphics, constructing PolyCube base-complexes remains a challenge. Our proposed PolyCut algorithm captures the desired properties of a PolyCube base-complex, balancing parameterization distortion against singularity count, and produces demonstrably better PolyCube base-complexes than previous work.

Marco Livesu, University of Cagliari
Nicholas Vining,University of British Columbia
Alla Sheffer, University of British Columbia
James Gregson, University of British Columbia
Riccardo Scateni, University of Cagliari

A Compact Random-Access Representation for Urban Modeling and Rendering

Introducing a novel representation that is suitable for modeling and rendering large-scale urban city in a network environment. High frame rate interactive fly-by and street-level walk-through are achieved using a ray-casting based GPU shader.

Zhengzheng Kuang, The University Of Hong Kong
Bin Chan, The University Of Hong Kong
Yizhou Yu,The University Of Hong Kong
Wenping Wang, The University Of Hong Kong