We perform research in surface reconstruction from point clouds, geometry processing and geometry representations. We use parallel processing of thousands of GPU cores to enable flash geometry operations in real-time. Novel data structures are evaluated to reduce the time complexity of geometric operations, such as collision detection or occlusion-aware surface processing. In computational geometry, we prove concepts relating samples to curves and manifolds. We also research novel surface description paradigms and according operators, representing large point cloud data in a probabilistic way.

Projects

Publications

95 Publications found:
Image Bib Reference Publication Type
2024
Matyas Hoffer-Toth
CycleSafely on mobile
[thesis] 		Bachelor Thesis
Stefan OhrhallingerORCID iD, Diana MarinORCID iD
Sampling and reconstructing point clouds, 28. May 2024, Graz
 Invited Talk
Diana MarinORCID iD, Stefan OhrhallingerORCID iD, Michael WimmerORCID iD
Parameter-free connectivity for point clouds
In Proceedings of the 19th International Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications - Volume 1, HUCAPP and IVAPP, pages 92-102. February 2024.
[paper] 		Conference Paper
PPSurf teaser with comparison Philipp ErlerORCID iD, Lizeth Fuentes-PerezORCID iD, Pedro Hermosilla-CasajusORCID iD, Paul Guerrero, Renato Pajarola, Michael WimmerORCID iD
PPSurf: Combining Patches and Point Convolutions for Detailed Surface Reconstruction
Computer Graphics Forum, 43(1):tbd-tbd, January 2024. [paper] [teaser] [Live System] [Repo (Github)]		 Journal Paper with Conference Talk
2023
Moritz Leander Großfurtner
Generating Aesthetic Plant Models from an Open Data Format of the Project for Sustainable Agroecosystems in Godot
[thesis] 		Bachelor Thesis
Stefan OhrhallingerORCID iD, Amal Dev Parakkat, Pooran Memari
Feature-Sized Sampling for Vector Line Art
In Proceedings of the 31th Pacific Conference on Computer Graphics and Applications, pages 1-2. October 2023.
[paper] [talk]		 Conference Paper
Brigitte Withalm
Transport Mode Detection Segmentation
[thesis] 		Bachelor Thesis
Pix2Model Evaluation Example Florian Steinschorn
Reconstruction for a photogrammetry webservice
[Pix2Model Live-System] [Pix2Model Repo]		 Student Project
Diana MarinORCID iD, Stefan OhrhallingerORCID iD, Michael WimmerORCID iD
Parameter-Free and Improved Connectivity for Point Clouds
Poster shown at Eurographics 2023 ( 8. May 2023-12. May 2023) In Eurographics 2023 - Posters , pages 5-6.
[paper] 		Poster
General system overview. From a seeded user sketch, the silhouette image, the normal and depth maps are translated and a base mesh is determined. Using those, a differentiable renderer is used in order to predict a 3d model. Kerstin Hofer (Department Creative Technologies, University of Applied Sciences Salzburg, Salzburg, Austria)
Sketch to 3d-Model using Deep Learning and Differentiable Rendering
[Method] [Thesis] [Source Code]		 Master Thesis
Michael Rubik
CycleSafely Acquire Data
[image] 		Bachelor Thesis
2022
Jozef Hladky, Michael Stengel, Nicholas Vining, Bernhard KerblORCID iD, Hans-Peter Seidel, Markus Steinberger
QuadStream: A Quad-Based Scene Streaming Architecture for Novel Viewpoint Reconstruction
ACM Transactions on Graphics, 41(6), December 2022. 		Journal Paper with Conference Talk
Diana MarinORCID iD, Stefan OhrhallingerORCID iD, Michael WimmerORCID iD
SIGDT: 2D Curve Reconstruction
Computer Graphics Forum, 41(7):25-36, October 2022. [Paper] [Paper]		 Journal Paper with Conference Talk
Ahmed El Agrod
Immersive Redesign
[thesis] 		Bachelor Thesis
Aleksandar Vucenovic
Differential Rendering for Computed Tomography Reconstruction
[Bachelor thesis] [Image] 		Bachelor Thesis
Markus Schütz, Bernhard KerblORCID iD, Michael WimmerORCID iD
Software Rasterization of 2 Billion Points in Real Time
Proceedings of the ACM on Computer Graphics and Interactive Techniques, 5(3):1-17, July 2022. [paper] 		Journal Paper with Conference Talk
Real-time visualization result of our method for decision support in flood management. Close-up of flood simulation results at 1 m resolution. Daniel Cornel, Silvana Zechmeister, Eduard GröllerORCID iD, Jürgen Waser
Watertight Incremental Heightfield Tessellation
IEEE Transactions on Visualization and Computer Graphics, PP, May 2022. [paper] 		Journal Paper (without talk)
Diana MarinORCID iD, Stefan OhrhallingerORCID iD, Michael WimmerORCID iD
SIG-based Curve Reconstruction
Poster shown at Eurographics 2022 - 43rd Annual Conference of the European Association for Computer Graphics (25. April 2022-29. April 2022) In Eurographics 2022 - Posters .
[paper] [poster] [Paper]		 Poster
Stefan OhrhallingerORCID iD, Amal Dev Parakkat, Jiju Peethambaran
Shape Reconstruction: From Theory to Practice
In Eurographics 2022 - Tutorials. April 2022.
[website]		 Other Reviewed Publication
Bernhard KerblORCID iD, Linus Horvath, Daniel Cornel, Michael WimmerORCID iD
An Improved Triangle Encoding Scheme for Cached Tessellation
In Eurographics 2022 - Short Papers, pages 1-4. April 2022.
[paper] 		Conference Paper
Adam Celarek, Pedro Hermosilla-CasajusORCID iD, Bernhard KerblORCID iD, Timo Ropinski, Michael WimmerORCID iD
Gaussian Mixture Convolution Networks
In The Tenth International Conference on Learning Representations (ICLR 2022), pages 1-23. April 2022.
[paper] [Code on github]		 Conference Paper
Alexandra Gamsjäger
Procedural Modeling utilizing Parser Generators
[thesis] 		Bachelor Thesis
Thomas Steinschauer
Change Detection using the InfiniTAM framework
[bachelor thesis] [image] 		Bachelor Thesis
2021
Ilir Murturi, Chao Jia, Bernhard KerblORCID iD, Michael WimmerORCID iD, Schahram Dustdar, Christos Tsigkanos
On Provisioning Procedural Geometry Workloads on Edge Architectures
In Proceedings of the 17th International Conference on Web Information Systems and Technologies - WEBIST, pages 354-359. October 2021.
[paper] 		Conference Paper
Johannes UnterguggenbergerORCID iD, Bernhard KerblORCID iD, Jakob Pernsteiner, Michael WimmerORCID iD
Conservative Meshlet Bounds for Robust Culling of Skinned Meshes
Computer Graphics Forum, 40(7):57-69, October 2021. [paper] 		Journal Paper with Conference Talk
Chao Jia, Moritz Roth, Bernhard KerblORCID iD, Michael WimmerORCID iD
View-Dependent Impostors for Architectural Shape Grammars
In Pacific Graphics Short Papers, Posters, and Work-in-Progress Papers, pages 63-64. October 2021.
[paper] 		Conference Paper
Alexius Rait
Fast Radial Search for Progressive Photon Mapping
[thesis] 		Bachelor Thesis
Point cloud editor Marie-Sophie Pichler
Frontend for a photogrammetry webservice
[elephants] [Pix2Model Live-System] [Pix2Model Repo]		 Student Project
Stefan OhrhallingerORCID iD, Jiju Peethambaran, Amal Dev Parakkat, Tamal K Dey, Ramanathan Muthuganapathy
2D Points Curve Reconstruction Survey and Benchmark
Computer Graphics Forum, 1:611-632, March 2021. [paper] [Website]		 Journal Paper with Conference Talk
Dennis Depner
3D Scan Integration
[paper] [source]		 Bachelor Thesis
Lisa-Maria Kellner
Klassifikation Urbaner Punktwolken Mittels 3D CNNs In Kombination mit Rekonstruktion von Gehsteigen
 Master Thesis
Lukas Brunner
Space Partitioning for Distributed Surface Reconstruction
 Student Project
2020
We present Points2Surf, a method to reconstruct an accurate implicit surface from a noisy point cloud. Unlike current data-driven surface reconstruction methods like DeepSDF and AtlasNet, it is patch-based, improves detail reconstruction, and unlike Screened Poisson Reconstruction (SPR), a learned prior of low-level patch shapes improves reconstruction accuracy. Note the quality of reconstructions, both geometric and topological, against the original surfaces. The ability of Points2Surf to generalize to new shapes makes it the first learning-based approach with significant generalization ability under both geometric and topological variations. Philipp ErlerORCID iD, Paul Guerrero, Stefan OhrhallingerORCID iD, Michael WimmerORCID iD, Niloy Mitra
Points2Surf: Learning Implicit Surfaces from Point Clouds
In Computer Vision -- ECCV 2020, pages 108-124. October 2020.
[points2surf_paper] [short video] 		Conference Paper
The processing steps of the dataset generation shown as a graph. Maximilian Riegler
High-Performance Framework for Dataset Generation
 Bachelor Thesis
Kurt Leimer, Andreas Winkler, Stefan OhrhallingerORCID iD, Przemyslaw Musialski
Pose to Seat: Automated design of body-supporting surfaces
Computer Aided Geometric Design, 79:1-1, April 2020. [image] [Paper] [paper]		 Journal Paper (without talk)
Martin Rumpelnik
Planetary Rendering with Mesh Shaders
[Thesis] 		Bachelor Thesis
2019
Horst Gruber
Extensible Image Classification
 Bachelor Thesis
Reinhold PreinerORCID iD, Tamy Boubekeur, Michael WimmerORCID iD
Gaussian-Product Subdivision Surfaces
ACM Transactions on Graphics, 38(4):35:1-35:11, July 2019. [image] [Paper] 		Journal Paper with Conference Talk
Christian Clemenz
Fast Rotationally Symmetric Direction Fields on 3D Surfaces
[thesis] 		Bachelor Thesis
Felix Kugler
Profiling and Optimization of Large Biomolecular Scenes
[image] [thesis] 		Bachelor Thesis
Manifold curve fitted samples with highly varying noise Stefan OhrhallingerORCID iD, Michael WimmerORCID iD
FitConnect: Connecting Noisy 2D Samples by Fitted Neighborhoods
Computer Graphics Forum, 38(1):126-137, February 2019. [paper] [Replicability Source Code]		 Journal Paper with Conference Talk
Florian Laager
Robust Registration of Range Images
[image] [thesis] 		Master Thesis
Dominik Scholz
Tile-Based Procedural Terrain Generation
[thesis] 		Bachelor Thesis
Stefan OhrhallingerORCID iD, Adam Celarek
X-Mas Card 2019
[image] [pdf] 		X-Mas Card
2018
Stefan Schuh
Fast Virtual Character Modelling with Mesh Fusion
[image] 		Bachelor Thesis
image Kurt Leimer, Michael Birsak, Florian Rist, Przemyslaw Musialski
Sit & Relax: Interactive Design of Body-Supporting Surfaces
Computer Graphics Forum, 37(7):349-359, October 2018. [preprint] [video] 		Journal Paper with Conference Talk
Stefan OhrhallingerORCID iD, Michael WimmerORCID iD
StretchDenoise: Parametric Curve Reconstruction with Guarantees by Separating Connectivity from Residual Uncertainty of Samples
In Proceedings of Pacific Graphics 2018, pages 1-4. August 2018.
[image] [paper] [Extended version] [source]		 Conference Paper
Sebastian Mazza
Optimized Sorting for Out-of-Core Surface Reconstruction
[thesis] 		Bachelor Thesis
Lukas Gersthofer
Reduced-Order Shape Optimization Using Offset Surfaces in Blender
[thesis] 		Bachelor Thesis
2017
image Bernhard Steiner, Elham Mousavian, Fatemeh Mehdizadeh Saradj, Michael WimmerORCID iD, Przemyslaw Musialski
Integrated Structural-Architectural Design for Interactive Planning
Computer Graphics Forum, 36(8):80-94, December 2017. [preprint] 		Journal Paper (without talk)
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