Research Field Geometry Processing
- Static and Dynamic Scenes Acquisition with Structured Light and Photometric Stereo
- Scan and Mesh Processing
- Optimal Coverage, Automated View and Light Placement, Path Planning
- Fluid simulation for spray processes
- Compression and Level of Detail Techniques
Contact partner: Prof. Dr. rer. nat. Stefan Gumhold
Geometry processing is a research area that has evolved inside the computer graphics community in the 1990s. It addresses the processing of digital 3D models with a focus on simple surface representations like point clouds, polygonal meshes or discretized implicit functions. Further attributes like material properties and texture coordinates are subsumed in the term geometry. The most important processing tasks are
- conversion between representations and the reconstruction of surface models from 3D scans
- registration and fusion, repair, denoising, hole-filling and completion, parameterization of 3D models
- simplification, construction of multi-resolution models and compression
- efficient and intuitive editing of complex 3D models
- geometric, topological and statistical shaped analysis, shape similarity and shape retrieval
- dynamic surface processing, simulation techniques on surfaces and of evolving surfaces
Most important application areas are reverse engineering, cultural heritage, computer-aided design, scientific and biomedical computing, as well as the entertainment industry. The research in geometry processing at the chair of computer graphics focuses on simplification, compression and 3D scan processing.
Results
GPU-based volumetric reconstruction of a tree (Vogelkirsche) from multiple images.
Watch the animation: Baum.gif
Mesh Simplification: Original triangles (gray) stream into buffer (pink) and simplified triangles (gold) stream out.
Watch the animation: Bunny.gif
High density pointcloud of a bridge generated by photogrammetric methods on multiple images.
Virtual snow cover on the "Goldener Reiter" (Famous Equestrian statue of August II the Strong in Dresden).
Project pages related to this research topic
- www.adfex.eu – ESF Junior Research Group "Adaptive förderative Exploration mit Multirobotersystemen" (ADFEX)
- https://tu-dresden.de/ing/informatik/smt/cgv/forschung/forschungsprojekte/KASim – KASim - simulation software to evaluate the estimated cleanability of open systems in the field of food engineering
- www.scads.de – BMBF-funded project „ScaDS Dresden/Leipzig - Competence Center for Scalable Data Services and Solutions“