PristupačnostWorkshop on 3D Scanning in Zagreb
November 14th, 2023, Zagreb, Croatia
Content:
About the Workshop
The Workshop on 3D Scanning is an open workshop focusing on the selected topics in 3D scanning and reconstruction featuring speakers which are collaborating togehter on the 3D Coding project.
Registration
The workshop is open to all interested participants and there is no participation fee.
However, due to the limited capacity of the Gray Hall we kindly ask all interested participants to register.
Program
Location: Grey Hall, Faculty of Electrical Engineering and Computing, Zagreb
| Tuesday, November 14, 2023, Grey Hall | |
|---|---|
| 09:00-09:05 | Opening (PDF) |
| 09:05-09:50 |
Introduction to 3D Fringe Projection Profilometry and Optimal Frequency Selection Abstract: The talk will give a general introduction to 3D fringe projection profilometry introducing and will discuss the problems of fringe pattern design, of wrapped phase, and of phase unwrapping. Next, the specific problem of the selection of fringe parameters will be presented with the focus on the selection of fringe frequencies. One possible strategy for the selection of optimal fringe frequencies which robustifies the phase unwrapping will be presented. Finally, real experiments will be presented and discussed. Presentation: PDF |
| 09:50-10:10 | Coffee Break |
| 10:10-11:00 |
Underwater 3D Laser Scanner with Ray-Tracing Based Multiple Refraction Distortion Minimization Abstract: The talk will discuss laser-based underwater 3D scanning using MEMS steering of the laser beam. Specific aspects which will be covered in detail include backscattering and absorption problems where the current state-of-the-art will be presented. Next, the approach using raytracing based multiple refraction distortion minimization will be presented. Finally, real experiments will be presented and discussed with the emphasis on important limitations. Presentation: PDF
This talk is organized in cooperation with Signal Processing Chapter of the Croatian IEEE Section and with the Croatian Academy of Engineering. |
| 11:10-12:00 |
Meshroom: An Open-Source, Flexible, and Generic 3D Reconstruction Pipeline Abstract: Meshroom is free, open-source software that provides a photogrammetry pipeline for reconstructing 3D scenes from a set of unordered images. It includes other pipelines for fusing multiple low dynamic range images into high dynamic range images, stitching multiple images into a panorama, and estimating the motion of a moving camera. The talk will include a general presentation of the software with the focus on the photogrammetry pipeline and its main features. Selected research projects based on Meshroom will be presented, ranging from augmented reality for laparoscopic surgery to quality assessment of 3D reconstructions. Finally, features currently under development that will allow researchers to conveniently run any kind of pipeline and easily compare the results of different reconstruction methods will be presented, thus promoting the sharing and reproducibility of results.
This talk is organized in cooperation with Signal Processing Chapter of the Croatian IEEE Section and with the Croatian Academy of Engineering. |
| 12:00-12:20 |
The Interference Problem for ToF Cameras |
| 12:20-12:40 |
Calibration of Underwater Structured Light Scanner |
| 12:40-12:45 | Closing |
Organizers
The 3D Coding Project team:
Tomislav Petković, University of Zagreb
Tomislav Pribanić, University of Zagreb
Simone Gasparini, University of Toulouse
Josep Forest, University of Girona
Domagoj Zoraja, University of Zagreb
Signal Processing Chapter of the Croatian IEEE Section
Croatian Academy of Engineering
Gallery
Photographs from the workshop are availabe online.
