Structured light scanning is a versatile method for 3D shape acquisition

Low-cost sensors such as Microsoft Kinect and time of flight cameras have made the 3D sensor ubiquitous and have resulted in a vast amount of new applications and methods. However, such low-cost sensors are generally limited in their accuracy and precision, making them unsuitable for e.g. accurate tracking and pose estimation.

With recent improvements in projector technology, increased processing power, and methodology, it is possible to perform faster and more reliable structured light scans. This offers new opportunities for studying dynamic scenes, quality control, human-computer interaction and more.

We discusses several aspects of structured light systems and present contributions within calibration, scene coding, and motion correction aspects.

Project 1

About the project

We investigate the process of optical surface scanning to see if the statistical quality can reach a level high enough for such a scanner to be used as a full grade metrological device.


Superaccurate camera calibration via inverse rendering [2019]

M. Hannemose, J. Wilm, J. R. Frisvad
Modeling Aspects in Optical Metrology VII , Proceedings of SPIE, vol. 11057, 1105717

Development and metrological validation of a new automated scanner system for freeform measurements on wind turbine blades in the production [2019]

R. A. Lyngby, E. Nielsen, L. D. Chiffre, H. Aanæs, A. B. Dahl
Precision Engineering , 56, 255-266

Autonomous Optical Inspection of Large Scale Freeform Surfaces [2018]

R. A. Lyngby
Department of Applied Mathematics and Computer Science, Technical University of Denmark

Scene reassembly after multimodal digitization and pipeline evaluation using photorealistic rendering [2017]

J. D. Stets, A. Dal_Corso, J. B. Nielsen, R. A. Lyngby, S. H. N. Jensen, J. Wilm, M. B. Doest, C. Gundlach, E. R. Eiriksson, K. Conradsen, A. B. Dahl, J. A. Bærentzen, J. R. Frisvad, H. Aanæs
Applied Optics , 56, 7679-7690

An Error Analysis of Structured Light Scanning of Biological Tissue [2017]

S. H. N. Jensen, J. Wilm, H. Aanæs
Image Analysis (Proceedings of SCIA 2017) , Springer, Lecture Notes in Computer Science, vol. 10269, 135-145

Precision and Accuracy Parameters in Structured Light 3-D Scanning [2016]

E. R. Eiriksson, J. Wilm, D. B. Pedersen, H. Aanæs
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences , XL-5/W8, 7-15

Real Time Structured Light and Applications [2016]

J. Wilm
Department of Applied Mathematics and Computer Science, Technical University of Denmark


Janus Nørtoft Jensen
[Ph.D. Student]
Technical University of Denmark
Florian Gawrilowicz
[Ph.D. Student]
Technical University of Denmark
Søren Schou Gregersen
[Assistant Professor]
Technical University of Denmark
Jakob Wilm
[Assistant Professor]
University of Southern Denmark