Incomplete data need not have a major impact on the quality of 3D reconstructions

(17-12-2021) In his PhD, Maarten Slembrouck investigated how one can generate a 3D reconstruction using multiple cameras to better understand a scene.

Typical applications can be found in augmented and virtual reality, gaming without controllers, sports, rehabilitation,...  Both volumetric reconstructions and skeletal reconstructions are used to create the richest possible context.

Volumetric reconstructions reconstruct a person's volume (3D surface) while skeletal reconstructions derive a simplified skeleton so that the person's posture and movement can be better understood.

"A typical problem that arises when observing objects is occlusion. Occlusion causes objects and persons to be only partially or not at all visible from certain viewing angles. This phenomenon causes incomplete data. By using multiple cameras, I show in my PhD that this incomplete data should no longer have a major impact on the quality of reconstructions," explains Maarten Slembrouck.

"The occlusion in a scene is detected and modelled by the proposed methods so that only the relevant parts in each camera image are used during reconstruction. Moreover, the skeletal reconstruction results show that a sufficiently high precision can be achieved for a lot of applications," Maarten concludes.

Read the entire PhD

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PhD Title: 3D Reconstruction of Persons and Objects Using Multiple Cameras with Overlapping Views in the Presence of Occlusion

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Contact: Maarten Slembrouck, Wilfried Philips, Peter Veelaert

Maarten Slembrouck

Maarten Slembrouck was born in Bruges on July 3, 1989. After his secondary education at Sint-Lodewijks College in Bruges, Maarten went to study industrial engineering in Ghent. In 2007 he started this study at the Hogeschool Gent and finished it successfully with high honors in 2011. With his master’s thesis "Multi-camera motion-controlled computer interface" Maarten won the Barco Awards and the prize of IE-net in the category products, processes and services.

Maarten combined his studies with a top sport status as Short Track athlete of the Belgian national team. In doing so, Maarten qualified for the World Junior Championships in Canada in 2009 and represented Belgium at two European Championships: 2010 (Dresden, GER) and 2011 (Heerenveen, NED).

After his studies Maarten went to work as trainer/coach of the Ghent Short Track club STKG and also as national trainer/coach. In 2018 Maarten was thus part of the Belgian team as a coach at the Winter Olympics in Pyeongchang (South Korea).

During his professional career at Ghent University, Maarten fulfilled several teaching assignments in the Industrial Sciences program at the Faculty of Engineering and Architecture and supervised quite a few master's theses every year.

Maarten has published seven  A1-publications so far, one of which  as first author and has participated in seventeen scientific contributions at international conferences, seven of which  as first author. Furthermore, several parts of his PhD were used in many projects with both academic partners and companies.

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Editor: Jeroen Ongenae - Final editing: Ilse Vercruysse - Illustrator: Roger Van Hecke