Université de Neuchâtel

Change detection in range imaging for 3D scene segmentation

Schütz, Christian L. ; Hügli, Heinz

In: International Symposium on Lasers, Optics and Vision for Productivity in Manufacturing I (Proceedings of SPIE), 1996, vol. 2786, no. 98, p. 1-9

This paper deals with the problem of segmenting a 3D scene obtained by range imaging. It assumes scenes of arbitrary complexity in which the objects to be recognized are newly added or removed and investigates how the methods of change detection and image difference used in classical image processing can be used in range imaging. In a first step, we consider the case of ideal range images and...

Université de Neuchâtel

Pedestrian Detection by Range Imaging

Hügli, Heinz ; Zamofing, Thierry

In: Proceedings. Conference on Computer Vision Theory and Applications (VISAPP), 2007, p. 1-5

Remote detection by camera offers a versatile means for recording people activities. Relying principally on changes in video images, the method tends to fail in presence of shadows and illumination changes. This paper explores a possible remedy to these problems by using range cameras instead of conventional video cameras. As range is an intrinsic measure of object geometry, it is basically not...