In this paper a new marker-based approach is presented for 3D camera pose tracking in indoor Augmented Reality (AR). We propose to combine a circular fiducials detection technique with a particle filter to incrementally compute the camera 3D pose parameters. In order to deal with partial occlusions, we have implemented an efficient method for fitting ellipse to scattered data. So even incomplet...

Local Process Models (LPM) describe structured fragments of process behavior occurring in the context of less structured business processes. Traditional LPM discovery aims to generate a collection of process models that describe highly frequent behavior, but these models do not always provide useful answers for questions posed by process analysts aiming at business process improvement. We propo...

In this paper, we tackle the problem of finding correspondences between three-dimensional reconstructions of a deformable surface at different time steps. We suppose that (i) the mechanical underlying model imposes time-constant geodesic distances between points on the surface; and that (ii) images of the real surface are available. This is for instance the case in spatio-temporal shape from vi...

By formulating a nested test of the asymmetric response model of Bawa, Brown, and Klein (1981), the mean-lower partial moment CAPM (LPMCAPM) of Bawa and Lindenberg (1977) and the mean-variance CAPM of Sharpe (1963, 1964), Lintner (1965) and Mossin (1969), this paper investigates the relative merits of symmetric and asymmetric risk measures using UK equity data for di®erently sized companies and...

This paper presents the realtime processing of optical motion capture with pan-tilt camera tracking. Pantilt camera tracking expands the range of capturing eld dynamically. Asymmetrical marker distribution and polyhedra search algorithm realize robust labeling against marker missing. The algorithm is developed for parallel cluster computation and enables realtime data processing. Experimental r...

Techno-Economic Assessment of Pyrolysis Char Production and Application – A Review Tom Kuppens*, Miet Van Dael, Kenny Vanreppelen, Robert Carleer, Jan Yperman, Sonja Schreurs, Steven Van Passel Hasselt University – Centre for Environmental Sciences – Research group of Environmental Economics, Agoralaan – Building D, 3590 Diepenbeek, Belgium VITO, Boeretang 200, 2400 Mol, Belgium Hasselt Univers...

Salient object detection in videos is challenging because of the competing motion in the background, resulting from camera tracking an object of interest, or motion of objects in the foreground. The authors present a fast method to detect salient video objects using particle filters, which are guided by spatio-temporal saliency maps and colour feature with the ability to quickly recover from fa...

The purpose of this study was to quantify athlete external workload by half, position, match outcome, location, and competition phase (e.g., conference vs non-conference) during play across a men’s NCAA DIII soccer season. Throughout the competitive season, 16 players wore GPS device in 17 matches. Workload metrics collected were: total distance (TD), per minute (D/min), speed zones (SZ) 1-5, s...