People tracking by cooperative fusion of RADAR and camera sensors

Accurate 3D tracking of objects from monocular camera poses challenges due to the loss of depth during projection. Although ranging by RADAR has proven effective in highway environments, people tracking remains beyond the capability of single sensor systems. In this paper, we propose a cooperative RADAR-camera fusion method for people tracking on the ground plane. Using average person height, joint detection likelihood is calculated by back-projecting detections from the camera onto the RADAR Range-Azimuth data. Peaks in the joint likelihood, representing candidate targets, are fed into a Particle Filter tracker. Depending on the association outcome, particles are updated using the associated detections (Tracking by Detection), or by sampling the raw likelihood itself (Tracking Before Detection). Utilizing the raw likelihood data has the advantage that lost targets are continuously tracked even if the camera or RADAR signal is below the detection threshold. We show that in single target, uncluttered environments, the proposed method entirely outperforms camera-only tracking. Experiments in a real-world urban environment also confirm that the cooperative fusion tracker produces significantly better estimates, even in difficult and ambiguous situations

Radar and video as the perfect match : a cooperative method for sensor fusion

Accurate detection and tracking of road users is essential for driverless cars and many other smart mobility applications. As no single sensor can provide the required accuracy and robustness, the output from several sensors needs to be combined. Especially radar and video are a good match, because their weaknesses and strengths complement each other. Researchers from IPI – an imec research group at Ghent University – developed a new technique to optimize radar-video fusion by exchanging information at an earlier stage

Rehabilitation Works Of The Existing Asphalt Pavement And Connecting The Existing Asphalt Pavement With The Newly Constructed Pavement, Motorway E-75, Section Tabanovce - Kumanovo From Km 0+764.70 To Km 8+388.43, Part Of The Corridor X

The Corridor X is part of the pan-European network of corridors. The starting point of the corridor is in Salzburg, Austria and the end point is in Thessaloniki, Greece. The corridor passes through Austria, Slovenia, Croatia, Serbia, Macedonia and Greece. The Construction of the Corridor is supported by the international financing institutions like the European Bank for Reconstruction and Development (EBRD) and the International Bank for Reconstruction and Development (IBRD). The paper refers to one of the sections in R. Macedonia that is under the construction, section between Tabanovce and Kumanovo in length of 7.62 km.Part of the pavement works consisted of rehabilitation of the existing pavement with applying polymer grids, specially designed for such purpose. In the paper the entire procedure of the pavement design will be presented, with particular attention on the quality requirements of the materials that should be for the road construction. Numerical analysis of the pavement was accomplished using the software package PLAXIS. The results of these analyses are presented in the paper, namely: stress fields and zones where the plasticity limit of the materials was reached. The cross section was treated with and without polymer grids. The number of the polymer grids in the cross section was also varied, as well as its location. The presented procedure of the pavement design coul

Making Youth Innovation Visible: An Actor-network Theory Study of the Relationship between Education Environments and Youth Innovation and Youth Innovativeness in Skåne

In the European Union, innovation policies have called for boosting the innovative capacity of youth through education. Despite all efforts made towards this end, however, European economies still find youth innovation to be scarce. This scarcity exists in the region of Skåne too, and is evident in the increasing youth unemployment rates. The objective of this thesis is to shed a new light on this situation through exploring the relationship between the education environment and youth innovation and youth innovativeness in Skåne. I have employed participant observation as the ethnographic strategy to study two case-studies from Skåne: Redesign and Clothing Library ‘Morpheus’ and an educational plumbing practice session. I have used a variety of methods, including interviewing, video recording, notes taking, photography, following of material objects, and following of Facebook activity. I have employed actor-network theory as the theoretical and analytical tool for this thesis. The analysis of the plumbing practice session brings out the problem of visibility: the ways this education environment functions as a network, make it difficult for outsiders to identify the youth innovativeness which exists there. The analysis of Morpheus points out that youth innovation is a network effect which happens through spreading a youth’s idea or project outside of the education system by becoming linked to various material and human actors. This thesis recommends that, in order to boost youth innovation and innovativeness, policy makers should inspire education environments to make their innovative youth, their innovative ideas and projects, visible to society through linking them with external actors, both human and nonhuman, that can make their project grow, gain strength, and attain independence