TY  - GEN
A1  - Albert, Justin Amadeus
A1  - Owolabi, Victor
A1  - Gebel, Arnd
A1  - Brahms, Clemens Markus
A1  - Granacher, Urs
A1  - Arnrich, Bert
T1  - Evaluation of the Pose Tracking Performance of the Azure Kinect and Kinect v2 for Gait Analysis in Comparison with a Gold Standard
BT  - A Pilot Study
T2  - Postprints der Universität Potsdam : Reihe der Digital Engineering Fakultät
N2  - Gait analysis is an important tool for the early detection of neurological diseases and for the assessment of risk of falling in elderly people. The availability of low-cost camera hardware on the market today and recent advances in Machine Learning enable a wide range of clinical and health-related applications, such as patient monitoring or exercise recognition at home. In this study, we evaluated the motion tracking performance of the latest generation of the Microsoft Kinect camera, Azure Kinect, compared to its predecessor Kinect v2 in terms of treadmill walking using a gold standard Vicon multi-camera motion capturing system and the 39 marker Plug-in Gait model. Five young and healthy subjects walked on a treadmill at three different velocities while data were recorded simultaneously with all three camera systems. An easy-to-administer camera calibration method developed here was used to spatially align the 3D skeleton data from both Kinect cameras and the Vicon system. With this calibration, the spatial agreement of joint positions between the two Kinect cameras and the reference system was evaluated. In addition, we compared the accuracy of certain spatio-temporal gait parameters, i.e., step length, step time, step width, and stride time calculated from the Kinect data, with the gold standard system. Our results showed that the improved hardware and the motion tracking algorithm of the Azure Kinect camera led to a significantly higher accuracy of the spatial gait parameters than the predecessor Kinect v2, while no significant differences were found between the temporal parameters. Furthermore, we explain in detail how this experimental setup could be used to continuously monitor the progress during gait rehabilitation in older people.
T3  - Zweitveröffentlichungen der Universität Potsdam : Reihe der Digital Engineering Fakultät - 3 
KW  - motion capture
KW  - evaluation
KW  - human motion
KW  - RGB-D cameras
KW  - digital health
Y1  - 2020
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-484130
IS  - 3
ER  - 
TY  - THES
A1  - Borković, Vladimir
T1  - Evaluation kommunaler Sportprojekte zur sozialen Integration von Heranwachsenden
T1  - Evaluation of community sports projects focusing on the social integration of adolescents
N2  - Gegenstand der Studie ist die Evaluation eines kommunalen Sportprojekts. Die Forschungsarbeit entstand aus der wachsenden Erkenntnis heraus, dass es nicht mehr nur um die Entwicklung und Durchführung kommunaler oder sozialer Projekte geht, sondern zunehmend darauf ankommt, die Projektarbeit zu evaluieren, um ihren Einfluss auf die kommunale, soziale und personale Entwicklung zu prüfen und in der Folge die Implementierung zu optimieren. Die unterschiedlichen Schritte in der Definition des theoretischen Rahmens, der Datenanalyse sowie der Erarbeitung der evaluativen Empfehlungen wurden unternommen mit dem Anspruch auf Modellcharakter, um für zukünftige Evaluationsvorhaben entsprechende Standards zu setzen. Die Grundidee des kommunalen Sportprojekts „Straßenfußball für Toleranz“ ist innovativ: Mädchen und Jungen erobern durch gemeinsames Fußballspielen den öffentlichen Raum. Sie spielen ohne Schiedsrichter und nach speziellen Regeln. Das Projekt richtet sich ausdrücklich an sozial benachteiligte Jugendliche und bezieht gleichermaßen Jungen wie Mädchen ein.
N2  - The objective of the study is the evaluation of a community sports project. The thesis originated from the growing perception that it is not only about initiating and implementing a communal or social project but that the focus is increasingly also on the evaluation of the project work in order to measure its impact on communal, social and personal development and to optimise the implementation as a consequence. The different steps in the definition of the theoretical framework, the data analysis as well as the formulation of the evaluative recommendations were conducted with the pretension to set standards for future evaluation projects. The basic concept of the community sports project “Street Football for Tolerance” is innovative: boys and girls jointly conquer public spaces by playing football. They play without a referee and according to special rules. The project explicitly reaches out to socially disadvantaged adolescents, with the aim that boys and girls are equally involved.
KW  - Evaluation
KW  - Sozialisation
KW  - soziale Integration
KW  - Straßenfußball
KW  - evaluation
KW  - socialisation
KW  - social integration
KW  - street football
Y1  - 2010
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-48186
SN  - 978-3-86956-051-9
PB  - Universitätsverlag Potsdam
CY  - Potsdam
ER  -