caa a22 4500 445295511 CHVBK 20180317142540.0 cr unu---uuuuu 170323e20100601xx s 000 0 eng 10.1007/s11554-009-0138-9 doi (NATIONALLICENCE)springer-10.1007/s11554-009-0138-9 A real-time low-cost marker-based multiple camera tracking solution for virtual reality applications [Elektronische Daten] [Pedro Santos, André Stork, Alexandre Buaes, Carlos Pereira, Joaquim Jorge] One of the reasons of how virtual reality applications penetrate industrial production chains slowly is because of significant investment costs to purchase adequate supporting hardware. As a consequence such applications are only available to major companies and fail to benefit the production processes of small and medium enterprises. In this article, we introduce PTrack, a real-time, low-cost, marker-based multiple camera tracking solution for virtual reality providing the accuracy and scalability usually found in much more expensive tracking systems. PTrack is composed of single camera tracking PTrack Units. Each unit is connected to a video camera equipped with infrared strobes and features a novel iterative geometric pose estimation algorithm which does marker-based single camera tracking and is therefore completely autonomous. Multiple PTrack units successively extend the tracking range of the system. For a smooth transition of tracked labels from one camera to another, camera range areas must overlap to form a contiguous tracking space. A PTrack Sensor Fusion Module then computes the pose of a certain label within tracking space and forwards it to interested applications. A universal test setup for optical tracking systems has been built allowing to measure translational and rotational accuracy of PTrack as well as of competing systems. Springer-Verlag, 2009 Mixed reality nationallicence Optical tracking nationallicence Pose estimation nationallicence Santos Pedro Fraunhofer IGD Darmstadt, Darmstadt, Germany aut Stork André Technical University Darmstadt, Darmstadt, Germany aut Buaes Alexandre CETA SENAI-RS, PPGEE/UFRGS, Porto Alegre, Brazil aut Pereira Carlos CETA SENAI-RS, PPGEE/UFRGS, Porto Alegre, Brazil aut Jorge Joaquim INESC-ID/IST, Lisbon, Portugal aut Journal of Real-Time Image Processing Springer-Verlag 5/2(2010-06-01), 121-128 1861-8200 5:2<121 2010 5 11554 https://doi.org/10.1007/s11554-009-0138-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11554-009-0138-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Santos Pedro Fraunhofer IGD Darmstadt, Darmstadt, Germany aut NATIONALLICENCE 700 1- Stork André Technical University Darmstadt, Darmstadt, Germany aut NATIONALLICENCE 700 1- Buaes Alexandre CETA SENAI-RS, PPGEE/UFRGS, Porto Alegre, Brazil aut NATIONALLICENCE 700 1- Pereira Carlos CETA SENAI-RS, PPGEE/UFRGS, Porto Alegre, Brazil aut NATIONALLICENCE 700 1- Jorge Joaquim INESC-ID/IST, Lisbon, Portugal aut NATIONALLICENCE 773 0- Journal of Real-Time Image Processing Springer-Verlag 5/2(2010-06-01), 121-128 1861-8200 5:2<121 2010 5 11554 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer