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Calibration of diverse tracking systems to enable local collaborative mixed reality applications

: Hoppe, Adrian H.; Kaucher, Leon; Camp, Florian van de; Stiefelhagen, Rainer


Chen, Jessie Y.C. (Ed.):
Virtual, Augmented and Mixed Reality. Design and Interaction. 12th International Conference, VAMR 2020. Proceedings. Pt.I : Held as Part of the 22nd HCI International Conference, HCII 2020, Copenhagen, Denmark, July 19-24, 2020, held virtually
Cham: Springer Nature, 2020 (Lecture Notes in Computer Science 12190)
ISBN: 978-3-030-49694-4 (Print)
ISBN: 978-3-030-49695-1 (Online)
International Conference on Human-Computer Interaction (HCI International) <22, 2020, Online>
International Conference on Virtual, Augmented and Mixed Reality (VAMR) <12, 2020, Online>
Conference Paper
Fraunhofer IOSB ()
calibration; shared coordinate system; trajectory; rigid body; virtual reality; augmented reality; local collaboration; quantitative evaluation; qualitative evaluation

Mixed reality (MR) devices offer advantages for a wide range of applications, e.g. simulation, communication or training purposes. Local multi user applications allow users to engage with virtual worlds collaboratively, while being in the same physical room. A shared coordinate system is necessary for this local collaboration. However, current mixed reality platforms do not offer a standardized way to calibrate multiple devices. Not all systems offer the required hardware that is used by available algorithms, either because the hardware is not available or not accessible by developers. We propose an algorithm that calibrates two devices using only their tracking data. More devices can be calibrated through repetition. Two MR devices are held together and moved around the room. Our trajectory-based algorithm provides reliable and precise results when compared to SfM or marker based algorithms. The accurate, but easy to use rotational calibration gesture can be executed effortlessly in a small space. The proposed method enables local multi user collaboration for all six degrees of freedom (DOF) MR devices.