TY - CHAP A1 - Rosilius, Maximilian A1 - Wilhelm, Markus A1 - Seitz, Philipp A1 - Von Eitzen, Ingo A1 - Wirsing, Benedikt A1 - Rabenstein, Markus A1 - Decker, Steffen A1 - Bräutigam, Volker T1 - Equalization of the Visibility Loss between AR and Real Stimuli Sizes T2 - 2022 IEEE International Symposium on Mixed and Augmented Reality Adjunct (ISMAR-Adjunct) N2 - The results of the empirical study based on an AR Landolt C vision were examined to compare real and virtual visibility as a function of stimulus size on an HMD (e.g. MS HoloLens 2). A counterbalanced within-subject-design study with n = 32 probands was conducted. The results show on one hand a visibility loss between real and immersive systems by the same size of representation. On the other hand, a transfer function can be derived to ensure comparable visibility between the systems. This transfer function can be used to compensate for the visibility loss as a design guideline for immersive applications. In approximation, the Weber-Fechner's relation can be applied on AR visibility versus size of stimuli. Y1 - 2022 UR - https://ieeexplore.ieee.org/iel7/9973799/9974160/09974190.pdf U6 - https://doi.org/https://doi.org/10.1109/ISMAR-Adjunct57072.2022.00178 SP - 821 EP - 826 PB - IEEE ER - TY - CHAP A1 - Rosilius, Maximilian A1 - Wilhelm, Markus A1 - von Eitzen, Ingo A1 - Decker, Steffen A1 - Damek, Sebastian A1 - Bräutigam, Volker T1 - Sustainable Solutions by the Use of Immersive Technologies for Repurposing Buildings T2 - Global Conference on Sustainable Manufacturing N2 - In the context of urban production and sustainable reuse of existing buildings, a detailed planning of the later usage is indispensable. One approach is to enable large-scale AR simulation on site with a sufficient Level of Detail (LoD) and stability. To determine performance metrics, a technology-stack is created and presented that enables a realistic field experiment in an industrial environment (area of 1,314 m2) using Microsoft HoloLens 2. For the experiment, a 3D model was instantiated as often as possible up to the limit of system stability and in different LoDs (100% down to 10%). The result shows that it is feasible to represent 2.63 million polygons (equivalent to about 1,909 m3 of augmented space) on LOD-35%; LoD-100% is equivalent to 327.38 m3 and 1,284 million polygons. Polygonal density [polygons/m3] is introduced as new indicator for better comparability when using 3D models. Thus, it is possible to immersively visualize urban production planning processes in large-scale scenarios. This expands the functional planning space of Urban Production and overcomes previous technical limitations. Y1 - 2022 U6 - https://doi.org/10.1007/978-3-031-28839-5_62 SP - 551 EP - 558 PB - Springer ER -