Building heritage contributes to the historical context and industrial history of a city. Brick warehouses, which comprise a systematic interface between components, demand an interactive manipulation of inspected parts to interpret their construction complexity. The documentation of brick details in augmented reality (AR) can be challenging when the relative location needs to be defined in 3D. This study aimed to compare brick details in AR, and to reconstruct the interacted result in the correct relative location. We applied photogrammetry modeling and smartphone AR for the first and secondary 3D reconstruction of brick warehouse details and compared the results. In total, 146 3D AR database models were created. The AR-based virtual reconstruction process applied multiple imagery resources from video conferencing and broadcast of models on the Augment® platform through a smartphone. Tests verified the virtual reconstruction in AR, and concluded the deviation between the final secondary reconstructed 3D model and the first reconstructed model had a standard deviation of less than 1 cm. AR enabled the study and documentation of cross-referenced results in comparison with the simplified reconstruction process, with structural detail and visual detail suitable for 3D color prints.
Abstract-Three-dimensional virtual experiment system to create a highly realistic learning situation, MOOC for the rise of virtual experimental teaching provides technical support, so that it has the characteristics of experimental resource sharing and remote collaboration. "Virtual classroom" virtual experiment system to support multi-user online operation at the same time, to a certain extent, improve the traditional experimental resources, the shortcomings of the lack of resources. Through the use of virtual instruments, analog devices to achieve long-range practice teaching process, the formation of knowledge, learning and practice integration of the new education system.
The manufacture of brick in Taiwan started since Qing Dynasty. In order to understand the historical context of a city and its industry history, case study was made to two old brick warehouses. This study aims to cross-reference brick warehouses for the evolving application of construction materials and methods, based on the brick joints made on walls or openings. A photogrammetry modeling approach was applied to reconstruct the buildings and details of each warehouse. An AR-based comparison was made on Augmented® platform using smartphone for on-site and remote comparison. The novelty redefined the connection between process and configuration through a looped interaction between AR and 3D models. The flexibility of smartphone and the portability of cloud-based 3D AR database enabled a former reconstructed result to be remodeled as the reference for follow-up reconstruction process of brick components.
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