AR-Based 3D Virtual Reconstruction of Brick Details

Abstract

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.

A Review on Methods for Measurement of Free Water Surface

“…Authors of [ 70 ] used structure-from-motion photogrammetry for the segmentation, shape and volume determination of large wood assemblages in river systems. Photogrammetry is also an important method for capturing topography and texture in augmented and virtual reality, for example, in the 3D structural modelling of buildings [ 71 ] and underground mines [ 72 ]. Although photogrammetric measurement methodology was initially developed for measuring the geometry of solids, similar algorithms can be used to reconstruct fluid flow on the free surface.…”

Expeditious Low-Cost SfM Photogrammetry and a TLS Survey for the Structural Analysis of Illasi Castle (Italy)

“…In many cases, a simplified model of the building is acceptable for use in seismic analysis by means of the pushover approach [20]. In this context, the use of low-cost sensors, including consumer-level smartphones, which are increasingly used in 3D model reconstruction, proved to be very useful [21,22]. Data obtained from 3D surveys (usually dense point clouds) are not directly suitable for the generation of a numerical model; generally, several operations are necessary [15].…”

Measurements of Complex Free Water Surface Topography Using a Photogrammetric Method

“…Various photogrammetric methods can be used for 3D surface reconstruction, such as silhouette reconstruction, stereo reconstruction, and structure-from-motion algorithms [26]. Among numerous other applications, photogrammetry has been used for the 3D structural modelling of buildings [27] and underground mines [28]. Spreitzer et al [29] used Structure-from-Motion (SfM) photogrammetry for segmentation, shape, and volume determination of large wood assemblages in river systems.…”