Reza Maalek

TL;DR: This research studied the performance of an UWB tracking system in static mode under conditions that can commonly occur on construction sites, namely: the presence of metal objects that reflect UWB signals; best signals being blocked by other objects; tracking metal objects; removing the timing cables; tracking multiple tags simultaneously, and decreased number of receivers.

TL;DR: This manuscript provides a robust framework for the extraction of common structural components, such as columns, from terrestrial laser scanning point clouds acquired at regular rectangular concrete construction projects through geometric primitive as well as relationship-based reasoning.

TL;DR: The suitability of the proposed method for robust segmentation of planar and linear features of contaminated datasets, such as those collected from construction sites, is evaluated in eight datasets acquired from a complex laboratory environment and two construction sites at the University of Calgary.

TL;DR: In this article, the effects of variables, such as speed and heading, on the accuracy of the estimated location of dynamic tags are investigated, and it is shown that the accuracy is inversely proportionate to the speed of the tag, the number of tags being tracked and the complexity of the path on which the tag is moving.

TL;DR: A generic and robust framework for automatic extraction of pipe and flange pairs in pre-fabricated modules using the geometric primitives of the point cloud and shows great promise for generic applicability of the proposed system for fabrication verification purposes.