By David Sauerwein, Sr. Data Scientist – AWS By Markus Winterholer, Delivery Practice Manager – AWS By Simon Boehmer, Cloud Application Architect – AWS By Ignacio Perez Hallerbach, VP Global Head of Partners & Platform – NavVis Managing existing brownfield buildings is a challenging task because teams usually lack accurate ground truth data. Object detection algorithms are a key technology to automate and scale the creation of a digital building twin, providing a solution to this challenge.