Indoor Space Measurement with a Mobile Phone Integrated LIDAR Sensor: The Case of the Aizanoi Ancient City Zeus Temple Vaulted Gallery

While topographic measurement devices and methods continue to develop in earth sciences, some measurement tools have been adapted to consumer mobile devices. Mobile technological innovations introduced by Apple in 2020, including the iPad Pro and the iPhone 12 Pro, have facilitated reverse engineering studies with applications designed for different fields, including software for LIDAR sensor-oriented applications. 3D models of objects and structures are produced and documented in digital twin studies such as 3D models, point clouds, and measurement techniques. With the development of this technology in mobile devices, point clouds and solid models of archaeological studies and structures have started to be transferred to CAD environments in different formats. In this study, we aim to produce a coordinated and scaled plan of an archaeological architectural structure with centimeter precision in an indoor environment by using auxiliary measurement devices beyond modelling. The vaulted gallery (Cellar) located under the Temple of Zeus in the Ancient City of Aizanoi in Turkey was spatially transferred to the general plan of the city. In this context, our study serves as an example of how to implement 3D imaging of an interior space where GPS data cannot be obtained, which is a common scenario in underground cities, caves, etc.