Entwicklung eines neuen Low-Cost-Innenraum-Aufnahmesystems - System aufbau, Systemkalibrierung und erste Ergebnisse

For the recording of interior rooms different 2D and 3D surveying systems are available. These systems differ substantially in price and accuracy as well as in expenditure for data acquisition and post-processing. The laboratory for Photogrammetry & Laser Scanning of the HafenCity University (HCU) Hamburg develops a low-cost indoor imaging system within the framework of an industrial project, which allows a systematic recording of building areas in 3D with small personnel requirements and calculable expenditure of time. The modelling and evaluation of the recorded data proceeds later in the office. The 3D imaging system combines a panorama imaging system with a laser range finder, where the laser point is imaged in each recorded single photo. The individual recorded images are composed to a 360° panoramic image with spherical projection. Additionally, distance measurements are available in the resulting panorama photo for each laser point, which are used for determination of 3D coordinates. Finally, the indoor room can be modelled by determination of spatial planes on basis of the panoramic photo and the 3D coordinates of each laser point using a 3D modelling software. In this contribution, the system configuration, the system calibration of camera and laser range finder as well as first results of 3D indoor imaging are presented.