Abstract
Abstract. The demand for capturing outdoor and indoor scenes is rising with the digitalization trend in the construction industry. An efficient solution for capturing these environments is mobile mapping. Image-based systems with 360° panoramic coverage allow a rapid data acquisition and can be made user-friendly accessible when hosted in a cloud-based 3D geoinformation service. The design of such a 360° stereo camera system is challenging since multiple parameters like focal length, stereo base length and environmental restrictions such as narrow corridors are influencing each other. Therefore, this paper presents a toolset, which helps configuring and evaluating such a panorama stereo camera rig. The first tool is used to determine, from which distance on 360° stereo coverage depending on the parametrization of the rig is achieved. The second tool can be used to capture images with the parametrized camera rig in different virtual indoor and outdoor scenes. The last tool supports stitching the captured images together in respect of the intrinsic and extrinsic parameters from the configuration tool. This toolset radically simplifies the evaluation process of a 360° stereo camera configuration and decreases the number of physical MMS prototypes.
Highlights
In recent years, image-based mobile mapping has evolved into a highly efficient and accurate mapping technology for collecting 3D data, which a cloud-based web service can provide. Novak (1991) and Schwarz et al (1993) designed first stereovisionbased mobile mapping systems (MMS)
Investigations in mobile mapping at the Institute of Geomatics (IGEO), University of Applied Sciences and Arts Northwestern Switzerland (FHNW) started in 2009 with the development of an image-based MMS, which has evolved to a multi-stereo camera system (Burkhard et al, 2012)
Existing stereoscopic panoramic camera system like described above lack in possibility to adapt for indoor mobile mapping applications
Summary
Image-based mobile mapping has evolved into a highly efficient and accurate mapping technology for collecting 3D data, which a cloud-based web service can provide. Novak (1991) and Schwarz et al (1993) designed first stereovisionbased mobile mapping systems (MMS). Investigations in mobile mapping at the Institute of Geomatics (IGEO), University of Applied Sciences and Arts Northwestern Switzerland (FHNW) started in 2009 with the development of an image-based MMS, which has evolved to a multi-stereo camera system (Burkhard et al, 2012). The toolset consists of a stereo coverage tool, which lets users evaluate, from which distance on there is depth information available, a camera rig configuration tool that can be used to configure a stereo system, place it in virtual 3D scenes, and capture images. These captured images can be composed with a panoramic tool and the resulted panoramic image can be evaluated.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
