Image-based 3D Reconstruction and Model Creation

In the past years, the interest and importance of image-based 3d reconstruction has increased significantly in the use of everyday applications. Especially the advancements of modern hardware and state-of-the-art algorithms, with respect to their performance, facilitate the use of real-time 3d information in numerous applications, such as (urban) navigation, scene interpretation, security surveillance, change detection and the operation of autonomous vehicles.

Simultaneous Localization and Mapping (SLAM)

© Fraunhofer IOSB
3D reconstruction of the IOSB building

Point Cloud

© Fraunhofer IOSB
Orthophoto + elevation model of the TMB

The Fraunhofer IOSB offers expertise, algorithms and solutions in a number of different research topics essential to image-based 3d reconstruction:

  • Simultaneous visual self-localisation and mapping (vSLAM), needed for the navigation in an known or unknown envorionment
  • Geographic localisation and registration, as well as calibration of a single camera or a camera network
  • Stereo vision based on a fixed stereo camera system
  • Scene reconstruction from a self-moving camera with Structure-from-Motion (SfM), as well as from a collection of unordered images with Multi-View Stereo (MVS)
  • Creation of digital ortho mosaics (DOMs) and digital elevation models (DEMs)
  • Visualisation of 3d data
  • Use and integration of commercial off the shelf (COTS) photogrammetry software and geoinformation systems (GIS)

Real-time Stereo Reconstruction

 

 

© Fraunhofer IOSB
© Fraunhofer IOSB
© Fraunhofer IOSB
© Fraunhofer IOSB
Reference image
© Fraunhofer IOSB
Colour-coded depth map (red: near, blue: far)
© Fraunhofer IOSB
Overlay of the reference image with depth information