Camera Based 3D Object Reconstruction (English)

3D models with high resolution and high accuracy are very useful for many different applications. As an alternative to active scanners new photogrammetric techniques (e.g. Structure from Motion, SfM) have been coming up in the last years. Although their great strengths they are connected to a computationally complex data processing chain limiting the achievable size and resolution of the models. This paper shows an approach to overcome these limitations by evaluating the DLR's integrated navigation system (IPS) as a useful source for exterior orientation measurements that works well especially in indoor environments. These measurements provide the chance to significantly reduce the effort of the mandatory image matching step that has been identified as the main limiting factor for size and resolution. A test of the approach is presented in the context of creating a 3D model of a coal mine shaft.