Automated processing of mobile mapping image sequences

Automated approaches to image sequence processing using mobile mapping imagery have been under investigation in the Department of Geomatics Engineering at The University of Calgary. This paper presents an overview of several methods developed for the VISAT™ mobile mapping system at The University of Calgary. Following a brief overview of mobile mapping technology, an analysis of mobile mapping image sequences from the viewpoint of visual motion theory is provided. Particular attention is paid to image and object domain constraints that can be exploited in the processing of mobile mapping image sequences. Several key methods to automated processing of mobile mapping image sequences are then described. These methods can be grouped into two categories, namely, information extraction and image-based trajectory determination (bridging).