Photogrammetric modeling of the relative orientation in underwater environments

Gili Telem, Sagi Filin

Research output: Contribution to journalArticlepeer-review

18 Scopus citations

Abstract

Underwater photogrammetry provides an efficient means for documentation of environments which are complex and have limited accessibility. Yet the establishment of reference control networks in such settings is oftentimes difficult. In this regard, use of the coplanarity condition, which requires neither knowledge of object space coordinates nor setting a reference control network, seems to be an attractive solution. However, the coplanarity relation does not hold in such environments because of the refraction effect, and methods that have been proposed thus far for geometrical modeling of its effect require knowledge of object-space quantities. Thus, this paper proposes a geometrically-driven approach which fulfills the coplanarity condition and thereby requires no knowledge of object space data. Such an approach may prove useful not only for object space reconstruction but also as a preparatory step for application of bundle block adjustment and for outlier detection. All are key features in photogrammetric practices. Results show that no unique setup is needed for estimating the relative orientation parameters using the model and that high levels of accuracy can be achieved.

Original languageEnglish
Pages (from-to)150-156
Number of pages7
JournalISPRS Journal of Photogrammetry and Remote Sensing
Volume86
DOIs
StatePublished - Dec 2013
Externally publishedYes

Keywords

  • Close-range
  • Parameter estimation
  • Relative orientation
  • Underwater photogrammetry

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