Underwater Photogrammetry for ROV

Sponsor: Canadian Hydrographic Services, Dept. of Fisheries and Oceans, and NSERC
Project period: 1993-1996
Principal Investigator: Dr. Ron Li
Project Team: L. Qian, H. Li, W. Zou, R.G. Smith, and T.A. Curran

Description:

The objective of the project was to develop an underwater photogrammetric system for processing underwater video images, thematic data extraction, database generation and data archiving. Data acquisition is performed using an underwater vehicle equipped with CCD cameras. Through a calibration procedure performed periodically, one can determine the positions and orientations of the cameras. A multimedia and multi-lens photogrammetric model has been developed for modeling the special underwater imaging system. Through this model, 3D coordinates of underwater objects can be obtained by measuring corresponding image points in the stereo images. The system has been tested in the underwater environment. This system can be applied in fisheries, oil exploration, seafloor mapping, etc.

E-mail:

<li.282@osu.edu>