Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2, 885-892, 2018
https://doi.org/10.5194/isprs-archives-XLII-2-885-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
 
30 May 2018
DIVERS-OPERATED UNDERWATER PHOTOGRAMMETRY: APPLICATIONS IN THE STUDY OF ANTARCTIC BENTHOS
P. Piazza1,2, V. Cummings3, D. Lohrer4, S. Marini5, P. Marriott3, F. Menna6, E. Nocerino7,8, A. Peirano9, and S. Schiaparelli1,10 1MNA, Italian National Antarctic Museum, Section of Genoa, University of Genoa, Genoa, Italy
2DSFTA, Department of Physical Sciences, Earth and Environment, University of Siena, Siena, Italy
3NIWA, National Institute of Water & Atmospheric Research, Wellington, New Zealand
4National Institute of Water & Atmospheric Research, Hamilton, New Zealand
5CNR/ISMAR-SP, Research National Council, Institute of Marine Science U.O.S. La Spezia, Lerici (La Spezia), Italy
63D Optical Metrology (3DOM) unit, Bruno Kessler Foundation (FBK), Trento, Italy
7LSIS, I&M Team, Aix-Marseille Universite, Polytech Luminy, Marseille, France
8Theoretical Physics, ETH Zurich, Zurich, Switzerland
9ENEA, Marine Environment Research Center, Lerici (La Spezia), Italy
10DISTAV, Department of Earth, Environmental and Life Sciences, University of Genoa, Genoa, Italy
Keywords: Benthos, 3D models, video samplings, diver-operated underwater photogrammetry, Antarctica, historical videos, 3D features detecting Abstract. Ecological studies about marine benthic communities received a major leap from the application of a variety of non-destructive sampling and mapping techniques based on underwater image and video recording. The well-established scientific diving practice consists in the acquisition of single path or ‘round-trip’ over elongated transects, with the imaging device oriented in a nadir looking direction. As it may be expected, the application of automatic image processing procedures to data not specifically acquired for 3D modelling can be risky, especially if proper tools for assessing the quality of the produced results are not employed. This paper, born from an international cooperation, focuses on this topic, which is of great interest for ecological and monitoring benthic studies in Antarctica. Several video footages recorded from different scientific teams in different years are processed with an automatic photogrammetric procedure and salient statistical features are reported to critically analyse the derived results. As expected, the inclusion of oblique images from additional lateral strips may improve the expected accuracy in the object space, without altering too much the current video recording practices.
Conference paper (PDF, 1110 KB)

Citation: Piazza, P., Cummings, V., Lohrer, D., Marini, S., Marriott, P., Menna, F., Nocerino, E., Peirano, A., and Schiaparelli, S.: DIVERS-OPERATED UNDERWATER PHOTOGRAMMETRY: APPLICATIONS IN THE STUDY OF ANTARCTIC BENTHOS, Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2, 885-892, https://doi.org/10.5194/isprs-archives-XLII-2-885-2018, 2018.

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