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Quantitative experimental comparison of single-beam, sidescan, and multibeam benthic habitat maps

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journal contribution
posted on 2010-11-01, 00:00 authored by Alexandre Schimel, T Healy, D Johnson, D Immenga
Map comparison is a relatively uncommon practice in acoustic seabed classification to date, contrary to the field of land remote sensing, where it has been developed extensively over recent decades. The aim here is to illustrate the benefits of map comparison in the underwater realm with a case study of three maps independently describing the seabed habitats of the Te Matuku Marine Reserve (Hauraki Gulf, New Zealand). The maps are obtained from a QTC View classification of a single-beam echosounder (SBES) dataset, manual segmentation of a sidescan sonar (SSS) mosaic, and automatic classification of a backscatter dataset from a multibeam echosounder (MBES). The maps are compared using pixel-to-pixel similarity measures derived from the literature in land remote sensing. All measures agree in presenting the MBES and SSS maps as the most similar, and the SBES and SSS maps as the least similar. The results are discussed with reference to the potential of MBES backscatter as an alternative to SSS mosaic for imagery segmentation and to the potential of joint SBES–SSS survey for improved habitat mapping. Other applications of map-similarity measures in acoustic classification of the seabed are suggested.

History

Journal

ICES journal of marine science

Volume

67

Issue

8

Pagination

1766 - 1779

Publisher

Academic Press

Location

London, England

ISSN

1095-9289

eISSN

1054-3139

Language

eng

Publication classification

C1.1 Refereed article in a scholarly journal

Copyright notice

2010, Academic Press

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