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dc.contributor.authorSchimel, Alexandre Carmelo Gregory
dc.contributor.authorHealy, Terry R.
dc.contributor.authorJohnson, David
dc.contributor.authorImmenga, Dirk
dc.identifier.citationSchimel, A.C., Healy, T.R., Johnson, D. & Immenga, D. (2010). Quantitative experimental comparison of single-beam, sidescan, and multibeam benthic habitat maps. ICES Journal of Marine Science: Journal du Conseil, 67.en_NZ
dc.description.abstractMap 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.en_NZ
dc.publisherOxford University Pressen_NZ
dc.subjectaverage of mutual information (AMI)en_NZ
dc.subjectcontingency matrixen_NZ
dc.subjectCramér's Ven_NZ
dc.subjectGoodman–Kruskal's lambdaen_NZ
dc.subjectkappa statisticen_NZ
dc.subjectTheil's uncertainty coefficienten_NZ
dc.titleQuantitative experimental comparison of single-beam, sidescan, and multibeam benthic habitat mapsen_NZ
dc.typeJournal Articleen_NZ
dc.relation.isPartOfICES Journal of Marine Scienceen_NZ

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