A Test of Computer-assisted Matching Using the North Pacific Humpback Whale, Megaptera novaeangliae, Tail Flukes Photograph Collection

Mizroch, Sally A. and Harkness, Suzanne A. D. (2003) A Test of Computer-assisted Matching Using the North Pacific Humpback Whale, Megaptera novaeangliae, Tail Flukes Photograph Collection. Marine Fisheries Review, 65(3), pp. 25-37.

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Official URL: http://spo.nmfs.noaa.gov/mfr653/mfr6532.pdf

Abstract

Testing was conducted of a computer-assisted system for matching humpback whale tail flukes photographs. Trials with a 12,000-photographs database found no differences in match success between matching by computer and matching by comparing smaller catalogs ranging in size from 200 to 400 photographs. Tests with a 24,000-photographs database showed that, on average, the first match was found after examining about 130 photographs whether the photograph quality was excellent, good, or poor. Match success did not appear to be strongly related to whether the tail flukes had especially distinctive markings or pigment patterns (recognition quality). An advantage of computer-assisted matching is the ability to compare new photographs to the entire North Pacific collection, where no bias is introduced based on expectation of resightings within or between specific areas, or based on expectation of behavioral role (e.g. matching “known” females to “known” females).

Item Type: Article
Title: A Test of Computer-assisted Matching Using the North Pacific Humpback Whale, Megaptera novaeangliae, Tail Flukes Photograph Collection
Personal Creator/Author:
CreatorsEmail
Mizroch, Sally A.
Harkness, Suzanne A. D.
Refereed: Yes
Journal or Publication Title: Marine Fisheries Review
Volume: 65
Number: 3
Page Range: pp. 25-37
Date: 2003
ISSN: 0090-1830
Issuing Agency: United States National Marine Fisheries Service
Subjects: Conservation
Fisheries
Management
Item ID: 9732
Depositing User: Patti M. Marraro
Date Deposited: 15 Aug 2012 18:10
Last Modified: 15 Aug 2012 18:10
URI: http://aquaticcommons.org/id/eprint/9732

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