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Affinity Matting for Pixel-accurate Fin Shape Recovery from Great White Shark Imagery
Author(s) -
Benjamin Hughes,
Tilo Burghardt
Publication year - 2015
Language(s) - English
Resource type - Conference proceedings
DOI - 10.5244/c.29.mvab.8
Subject(s) - pixel , fin , white (mutation) , artificial intelligence , computer vision , computer science , engineering , biology , mechanical engineering , biochemistry , gene
The objective of this paper is to obtain pixel-accurate reconstructions of white shark fins given automatically generated coarse pre-segmentations. Reconstruction performance is compared for affinity matting, colour matting and GrabCut against expert annotated ground truth for a test-set of 120 fin images taken in the wild. For the present domain, we find affinity matting able to most accurately recover fine shape details, whilst being robust to wide baseline trimap initialisations as needed to reconstruct prominent notches on the fin edge.

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