Improvement of GrabCut form Kumamoto Castle Ishigaki region extraction method

Y. Yamasaki; M. Migita; G. Koutaki; M. Toda; T. Kishigami

doi:10.1117/12.2591036

13 March 2021 Improvement of GrabCut form Kumamoto Castle Ishigaki region extraction method

Y. Yamasaki, M. Migita, G. Koutaki, M. Toda, T. Kishigami

Proceedings Volume 11766, International Workshop on Advanced Imaging Technology (IWAIT) 2021; 117662S (2021) https://doi.org/10.1117/12.2591036
Event: International Workshop on Advanced Imaging Technology 2021 (IWAIT 2021), 2021, Online Only

Abstract

In this paper, we improve the extraction method by GrabCut in order to perform highly accurate stone contour extraction from stone wall images. In previous studies, there was a problem that over-segmentation and under-segmentation occurred because the area considered to be the background characteristics could not be specified properly. As a countermeasure to this problem, in order to make the method of specifying the restrict range for the background characteristics more suitable for stone materials, we aimed to improved the extraction accuracy by using the convex hull of the area obtained by ordinal GrabCut. Good results were obtained by limiting the characteristics due to the contraction of the convex hull, but some stones had insufficient segmentation, the cause was investigated, and future measures were described.

Citation Download Citation

Y. Yamasaki, M. Migita, G. Koutaki, M. Toda, and T. Kishigami "Improvement of GrabCut form Kumamoto Castle Ishigaki region extraction method", Proc. SPIE 11766, International Workshop on Advanced Imaging Technology (IWAIT) 2021, 117662S (13 March 2021); https://doi.org/10.1117/12.2591036

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