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03-09-2020 | Regular Paper | Issue 6/2020

Journal of Visualization 6/2020

Visual extraction system for insulators on power transmission lines from UAV photographs using support vector machine and color models

Journal:
Journal of Visualization > Issue 6/2020
Authors:
Chi Zhang, Qing-wu Gong, Ting Wang, Koji Koyamada
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Abstract

In this paper, a system is proposed for extracting insulators on power transmission lines from photographs captured by an unmanned aerial vehicle. The approximate regions of the insulators are first determined by a support vector machine with the histogram of oriented gradients as the feature descriptor. Then, the specific regions of insulators are detected and extracted by the GrabCut algorithm. In advance, some constraint conditions, such as the value ranges of color component values as well as the relationships between the component values in three color models, need to be specified. In our system, an interactive interface is developed to help determine these conditions. According to the experimental results, our system is capable of removing most of the backgrounds and extracting the insulators from photographs.

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