Shape Matching using Skeleton Context for Automated Bow Echo Detection

Mohammad Mahdi Kamani (1), Farshid Farhat (1), Stephen Wistar (2), James Z. Wang (1)
(1) The Pennsylvania State University, USA
(2) Accuweather Inc., USA

Severe weather conditions cause enormous amount of damages around the globe. Bow echo patterns in radar images are associated with a number of these destructive conditions such as damaging winds, hail, thunderstorms, and tornadoes. They are detected manually by meteorologists. In this paper, we propose an automatic framework to detect these patterns with high accuracy by introducing novel skeletonization and shape matching approaches. In this framework, first we extract regions with high probability of occurring bow echo from radar images, and apply our skeletonization method to extract the skeleton of those regions. Next, we prune these skeletons using our innovative pruning scheme with fuzzy logic. Then, using our proposed shape descriptor, Skeleton Context, we can extract bow echo features from these skeletons in order to use them in shape matching algorithm and classification step. The output of classification indicates whether these regions are bow echo with over 97% accuracy.

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Citation: Mohammad Mahdi Kamani, Farshid Farhat, Stephen Wistar and James Z. Wang, ``Shape Matching using Skeleton Context for Automated Bow Echo Detection,'' Proceedings of the IEEE Big Data Conference, pp. 901-908, Washington, D.C., December 2016.

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Last Modified: December 22, 2016
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