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This paper presents a new image segmentation method that applies an edge-based level set method in a relay fashion. The proposed method segments an image in a series of nested subregions that are automatically created by shrinking the stabilized curves in their previous subregions. The final result is obtained by combining all boundaries detected in these subregions. The proposed method has the following...
The performance of two types of current differential protection criteria is investigated by quantitative analysis. Among which, one is the criterion based on phase current differential (PD), and the other is implemented based on the phase-phase current differential (PPD). Some manufacturers claim that the zero sequence current is removed when PPD based criterion is applied and the sensitivity of the...
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