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Whisker detection as a shortest path problem

By Igor Perkon, Andrej Košir, Jurij Tasič and Mathew Diamond


In an attempt to understand how the brain encodes tactile stimuli, neuroscientists commonly investigate how rodents translate whisker motion into a sensory percept. Analysis of whisker dynamics is a challenging task. Rats, have about 30 whiskers per side and in single-viewing angle experiments, occlusion and intersection occur frequently. In this paper we present an unsupervised method for whisker detection. Based on the shortest path optimisation criterion, the method is designed for detecting paths that are smooth, continuous, and connected to the head contour. 1

Year: 2013
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