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An Approach for Quantitative Evaluation of the Degree of Facial Paralysis Based on Salient Point Detection

Facial paralysis can be on one or both sides of face and one side is much more common. This disease can impose significant psychological and functional impairment to patients. Traditionally, patients with facial paralysis are evaluated and examined by physicians based on manually measurement of certain difference between the two facial sides. In this paper, we describe a new approach for quantitatively estimating the degree of facial paralysis. We first determine key points based on salient point detection. Then the differences between the two facial sides are calculated. The proposed method is proved to be useful and effective in practice.