Facial paralysis objective evaluation method and system thereof

Abstract

The invention discloses a facial paralysis objective evaluation method and a system thereof. The method is characterized by comprising the following steps: acquiring a face image of a patient with facial paralysis by virtue of an image acquisition device 1; acquiring a face characteristic point detection module, and detecting out face characteristic points in the face image in accordance with theacquired face image of the patient with the facial paralysis; in accordance with the detected face characteristic points, extracting out face symmetry characteristics; and acquiring a facial paralysishierarchical classifying device, wherein by virtue of the facial paralysis hierarchical classifying device, a facial paralysis classifying evaluation result of the patient with the facial paralysis can be automatically determined in accordance with the face symmetry characteristics. According to the facial paralysis objective evaluation method and the system thereof provided by the invention, face structure symmetry is quantified in accordance with the face symmetry characteristics, and the facial paralysis classifying evaluation result is automatically obtained by calculating the face symmetry characteristics, so that subjective bias is eliminated; with the assistance of the method and the system, the facial paralysis classifying evaluation result can be accurately and rapidly acquired by clinical doctors, and a proper treatment scheme can be made for the patient with the facial paralysis, so that a foundation is laid for improving the curative effect of rehabilitation treatment.

Description

【Technical field】 [0001] The invention relates to facial paralysis assessment, in particular to an objective assessment method and system for facial paralysis. 【Background technique】 [0002] Facial paralysis is a kind of common and frequently-occurring disease, and its cardinal symptom is that facial expression muscle group can't carry out normal functional movement. According to the difference of nerve damage position, facial paralysis is divided into peripheral facial paralysis and central. Peripheral facial paralysis is caused by nerve nuclei and damage, and shows as total muscle facial paralysis on the same side of the lesion. This type of paralysis is mostly caused by wind-cold, ear or meningeal infection. Central facial paralysis originates from damage to the position above the facial nerve nucleus, and shows as paralysis of the lower facial muscles on the opposite side of the damaged part, and is more common in cerebrovascular diseases. [0003] Although facial par...

AI Technical Summary

Problems solved by technology

The system can better distinguish patients with facial paralysis and normal people, but it is unable to grade and evaluate patients with facial paralysis. In addition, Hontanilla and Auba proposed a 3D multi-camera acquisition system for facial information calculation. The evaluation results given by this system It is objective and sensitive, and its disadvantage is that it needs to paste markers on the patient's face, so although the evaluation results of this system are good, it is inconvenient to use and will have a certain impact on patients

[0007] As mentioned above, the existing subjective facial paralysis grading and evaluation methods and objective facial paralysis grading and evaluation methods have certain shortcomings. They cannot conveniently and objectively determine the grading results of facial paralysis, which is not conducive to improving the rehabilitation treatment effect of facial paralysis.

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