一种实用的眼睛睁合判断方法

根据实际应用提出一种判别眼睛睁合的方法。克服用积分投影方法判断眼睛时受头发、眉的影响,通过先确定鼻或嘴,再利用优化的灰度面积增长方法进行人眼粗定位,然后改进能量函数的快速贪婪算法找到人眼的精确位置,最终使得人眼睁合两种状态均能够准确判别。在ORL数据库实验表明,此方法识别率较高、速度快、对光照、姿态具有一定的鲁棒性。

A practical method to recognize eyes opening and shutting

According to the practical application, a method to recognize the eyes opening and shutting is presented. Using integral projection to extract the nose or mouth from the face firstly, then coarse eye's feature is extracted by optimally increasing the grey area, which immunizes the affect of hair and eyebrow compared with only using integral projection. The greedy algorithm of the improved energy function finds the eyes, finally the open or close eyes can be recognized. Through experimenting in ORL library, the ration of recognition is high and the method has the characteristics of high speed and robust to illumination and posture.