基于眼睛图像的集合特征，提出了一种基于最长弦的瞳孔定位算法，算法与传统瞳孔定位算法相比，在准确度和速度方面具有优势-Based on the eye image collection features, this paper proposes a pupil location algorithm based on the longest string, algorithm is compared with the traditional pupil localization algorithm,