Abstract:

Based on advanced symmetry transform,a pupil localization method was studied.In
order to solve low accuracy problem of localization because of reflection of lig
ht bringing of glasses,overspread of eyes and closed eyes,etc, the symmetry transfor
m method was improved based on different gradient information between area of pu
pil and area of reflecting light of glasses.In order to improve accuracy of loca
lization,a self evaluation method was applied.Experiment results o
f collected pictures and pictures in library showed that the method can localize the situation of pupil precisely

Key words: pupil localization, symmetry transform, selfevaluation