Patent ID: 11877800
Assignee: NATIONAL SUN YAT-SEN UNIVERSITY
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 5:
6. A system for detecting blepharoptosis, comprising:
a photography unit configured to capture three eye images including a pupil image gazing forward, a pupil image gazing upward to the maximum extent, and a pupil image gazing downward to the maximum extent, respectively;
a storage unit configured to store a preset blepharoptosis criteria information; and
a processing unit coupled to the photography unit and the storage unit, wherein the processing unit executes an image processing on the eye images to generate the corresponding border images, the processing unit executes an image computing on the eye images and the corresponding border images to obtain a plurality of characteristic variables, and the processing unit performs a calculation according to the plurality of characteristic variables to obtain a characteristic parameter set, and compares the characteristic parameter set with the preset blepharoptosis criteria information to obtain a blepharoptosis severity and a levator function, wherein the plurality of characteristic variables includes position coordinates of an eye profile region, a sclera region, an iris region, a pupil region, a pupil center point, an upper eyelid inferior margin curve, a lower eyelid superior margin curve, a center point of the upper eyelid inferior margin curve and a center point of the lower eyelid superior margin curve, respectively.