Measurement of eye cyclotorsion and pupil centroid shift during corneal refractive surgery;

Research on pupil centroid shift and eye cyclotorsion during laser in situ keratomileusis;

Influencing factors for eye cyclotorsion and pupil centroid shift during LASIK;

The shift of the pupil center relative to the coaxially sighted corneal reflex in Chinese myopic patients under photopic and mesopic conditions

· RESULTS: The mean pupil center while normal was situated nose anode.

Using eye-gaze distinguishing and tracking method based on image processing technology,and it uses Hough method of circle detection to obtain the pupil center′s position and determine the eye-gaze direction,then infers horizontal an-gle and vertical angle of the eyeball rotation,realizing the tracking of eye-gaze direction.

This paper introduces in detail artificial neural network, Kalman filters, pupil orientation and active distinguish, the 4 detection arithmetics in eye-tracking system.

The traditional ASM method carries on the characteristic search using of the initial point which has provided using the person face examination;in the improved algorithm,the paper has used the method of pupil orientation on the initialization and adopted improvement methods of edge restraint,auto-adapted length of stride to effectively improved the ASM method performance.

This paper extracts features of faces according to their diverse characteristics,performs on the achieved image the steps of pre-processing,skin filtration,pupil orientation and mouth-nose detection, combines these procedures with optimization,researches on the algorithms,and gets a whole solution to human face detection.

Design and implementation of pupil location system in facial images;

Application and research on fast pupil location method used in real-time nystagmus detecting system