System and method for measurement of visual acuity based on the analysis of user eye movements

摘要

The present invention uses a user's gaze movement to display a marker for measuring eyesight on a screen of a smart phone carried by a user, and to measure a user's eyesight naturally only by following the measuring mark without the user's input. A method and system for measuring vision is disclosed. An eye sight measurement system using the disclosed user gaze movement includes: a camera image input unit for inputting a face image captured by capturing a user's face; An eye image extraction unit for extracting the position, area, and information of the eye from the facial image and extracting a binocular distance value based on the position of the eye; A distance calculator that calculates a distance from the user based on the binocular distance value; A screen generation unit for each sight to generate a screen to display while moving a measurement mark corresponding to each sight value according to a distance from the user; A screen display unit for displaying and outputting the generated screen; A gaze position extraction unit for extracting a gaze position of a pupil moving along a moving measurement mark; A gaze matching detection unit that detects whether the movement position of the measurement mark matches the gaze position of the pupil; And a visual acuity determining unit that determines a visual acuity value according to whether the movement position of the measurement mark matches the gaze position of the pupil.