Measuring method of inclination angle of human eyes

Abstract

The invention discloses a measurement method of a human eye front dip angle. The method comprises the steps of building an image processing model; fixing positions and gestures of a human face and a camera, wherein the height of the camera is consistent with the height of a human eye; marking target positions of a superior orbit and an inferior orbit of the human eye; acquiring a side face image;extracting human eye position characteristics and mark color characteristics from the acquired image; performing binarization processing on the color characteristics; performing scanning detection ona target pixel from top to bottom and from left to right, wherein an included angle between a diagonal line and a natural vertical surface of a mark region in the image is the human eye front dip angle; and solving the human eye front dip angle value by arc-tangent function value. By the method, human eye front dip angle measurement data is obtained by acquiring the human eye image and correspondingly marking a to-be-measured position of a face part and by calculation and measurement of a computer, the measurement process is simple and convenient, the measurement accuracy is improved, and datastorage is convenient.

Description

technical field [0001] The invention relates to a method for measuring the inclination angle of human eyes. Background technique [0002] The inclination angle of the human eye refers to the angle between the line connecting the upper and lower eye sockets of the eyes and the natural vertical plane when the head is straightened. The forward inclination angle of the glasses refers to the angle between the plane of the lens ring and the natural vertical plane when the temples are in a horizontal state. The angle at which the lenses are worn will affect the actual wearing degree of the glasses. The measurement of the inclination angle of the human eye plays an important role in the design process of the glasses. The appropriate design method of the glasses is that the forward inclination angle of the glasses is consistent with that of the human eye to achieve the best comfort. However, each person's face shape is different, so the angle of the inclination angle of the eyes is ...

AI Technical Summary

Problems solved by technology

[0004] At present, the measurement of the inclination angle of the human eye is mainly a mechanical method. By using various angle scales to measure, the angle scale is usually fixed on the head, or the head-mounted mechanical angle measuring device is used to realize the inclination angle of the human eye; these measurement methods are in During the measurement process, it is necessary to carry out wearing adjustments and select a suitable measurement angle, so there will be some inconvenience in the actual measurement process, and the measurement accuracy is poor

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