Wearable device for sight focus positioning and sight focus positioning method

Abstract

The invention discloses a wearable device for sight focus positioning and a sight focus positioning method. The wearable device for sight focus positioning comprises a glasses support, wherein a left glasses frame and a right glasses frame of the glasses frame are both provided with multiple infrared light sources, and the multiple infrared light sources are distributed at different positions of the left glasses frame and different positions of the right glasses frame and are used for irradiating irises from different angles; cameras used for shooting iris images irradiated by the infrared light sources are further installed on the left glasses frame and the right glasses frame respectively; a signal processing unit is further installed on the glasses support and comprises a synchronous control module, the synchronous control module is used for controlling the multiple infrared light sources to be started in a set sequence, and the cameras on the glasses frames where the infrared light sources are located are synchronously triggered to be started to shoot the iris images irradiated by the infrared light sources at the moment the infrared light sources are started. An image processing module is used for processing the iris images and establishing a 3D model of a left eye iris and a 3D model of a right eye iris; the sight focuses of the left eye and the right eye are positioned according to the 3D model of the left eye iris and the 3D model of the right eye iris. By the adoption of the wearable device for sight focus positioning and the sight focus positioning method, high-precision sight focus positioning can be achieved.

Description

technical field [0001] The invention relates to the technical field of gaze tracking, in particular to a wearable device for gaze focus positioning and a gaze focus positioning method. Background technique [0002] Humans obtain a lot of information through the eyes, and at the same time use the eyes to express emotions and ideas. People can obtain the rich information transmitted by the eyes by tracking the focus of sight; and then carry out effective human-computer interaction, as well as research in communication, psychology and other fields. Gaze tracking is the process of using various detection methods to obtain the "gaze point" and ensure that it can be continuously tracked for a period of time. This technology is widely used in human-computer interaction, virtual reality and other fields. [0003] The existing eye-tracking technology often collects faces or facial images through cameras, and uses optical methods to calculate and track the direction of sight. Accor...

AI Technical Summary

Problems solved by technology

The biggest disadvantage of non-wearable devices is that it needs an infrared point light source to illuminate the eyes accurately, so the head position cannot be moved casually; at the same time, it requires high precision of the camera and is easily affected by environmental factors, so it is not easy to promote

Compared with 2D tracking technology, the accuracy and stability have been improved. The main problem is that there are relatively few 3D features available, and only a few feature points can be used to obtain the approximate 3D motion information of the eyeball, but it is impossible to achieve high-precision line of sight positioning.

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