Eye movement interaction method and system based on laser visual feedback

Abstract

The invention provides an eye movement interaction method and system based on laser visual feedback, the system comprises an eye movement tracking system, a visual feedback system and a steering engine holder control system. The eye movement tracking system comprises a glasses frame, a human eye camera, an infrared lamp, a scene camera, an anti-skid rubber sleeve, a support, a first USB line and a second USB line; the visual feedback system comprises a laser device, a horizontal steering engine, and a vertical steering engine, the horizontal steering engine is arranged on the vertical steering engine, and the laser device used for emitting laser to a target object is arranged on the horizontal steering engine. The steering engine holder control system is used for outputting a control signal to adjust the orientation of the horizontal steering engine and the vertical steering engine according to the position, mapped to a human eye mapping fixation point of a coordinate system where the laser spot image is located, of the fixation point in the human eye image and the position of the laser spot in the laser spot image. The tracking precision can be improved.

Description

technical field [0001] The present invention relates to the technical field of information interaction, in particular to an eye movement interaction method and system based on laser visual feedback. Background technique [0002] Amyotrophic Lateral Sclerosis (ALS) is a unique and terrifying condition that causes patients to irreversibly lose the ability to control their muscles. During the course of the disease, patients are fully conscious but unable to interact with their surroundings like normal people. Among them, eye movement is one of the last muscle control functions that ALS patients lose. Therefore, computer-aided interaction (CAI, Computer Aided Instruction)-based eye-tracking technology can be used to obtain the eye-movement intention of ALS patients, and perform corresponding operations according to the eye-movement intention, so as to achieve longer interaction with patients and facilitate ALS patients. The patient's life, but also relieve the mental pain of AL...

AI Technical Summary

Problems solved by technology

However, the current head-mounted eye-tracking equipment cannot provide visual feedback to the patient to indicate the fixation point after the head-mounted eye-tracking device obtains the fixation point corresponding to the fixation point of the ALS patient. Therefore, ALS patients cannot determine Whether the head-mounted eye-tracking device accurately tracks the gaze point, the tracking accuracy is low, and the operation accuracy based on the gaze point is low; furthermore, the lack of a real-time feedback mechanism will also make ALS patients feel uncomfortable during the interaction. fatigue

Images