Eye movement signal processing method and wearable device for virtual reality head-mounted display

Abstract

The invention relates to an eye movement signal processing method for virtual reality head-mounted display and wearable equipment, and belongs to the field of virtual reality and eye movement data analysis. The method comprises the following steps: extracting a head rotation angle and a two-dimensional fixation point coordinate of an eyeball in a visual window according to head movement data and eye movement data of a subject; mapping the two-dimensional fixation point coordinates in the visual window to a three-dimensional sphere space coordinate system according to the head rotation angle toobtain three-dimensional fixation point coordinates; processing the three-dimensional fixation point coordinates to obtain longitude and latitude fixation point coordinates under a geographic longitude and latitude coordinate system, and analyzing gaze data by adopting a method based on speed and time thresholds; and extracting eye movement features according to the gaze data. According to the invention, the eye movement signals in the virtual reality head-mounted display environment can be accurately collected, the characteristics of common eye movement are extracted, and the calculation process is simple and easy to implement.

Description

technical field [0001] The invention relates to the field of virtual reality and eye movement data analysis, and in particular to an eye movement signal processing method and a wearable device for virtual reality head-mounted display. Background technique [0002] With the vigorous development of information technology and virtual reality (VR) in recent years, more and more panoramic content and applications have begun to appear. Virtual reality technology provides users with an immersive media experience. As a new form of media, 360-degree panoramic content can be placed under a head-mounted display (head-mounted display) for users to browse. Users can choose to display spherical content by moving their heads A part of , the viewing process is more free and interactive. [0003] Visual attention modeling has developed rapidly in the fields of multimedia processing and computer vision in recent years, and has played a huge role in the transmission, compression and processin...

AI Technical Summary

Problems solved by technology

However, the current 2D visual algorithm cannot be directly used in virtual reality and panoramic content. The viewing mode of the user under the head display is different from the typical 2D situation. In the 2D situation, the user fixes the head position and looks forward. Use the rotation and translation of the head to present different scenes, but only watch a part of the whole content at a time

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