XR Eye Tracking Collision Areas for Accurate 2D Component Selection
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Solution Overview
Problem
Existing eye tracking technologies in extended reality (XR) devices suffer from low accuracy due to human and system errors, particularly when interacting with 2D windows containing multiple components with hierarchical structures, making it difficult to determine the user's intended interaction.
Innovation Solution
An eye tracking method that determines a collision detection area based on the user's sight start point, direction, and fixation point, allowing for the identification of interactive components by analyzing their positions and relationships within the 2D interactive panel, using a collision detection area to pinpoint the most likely component for interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional eye tracking methods are used to obtain fixation parameters, then the interaction can be controlled, but the accuracy is low due to human errors and system errors
Solution Approach 1:
The patent introduces a collision detection area as an intermediary element between the eye fixation point and the interactive components. This collision detection area serves as a mediator that expands the detection zone beyond the precise but inaccurate fixation point, allowing the system to identify interactive components based on the relationship between the collision detection area and component positions, thereby improving both accuracy and reliability of eye tracking interactions
Solution Approach 2:
The patent transitions from two-dimensional fixation point coordinates to a three-dimensional collision detection area that incorporates spatial relationship information. By adding the dimension of spatial relationship between the collision detection area and interactive components, the system can more accurately determine user intent even when fixation point measurement has errors
2Adaptability or versatility
If the 2D window includes multiple components with hierarchical structure, then the interface functionality is enhanced, but the difficulty in selecting components increases
Solution Approach 1:
The patent segments the 2D window into multiple interactive components with hierarchical structures, allowing the collision detection area to selectively interact with specific components based on their spatial relationships. This segmentation enables the system to distinguish between different components (such as buttons, text, icons) and determine user intent more accurately, reducing the difficulty of component selection while maintaining enhanced interface functionality
Solution Approach 2:
The patent applies local quality by making different parts of the 2D window have different interaction properties through the collision detection area. The collision detection area can be configured with different sizes and detection sensitivities for different component types, allowing the system to adapt to the specific characteristics of each component (e.g., larger detection area for buttons, smaller for text) thereby reducing selection difficulty
Data Source
AI summary
Embodiments of this application provide an eye tracking method and apparatus, a device, a medium, and a program. By obtaining a sight start point, a sight direction, and a fixation point on a 2D interactive panel of a user, and a size parameter of a collision detection area, a position of the collision detection area is determined based on a position of the fixation point and the size parameter of the collision detection area; An interactive candidate component collided with the collision detection area is determined based on the position of the collision detection area and positions of interactive components on the interactive panel; when there are a plurality of candidate components in the interactive panel, one interactive component is determined from the plurality of candidate components based on position relationships between the plurality of candidate components and the sight start point, the sight direction.