Gaze-Based Positioning Using Auxiliary Object
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Solution Overview
Problem
Image capturing-based positioning methods face challenges in precision due to the inability to accurately determine the relative position of the camera to the shot image, leading to decreased positioning accuracy.
Innovation Solution
A method and system that acquire a reference direction, determine the user's gaze on an auxiliary positioning object, calculate the distance and angle relative to the object, and use this information to obtain the user's position, thereby improving positioning precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If positioning is implemented by using an image shot by a camera, then the positioning method is easy to implement and mobile terminals are popular, but the positioning precision declines because the position of the camera cannot be equivalent to the position of the shot image
Solution Approach 1:
The patent introduces an auxiliary positioning object as an intermediary between the camera and the target position. The auxiliary positioning object serves as a reference point that allows the system to calculate the camera's position relative to the shot image position, thereby resolving the discrepancy between camera position and image position without complicating the overall positioning method
Solution Approach 2:
The patent adds a new dimension of measurement by determining not only the position of the shot image but also the relative position of the camera to the shot image. This dimensional expansion allows for more accurate positioning by accounting for the offset between camera and image positions through calculating distance and angle relationships
2Device complexity
If the position of the shot image is determined directly without considering camera relative position, then the positioning process is simplified, but the positioning precision declines
Solution Approach 1:
The patent performs preliminary action by determining the relative position parameters (distance and angle) between the camera and the auxiliary positioning object before final positioning calculation. This preliminary determination of camera-to-image position relationship allows for more accurate final positioning while maintaining a systematic and organized process flow
3Measurement precision
If the relative position of camera and shot image is determined, then positioning precision is improved, but the positioning process becomes more complex
Solution Approach 1:
The patent employs feedback by using the determined relative position information (distance and angle between camera and auxiliary positioning object) to correct and refine the final position calculation. This feedback mechanism ensures that the camera's relative position to the shot image is accounted for, improving positioning precision while maintaining a logical process structure
Data Source
AI summary
Embodiments of the present application provide a positioning method and a positioning system. The method comprises: obtaining a reference direction corresponding to a user; determining that an eye of the user is gazing at an auxiliary positioning object; acquiring position information of the auxiliary positioning object; acquiring a distance of the user relative to the auxiliary positioning object; acquiring an angle of a sight line direction of the user relative to the reference direction; and obtaining position information of the user according to the position information of the auxiliary positioning object, the distance of the user relative to the auxiliary positioning object, the reference direction, and the angle of the sight line direction of the user relative to the reference direction.