VR Vision Assessment With Eye Tracking for Spatial Balance
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Solution Overview
Problem
Traditional vision testing methods lack dynamic adjustment of test parameters and cannot be implemented in a home environment using household devices, leading to less accurate assessments.
Innovation Solution
Implementing methods and systems using a head-mounted display (HMD) with processors and memory to create a 3D virtual environment for vision testing, including eye image analysis and applying visual processing models to assess various vision parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional vision testing methods are used, then the testing process is simple, but the measurement precision and adaptability are insufficient
Solution Approach 1:
The patent implements dynamic adjustment of test parameters including virtual stimulus position, size, and duration based on real-time eye tracking data. The system adapts the visual assessment protocol dynamically during testing to optimize measurement precision while maintaining user engagement and comfort.
Solution Approach 2:
The patent introduces an intermediary eye tracking system that captures eye images and processes them through a visual processing assessment model to determine gaze positions. This intermediary layer enables precise measurement of visual processing performance without directly complexifying the user's interaction with the test.
2Adaptability or versatility
If traditional vision testing methods are used, then the device requirements are minimal, but the adaptability to different environments and conditions is limited
Solution Approach 1:
The patent creates a universal vision testing system that can be implemented in multiple environments (home, clinic, research) using various devices including HMDs, smartphones, and tablets. The system accommodates different user populations and testing conditions through configurable parameters and adaptable protocols.
Solution Approach 2:
The patent implements parameter changes in stimulus presentation including variable duration, position, and size of visual stimuli. The system adjusts these parameters dynamically based on user performance and environmental conditions, enabling adaptation to different testing scenarios without requiring complete system redesign.
3Measurement precision
If dynamic adjustment of test parameters is implemented, then the measurement precision improves, but the device complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where eye tracking data is continuously processed to determine gaze positions, which then feed back into the test protocol adjustment. The visual processing assessment model analyzes eye images and stimulus positions to dynamically modify testing parameters in real-time, optimizing measurement precision through closed-loop control.
Data Source
AI summary
Spatial awareness and balance of a user's visual system can be assessed in a virtual environment. An electronic device, such as a head-mounted display, can display a destination and a target path leading to the destination in a 3D virtual environment, and the target path can follow at least one direction. The electronic device can render a request for a user associated with the electronic device to follow the target path to reach the destination. The electronic device can obtain a stream of sensor data from the one or more motion sensors collected from the one or more motion sensors while the user moves along the target path. Based on the stream of sensor data, the electronic device can determine a directionality indicator of the user's visual system quantitatively representing a capability of the user's visual system following the at least one direction.