Gaze Tracking for Routine Neurological Weakness Detection
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Solution Overview
Problem
Existing eye examinations for determining neurological health are time-consuming, require specialized facilities and personnel, and are not commonly practiced due to their complexity.
Innovation Solution
A device and method that utilize an optical display, scanning device, and processing unit to detect gaze direction and derive neurological weaknesses without requiring predetermined stimuli, allowing for automated and cost-effective assessment of neurological health using existing visual stimuli.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional eye examination methods are used to determine neurological health, then measurement precision can be achieved, but the examination becomes time-consuming and requires specialized facilities and personnel
Solution Approach 1:
The system enables automated self-assessment of neurological health by having the subject naturally interact with displayed stimuli while the scanning device automatically tracks eye movements and the processing device autonomously analyzes gaze patterns to detect neurological weaknesses, eliminating the need for examiner intervention in the measurement process
Solution Approach 2:
The patent replaces manual examination procedures with an automated optical system consisting of a scanning device that uses cameras and image processing algorithms to track eye movements, substituting the mechanical interaction between examiner and examinee with an optical-mechanical automated system that continuously monitors and analyzes gaze patterns
2Reliability
If traditional eye examination methods are used, then reliable neurological assessment can be obtained, but device complexity and cost increase due to specialized equipment requirements
Solution Approach 1:
The system uses a standard display device that can present various types of visual stimuli (text, images, videos) for different neurological assessments, and a scanning device that can track eye movements across multiple conditions, making the equipment versatile and applicable to various neurological examinations rather than requiring specialized single-purpose devices
Solution Approach 2:
The system creates a digital model of natural visual behavior by capturing and analyzing the subject's eye movement patterns in response to displayed stimuli, copying the natural gaze behavior that would occur during normal reading or viewing activities, and using this copied behavior data to infer neurological health status through pattern recognition algorithms
3Productivity
If automated gaze tracking is implemented, then productivity increases, but the system requires sophisticated processing algorithms increasing device complexity
Solution Approach 1:
The processing device divides the complex task of neurological assessment into separate analytical modules that independently evaluate different aspects of eye movement (fixation duration, saccade amplitude, pursuit smoothness) and combine results, allowing parallel processing of multiple gaze parameters to increase throughput while managing computational complexity through modular architecture
Data Source
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AI summary
A device (100) for determining a neurological health status of a person (105) comprises an optical display (110) for providing an optical stimulus (115) to the person (105); a scanning device for determining a gaze direction (120) of the person (105) with respect to the optical stimulus (115); a processing device (135) configured to detect a neurological weakness of the person (105) on the basis of the detected gaze direction (120) and a provided optical stimulus (115); and an output device for providing a determination result.