3D Visual Acuity Test Using Brain Wave Cognitive Peaks
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Solution Overview
Problem
Conventional 3D visual acuity test methods are hindered by measurement noise caused by individual abilities unrelated to stereoscopic vision, which interfere between the time a subject cognizes an answer and submits it, making it difficult to accurately measure 3D visual acuity.
Innovation Solution
A 3D visual acuity test method using brain waves that measures the time from when a 3D image is provided to when a cognitive peak for the answer appears in the brain waves, using this time as data to determine 3D visual acuity, thereby removing noise from individual abilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional 3D visual acuity test methods are used to measure the time from when a 3D image is provided to when an answer is submitted, then the measurement process is simple, but measurement noise caused by individual abilities unrelated to stereoscopic vision interferes with accuracy
Solution Approach 1:
The patent introduces brain waves as an intermediary to measure cognitive processing time. EEG electrodes detect brain wave signals, and the cognitive processing time is calculated by measuring the time difference between the stimulus onset and the peak of the P300 wave. This intermediary measurement method eliminates the interference of individual abilities unrelated to stereoscopic vision that affect conventional response-time-based measurements.
Solution Approach 2:
The patent replaces the mechanical response system (manual answer submission) with a physiological measurement system (brain wave detection). Instead of measuring the time until a manual response is given, the system measures the neural processing time directly through EEG, substituting the mechanical action with a physiological indicator that more accurately reflects cognitive processing.
2Measurement precision
If brain wave measurement is introduced to eliminate measurement noise, then measurement accuracy improves, but the test system becomes more complex
Solution Approach 1:
The patent employs the subject's own brain waves as the measurement indicator. The EEG system records the subject's neural activity in response to the visual stimulus, and the cognitive processing time is derived directly from the subject's own P300 wave characteristics. This self-service approach uses the subject's physiological signals themselves as the measurement data, eliminating the need for external response mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method provides highly accurate measurement results by eliminating noise from individual abilities unrelated to stereoscopic vision, allowing for precise determination of 3D visual acuity.
Implementation Method 1
measuring the brain waves of the subject using electroencephalography (EEG)
Data Source
AI summary
The present invention provides a 3D visual acuity test method, including: (a) making a subject cognize how to solve a problem; (b) providing the subject with a 3D image including the problem; and (c) receiving an answer to the problem from the subject, wherein steps (b) and (c) are performed together with measuring the brain waves of the subject, and a time from when the 3D image is provided in step (b) to when a cognitive peak for the answer to the problem appears in the brain waves is measured and used as data for determining the 3D visual acuity.