Systems and methods for evaluating human eye tracking
Inventors
GROSS, Adam Todd • HUNFALVAY, Melissa
Assignees
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Publication Number
US-11160450-B2
Publication Date
2021-11-02
Expiration Date
Abstract
Systems and methods are disclosed for evaluating human eye tracking. One method includes receiving data representing the location of and/or information tracked by an individual's eye or eyes before, during, or after the individual performs a task; identifying a temporal phase or a biomechanical phase of the task performed by the individual; identifying a visual cue in the identified temporal phase or biomechanical phase; and scoring the tracking of the individual's eye or eyes by comparing the data to the visual cue.
Core Innovation
The invention evaluates human vision performance using an electronic user interface that displays one or more visual cues and prompts an individual to respond to the displayed visual cues. The system receives data representing a location of where the individual’s eye or eyes are looking relative to the one or more visual cues, and identifies one or more smooth pursuit eye movements, saccades, or fixations based on the location of the eye or eyes relative to the visual cues on the user interface.
The invention quantifies each identified smooth pursuit eye movement, saccade, or fixation as a characteristic of the individual’s eye movement. The quantified results are output as a report of the individual’s vision performance, and additional quantified results and derived scores include metrics associated with cognitive load, stress indicator, pursuit tracking, visual acuity, reaction/response time, quiet eye, cue identification, reasoning, and stability.
The invention further includes outputting reports and comparisons, including comparisons against one or more other individuals, trends based on a plurality of quantified results, or previous assessments of the individual. The documented system generates reports and provides a web-based interface for displaying scores, comparisons, and training recommendations, including iterative reassessment after training.
Claims Coverage
The independent claims are directed to a method, a system, and a non-transitory computer-readable medium for evaluating human vision performance from eye-location response data captured relative to on-screen visual cues. Across the independent-claim families, the inventive features center on displaying cues, prompting responses, receiving eye-location relative to cues, identifying smooth pursuit eye movements, saccades, or fixations, quantifying them as characteristics, and outputting the results as a report of vision performance.
Vision evaluation using visual cues on an electronic user interface
Displaying one or more visual cues on an electronic user interface; prompting an individual to respond to the one or more visual cues displayed using the user interface; receiving data of the individual’s response including data representing a location of where the individual’s eye or eyes are looking relative to the one or more visual cues displayed using the user interface.
Identification of smooth pursuit eye movements, saccades, or fixations based on eye location relative to cues
Identifying one or more smooth pursuit eye movements, saccades, or fixations from the received data based on the location of where the individual’s eye or eyes are looking relative to the one or more visual cues displayed on the user interface.
Quantifying eye-movement characteristics and reporting vision performance
Quantifying each of the identified smooth pursuit eye movements, saccades, or fixations as a characteristic of the individual’s eye movement; and outputting the quantified results as a report of the individual’s vision performance.
Optional comparison and trend context in the output
The method outputs the one or more quantified results including a comparison of the individual against one or more other individuals, a trend based on a plurality of the one or more quantified results, or previous assessments of the individual.
System implementation for executing the evaluation method
A data storage device storing instructions for evaluating human eye movement; a processor configured to execute the instructions to perform a method including displaying one or more visual cues on an electronic user interface, prompting an individual to respond using the user interface, receiving data representing a location of where the individual’s eye or eyes are looking relative to the visual cues, identifying one or more smooth pursuit eye movements, saccades, or fixations from the received data based on the location relative to the visual cues, quantifying each as a characteristic of the individual’s eye movement, and outputting the quantified results as a report of the individual’s vision performance.
Computer-readable medium performing the vision evaluation
A non-transitory computer readable medium storing instructions that, when executed by a computer, cause the computer to perform a method comprising displaying one or more visual cues on an electronic user interface; prompting an individual to respond; receiving data including data representing a location of where the individual’s eye or eyes are looking relative to the one or more visual cues; identifying one or more smooth pursuit eye movements, saccades, or fixations from the received data based on the location relative to the visual cues; quantifying each identified smooth pursuit eye movement, saccades, or fixations as a characteristic of the individual’s eye movement; and outputting the quantified results as a report of the individual’s vision performance.
Across the independent claims, the invention evaluates vision performance by coupling a cue-response interface with receipt of eye-location data relative to the cues, identification of smooth pursuit eye movements, saccades, or fixations, quantification of these as eye-movement characteristics, and outputting the results as a vision-performance report. Additional claim refinements include output context such as comparisons or trends, and quantification-specific refinements tied to particular metrics.
Stated Advantages
Outputs quantified results as a report of the individual’s vision performance.
Provides comparison against other individuals, trend based on quantified results, or previous assessments of the individual.
Documented Applications
Evaluating human eye tracking/vision performance by generating scores and reports from eye-location response data relative to visual cues displayed on an electronic user interface.
Providing a web-based interface to display scores and comparisons and to recommend training drills/programs with iterative reassessment after training.
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