Gaze Input Threshold Filtering for Indicator Control
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Solution Overview
Problem
Gaze input technology reflects unintended movement of the line of sight, such as wobble, as input, making it inconvenient for users, and existing solutions do not adequately address this issue when gaze input is enabled.
Innovation Solution
An information processing apparatus that acquires user operation information and controls the display position of an indicator using gaze input only if the difference between the intended operation position and the gazing point exceeds a threshold, thereby distinguishing intended input movement from unintended movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If gaze input is enabled to allow direct line of sight reflection on input, then input convenience is improved, but unintended line of sight movement (wobble) is also reflected causing input inaccuracy
Solution Approach 1:
The patent introduces an intermediary mechanism (difference calculation and threshold judgment) between the gazing point detection and indicator control. The system calculates the difference between the gazing point and indicator position, compares it with a threshold value, and only enables indicator control when the difference exceeds the threshold. This intermediary process filters out small wobble movements while allowing intentional gaze shifts to control the indicator.
2Speed
If gaze input continuously tracks line of sight movement, then real-time input response is improved, but unintended movements such as wobble are also tracked causing unwanted input
Solution Approach 1:
The patent changes the parameter threshold for enabling gaze input control. Instead of continuously responding to all line of sight movements, the system sets a threshold value for the difference between gazing point and indicator position. Only when this parameter (difference value) exceeds the threshold does the system enable indicator control, thereby filtering out small wobble movements while maintaining rapid response to intentional gaze shifts.
Data Source
AI summary
Provided is an information processing apparatus including an acquiring unit that acquires information indicating user operation, and a display control unit that determines whether or not to control a display position of an indicator using gaze input in accordance with whether or not a difference between a position of the indicator indicating an operation position operated by a user indicated by the information acquired by the acquiring unit and a position of a gazing point of the user exceeds a threshold.