Eye-Tracking Responsiveness Adjustment for Accurate Subject Focus
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing line-of-sight detection systems fail to accurately adjust responsiveness based on individual user reaction speeds, leading to misfocus on intended subjects, especially when multiple objects are present or involuntary eye movements occur.
Innovation Solution
An electronic apparatus with a processor that adjusts line-of-sight responsiveness by considering the user's reaction speed, using filters like Infinite Impulse Response (IIR) to suppress involuntary eye movements and align the detected line-of-sight position with the intended object, based on shift amounts and times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If line-of-sight detection is performed without considering reaction speed, then detection simplicity is maintained, but focusing accuracy on intended subject deteriorates
Solution Approach 1:
The patent applies parameter changes by adjusting the responsiveness of line-of-sight position detection based on the user's reaction speed characteristics. The system dynamically modifies detection parameters (responsiveness) to match individual user differences, thereby maintaining detection simplicity while improving focusing accuracy on the intended subject.
2Device complexity
If line-of-sight responsiveness is made uniform for all users, then system simplicity is maintained, but identification accuracy of photographing target deteriorates
Solution Approach 1:
The patent implements parameter changes by adjusting line-of-sight responsiveness according to each user's reaction speed. Instead of maintaining uniform responsiveness for all users, the system modifies this parameter individually, achieving better identification accuracy while managing complexity through automated parameter adjustment.
3Speed
If line-of-sight detection does not consider reaction speed, then detection speed is maintained, but responsiveness to user's intended line-of-sight deteriorates
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting line-of-sight responsiveness based on measured reaction speed. This allows the system to maintain appropriate detection speed while improving reliability of responsiveness to the user's intended line-of-sight, as the responsiveness parameter is optimized for each user's characteristics.
4Device complexity
If uniform line-of-sight detection is used, then system complexity is reduced, but accuracy when multiple subjects are present deteriorates
Solution Approach 1:
The patent implements parameter changes by adjusting line-of-sight responsiveness according to individual reaction speeds. This personalized parameter adjustment enables more accurate subject identification when multiple subjects are present, while the system manages complexity through automated adaptation rather than complex manual configuration.
Data Source
AI summary
An electronic apparatus includes at least one memory and at least one processor which function as: a first acquiring unit configured to detect a line-of-sight of a user and to acquire a line-of-sight position of the user in an image displayed on a display; a second acquiring unit configured to acquire a position of an object in the image; and an adjustment unit configured to adjust line-of-sight responsiveness, which is responsiveness by which movement of the line-of-sight of the user is reflected in the line-of-sight position on the basis of a shift amount in a moving amount for predetermined time between a moving amount of the line-of-sight position and a moving amount of the position of the object, or a shift amount in moving time for a predetermined distance between moving time of the line-of-sight position and moving time of the position of the object.