Sight Position Detection for Moving Object Selection
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Solution Overview
Problem
Existing methods for detecting a sight line, such as those used in digital cameras, often fail to accurately select a subject when the user's gaze does not consistently focus on a single point or when the subject is moving, leading to difficulties in maintaining focus or selecting the intended object.
Innovation Solution
An electronic apparatus with a sight position detection unit and a control unit that detects the region of the user's gaze and performs object selection based on whether the gaze remains stationary for a first time period or matches the movement of a displayed object's movement for a second time period, ensuring accurate selection even with moving subjects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the sight line detection method requires the gaze to remain fixed on one menu item for a predetermined period, then selection accuracy for stationary objects is improved, but the ability to track and select moving subjects deteriorates
Solution Approach 1:
The patent applies dynamics by making the sight line detection system adaptive to different object states. When an object is detected as moving, the system dynamically switches from a fixed-gaze selection mode to a tracking mode that follows the object's movement. This allows the system to maintain selection accuracy for both stationary objects (using fixed gaze duration) and moving objects (using continuous tracking), thereby resolving the contradiction between measurement precision and adaptability.
2Ease of operation
If the sight line detection uses a fixed time period for selection, then operation simplicity is improved, but responsiveness to moving objects deteriorates
Solution Approach 1:
The system dynamically adjusts its operation mode based on object movement detection. For stationary objects, it uses a simple fixed time-period mechanism that maintains ease of operation. For moving objects, it automatically switches to a tracking mode that responds immediately to object position changes, thereby improving response speed without significantly complicating the overall operation for the user.
Data Source
AI summary
An electronic apparatus comprises a sight position detection unit configured to detect region of a sight positon to a display unit which displays an object, and a control unit configured to perform control to, in a case where a state where the detected region of the sight position is not moving continues for a first time period, select an object corresponding to the region of the sight position, and in a case where a state where the detected region of the sight position is moving and a direction of movement of the region of the sight position and a direction of movement of an object satisfy a predetermined condition continues for a second time period, select the object.