Gaze Point Calibration Using Multi-Indicator Segmentation
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Solution Overview
Problem
Existing camera control systems face challenges in quickly and easily reducing positional deviation of the gaze point when a photographer's eye is brought into contact with the viewfinder, leading to cumbersome calibration processes and reduced photography convenience.
Innovation Solution
A control apparatus with a processor and memory that estimates and corrects the gaze point position using indicators displayed on a display section, employing a first mode for initial calibration with multiple indicators and a second mode for subsequent calibration with fewer indicators, allowing for quick and easy adjustment of gaze point positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If calibration is performed using multiple indicators to ensure accuracy, then measurement precision is improved, but device complexity and operation time increase
Solution Approach 1:
The calibration process is segmented into two distinct modes: a first calibration mode using multiple indicators for high-precision gaze point detection, and a second calibration mode using a single indicator for quick adjustments. This segmentation allows the system to switch between comprehensive calibration and rapid recalibration based on operational needs, reducing overall complexity while maintaining accuracy.
Solution Approach 2:
The system dynamically switches between different calibration modes based on operational context. The first calibration mode with multiple indicators is used for initial or comprehensive calibration, while the second mode with a single indicator is used for quick adjustments during operation. This dynamic adaptation optimizes both precision and efficiency at different stages.
2Measurement precision
If frequent calibration is performed to maintain accuracy when eye-contact position changes, then measurement precision is improved, but loss of time and productivity decrease
Solution Approach 1:
The calibration system operates dynamically by switching between comprehensive calibration (first mode) and quick calibration (second mode). When eye-contact position changes during operation, the system can perform rapid single-indicator calibration instead of full multi-indicator calibration, maintaining accuracy while minimizing time loss.
Solution Approach 2:
The first calibration using multiple indicators is performed in advance to establish accurate baseline parameters. This preliminary comprehensive calibration reduces the need for frequent full recalibrations, as subsequent adjustments can be made efficiently using the second mode with a single indicator, thereby reducing overall calibration time.
3Reliability
If comprehensive calibration with multiple indicators is performed, then reliability of gaze point detection is improved, but ease of operation deteriorates
Solution Approach 1:
The calibration process is divided into two segments: an initial comprehensive calibration using multiple indicators that establishes reliable detection parameters, and subsequent simplified calibrations using a single indicator that are easier to operate. This segmentation maintains high reliability from the comprehensive calibration while improving ease of operation for routine adjustments.
Solution Approach 2:
The comprehensive multi-indicator calibration is performed as a preliminary action to establish reliable detection parameters before operation begins. This upfront investment in thorough calibration ensures high reliability throughout operation, while subsequent calibrations can be performed easily using the single-indicator second mode without compromising overall detection reliability.
Data Source
AI summary
A control apparatus that is capable of quickly and easily reducing the positional deviation of a gaze point, occurring whenever a photographer's eye is brought into contact with a viewfinder. A position corresponding to a gaze point of a user is estimated and corrected based on a position of an indicator displayed on a display section and the position corresponding to the gaze point of the user associated with the position of the indicator. In a first mode, the correction is performed based on positions of a first number of indicators, and in a second mode, the correction is performed based on a second number, smaller than the first number, of indicators.