Gesture Threshold Control via 3D Finger Position
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Solution Overview
Problem
Existing technologies face challenges in accurately determining user gestures, such as touch operations, due to limitations in distinguishing intended from unintended touches.
Innovation Solution
An information processing apparatus that controls threshold values based on three-dimensional position information of multiple fingers to enhance gesture determination accuracy, including adjusting threshold values for distance and movement to differentiate between touch and slide operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed threshold value is used for gesture determination, then the system is simple to operate, but the accuracy of distinguishing intended from unintended touches deteriorates
Solution Approach 1:
The patent applies dynamics by making the threshold value adjustable based on the detected hand shape. The threshold value control unit changes the threshold dynamically according to whether the hand is in a closed or open state, allowing the system to adapt to different user intentions and improve gesture determination accuracy without requiring complex manual configuration.
Solution Approach 2:
The patent changes the threshold parameter based on hand shape detection. When the hand is detected to be in a closed state, a first threshold value is used, while when the hand is in an open state, a second threshold value is used. This parameter change enables the system to distinguish between intended and unintended touches more accurately.
2Ease of operation
If the threshold value is lowered to detect more gestures, then gesture sensitivity improves, but the number of erroneous operations increases
Solution Approach 1:
The patent applies local quality by differentiating threshold values based on the specific hand shape detected. Instead of using a single uniform threshold, the system uses different thresholds for closed hand state and open hand state, allowing sensitive gesture detection while reducing erroneous operations in specific contextual situations.
Solution Approach 2:
The system uses feedback from hand shape detection to adjust the threshold value. The threshold value control unit continuously monitors the hand shape and adjusts the threshold accordingly, creating a feedback loop that prevents erroneous operations by adapting the sensitivity level to the current hand state.
3Measurement precision
If multiple threshold values are used for different finger combinations, then gesture determination accuracy improves, but the control logic complexity increases
Solution Approach 1:
The patent manages multiple threshold values by changing parameters based on hand shape classification. Rather than implementing complex logic for each finger combination, the system simplifies control by using hand shape (closed/open) as the determining factor for selecting appropriate threshold values, reducing control logic complexity while maintaining high accuracy.
Data Source
AI summary
An information processing apparatus according to an embodiment of the present technology includes: a threshold value control unit. The threshold value control unit controls, on the basis of three-dimensional position information of each of a first finger and a second finger acquired from a detection result of a sensor, a threshold value relating to determination of a gesture using at least one of the first finger and the second finger. As a result, it is possible to perform gesture determination with high accuracy.