Vehicle Gesture Recognition Using Predicted Vibration Signals
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Solution Overview
Problem
Existing technologies for vehicle operation using gestures are hindered by vibrations, which cause delays in recognizing intended operations due to feedback after vibrations occur, leading to unstable gesture recognition.
Innovation Solution
A signal processing device and system that predicts future vibrations and adjusts recognition methods based on anticipated vibration patterns, allowing for stable gesture recognition by setting a recognition method using future vibration data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If gesture recognition is performed using conventional feedback methods, then the system can operate with simple processing, but the recognition accuracy deteriorates due to vibration delays
Solution Approach 1:
The system performs preliminary action by predicting future vibrations before they occur and pre-adjusting the recognition threshold accordingly. The vibration prediction unit forecasts upcoming vibrations based on historical data, and the recognition threshold adjustment unit proactively modifies the threshold before the actual vibration affects gesture recognition, thereby maintaining high recognition accuracy without complex real-time processing during vibration events.
2Measurement precision
If the recognition threshold is adjusted in real-time during vibrations, then the recognition accuracy improves, but the response time deteriorates due to processing delays
Solution Approach 1:
The system adjusts the recognition threshold in advance based on predicted vibration patterns rather than waiting for vibrations to occur. By forecasting future vibrations and pre-modifying the threshold, the system eliminates recognition delays that would otherwise occur during actual vibration events, maintaining both high accuracy and timely response.
Solution Approach 2:
The vibration prediction unit acts as an intermediary between the vibration source and the gesture recognition system. It forecasts upcoming vibrations and provides this predictive information to the threshold adjustment unit, enabling the system to prepare appropriate threshold modifications before the vibrations actually affect gesture recognition, thereby avoiding real-time processing delays.
3Ease of operation
If the touch operation active area is enlarged to compensate for vibrations, then the ease of operation improves, but the measurement precision deteriorates due to delayed feedback
Solution Approach 1:
The system proactively adjusts the recognition threshold based on predicted vibration characteristics before vibrations occur. This preliminary adjustment allows the system to maintain appropriate detection precision even when the effective operation area is reduced during vibrations, because the threshold is already optimized for the upcoming vibration conditions rather than being reactively adjusted after the fact.
Data Source
AI summary
Provided is a signal processing device that includes a setting unit to set a recognition method for recognizing an operation using a gesture on the basis of first vibration data indicating vibrations predicted to occur in the future, and an operation recognition unit to recognize the operation indicated by the gesture performed by a user in accordance with the recognition method set by the setting unit. The operation recognition unit recognizes the operation indicated by the gesture performed by the user in a vehicle equipped with the signal processing device. The present technology is applicable to, for example, a signal processing device that controls a display device provided in a vehicle.