Television Gesture Control via Motion Curve Angular Analysis
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Solution Overview
Problem
Existing gesture control methods for television sets are inconvenient and prone to errors due to the need for numerous hand motions and incorrect command generation during volume or channel adjustments, leading to operational inefficiencies.
Innovation Solution
A control method and apparatus that captures motion locus points, fits them to a motion curve, calculates angular information, and generates control instructions based on changes in angular information between adjacent points, allowing for more intuitive and precise control using circular gestures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional gesture control is used where one gesture corresponds to one command increment, then the control method is simple to implement, but the user has to make numerous gestures (e.g., 50 gestures) to achieve significant control effects like volume adjustment from 10 to 60
Solution Approach 1:
The patent changes the control parameter from discrete gesture counting to continuous angular displacement measurement. Instead of counting individual gestures, the system measures the total angle swept by the hand during circular motion, allowing a single continuous gesture to produce proportional control effects regardless of the magnitude of adjustment needed.
Solution Approach 2:
The patent transitions from one-dimensional gesture counting (number of gestures) to two-dimensional angular measurement (radius and angle of circular motion). This dimensional expansion allows the system to capture both the magnitude and direction of user intent in a single gesture, eliminating the need for repeated motions.
2Reliability
If gesture recognition remains active during hand reset, then the system is responsive to all hand movements, but incorrect commands may be generated when the user resets their hand after performing volume adjusting or channel switching
Solution Approach 1:
The patent segments the circular gesture into multiple sampling points and analyzes angular changes between adjacent points. By detecting whether the angular difference exceeds a threshold, the system can distinguish between intentional control gestures and casual hand movements, generating commands only when meaningful angular displacement is detected.
Solution Approach 2:
The system continuously monitors angular information and provides feedback by comparing adjacent sampling points. This real-time feedback mechanism allows the system to recognize when a gesture is complete and when the user has finished adjusting, preventing incorrect command generation during hand reset while maintaining responsiveness during actual control operations.
3Reliability
If the user has to keep the hand immobile until the recognition period elapses, then incorrect commands are avoided, but operational convenience is reduced as the user cannot reset their hand freely
Solution Approach 1:
The patent implements dynamic gesture recognition that adapts to the user's motion state. The system actively tracks hand movement and distinguishes between controlled gestures (with significant angular displacement) and reset movements (with minimal or reversing angular change). This dynamic approach allows free hand movement during and after gestures without generating incorrect commands.
Data Source
AI summary
A television, a control method and a control device for the television are disclosed in the present invention. The control method for the television includes the following steps of: obtaining motion track points of a moving target and fitting the motion track points into a motion curve; calculating angle information corresponding to the motion track points on the motion curve; judging whether the angle information corresponding to a first track point in the motion track points and the angle information corresponding to a second track point in the motion track points are in the same preset range, wherein the first and second track points are adjacent; and when the angle information corresponding to the first track point and the angle information corresponding to the second track point are not in the same preset range, generating a control instruction to control the action of the television. By the present invention, a user can conveniently control the television by utilizing gestures.