Gesture Input Apparatus Speed Threshold Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing gesture recognition apparatuses struggle to distinguish between input and non-input motions, particularly when a user's hand returns to its initial position after a gesture, and fail to handle continuous input operations smoothly, such as volume control or channel switching.
Innovation Solution
An input apparatus comprising a motion detecting unit, a video signal processing unit, and a control unit that outputs a predetermined video signal only when a user's hand motion meets specific speed and direction criteria, preventing recognition of hand return motions as input and ensuring continuous motion is recognized as an operational command.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gesture recognition apparatus recognizes hand motion without speed threshold, then all hand motions are recognized as input commands, but hand return motions to initial position are incorrectly recognized as input commands
Solution Approach 1:
The patent introduces a speed threshold parameter to filter hand motions. By changing the recognition criterion from simple motion detection to speed-based filtering, the system distinguishes between intentional gestures (fast motion) and hand return motions (slow motion), eliminating false recognition while maintaining accurate input detection.
2Ease of manufacture
If gesture recognition apparatus uses simple motion detection, then implementation is simple, but continuous input operations cannot be performed smoothly
Solution Approach 1:
The patent implements continuous input recognition by maintaining a flag state that persists across multiple motion detections. When a gesture is detected, the flag is set and remains active, allowing subsequent motions to be recognized as continuous commands until a termination condition is met. This enables smooth continuous operations like volume control without requiring complex system architecture.
3Productivity
If gesture recognition apparatus recognizes all detected motions as input, then user input responsiveness is high, but operational effectiveness is reduced due to recognition of non-input motions
Solution Approach 1:
The system provides feedback to the user through visual indication on the display. When a hand motion is detected and recognized as a valid input command, the system provides visual feedback to confirm the recognition. This feedback mechanism helps users understand which motions are recognized as commands and which are ignored, improving the operational effectiveness while maintaining responsiveness.
Data Source
AI summary
An input apparatus includes an input unit that receives a predetermined motion image signal, a motion detecting unit that detects a motion from the motion image signal received by the input unit, a video signal processing unit that outputs a predetermined video signal when a motion detected by the motion detecting unit is a predetermined motion, and a control unit that controls the video signal processing unit, in which the control unit controls the motion detecting unit not so as to detect a motion when the predetermined video signal is being outputted by the video signal processing unit, thereby providing a useful input apparatus for a user.