Infrared Gesture Recognition Hold Motion Filter
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing gesture recognition methods using infrared rays lack preventive measures against erroneous operations, which can distract drivers and cause safety hazards by directly recognizing motions without preparatory operations, limiting the development of high-quality gesture recognition systems.
Innovation Solution
An apparatus and method that recognize gestures by adding a hold motion to determine the start of gesture recognition, using a sensing unit with infrared sensors to detect variations on the x-axis or y-axis, and a control unit to differentiate intended gestures from background motions based on predetermined recognizing modes, including a first mode for direct recognition and a second mode that requires a hold motion for gesture initiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If gesture recognition is performed directly without preparatory operation, then response speed is improved, but reliability deteriorates due to erroneous operations
Solution Approach 1:
The patent introduces a preparatory operation (hold motion) that requires the user to maintain a specific gesture state for a predetermined time before the gesture is recognized. This preliminary action filters out accidental or erroneous gestures while still allowing quick recognition of intentional gestures, thus improving reliability without significantly compromising response speed for valid gestures
2Reliability
If hold motion is added to determine start of gesture recognition, then reliability is improved by preventing erroneous operations, but device complexity increases
Solution Approach 1:
The patent implements dynamic gesture recognition by transitioning between different states (idle, hold motion detected, gesture in progress, completed). The system dynamically adjusts its recognition behavior based on the current state and the duration of detected motions, allowing complex recognition logic to be implemented through state transitions rather than complex hardware or algorithms
3Reliability
If hold motion is required for gesture initiation, then erroneous operations are reduced, but ease of operation deteriorates
Solution Approach 1:
The patent allows the predetermined time threshold for hold motion to be adjusted and optimized. By carefully selecting this parameter, the system achieves a balance where intentional gestures (which users can easily hold) are recognized quickly, while accidental gestures (which are brief and unintentional) are filtered out, thus maintaining ease of operation for valid gestures while improving reliability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach effectively prevents erroneous operations and enhances user convenience by accurately recognizing swiping motions up, down, left, or right, improving the safety and reliability of gesture recognition systems in vehicles.
Implementation Method 1
a sensing unit which detects a gesture using an infrared sensor to obtain a sensing value from the sensing result
Data Source
AI summary
An apparatus and a method of recognizing a gesture uses an infrared ray. The apparatus for recognizing a gesture, includes a sensing unit which detects a gesture using an infrared sensor to obtain a sensing value from the sensing result; a control unit which performs gesture recognition to which an intention of a user is reflected in accordance with a predetermined recognizing mode based on the obtained sensing value; and a storing unit which stores the predetermined recognizing mode when the gesture recognition set in advance by the user is performed. The predetermined recognizing mode includes a first recognizing mode in which the gesture is directly recognized and a second recognizing mode in which the gesture is recognized after recognizing a hold motion for determining start of the gesture recognition.