Wearable Gesture Recognition via Motion and Position Data
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Solution Overview
Problem
Conventional vehicle systems for gesture recognition are limited in their ability to accurately recognize gestures outside a narrow viewing angle and are affected by varying illumination levels, leading to reduced reliability.
Innovation Solution
A gesture recognition apparatus that includes a wearable device communicating with a processor, which determines gesture recognition based on motion information and position, allowing for gesture-based control of vehicle functions while considering emotional state and gaze direction, and includes features like ultra-wideband communication for precise positioning and wireless charging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional vehicle system uses an in-vehicle camera to recognize gestures, then the system can execute functions corresponding to recognized gestures, but the gesture recognition is limited to a narrow region within the camera's viewing angle range and reliability is degraded when image quality is lowered due to external illumination
Solution Approach 1:
The system divides the gesture recognition functionality into two segments: a wearable device that captures motion information from the user's body, and a vehicle system that processes this information. This segmentation allows the wearable device to operate independently of the vehicle camera's viewing angle limitations, enabling gesture recognition across a wider area while maintaining reliability through the wearable device's dedicated sensors.
Solution Approach 2:
The wearable device acts as an intermediary between the user and the vehicle system. Instead of relying directly on the vehicle camera to capture and interpret gestures, the wearable device captures motion information and transmits it to the vehicle system, which then recognizes the gesture and executes the corresponding function. This intermediary approach overcomes the camera's narrow viewing angle and illumination sensitivity.
2Area of stationary object
If the system expands gesture recognition to a wider area, then more regions can be controlled, but the reliability of recognition under varying illumination conditions deteriorates
Solution Approach 1:
The system replaces the optical-based gesture recognition (using vehicle cameras that are sensitive to illumination) with a motion-based recognition system using the wearable device's sensors. This substitution eliminates dependence on visual imaging and external illumination, allowing reliable gesture recognition across wide areas without being affected by lighting conditions.
Solution Approach 2:
The system changes the detection parameters from optical/image-based parameters (which are sensitive to illumination) to motion-based parameters (acceleration, velocity, position) captured by the wearable device's sensors. This parameter change enables the system to operate reliably across varying illumination conditions while expanding the recognizable gesture region.
Data Source
AI summary
Provided are a gesture recognition apparatus and method. The gesture recognition apparatus includes a first communication circuit configured to communicate with a wearable device worn on a first body part of a user, a memory in which a gesture recognition program is stored, and a processor configured to execute the gesture recognition program, wherein the processor receives motion information from the wearable device through the first communication circuit, checks a position of the wearable device, determines whether a gesture is to be recognized according to the position of the wearable device on the basis of the motion information, and executes a function corresponding to the gesture.