Dynamic Representative Point for Gesture Recognition
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Solution Overview
Problem
Conventional gesture recognition apparatuses struggle to accurately determine the representative point for recognizing gestures, particularly when using body parts like hands, leading to incorrect input commands due to inappropriate setting of the representative point.
Innovation Solution
A gesture recognition apparatus that determines the shape of the object part performing the gesture and sets a representative point based on that shape, allowing for accurate tracking of the gesture's intended motion, such as setting the point at the fingertip for fine motions and the center of the hand for larger motions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a representative point is set at the center of the hand for gesture recognition, then the gesture recognition apparatus can handle general hand gestures, but it cannot accurately recognize gestures performed by moving only the fingertip
Solution Approach 1:
The representative point is not fixed at the center of the hand but is dynamically determined based on the shape of the object part. The representative point determining unit calculates the representative point position by considering the shape information, allowing the representative point to move to appropriate locations such as the fingertip when the object part has a protruding shape, thereby accurately tracking gestures performed by moving only the fingertip
Solution Approach 2:
Different parts of the object part are treated differently based on their shape characteristics. When the object part has a protruding shape (such as a raised finger), the representative point is determined to be at the protruding part rather than at the geometric center, allowing the system to focus on the locally significant area for gesture recognition
2Measurement precision
If the representative point is determined based on the shape of the object part, then gesture recognition accuracy is improved, but the device complexity increases due to additional shape analysis processing
Solution Approach 1:
The shape of the object part is determined in advance before gesture recognition is performed. The object part shape identifying unit extracts shape information from the acquired image and stores it, so that when the representative point needs to be determined, the shape data is already available for immediate use in calculating the representative point position
Data Source
AI summary
A gesture recognition apparatus detecting a gesture from an image and generating for an object device an instruction corresponding to the gesture, the gesture recognition apparatus comprises an image acquiring unit configured to acquire an image; an object part extracting unit configured to extract an object part performing a gesture; an object part shape identifying unit configured to identify a shape of the extracted object part; a representative point determining unit configured to set a representative point that is a point representing a position of the object part; a gesture recognizing unit configured to recognize a gesture, based on a motion of the representative point; and a command generating unit configured to generate an instruction corresponding to the recognized gesture, wherein the representative point determining unit determines a position of a representative point corresponding to the object part, using the identified shape of the object part.