Fingertip Contact Detection for Small-Motion Hand Gestures
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Solution Overview
Problem
Existing gesture recognition technologies require large hand movements for accurate detection, leading to a deterioration in operability.
Innovation Solution
A detection processing device that captures the shape of a user's hand in multiple dimensions to detect the presence or absence of contact between fingertips, enabling small and intuitive hand motions for non-contact manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If gesture recognition is performed based on large fingertip movement as in prior art, then recognition accuracy is improved, but operability deteriorates due to requiring excessive hand motion
Solution Approach 1:
The patent changes the detection parameter from large-scale fingertip trajectory to small-scale fingertip contact state (contact vs. non-contact). By detecting whether fingertips are in contact with each other rather than tracking large movements, the system achieves accurate recognition with minimal hand motion, resolving the contradiction between recognition accuracy and operability
Solution Approach 2:
The patent transitions from detecting one-dimensional fingertip position/trajectory to detecting the state dimension of fingertip contact (contact/non-contact). This dimensional shift allows the system to recognize gestures based on contact state rather than movement magnitude, enabling accurate recognition with small hand motions and improving operability
Data Source
AI summary
A detection processing device according to the present technology includes a detection processing unit that inputs shape detection information that is information obtained by capturing a shape of a hand of a user in at least two or more dimensions, and detects a motion of the hand including at least presence or absence of contact between fingertips of the user on the basis of the shape detection information.