Gesture Recognition Threshold

The predefined parameters that a gesture recognition system uses to determine whether a user's hand movement constitutes a valid gesture input. These thresholds specify requirements such as the exact finger positions, distances between fingertips, hand openness levels, and movement speeds needed for a gesture to be registered. In current VR systems, rigid gesture recognition thresholds are a major accessibility barrier because they do not accommodate the natural variation in how people with motor impairments perform gestures—for example, requiring tip-to-tip pinching when some users can only press their thumb against the side of their index finger. More flexible, adaptive thresholds that learn from individual users' movement patterns are needed to make freehand interactions inclusive.