Mid-air Gestures and Embodied Sensing

Definition and Fit of Mid-air Gestures

The Midas Touch Problem

Gesture Onset and Offset Detection

Static Poses versus Dynamic Gestures

Three Dimensions of Gesture Evaluation

Air Pinch

Mid-air Swipe

Flip and Rotation Gestures

Finger Count as Input

Sensing Volume and Interaction Distance

Substitutes for Contact Feedback

Fatigue Cost of Mid-air Gestures

Full-Body Pose and Skeleton Tracking

Gesture Vocabulary Size Limits

Conditions for Entering Engagement

Disengagement and Timeout

Input Attribution and Multi-User Arbitration

Handedness Binding and Bimanual Independence

Re-entry Grace

Interaction Volume versus Capture Range

Coordinate Anchors of the Interaction Volume

Perceiving Interaction-Volume Boundaries

Handling Tracking Loss

Recognition Confidence and Bias Direction

Predefined Fallback Paths

Distinguishing Three-State Feedback

Decoupling Gestures from Consequence Severity

Necessity of Non-Gesture Paths

Visibility of Capture State

Bystanders and Third Parties

Lighting, Occlusion, and Environmental Conditions

Social Acceptability