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Table 2 Taxonomy of freehand gestures for immersive VR shopping applications

From: Understanding freehand gestures: a study of freehand gestural interaction for immersive VR shopping applications

Nature

 Physical

Gesture acts physically on an object

 Symbolic

Gesture depicts a symbol

 Metaphorical

Gesture indicates a metaphor

 Abstract

Gesture-task mapping is arbitrary

Body parts

 One hand

Gesture is performed with one hand

 Two hands

Gesture is performed with two hands

 Full body

Gesture involves movements of at least one other body part in addition to the hands

Form

 Static

Hand pose is held in one location

 Dynamic

Gesture contains movements of one or more body parts during the stroke phase

Viewpoint

 Independent

Gesture is independent of the viewpoint

 Object-centric

Gesture is performed from the object’s point of view

 User-centric

Gesture is performed from the user’s point of view