Push-Poke: Collision based Direct Manipulation Technique for Plane Alignment in Virtual Reality

sriram kumar, Jari Kangas, Helena Mehtonen, Jorma Järnstedt, Roope Raisamo

Keywords: Human computer interaction, Interaction Paradigms, Virtual Reality, Human Centered Computing, Gesture Input, Hand interaction, Empirical study

TL;DR: Determining the perceptual structure of hand-based plane alignment in virtual reality

Abstract:

Medical operation planning requires high precision due to the health
risks involved. In virtual reality-based osteotomy operation planning,
medical professionals would like to use their hands instead of the
controllers for osteotomy plane manipulation. However, using hands
as an input method in virtual reality is challenging due to noisy
hand tracking. We explored the perceptual structure of precise plane
manipulation by conducting a controlled experiment to compare: (1)
separable Push-Poke which dynamically selects plane manipulation
parameters, (2) separable custom axis with Control-Display gain
widget which provides user to select object manipulation parameters,
(3) integral pinch-based direct manipulation. The perceptual
structure of hand-based plane manipulation techniques is composed
of (1) integral and fast direct manipulation and (2) separable slow
technique that dynamically selects manipulation parameters.