• Publications
  • Influence
Virtual Replicas for Remote Assistance in Virtual and Augmented Reality
TLDR
We introduce two approaches that use Virtual Reality (VR) or Augmented Reality (AR) for the remote expert, and AR for the local user, each wearing a stereo head-worn display. Expand
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  • 3
ParaFrustum: visualization techniques for guiding a user to a constrained set of viewing positions and orientations
TLDR
We introduce ParaFrustum, a geometric construct that represents this set of strategic viewpoints and viewing directions. Expand
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Remote collaboration in AR and VR using virtual replicas
TLDR
We present a demonstration of 3d interaction and visualization techniques in AR and VR that e ciently support interaction in remote assistance scenarios, where both users wear tracked HWDs. Expand
  • 10
  • 1
Hands-Free Interaction for Augmented Reality in Vascular Interventions
TLDR
We present a 3D user interface (UI) based *e-mail: {ag3848, ss5218, gjl2113, ce2236, skf1}@columbia.edu on head tracking and voice. Expand
  • 8
A user interface for assistive grasping
TLDR
We present a user interface which allows the user to combine the speed and convenience of offline preplanned grasps with the versatility of an online planner. Expand
  • 11
  • PDF
Travel in large-scale head-worn VR: Pre-oriented teleportation with WIMs and previews
TLDR
We demonstrate an interaction technique that allows a user to point at a world-in-miniature representation of a city-scale virtual environment and perform efficient and precise teleportation by pre-orienting an avatar. Expand
  • 8
Collaborative Virtual Reality for Low-Latency Interaction
TLDR
We present a multi-user virtual reality system that supports interactions of both these types. Expand
  • 6
Providing Assistance for Orienting 3D Objects Using Monocular Eyewear
TLDR
We present HANDLES, a novel visualization approach and three additional visualizations representing different paradigms for guiding unconstrained manual 3DOF rotation, targeting these monoscopic HWDs. Expand
  • 7
Mercury: A Messaging Framework for Modular UI Components
TLDR
In recent years, the entity--component--system pattern has become a fundamental feature of the software architectures of game-development environments, which are used extensively in developing 3D user interfaces. Expand
  • 3
Hands-free augmented reality for vascular interventions
TLDR
We developed an augmented reality system supporting hands-free interaction techniques that use voice and head tracking to enable the physician to interact with 3D virtual content on a head-worn display while leaving both hands available intraoperatively. Expand
  • 4
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