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14 Results

June 1, 2018

The Immersive VR Self: Performance, Embodiment and Presence in Immersive Virtual Reality Environments

Book chapter from A Networked Self and Human Augmentics, AI, Sentience

Virtual avatars are a common way to present oneself in online social interactions. From cartoonish emoticons to hyper-realistic humanoids, these online representations help us portray a certain image to our respective audiences.

By: Raz Schwartz, William Steptoe
April 21, 2018

Speech Communication through the Skin: Design of Learning Protocols and Initial Findings

Computer Human Interaction (CHI)

This study reports the design and testing of learning protocols with a system that translates English phonemes to haptic stimulation patterns (haptic symbols).

By: Jaehong Jung, Yang Jiao, Frederico M, Severgnini, Hong Z Tan, Charlotte M. Reed, Ali Israr, Frances Lau, Freddy Abnousi
April 21, 2018

Feeling Speech on the Arm

Computer Human Interaction (CHI)

In this paper, we introduce a transcutaneous language communication (TLC) system that transmits a tactile representation of spoken or written language to the arm.

By: Jennifer Chen, Pablo Castillo, Robert Turcott, Ali Israr, Frances Lau
April 21, 2018

Communication Behavior in Embodied Virtual Reality

Human Computer Interaction Conference (CHI)

To investigate communication behavior with embodied virtual reality onto an avatar in a virtual 3D environment, we had 30 dyads complete two tasks using a shared visual workspace: negotiating an apartment layout and placing model furniture on an apartment floor plan.

By: Harrison Jesse Smith, Michael Neff
March 25, 2018

A Social Haptic Device to Create Continuous Lateral Motion Using Sequential Normal Indentation

IEEE Haptics Symposium (HAPTICS)

This paper presents a device for creating a continuous lateral motion on the arm to mimic a subset of the gestures used in social touch.

By: Heather Culbertson, Cara M. Nunez, Ali Israr, Frances Lau, Freddy Abnousi, Allison M. Okamura
March 25, 2018

Toward Improved Surgical Training: Delivering Smoothness Feedback using Haptic Cues

IEEE Haptics Symposium (HAPTICS)

In this paper, we explore the effectiveness of providing real-time feedback of movement smoothness, a characteristic associated with skilled and coordinated movement, via a vibrotactile cue. Subjects performed a mirror-tracing task that requires coordination and dexterity similar in nature to that required in endovascular surgery.

By: William H. Jantscher, Shivam Pandey, Priyanshu Agarwal, Sadie H. Richardson, Bowie R. Lin, Michael D. Byrne, Marcia K. O’Malley
November 27, 2017

Fast Gaze-Contingent Optimal Decompositions for Multifocal Displays

SIGGRAPH ASIA

Our goal is to enable interactive optimal decomposition algorithms capable of driving a vergence- and accommodation-tracked multifocal testbed. Ultimately, such a testbed is necessary to establish the requirements for the practical use of multifocal displays, in terms of computational demand and hardware accuracy. To this end, we present an efficient algorithm for optimal decompositions, incorporating insights from vision science.

By: Oliver Mercier, Yusufu Sulai, Kevin Mackenzie, Marina Zannoli, James Hillis, Derek Nowrouzezahrai, Douglas Lanman
Areas: AR/VR
October 25, 2017

DodecaPen: Accurate 6DoF Tracking of a Passive Stylus

ACM Symposium on User Interface Software and Technology (UIST)

We propose a system for real-time six degrees of freedom (6DoF) tracking of a passive stylus that achieves sub-millimeter accuracy, which is suitable for writing or drawing in mixed reality applications.

By: Po-Chen Wu, Robert Wang, Kenrick Kin, Christopher Twigg, Shangchen Han, Ming-Hsuan Yang, Shao-Yi Chien
Areas: AR/VR
October 22, 2017

Deltille Grids for Geometric Camera Calibration

International Conference on Computer Vision (ICCV)

The recent proliferation of high resolution cameras presents an opportunity to achieve unprecedented levels of precision in visual 3D reconstruction. Yet the camera calibration pipeline, developed decades ago using checkerboards, has remained the de facto standard. In this paper, we ask the question: are checkerboards the optimal pattern for high precision calibration?

By: Hyowon Ha, Michal Perdoch, Hatem Alismail, In So Kweon, Yaser Sheikh
September 24, 2017

Propagation of Joint Space Quantization Error to Operational Space Coordinates and Their Derivatives

IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS)

In this paper, we characterize encoder error in a robotic system. Given encoder specifications, robot kinematics, and discrete transfer functions mapping coordinates to their derivatives, we describe the propagation of quantization error on joint space coordinates to operational space coordinates, joint space coordinate derivatives, and operational space coordinate derivatives.

By: Nick Colonnese, Allison M. Okamura
Areas: AR/VR