Research Area
Year Published

870 Results

July 15, 2019

Searching for Communities: a Facebook Way

ACM SIGIR Conference on Research and Development in Information Retrieval

Giving people the power to build community is central to Facebook’s mission. Technically, searching for communities poses very different challenges compared to the standard IR problems.

By: Viet Ha-Thuc, Srinath Aaleti, Rongda Zhu, Nade Sritanyaratana, Corey Chen

July 14, 2019

Extreme Relative Pose Estimation for RGB-D Scans via Scene Completion

Conference on Computer Vision and Pattern Recognition (CVPR)

Estimating the relative rigid pose between two RGB-D scans of the same underlying environment is a fundamental problem in computer vision, robotics, and computer graphics. Most existing approaches allow only limited relative pose changes since they require considerable overlap between the input scans. We introduce a novel approach that extends the scope to extreme relative poses, with little or even no overlap between the input scans.

By: Zhenpei Yang, Jeffrey Z. Pan, Linjie Luo, Xiaowei Zhou, Kristen Grauman, Qixing Huang

July 12, 2019

The contributions of skin stretch and kinesthetic information to static weight perception

World Haptics

In this study, we examined the contributions of kinesthetic and skin stretch cues, in isolation and together, to the static perception of weight. In two psychophysical experiments, we asked participants either to detect on which hand a weight was presented or to compare between two weight cues. Two closed-loop controlled haptic devices were used to present weights with a precision of 0.05g to an end-effector held in a pinch grasp.

By: Femke E. van Beek, Raymond J. King, Casey Brown, Massimiliano Di Luca
Areas: AR/VR

July 12, 2019

VR Facial Animation via Multiview Image Translation

SIGGRAPH

In this work, we present a bidirectional system that can animate avatar heads of both users’ full likeness using consumer-friendly headset mounted cameras (HMC). There are two main challenges in doing this: unaccommodating camera views and the image-to-avatar domain gap. We address both challenges by leveraging constraints imposed by multiview geometry to establish precise image-to-avatar correspondence, which are then used to learn an end-to-end model for real-time tracking.

By: Shih-En Wei, Jason Saragih, Tomas Simon, Adam W. Harley, Stephen Lombardi, Michal Perdoch, Alexander Hypes, Dawei Wang, Hernan Badino, Yaser Sheikh

July 12, 2019

Spatiotemporal Haptic Effects from a Single Actuator via Spectral Control of Cutaneous Wave Propagation

IEEE World Haptics Conference

A key challenge in haptic engineering is to design methods for stimulating the skin – a continuous medium with infinitely many degrees of freedom – via practical devices with few degrees of freedom. Here, we show how to use a single actuator to generate tactile stimuli with dynamically controlled spatial extent

By: Bharat Dandu, Yitian Shao, Andrew Stanley, Yon Visell
Areas: AR/VR

July 12, 2019

Who’s Afraid of Uncorrectable Bit Errors? Online Recovery of Flash Errors with Distributed Redundancy

USENIX Annual Technical Conference (ATC)

In this paper, we present an approach for addressing the flash lifetime problem by allowing devices to operate at much higher bit error rates. We present DIRECT, a set of techniques that harnesses distributed-level redundancy to enable the adoption of new generations of denser and less reliable flash storage technologies. DIRECT does so by using an end-to-end approach to increase the reliability of distributed storage systems.

By: Amy Tai, Andrew Kryczka, Shobhit O. Kanaujia, Kyle Jamieson, Michael J. Freedman, Asaf Cidon

July 12, 2019

Tasbi: Multisensory Squeeze and Vibrotactile Wrist Haptics for Augmented and Virtual Reality

World Haptics

In this work, we present Tasbi, a multisensory haptic wristband capable of delivering squeeze and vibrotactile feedback. The device features a novel mechanism for generating evenly distributed and purely normal squeeze forces around the wrist. Our approach ensures that Tasbi’s six radially spaced vibrotactors maintain position and exhibit consistent skin coupling.

By: Evan Pezent, Ali Israr, Majed Samad, Shea Robinson, Priyanshu Agarwal, Hrvoje Benko, Nick Colonnese
Areas: AR/VR

July 12, 2019

Z-Qualities and Renderable Mass-Damping-Stiffness Spaces: Describing the Set of Renderable Dynamics of Kinesthetic Haptic Displays

IEEE World Haptics Conference

In this paper we define language and definitions to define the renderable set of dynamics that a general kinesthetic haptic display can render to a human operator.

By: Nick Colonnese, Sonny Chan

July 12, 2019

A Balanced Hybrid Active-Passive Actuation Approach for HighPerformance Haptics

IEEE World Haptics Conference

Hybrid actuation approaches for haptic interfaces generally suffer from asymmetry in active and passive torque capabilities. This paper describes the design of a high-performance balanced hybrid haptic device, which addresses the asymmetry by combining a high-power, low-impedance active compliant actuation (series-elastic actuator) with energy absorbing high-force passive actuation in parallel with a fast, low-power secondary active actuation.

By: Chembian Parthiban, Patrick Dills, It Fufuengsin, Nick Colonnese, Priyanshu Agarwal, Michael Zinn

July 12, 2019

Bellowband: A Pneumatic Wristband for Delivering Local Pressure and Vibration

IEEE World Haptics Conference

In this paper we present the design and control of Bellowband, a pneumatic wristband for localized pressure and vibration haptic feedback. The wristband has eight equally spaced pneumatic bellows that extend into the wrist, constructed from layers of polyester thermoplastic polyurethane (TPU), resulting in a flexible, lightweight (11 g) band capable of rendering complex pressure and vibration cues to the user.

By: Eric M. Young, Amirhossein H. Memar, Priyanshu Agarwal, Nick Colonnese