Alon Wolf
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View article: Inferring Fine Finger Motions for Prosthetic Control: An Ultrasound-Based Approach to Real-Time Estimation of Finger Kinematics
Inferring Fine Finger Motions for Prosthetic Control: An Ultrasound-Based Approach to Real-Time Estimation of Finger Kinematics Open
A central challenge in building robotic prostheses is the creation of a sensor-based system able to read physiological signals from the lower limb and instruct a robotic hand to perform various tasks. Existing systems typically perform dis…
View article: HUGO, a High-Resolution Tactile Emulator for Complex Surfaces
HUGO, a High-Resolution Tactile Emulator for Complex Surfaces Open
Many of our activities rely on tactile feedback perceived through mechanoreceptors in our skin. While visual and auditory devices provide immersive experiences, cutaneous feedback devices are typically limited in the range of sensations th…
View article: On Gait Stability: Correlations between Lyapunov Exponent and Stride Time Variability
On Gait Stability: Correlations between Lyapunov Exponent and Stride Time Variability Open
Lyapunov exponent is a promising parameter to ascertain the stability of the human gait. In this work, we use a time-series model based on a second-order delay-system with inertial measurement units placed on the foot and wrist. Stability …
View article: Reliability of automated topographic measurements for spine deformity
Reliability of automated topographic measurements for spine deformity Open
Purpose This study introduces a novel surface-topographic scanning system capable of automatically generating a suite of objective measurements to characterize torso shape. Research Question : what is the reliability of the proposed system…
View article: Towards Predicting Fine Finger Motions from Ultrasound Images via Kinematic Representation
Towards Predicting Fine Finger Motions from Ultrasound Images via Kinematic Representation Open
A central challenge in building robotic prostheses is the creation of a sensor-based system able to read physiological signals from the lower limb and instruct a robotic hand to perform various tasks. Existing systems typically perform dis…
View article: U-mesh: Human Correspondence Matching with Mesh Convolutional Networks
U-mesh: Human Correspondence Matching with Mesh Convolutional Networks Open
The proliferation of 3D scanning technology has driven a need for methods to interpret geometric data, particularly for human subjects. In this paper we propose an elegant fusion of regression (bottom-up) and generative (top-down) methods …
View article: Scan-Driven Fully-Automated Pipeline for a Personalized, 3D Printed Low-Cost Prosthetic Hand
Scan-Driven Fully-Automated Pipeline for a Personalized, 3D Printed Low-Cost Prosthetic Hand Open
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View article: Latent disease models estimate symptom onset in familial frontotemporal lobar degeneration and enable novel designs for early‐stage clinical trials
Latent disease models estimate symptom onset in familial frontotemporal lobar degeneration and enable novel designs for early‐stage clinical trials Open
Background Measuring changes in the earliest phases of familial frontotemporal lobar degeneration (f‐FTLD) and estimating symptom onset has important implications for clinical care. Early stage clinical trials have begun for f‐FTD, but the…
View article: Analysis of subject specific grasping patterns
Analysis of subject specific grasping patterns Open
Existing haptic feedback devices are limited in their capabilities and are often cumbersome and heavy. In addition, these devices are generic and do not adapt to the users' grasping behavior. Potentially, a human-oriented design process co…
View article: Self-motion trajectories can facilitate orientation-based figure-ground segregation
Self-motion trajectories can facilitate orientation-based figure-ground segregation Open
Segregation of objects from the background is a basic and essential property of the visual system. We studied the neural detection of objects defined by orientation difference from background in barn owls ( Tyto alba). We presented wide-fi…
View article: BRML Grasp Dataset
BRML Grasp Dataset Open
The dataset contains kinematic and kinetic measurements of 31 subjects grasping five different objects multiple times (1083 grasp instances).
View article: Active lifestyles moderate clinical outcomes in autosomal dominant frontotemporal degeneration
Active lifestyles moderate clinical outcomes in autosomal dominant frontotemporal degeneration Open
Introduction Leisure activities impact brain aging and may be prevention targets. We characterized how physical and cognitive activities relate to brain health for the first time in autosomal dominant frontotemporal lobar degeneration (FTL…
View article: Comparison of sporadic and familial behavioral variant frontotemporal dementia (FTD) in a North American cohort
Comparison of sporadic and familial behavioral variant frontotemporal dementia (FTD) in a North American cohort Open
Introduction Behavioral variant frontotemporal dementia (bvFTD) may present sporadically or due to an autosomal dominant mutation. Characterization of both forms will improve understanding of the generalizability of assessments and treatme…
View article: INS volume 25 issue 6 Cover and Back matter
INS volume 25 issue 6 Cover and Back matter Open
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View article: Planar Multi-Link Swimmers: Experiments and Theoretical Investigation using “Perfect Fluid” Model
Planar Multi-Link Swimmers: Experiments and Theoretical Investigation using “Perfect Fluid” Model Open
Summary Robotic swimmers are currently a subject of extensive research and development for several underwater applications. Clever design and planning must rely on simple theoretical models that account for the swimmer’s hydrodynamics in o…
View article: Distinct Wrist Patterns Founded on Measurements in Plain Radiographs
Distinct Wrist Patterns Founded on Measurements in Plain Radiographs Open
Background In joints, structure dictates function and consequently pathology. Interpreting wrist structure is complicated by the existence of multiple joints and variability in bone shapes and anatomical patterns in the wrist. Previous stu…
View article: Soft Tissue Artifact Compensation Using Triangular Cosserat Point Elements (TCPEs)
Soft Tissue Artifact Compensation Using Triangular Cosserat Point Elements (TCPEs) Open
Existing methods which compensate for the Soft Tissue Artifact (STA) in optoelectronic motion measurements estimate the rigid motion of a nearly rigid underlying body segment based on analysis of the motion of all fiducial markers. The obj…
View article: Bone Orientation and Position Estimation Errors Using Cosserat Point Elements and Least Squares methods: Application to Gait
Bone Orientation and Position Estimation Errors Using Cosserat Point Elements and Least Squares methods: Application to Gait Open
The aim of this study was to analyze the accuracy of bone pose estimation based on sub-clusters of three skin-markers characterized by triangular Cosserat point elements (TCPEs) and to evaluate the capability of four instantaneous physical…
View article: Bone Pose Estimation in the Presence of Soft Tissue Artifact Using Triangular Cosserat Point Elements
Bone Pose Estimation in the Presence of Soft Tissue Artifact Using Triangular Cosserat Point Elements Open
Accurate estimation of the position and orientation (pose) of a bone from a cluster of skin markers is limited mostly by the relative motion between the bone and the markers, which is known as the Soft Tissue Artifact (STA). This work pres…
View article: Chest Wall Kinematics Using Triangular Cosserat Point Elements in Healthy and Neuromuscular Subjects
Chest Wall Kinematics Using Triangular Cosserat Point Elements in Healthy and Neuromuscular Subjects Open
Optoelectronic plethysmography (OEP) is a noninvasive method for assessing lung volume variations and the contributions of different anatomical compartments of the chest wall (CW) through measurements of the motion of markers attached to t…
View article: Bone orientation and position estimation errors using Cosserat point elements and least squares methods: Application to gait
Bone orientation and position estimation errors using Cosserat point elements and least squares methods: Application to gait Open
The aim of this study was to analyze the accuracy of bone pose estimation based on sub-clusters of three skin-markers characterized by triangular Cosserat point elements (TCPEs) and to evaluate the capability of four instantaneous physical…
View article: Positive outcomes following gait therapy intervention for hip osteoarthritis: A longitudinal study
Positive outcomes following gait therapy intervention for hip osteoarthritis: A longitudinal study Open
Footwear‐generated biomechanical manipulation of lower‐limb joints was shown to beneficially impact gait and quality of life in knee osteoarthritis patients, but has not been tested in hip osteoarthritis patients. We examined a customized …
View article: Reduction of hip joint reaction force via medio‐lateral foot center of pressure manipulation in bilateral hip osteoarthritis patients
Reduction of hip joint reaction force via medio‐lateral foot center of pressure manipulation in bilateral hip osteoarthritis patients Open
Loading/excessive loading of the hip joint has been linked to onset and progression of hip osteoarthritis. Footwear‐generated biomechanical manipulation in the frontal plane has been previously shown in a cohort of healthy subjects to caus…