Publications related to Simulation of human gait with body weight support: benchmarking models and unloading strategies

SURE-Based Non-Local Means

Dimitri Nestor Alice Van De Ville, Michel Kocher

Non-local means (NLM) provides a powerful framework for denoising. However, there are a few parameters of the algorithm-most notably, the width of the smoothing kernel-that are data-dependent and difficult to tune. Here, we propose to use Stein's unbiased ...

Institute of Electrical and Electronics Engineers2009

Pelvic motion measurement during over ground walking, analysis and implementation on the WalkTrainer reeducation device

Reymond Clavel, Mohamed Bouri, Yves Stauffer, Patrick Métrailler, Jacques Fournier, Yves Allemand

Pelvic motions are of great importance while walking, and have thus to be taken into account when developing and controlling rehabilitation devices. This paper will first introduce a new reeducation devices for paraplegic people: the WalkTrainer. This devi ...

2008

Asymmetric Gaussian Multiple Descriptions and Asymmetric Multilevel Diversity Coding

Suhas Diggavi

We consider multiple description source coding problem with Gaussian source and mean squared error, for

K=3

descriptions. We obtain an outer bound for the rate region of the problem. We also derive an inner bound for the problem based on successively ref ...

2007

Hierarchical wavelet modelling of environmental sensor data

Anthony Christopher Davison, Yann Ruffieux

Motivated by the need to smooth and to summarize multiple simultaneous time series arising from networks of environmental monitors, we propose a hierarchical wavelet model for which estimation of hyperparameters can be performed by marginal maximum likelih ...

2007

Data-Driven Controller Tuning Using Frequency Domain Specifications

Alireza Karimi, Roland Longchamp, Daniel Garcia

A model-free PID controller tuning approach is presented in this paper. The method can handle different stability and performance indicators in the frequency domain. The phase margin, gain margin, crossover frequency and more advanced indicators which are ...

2006

Relationships between dual-task related changes in stride velocity and stride time variability in healthy older adults

Kamiar Aminian, Bijan Najafi

Dual-task related gait changes have been previously reported for healthy older adults, suggesting that gait control requires attention. Compared to balance control, the involvement of attention in the control of the rhythmic stepping mechanism, as reflecte ...

2006

Ambulatory gait analysis in Parkinson's Disease: Application of a novel method based on kinematics sensors

Kamiar Aminian, Catherine Dehollain, Arash Salarian

Summary: Using our ambulatory monitoring system, ASUR, 13 Parkinsonian patients were monitored for periods of up to 5 hours while they were free to perform activities at will. Every one hour patients did a UPDRS test as the clinical assessment. During the ...

ESMAC2004

Gait assessment in Parkinson's disease: toward an ambulatory system for long-term monitoring

Kamiar Aminian, Catherine Dehollain, Arash Salarian

An ambulatory gait analysis method using body-attached gyroscopes to estimate spatio-temporal parameters of gait has been proposed and validated against a reference system for normal and pathologic gait. Later, ten Parkinson's disease (PD) patients with su ...

2004

Ambulatory measurement of gait parameters in Parkinson's disease: Effects of subthalamic stimulation

Kamiar Aminian, Catherine Dehollain, Arash Salarian

Introduction: In this study the effect of subthalamic nucleus neep brain Stimulation (STN-DBS) on the gait parameters of patients with Parkinson's disease (PD) was examined using an ambulatory gait analysis system based on miniature gyroscopes. The aim was ...

2003

Multigrid Image Reconstruction from Arbitrarily Spaced Samples

Michaël Unser, Michael Sühling, Muthuvel Arigovindan

We propose a novel multiresolution-multigrid based signal reconstruction method from arbitrarily spaced samples. The signal is reconstructed on a uniform grid using B-splines basis functions. The computation of spline weights is formulated as a variational ...

IEEE2002

Simulation of human gait with body weight support: benchmarking models and unloading strategies

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SURE-Based Non-Local Means

Pelvic motion measurement during over ground walking, analysis and implementation on the WalkTrainer reeducation device

Asymmetric Gaussian Multiple Descriptions and Asymmetric Multilevel Diversity Coding

Hierarchical wavelet modelling of environmental sensor data

Data-Driven Controller Tuning Using Frequency Domain Specifications

Relationships between dual-task related changes in stride velocity and stride time variability in healthy older adults

Ambulatory gait analysis in Parkinson's Disease: Application of a novel method based on kinematics sensors

Gait assessment in Parkinson's disease: toward an ambulatory system for long-term monitoring

Ambulatory measurement of gait parameters in Parkinson's disease: Effects of subthalamic stimulation

Multigrid Image Reconstruction from Arbitrarily Spaced Samples

SURE-Based Non-Local Means

Asymmetric Gaussian Multiple Descriptions and Asymmetric Multilevel Diversity Coding

Hierarchical wavelet modelling of environmental sensor data

Pelvic motion measurement during over ground walking, analysis and implementation on the WalkTrainer reeducation device

Ambulatory gait analysis in Parkinson's Disease: Application of a novel method based on kinematics sensors

Data-Driven Controller Tuning Using Frequency Domain Specifications

Relationships between dual-task related changes in stride velocity and stride time variability in healthy older adults

Ambulatory measurement of gait parameters in Parkinson's disease: Effects of subthalamic stimulation

Gait assessment in Parkinson's disease: toward an ambulatory system for long-term monitoring

Multigrid Image Reconstruction from Arbitrarily Spaced Samples