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Seyed Farokh Atashzar

18 accepted papers

2025

An LSTM Feature Imitation Network for Hand Movement Recognition from sEMG Signals

ICASSP 2025accepted

Surface Electromyography (sEMG) is a non-invasive signal that is used in the recognition of hand movement patterns, the diagnosis of diseases, and the robust control of prostheses. Despite the remarkable success of recent end-to-end Deep Learning approaches, they are still limited by the need for la…

Cited by 0SourceScholar
2024

Synergistic Functional Muscle Networks Reveal the Passivity Behavior of the Upper-Limb in Physical Human-Robot Interaction

RA-L 2024

Utilizing the intrinsic capability of the human upper limb to absorb energy during kinesthetic human-robot interaction could allow for improved haptic feedback fidelity and reduce the conservatism of control in pHRI and telerobotic systems. However, estimating this energetic signature is complex. In

Cited by 0SourceScholar
2023

HYDRA-HGR: A Hybrid Transformer-Based Architecture for Fusion of Macroscopic and Microscopic Neural Drive Information

ICASSP 2023accepted

Development of advance surface Electromyogram (sEMG)-based Human-Machine Interface (HMI) systems is of paramount importance to pave the way towards emergence of futuristic Cyber-Physical-Human (CPH) worlds. In this context, the main focus of recent literature was on development of different Deep Neu…

Cited by 0SourceScholar
2023

MyoPassivity Map: Does Multi-Channel sEMG Correlate With the Energetic Behavior of Upper-Limb Biomechanics During Physical Human-Robot Interaction?

RA-L 2023

The human arm has an intrinsic capacity to absorb energy during physical human-robot interaction (pHRI), which can be identified as biomechanical excess of passivity (EoP). This can be used as a central factor in the development of passivity-based pHRI controllers securing haptic transparency while

Cited by 3SourceScholar
2022

Deep Heterogeneous Dilation of LSTM for Transient-Phase Gesture Prediction Through High-Density Electromyography: Towards Application in Neurorobotics

RA-L 2022

Deep networks have been recently proposed to estimate motor intention using conventional bipolar surface electromyography (sEMG) signals for myoelectric control of neurorobots. In this regard, Deepnets are generally challenged by long training times (affecting practicality and calibration), complex

Cited by 24SourceScholar
2022

Hand Gesture Recognition Using Temporal Convolutions and Attention Mechanism

ICASSP 2022accepted

Advances in biosignal signal processing and machine learning, in particular Deep Neural Networks (DNNs), have paved the way for the development of innovative Human-Machine Interfaces for decoding the human intent and controlling artificial limbs. DNN models have shown promising results with respect…

Cited by 0SourceScholar
2022

Hand Gesture Recognition via Transient sEMG Using Transfer Learning of Dilated Efficient CapsNet: Towards Generalization for Neurorobotics

RA-L 2022

There has been an accelerated surge in utilizing the deep neural network to decode central and peripheral activations of the human nervous system to boost the spatiotemporal resolution of neural interfaces used in human-centered robotic systems, such as prosthetics, and exoskeletons. Deep learning m

Cited by 18SourceScholar
2021

Design, Fabrication, and Validation of a New Family of 3D-Printable Structurally-Programmable Actuators for Soft Robotics

RA-L 2021

Soft robots have shown great potential for manufacturing exoskeletons, prostheses, and surgical robots. In this paper, we propose the concept of programmable soft robotics and will experimentally evaluate the performance in the context of continuum mechanisms. The proposed novel concept is motivated

Cited by 8SourceScholar
2021

Discrete Windowed-Energy Variable Structure Passivity Signature Control for Physical Human-(Tele)Robot Interaction

RA-L 2021

In this letter, we propose a novel adaptive iterative stabilization method for physical human-(tele)robot interaction, named Discrete Windowed-Energy Variable Structure Passivity Signature Control (DWE-VSPSC). The proposed stabilizer is capable of adaptively translating the knowledge domain regardin

Cited by 8SourceScholar
2021

Few-Shot Learning for Decoding Surface Electromyography for Hand Gesture Recognition

ICASSP 2021accepted

This work is motivated by the recent advancements of Deep Neural Networks (DNNs) for myoelectric prosthesis control. In this regard, hand gesture recognition via surface Electromyogram (sEMG) signals has shown a high potential for improving the performance of myoelectric control prostheses. Although…

Cited by 0SourceScholar
2021

Temporal Dilation of Deep LSTM for Agile Decoding of sEMG: Application in Prediction of Upper-Limb Motor Intention in NeuroRobotics

RA-L 2021

The spectrotemporal information content of surface electromyography has shown strong potential in predicting the intended motor command. During the last decade, with accelerated exploitation of powerful deep-learning techniques aligned with advancements in active prostheses and neurorobots, a great

Cited by 36SourceScholar
2021

Toward Deep Generalization of Peripheral EMG-Based Human-Robot Interfacing: A Hybrid Explainable Solution for NeuroRobotic Systems

RA-L 2021

This letter investigates the feasibility of a generalizable solution for human-robot interfaces through peripheral multichannel Electromyography (EMG) recording. We propose a tangential approach in comparison to the literature to minimize the need for (re)calibration of the system for new users. The

Cited by 48SourceScholar
2020

Energetic Passivity Decoding of Human Hip Joint for Physical Human-Robot Interaction

RA-L 2020

The capacity of the biomechanics of human limbs to absorb energy during physical human-robot interaction (pHRI) can play an imperative role in controlling the performance of human-centered robotics systems. Using the concept of “excess of passivity,” we have recently designed passivity signature map

Cited by 12SourceScholar
2020

Parallel Haptic Rendering for Orthopedic Surgery Simulators

RA-L 2020

This study introduces a haptic rendering algorithm for simulating surgical bone machining operations. The proposed algorithm is a new variant of the voxmap point-shell method, where the bone and surgical tool geometries are represented by voxels and points, respectively. The algorithm encompasses co

Cited by 9SourceScholar
2020

XceptionTime: Independent Time-Window Xceptiontime Architecture for Hand Gesture Classification

ICASSP 2020accepted

Capitalizing on the goal of addressing identified shortcomings of recent solutions developed for recognition tasks via sparse multichannel surface Electromyography (sEMG) signals, the paper proposes a novel deep learning model, referred to as the XceptionTime architecture. The proposed innovative Xc…

Cited by 0SourceScholar
2019

Design and Implementation of a Two-DOF Robotic System with an Adjustable Force Limiting Mechanism for Ankle Rehabilitation

ICRA 2019poster

This paper presents a novel light-weight back-drivable inherently-safe robotic mechanism for delivering ankle rehabilitation therapies. The robot is designed to be used as the ankle module of a multi-purpose lower-limb rehabilitation robot. A novel friction-based safety feature has been introduced t…

Cited by 3SourceScholar
2019

HMFP-DBRNN: Real-Time Hand Motion Filtering and Prediction via Deep Bidirectional RNN

RA-L 2019

Pathological hand tremor (PHT) is among the most common movement symptoms of several neurological disorders including Parkinson's disease and essential tremor. Extracting PHT is of paramount importance in several engineering and clinical applications such as assistive and robotic rehabilitation tech

Cited by 18SourceScholar
2018

Multiple-Model and Reduced-Order Kalman Filtering for Pathological Hand Tremor Extraction

ICASSP 2018accepted

Tremor extraction techniques are considered as the central component of several rehabilitative and compensatory robotic technologies, and the accuracy of such filters can directly affect the performance of the aforementioned technologies. Motivated by this fact, the paper proposes an adaptive estima…

Cited by 0SourceScholar