Design and Development of a Real-Time, Low-Cost IMU Based Human Motion Capture System

Raghavendra, P.; Sachin, M.; Srinivas, P. S.; Talasila, Viswanath

doi:10.1007/978-981-10-3935-5_17

Cited by 17 publications

(8 citation statements)

References 8 publications

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“…En los últimos años, los sistemas de captura de movimiento inerciales IMU (unidades de medición inerciales) han sido investigados como una alternativa para medir la cinemática humana, ya que funcionan como un sistema de sensor activo que permite mediciones fuera de un ambiente experimental y calculan la rotación de segmentos corporales [43]. Los IMU son una combinación de giróscopos que miden las velocidades angulares alrededor de un sistema de coordenadas de un sensor, magnetómetros que miden el campo magnético de la tierra y acelerómetros que miden la aceleración gravitacional y traslacional [44].…”

Section: Sistemas De Captura Del Movimiento Inercialesunclassified

“…Los sistemas magnéticos se están utilizando cada vez más debido a sus características de portabilidad que permiten obtener mediciones fuera del laboratorio, como es el caso de los estudios deportivos [43], aunque no se consideran confiables en aplicaciones que requieren un alto grado de precisión [51]. En el análisis de la marcha, se han registrado consistencias con otros sistemas de captura más precisos en cuanto al análisis de la cadencia de la marcha y cinemática de las articulaciones del tobillo y rodilla, pero menor concordancia con los registros de parámetros espaciotemporales para la articulación de la cadera.…”

Section: Sistemas De Captura Del Movimiento Magnéticosunclassified

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Human motion capture and analysis systems: a systematic review/Sistemas de captura y análisis de movimiento cinemático humano: una revisión sistemática

et al. 2018

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El movimiento humano ha sido sujeto de numerosas investigaciones, principalmente en las ciencias biomédicas, ciencias del deporte y animación 3D. Dada la gran cantidad de tecnologías disponibles en el mercado, surge la necesidad de realizar una vigilancia tecnológica que determine sus principales ventajas y limitaciones, aplicaciones y situación actual de Colombia en cuanto a estudios que involucren este tipo de tecnologías. Para lograrlo, se realizó una revisión sistemática de literatura científica a nivel global, siguiendo los parámetros de las metodologías PRISMA y PRISMA P-2015. Se encontró que las tecnologías cinemáticas de análisis de movimiento se dividen en ópticos, inerciales y magnéticos, dónde los sistemas ópticos reportan el mayor número de publicaciones, siendo la tecnología Vicon la más utilizada, debido al gran abanico de aplicaciones que presenta. En cuanto a Colombia, se evidencia poca participación en estos estudios, por lo que se debe fortalecer esta competencia tanto a nivel académico como empresarial.

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Section: Sistemas De Captura Del Movimiento Inercialesunclassified

Section: Sistemas De Captura Del Movimiento Magnéticosunclassified

Human motion capture and analysis systems: a systematic review/Sistemas de captura y análisis de movimiento cinemático humano: una revisión sistemática

et al. 2018

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“…As an alternative, open-source software has been presented as a solution, nonetheless, its use can be time-consuming for non-technical experts and those developments may still be in their infancy (OpenSim, MoComp®) [8]. Likewise, studies have presented low-cost motion capture systems based on inertial sensors for real-time human motion analysis, using visualization tools such as Blender game engine and Unity3D [9,10]; however, these require more research given that they are not suitable for high-precision kinematic analysis which is essential for clinical applications.…”

Section: Introductionmentioning

confidence: 99%

ASPEBI: A MATLAB Tool for Motion Analysis of Non-Specific Low Back Pain Patients

Rueda-Gaitán,

Cardenas-Prieto,

Jiménez

et al. 2023

Int. J. Onl. Eng.

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Low back pain is one of the most common health issues worldwide, and non-specific low back pain (NLBP), whose causes are unknown, represents 85% of these cases. Hamstring Extension in Bipedal Position (PEBI) is a clinical sign designed to discriminate the cause of the pain of NLBP as of muscular origin due to the stiffness of the hamstring. Currently, PEBI lacks quantitative assessment, which is required to be utilized in primary care. To support the process of getting such information, in this work, we present ASPEBI, a customized MATLAB® app developed to provide researchers and clinicians with a tool for the visualization of the kinematic and spatiotemporal gait parameters of patients examined with PEBI. This objective information is processed from data collected with the Xsens MTw Awinda system, which can be analyzed by the final users. Lastly, this tool is user-friendly with a modular design that allows integration of other physiological technologies to conduct multimodal analysis, and it could be utilized to explore issues related to older populations or populations with neurodegenerative diseases, among others.

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“…The use of external sensors to capture movement and muscle contraction dynamics allows for assessing the effects mentioned above and compensating for the same. Integration of motion (16) and EMG sensors (17) with the stimulation unit enables the collection of vital information of human motion and muscle contraction. The information gathered supports the development of control strategies (18) to overcome the mentioned challenges.…”

Section: Introductionmentioning

confidence: 99%

A Functional Electrical Stimulator to Enable Grasping Through Wrist Flexion

Mahendra¹,

Talasila²,

Dutt

et al. 2022

International Journal of Biology and Biomedical Engineering

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Functional electrical stimulation is an assistive technique that utilizes electrical discharges to produce functional movements in patients suffering from neurological impairments. In this work, a biphasic, programmable current- controlled functional electrical stimulator system is designed to enable hand grasping facilitated by wrist flexion. The developed system utilizes an operational amplifier based current source and is supported by a user interface to adjust stimulation parameters. The device is integrated with an accelerometer to measure the degree of stimulated movement. The system is validated, firstly, on two passive electrical loads and subsequently on four healthy volunteers. The device is designed to deliver currents between 0-30mA, and the error between the measured current and simulated current for two loads were -0.967±0.676mA and -0.995±0.97mA. The angular data from the accelerometer provided information regarding variations in movement between the subjects. The architecture of the proposed system is such that it can, in principle, automatically adjust the parameters of simulation to induce the desired movement optimally by measuring a stimulated movement artifact (e.g., angular position) in real time.

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Design and Development of a Real-Time, Low-Cost IMU Based Human Motion Capture System

Cited by 17 publications

References 8 publications

Human motion capture and analysis systems: a systematic review/Sistemas de captura y análisis de movimiento cinemático humano: una revisión sistemática

Human motion capture and analysis systems: a systematic review/Sistemas de captura y análisis de movimiento cinemático humano: una revisión sistemática

ASPEBI: A MATLAB Tool for Motion Analysis of Non-Specific Low Back Pain Patients

A Functional Electrical Stimulator to Enable Grasping Through Wrist Flexion

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