Search found 10 matches

by Rodrigo Bini
Mon Jun 26, 2023 4:36 pm
Forum: OpenSim
Topic: OpenSense - Delsys IMUs
Replies: 4
Views: 573

Re: OpenSense - Delsys IMUs

Wonderful. Thanks Ayman. I think we can get this right and should be able to share some resources for others.
by Rodrigo Bini
Sun Jun 25, 2023 3:43 pm
Forum: OpenSim
Topic: OpenSense - Delsys IMUs
Replies: 4
Views: 573

Re: OpenSense - Delsys IMUs

Thanks Ayman for the prompt response. I adapted some codes to generate quat orientations from IMU data collected from Delsys (acc, mag and gyro). I managed to place the sensors in the model and ran the IK-IMU. However, the motion was unrealistic and wanted to check the following: 1- Does the orienta...
by Rodrigo Bini
Thu Jun 22, 2023 9:44 pm
Forum: OpenSim
Topic: OpenSense - Delsys IMUs
Replies: 4
Views: 573

OpenSense - Delsys IMUs

Hi,
I am working on a project to use the Delsys IMUs to drive IK in OpenSense and wanted to check if questions are being taken for this topic. The OpenSense stand-alone forum seems to be locked so I thought I would check first.
Thanks,
Rodrigo
by Rodrigo Bini
Mon Sep 26, 2022 6:18 pm
Forum: XSens - OpenSim modelling
Topic: XSens - OpenSim modelling Public Forum
Replies: 2
Views: 744

Re: XSens - OpenSim modelling Public Forum

Hi Victor,

Apologies for the horrible delay in responding. Somehow, I have not received a notification of your message. Happy to speak via email (bini.rodrigo@gmail.com) if you still need assistance.
by Rodrigo Bini
Sun Mar 27, 2022 8:43 pm
Forum: OpenSim
Topic: Opensense - quaternion sto-file information
Replies: 4
Views: 657

Re: Opensense - quaternion sto-file information

Hi, I am probably on a similar boat. I can get the Orientation data from our IMUs into Matlab but I have not managed to get the API to work in the computers that I have access to. I am struggling to generate the .sto file with the expectation that this file should have a mix of comma and tab separat...
by Rodrigo Bini
Fri Jun 21, 2019 9:28 pm
Forum: OpenSense
Topic: MatLab example
Replies: 4
Views: 702

Re: MatLab example

Hi,
I was checking the code and 'XsensDataReader.m' seems to be missing in the list of example files.
Regards,
Rodrigo
by Rodrigo Bini
Thu Mar 15, 2018 5:48 pm
Forum: Full-body Musculoskeletal Model of the Lumbar Spine
Topic: Full-body Musculoskeletal Model of the Lumbar Spine Public Forum
Replies: 1
Views: 723

Re: Full-body Musculoskeletal Model of the Lumbar Spine Public Forum

Dear Margareth, we are using your model in a study involving delivery tasks and the SO processing of a file with ~20s is taking 10-12hrs. I was wondering if you would have any advice on ways that we could reduce this time. I am aware that this is potentially due to the large number of muscles that t...
by Rodrigo Bini
Mon Feb 12, 2018 8:14 pm
Forum: OpenSim
Topic: Inverse kinematics results
Replies: 12
Views: 1835

Re: Inverse kinematics results

Hi James, thanks for your response. However, I could not understand that. If you land on your toes, the external forces lead your ankle to dorsi-flexion and the muscle response should be plantar-flexion, in terms of movement and moments. However, when we plot the output from Inverse Dynamics, we are...
by Rodrigo Bini
Mon Feb 05, 2018 8:18 pm
Forum: OpenSim
Topic: Inverse kinematics results
Replies: 12
Views: 1835

Re: Inverse kinematics results

Hi, just wanted to check if the output from inverse dynamics are internal or external moments. My question is because, during drop landing tasks, we are observing ankle dorsi flexion torque (external torque) with the appropriate muscle predicted forces via Static Optimisation (i.e. gastrocs, soleus,...
by Rodrigo Bini
Sun Nov 05, 2017 5:37 pm
Forum: OpenSim
Topic: Xsens (c3d) to OpenSim
Replies: 2
Views: 923

Re: Xsens (c3d) to OpenSim

Hi Bruno,

I managed to adapt some Matlab codes that allows XSens users to export the coordinates from the C3D files into TRC files that OpenSim would accept.
Happy to share these codes with you (bini.rodrigo@gmail.com.).
Regards,
Rodrigo