High Fidelity Solver

New project for OpenCap, which is a new software package to estimate 3D human movement dynamics from smartphone videos. OpenCap strongly relies on OpenSim.
POST REPLY
User avatar
Krish Narotam
Posts: 10
Joined: Wed Nov 09, 2022 4:09 pm

High Fidelity Solver

Post by Krish Narotam » Mon Apr 15, 2024 8:20 pm

Hi,

I am having trouble with our patients data. they ended up very choppy and they constantly glitch and I am pretty sure the set up is all optimal.

This is our session: 52def0cd-e3e7-4a60-90d0-1981d9159e89

I remember hearing about a "High fidelity machine learning" solver or something that could help reprocess the video data to potentially smooth out and make the data more accurate.

I know that OpenCap hasn't been validated for prosthetics (which is something we are investigating). But I figured a different solver might fix some of the issues that we are having.

Thanks.

-Krish

User avatar
Krish Narotam
Posts: 10
Joined: Wed Nov 09, 2022 4:09 pm

Re: High Fidelity Solver

Post by Krish Narotam » Mon Apr 15, 2024 8:24 pm

if you look in "walk2" you can see part of my issue.

I forgot to put my question in, but if there is way to run it with a slower but maybe more robust solver, if you could point in me in the right direction, that would be helpful.

-Krish

User avatar
Matt Petrucci
Posts: 185
Joined: Fri Feb 24, 2012 11:49 am

Re: High Fidelity Solver

Post by Matt Petrucci » Tue Apr 16, 2024 1:04 pm

Hi Krish, I think you may be referring to the newer augmenter v0.3, which you used, but there are two things you can try that might clean up your trials. They are in the best practices here: https://www.opencap.ai/best-practices

1. Try the hand punch at any point in the trial to help with synchronization.
2. Also try and allow for more time before the person starts moving (about 1 second). In walk2 the person starts walking right at the start of the recording.

POST REPLY