Search found 428 matches

by Antoine Falisse
Thu Jul 18, 2024 2:11 pm
Forum: OpenCap
Topic: Calibration, Musculoskeletal model scaling failed
Replies: 3
Views: 94

Re: Calibration, Musculoskeletal model scaling failed

Hi Semia,

The subject height should be in m, not in cm. Your subject's height is 168.
We will make sure it is not possible to do that on our end moving forward.

Best,
Antoine
by Antoine Falisse
Thu Jul 18, 2024 2:02 pm
Forum: OpenCap
Topic: trial fail
Replies: 6
Views: 118

Re: trial fail

Hi Lisa, I sent back the trials with errors for reprocessing. Please take a look in a couple hours and let us know whether things are better. Some machines may have failed us. Side note, you might want to ask your participant to briefly punch the air (fail-safe synchronization mode); I see that came...
by Antoine Falisse
Tue Jul 16, 2024 4:23 pm
Forum: OpenCap
Topic: Regard to gait speed in advance analysis
Replies: 7
Views: 999

Re: Regard to gait speed in advance analysis

Hi, if you run the analysis locally https://github.com/stanfordnmbl/opencap ... nalysis.py then you can use the class to access the gait events https://github.com/stanfordnmbl/opencap ... sis.py#L81. Best, Antoine
by Antoine Falisse
Tue Jul 16, 2024 4:21 pm
Forum: OpenCap
Topic: Camera synch issue
Replies: 3
Views: 414

Re: Camera synch issue

When you download data, you should have two videos per camera per trial (eg, /Videos/Cam0/InputMedia/<trial_name>; the one with _sync is after we correct for the delay. It should thus be synchronized with the corresponding ones from other cameras(eg, Cam1 and Cam2). And the synced videos correspond ...
by Antoine Falisse
Fri Jul 12, 2024 10:58 am
Forum: OpenCap
Topic: Using Opencap and google colab to generate kinematics plots of gait
Replies: 1
Views: 106

Re: Using Opencap and google colab to generate kinematics plots of gait

There is an example here https://github.com/stanfordnmbl/opencap ... nalysis.py with some plots at the end. This might be useful. Antoine
by Antoine Falisse
Fri Jul 12, 2024 10:56 am
Forum: OpenCap
Topic: Potential Issues with Long OpenCap Session
Replies: 4
Views: 173

Re: Potential Issues with Long OpenCap Session

Hi Aaron,

Syncing is done on a per-trial basis, so there should not be any "drifting" there. If the vibrations are really big and the cameras are moving then I would recommend re-calibrating now and then. I don't see any other reasons.

Best,
Antoine
by Antoine Falisse
Thu Jun 20, 2024 10:54 am
Forum: OpenCap
Topic: Inverse Kinematics Gait Problem
Replies: 2
Views: 244

Re: Inverse Kinematics Gait Problem

For dynamics, you should run dynamic simulations: https://github.com/stanfordnmbl/opencap ... imulations We have examples here https://github.com/stanfordnmbl/opencap ... e#examples

Antoine
by Antoine Falisse
Fri Jun 14, 2024 9:12 am
Forum: OpenCap
Topic: Missing Camera videos from download
Replies: 1
Views: 215

Re: Missing Camera videos from download

Thanks for reporting this issue. Could you point to the session for which this is happening?
by Antoine Falisse
Wed Jun 12, 2024 9:07 am
Forum: OpenCap
Topic: openCap processing error
Replies: 9
Views: 431

Re: openCap processing error

I think you forgot the screenshot
by Antoine Falisse
Mon Jun 10, 2024 9:48 am
Forum: OpenCap
Topic: kinetic file generator error
Replies: 4
Views: 345

Re: kinetic file generator error