-
Notifications
You must be signed in to change notification settings - Fork 47
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
Ego-Exo4D IMU retrieval #342
Comments
Hi @lixinghe1999 , thanks for your reply! I've already extracted them from .vrs files by leveraging an example notebook in this repository, but I'd like to understand:
|
|
Yep as I said I've already done the extraction parts, but about the second point the timestamps don't start from 0 for each take. If you look at takes example that I've previously reported, |
Can you specify how to get the start_sec and end_sec of IMU in VRS file?
Previously I already found the IMU duration can be shorted than Video (VRS), but I do forget the potential offset |
I've simply taken the first and last timestamps of the stream in the .vrs extracted IMU samples and converted them in seconds |
Hello!
I'm working on IMU data, and I'm interested on accelerometer and gyroscope. I've downloaded
takes_noimagestreams
first and thentake_trajectory
(following this issue)I've noticed that the second split contains
['device_linear_velocity_x_device', 'device_linear_velocity_y_device', 'device_linear_velocity_z_device']
, but they're not accelerations.Last, I haven't fully understood how to get the IMU data aligned with "task_start_sec" and "task_end_sec". Given the following take, how can I retrieve the exact segment from here?
From the .vrs file I've got:
Please note: those are timestamps converted from ns to s according to Ego-Exo4D docs.
Thank you in advance!
The text was updated successfully, but these errors were encountered: