varvrar / ios_logger Goto Github PK

I change the imuFreq, but the fps of imu is not changed. I want to consult you about how to change the fps of imu.

Thanks for your nice work.
I have compiled and installed the ios_logger app on my iphone11, but after I click "start" to record a video and click "stop", I cannot find any recorded files on my iPhone's "File" app. No error message is reported from the ios_logger app. Is there anything I missed to run this app and record data?

Hello Varvrar,

First of all thanks a lot for the job you have done.
I managed to run your app on my iPhone X and everything works well.
Nevertheless, I have some trouble regarding the camera settings. The camera is not focusing properly leading to blurred images.
Moreover, is there a way to tune the camera parameters (resolution, etc.) ?

Thanks,
Pm

Is it possible to collect arfaceanchor.blendshapelocation data using your app?

there is problem during arcore mode recording data, but there is no problem before your last sep.7 update.

Can I use a Windows computer for video capture without an Apple computer?

Hi @Varvrar,

Thank you so much for the app. Is there any way we can capture LiDAR information as well? If so could you point me to the direction of how you would go about it?

Hello!
I tried to observe camera poses using COLMAP (by passed logged quat and translation vector to COLMAP), but faced the problem that camera poses from ios_logger look like something fitted on the sphere, but the real path of the camera definitely differs from the "spherical" one. Why does it happen? And how can I get the real poses?
Thanks!

Hi,
Thanks for your great work!
I would like to ask is there a way to get distortion coefficients without using AVCameraCalibrationData?

Hello,Varvrar, thank you for your great work. But now I have a problem. I run vins-mono test with the data collected by ios-logger, and the trajectory diverges seriously. In contrast, mars-logger(https://github.com/OSUPCVLab/marslogger_ios/tree/56bfe7e78a5f7ea5ad10f97c4fe0d7bd032b0ede), another similar data collection software, runs well. Do others have similar problems? We look forward to answering them. Thank you

Hello Varvrar!

Thanks for you great work! I have used this nice app to recorder data for pose estimation. I was wondering how I could choose different back cameras since there are multiple back cameras from iphone 7. For example, I was trying to use the TelephotoCamera or UltraWideCamera, and based on the apple documentation I need to use AVCaptureDeviceDiscoverySession:

AVCaptureDeviceDiscoverySession *session =
[AVCaptureDeviceDiscoverySession
discoverySessionWithDeviceTypes:AVCaptureDeviceTypeBuiltInUltraWideCamera
mediaType:AVMediaTypeVideo
position:AVCaptureDevicePositionUnspecified];

However, it doesn't work. Could you please give some suggestions?

Thanks!

thanks for your incredible work, your great work would help me a lot in my research.
I want to know, could ios_logger record the timestamp of imu and camera data respectively ?
thank you very much in advance.