Inconsistent time value in .CSV export compared to the time in timeline UI

Label Studio Support
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1

Hi all,
After I finished annotating videos, I exported the annotations .CSV and found inconsistencies where the time in the .CSV do not match with the time in the Labelling timeframe UI.

For example, the time for a logo to appear was:

  • 3.12 seconds in the Labeling timeframe UI, but
  • 3.52 seconds in the .CSV export

Notes:

  • My videos are 25fps
  • I used the ‘video object tracking’ template
  • I updated the frame rate in the template to 25fps as per the documentation

Questions:

  1. Could this be an issue in the Labelling Timeframe UI?
  2. Any recommendations on resolution?
  3. Should the values in the .CSV be the source of truth?

Thanks a lot in advance!

2

Hello, please check the Video Format section here:

You can try to convert your video file to the recommended format and replace your old file with a newly converted. Will you see any mismatch in frame timing? If yes, it means your old video had variable framerate or something corrupted. Unfortunately, it won’t be possible to recover labeling in this case.