On: Advancing Research on Video Understanding with the YouTube-BoundingBoxes Dataset

[jalk]

Wondering who and how they manually boxed/labeled the objects. Sounds like an amazing job :)

[Guyag → jalk]

Their method is detailed in the whitepaper [1], mainly section 3.2. TL;DR mturk for high level annotations (frame contains/does not contain object in class), and internal annotators for bounding boxes.

[1] https://arxiv.org/pdf/1702.00824.pdf

[0x00000000 → jalk]

Probably done with the new type of captcha (select all boxes with ____)

[maxmcd → 0x00000000]

The bounding boxes look more exact than that. I have also only seen that new type of captcha with images that look like they are from streetview.