Missing Annotations at 1Hz

[2006pmach]

Hi, as far as I understood there are annotations every 30 frames (1Hz). However, for some sequences there are annotations missing for many timestamps like vid0044 between frame 480 and 1290 there aren't any annotations provided at all. First I thought I can just repeat the previous annotation because the object might not move. However, vid0044 shows a dog that is moving a lot during this time. So how do I have to interpret this missing annotations? Are they simply not important and you don't want to compare here? Thanks in advance.

[jvlmdr]

Hi! That is correct. Not all frames are annotated. The dataset distinguishes between unannotated frames (as you are describing) and negatively annotated frames, so the absence of an annotation does not mean that the object is not present. Frames that are unannotated will not contribute to the error (although you are welcome to use them for tracking).