Point tracking: few occluded points are not labeled as occluded

Hi,

First, thanks for making the great tool for point tracking.

I see that almost all occluded points are correctly labeled as occluded, but visually I still obverse few point among 1200=50 (videos) x 24 (points per video) are occluded. I'm sure these points are occluded because the foreground object has moved a large distance and the ground truth still stays the original position, like a position of the ground. I looked into the code, but still have not idea what caused this problem. Could you please give some suggestions or even solution? Thanks.

Best,
Zhihao

The issue does not name a file, test, or entry point. Start by reproducing the point-tracking case and tracing how occlusion labels are generated for points whose ground-truth positions remain behind a moved foreground object; done when those visibly occluded points are consistently labeled as occluded.

Written by the indexing model from the issue text.