Segmentation maps size

[marukosan93]

Hi, thank you very much for the work on this dataset. Looks very promising for rPPG. Haven't been able to download the whole dataset yet, but from the sample data I noticed that the segmentation maps are 599 frames long and the videos contain 600 frames. One frame difference probably wouldn't matter much in practice, but just wanted to check what is the correct alignment. So, is there a skipped frame in the segmentation masks (like the first or last frame)? What would be the correct way to align the videos with the segmentation masks since they have that 1 frame difference?