What does rate mean in the shapes of features_rgb, features_flow and features_3D?

[Mirli1234]

Hi Stev,

Your work on summarizing videos using different features was very helpful to me. I was inspired a lot by your work and now I have some doubts about the feature extraction process.

What does rate mean in the shapes of features_rgb, features_flow and features_3D?https://github.com/StevRamos/video_summarization/blob/051632fd9e5ad94dd4a2b2bb31ea928f7269c1ac/README.md?plain=1#L86

I hope you can answer this question for me. Thank you so much!