How many frames are sampled per video for the training and testing process?

[Nastu-Ho]

No description provided.

[mmaaz60]

Hi @Nastu-Ho,

Thank you for your interest in our work. We sample 100 frames uniformly during both training and testing. Thank you

[onlyonewater]

@mmaaz60 , hi, can I sample more than 100 frames to infer on my own dataset?

[onlyonewater]

from #14, I know how to change the code, but how to change the code to extract the 1 frame or 2 frames per second? I think this implementation makes sense for long videos.

[mmaaz60]

Hi @onlyonewater,

It would be something similar to below,

sample_fps = 1 

vr = VideoReader(video_path, ctx=cpu(0))
fps = vreader.get_avg_fps()
f_start = 0
f_end = len(vr) - 1
t_stride = int(round(float(fps) / sample_fps))
all_pos = list(range(f_start, f_end + 1, t_stride))
img_array = vr.get_batch(all_pos).asnumpy()

I hope this will be helpful. Thank YOu

[onlyonewater]

ok, I got it, thanks @mmaaz60