step in extracting frames from video
ZENGXH opened this issue · comments
Hi Tianwei,
I would like to ask for the -s
(step) setting you used in this command.
Did you change the -s 1
to -s 8
or -s 16
? If not, how do you skip the sampling of frames?
Thanks! ;)
Hi @ZENGXH , I did not use optical flow codes from cuhk. I use https://github.com/feichtenhofer/gpu_flow for flow extraction.
And for here, actually I think "-s 1" should be used. During extracting feature on ActivityNet, we set each 16 frames as a snippet, and we calculate 5 frames using 6 consecutive frames in the middle of snippet. Thus it should be -s 1.