improve optical flow to use it for framerate upsampling
I like to drop an idea to improve optical flow for framerate upsampling.
I do work a lot super8 filmscans with are 18 fps.
When I drop these in a 25fps sequence and enable optical flow I get great smooth results!
Optical flow however doesnot work wel with scene changes, you get wierd frames there.
Can optical flow be enhanced with scene detection prior the optical flow render?
(This also applies when you export with Optical flow enabled)
I also tried this with rapid droneshots with fast vertical movement which where shot in 25fps.
If you upsample them with optical flow to 50fps you get a smooth result.
Other stuff I tried was using a 4K camera like Sony AX53 with can only do 25fps.
If you walk around while shooting with this camera you get a bit restless feeling when viewing the result.
converting to 50fps looks much better.
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