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Butterflow: motion interpolated videos from the command line

95 pointsby lshover 6 years ago

8 comments

cheeaunover 6 years ago
Found this cool project (not mine) that uses butterflow for applying motion interpolation to Himawari-8 satellite images: <a href="https:&#x2F;&#x2F;github.com&#x2F;dandelany&#x2F;animate-earth" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;dandelany&#x2F;animate-earth</a><p>The final results look really nice <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;channel&#x2F;UC6Mlo4zfmEITcNoCpBKfEfg&#x2F;playlists" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;channel&#x2F;UC6Mlo4zfmEITcNoCpBKfEfg&#x2F;pla...</a>
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ficklepickleover 6 years ago
This looks really cool to this casual observer. It actually uses optical flow to interpolate frames. The slow-motion demos are very impressive.<p>Is this the first open source software that uses this approach? I found a masters&#x27; thesis project, but it doesn&#x27;t appear to be maintained.<p>Does anyone know if this is how slow-motion works on iphone cameras?
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avianover 6 years ago
Did anyone try this on hand-drawn animation? How does it look? I&#x27;m not optimistic, since usually processes made for live-motion don&#x27;t work that well, but going from e.g. 8 or 12 FPS to 24 FPS with no manual work would be just amazing.
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nonononononoover 6 years ago
Stumbled across it in 2017 and created this experiment, <a href="https:&#x2F;&#x2F;twitter.com&#x2F;dsvensson&#x2F;status&#x2F;1097072994478944256" rel="nofollow">https:&#x2F;&#x2F;twitter.com&#x2F;dsvensson&#x2F;status&#x2F;1097072994478944256</a>
ogouover 6 years ago
Butterflow quit working for me on 2 different machines after upgrading ffmpeg to 4.1. I&#x27;ve seen similar reports elsewhere. Did anybody get it working with a fresh install using all updated libraries?
psandersenover 6 years ago
Would be cool if this can be integrated with mpv, I tried SVP but integration is a bit awkward when you just want to chill.<p>That said SVP is nice for 30 fps youtube videos on slower connections or just videos without a high-quality 60hz source... even without svp videos look significantly nicer in mpv than in chrome on youtube.
muksover 6 years ago
How does the output compare to running a video with mpv and vapoursynth to increase the frame rate? e.g., this recipe: <a href="https:&#x2F;&#x2F;gist.github.com&#x2F;phiresky&#x2F;4bfcfbbd05b3c2ed8645" rel="nofollow">https:&#x2F;&#x2F;gist.github.com&#x2F;phiresky&#x2F;4bfcfbbd05b3c2ed8645</a>
supermwover 6 years ago
One good application of this tech is old movies with poor frame rates. The WW1 documentary <i>They Shall Not Grow Old</i> uses a technique like this.
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