Slow motion - full frame interpolation

[xilog]

OK, so I have a 25 fps interlaced PAL source which I can happily deinterlace and create a 50fps progressive output. I can even use the Frame Rate menu to create a 25fps progressive slow motion clip. All good so far.

I now want to slow it down again by another factor of 2.

If I simply use the Frame Rate menu and adjust to 12.5fps the result is, obviously, jerky and I want a smooth result at at least 25fps progressive. I've seen just one tool (called Perfect Motion I think) that can do full-frame interpolation but it's a commercial tool.

Anyone know of any free tools that can do this or is there an alternative technique that I can use.

Cheers :)

[scharfis_brain]

you may make usage of avisynth and the plugin mvtools.dll.


this plugin allows you to alter the framerate of a video arbitrary without jerkyness and with much better quality than motionperfect.

[xilog]

Thank you, I'll check it out :)

[foxyshadis]

See this thread, Closest to Alchemist (http://forum.doom9.org/showthread.php?t=113256), for common ways of constructing the filterchain to perform better. No way to do it in virtualdub, only avisynth, but that's not such a big restriction.

[xilog]

Thanks folks. Quite a powerful tool, and it does exactly what I'm looking for. A little difficult to use for inexperienced script users like me but thankfully one of the examples on the download page did what I needed.

I have to say tyhat most of the stuff in that thread is over my head but it looks useful enough that I think I'll persevere my way through it.

Thanks again :)