Speeding up over cranked footage

[Dave Beard]

I'm hoping that someone has come across this issue at some point. I haven't had much look searching the forums.

I have a bunch of footage we shot of some really beautiful footage food table top work, and a good amount of it was shot at 120fps, 240fps, and even fps on our epic in a 23.976 time base. Once I transcoded the files into 720p 59.94 footage, and performed an offline edit, I decided that some of the footage was just too slow for the script, so I would like to speed it up. Upon initial speed changes in FCP, the footage appears to be very shuddery, especially any dolly moves where I'm going side to side. Is there anything I can do in after effects, or possibly some other third party plug in, that will allow me to perform speed changes, and still have smooth looking footage? Any help would be greatly appreciated.

Thanks

 

[Kyle Gentz]

Select the clip, Command + J, uncheck frame blending. (in FCP7)

 

[Dave Beard]

I was playing with that option, and that tends to make my footage look even more worse. I'll post up some sample links in a moment so you can see what i'm talking.

 

[Doug Beatty]

Try enabling frame blending (pixel motion) in After Effects. If that doesn't work well enough, then try Twixtor

 

[Dave Beard]

So here is a clip that was shot 48fps, 1/120 shutter. the first half of the clip playing at normal speed, and the 2nd half is playing at 200% speed, hoping to get something that looks like 24fps. But the 2nd clip has some really awful looking strobing edges on the apples on the sped up stuff.

And here is a clip that was shot at 48fps, 1/96 shutter. Again, first half is normal, and the 2nd half is 200% speed, hoping to get something that looks like 24fps. Again, some pretty significant strobing. Any thoughts?

Thanks

 

[Michael Mayda]

NukeX is good with retiming footage...

 

[Dave Beard]

NukeX is good with retiming footage...

Thanks Michael, but I don't have a cool 8g laying around. I'll keep that in mind for the future. Sounds like a pretty gnarly program.

 

[Marty Taylor]

What has worked for me to reduce strobing effects is Reel Smart Motion Blur. Relatively inexpensive for After Effects. I've only used the Flame version though.