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  • Apple Motion

    Optical Flow

    Posted by Salah Elfalahi on March 19, 2010 at 12:19 pm

    Hi All
    I shot one clip (test shot for later project) using my EX3 (720p50). in final cut 7 i sent one clip to motion 4 just to slow it down using Optical Flow (30%). the result wasn’t pleasant as i got some kind like a goest or mirage behind the moving subject. I trashed the preferences, but that didn’t change anything.in the clip: I’m moving my daughter up and down while camera locked down on tripod. the clip is 14sec long and took 3 sec to finish processing.
    Thanks

    Salah

    Alexander Kallas replied 16 years, 1 month ago 4 Members · 4 Replies
  • 4 Replies

  • Zak Peric

    March 19, 2010 at 1:46 pm

    Hi Back,

    I do not think you did anything wrong, it is just that some footage does this when a optical flow is applied. You just have to tweak settings to try to get that corrected. Best of luck…

  • Arnie Schlissel

    March 19, 2010 at 2:14 pm

    I think that’s kind of typical for long-gop formats.

    Arnie
    Post production is not an afterthought!
    https://www.arniepix.com/

  • Salah Elfalahi

    March 19, 2010 at 6:10 pm

    Thanks for the replies
    I’ve had optical flow added in few deferent formats ( DV,HDV,HD) and in deferent ways (subject moving fast or slow, camera fixed or moving…) ..I always have the same result, the goest like behind the moving subject !!
    Thanks

    Salah

  • Alexander Kallas

    March 21, 2010 at 10:03 am

    Convert to ProRes first.

    Cheers
    Alexander

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