TO John_Cline and SonicEPM Film "Judder" removal

JJKizak wrote on 9/27/2002, 8:21 AM

I recently purchased Dynapel's Steady software to remove shaky camera motion
from older film clips converted to Betacam SP. The clips contained judder
in addition to being shaky and I was really surprised at how this software
reduced the judder on the tapes. This is after rendering and writing to
DVD-R discs (the whole process). Some of the worst judder was 95% eliminated
(estimate). This is not camera shake but most definetly judder. Although it is
slow, busting up the clips into the areas suspected of high judder (fast pans
or fast moving objects) would speed things up a lot. This software also
does a great job on camera shake with the zoom and rotate options disabled.
For $68.00, it's a steal.

James J. Kizak

Comments

rextilleon wrote on 9/27/2002, 10:53 AM

I agree that Dynapel is great---but what is JUDDER?

JJKizak wrote on 9/27/2002, 12:08 PM

Rextilleon:
John_cline explains it as films (24fps) not gathering enough information
during fast pans or fast moving objects. When it is converted to tape the
24fps is converted to 59.64 fps video with 3 x 2 x2 x3 pulldown. (I think)
as the mpeg2 codec tries to follow this it goes nuts and you get a whole
lot of jumping video only in certain areas of fast pans. It only occurs
when you are editing film converted to tape then capture. Digital video
cameras have no problem with this "judder". John has a very lenghty
discussion on this about 60 to 80 entries back from this entry in the
forum under "Film to Betacam SP to MiniDV to Vegas."

James J. Kizak

John_Cline wrote on 9/27/2002, 12:11 PM

James,

Thanks for the heads-up on the Dynapel software. I have their MotionPerfect software, but I was unaware of SteadyHand. Their demo video is really impressive.

John