Motion Optical Flow Work flow at DVinfo.net

Luke Oliver · December 9th, 2008, 02:27 PM

hello please can someone help cause this is driving me mad
im shooting 50i on sony hvr v1 , shutter speed says 50
My sequence preset is HDV 1080 50
capture preset is HDV Apple intermediate codec
and devise is sony hdv firewire
when u finish the optical flow retiming in motion and transport it back to final cut i get wavey ( almost like acid trip lines coming off it ) i tried this on a tester of me shaking my head fast, slowed it to 50% and it looks terrible
what am i doing wrong, please help, and when do u deinterlace, before or after ,motion

regards luke

does anyone have a workflow????

Simon Wyndham · December 11th, 2008, 05:22 PM

AFAIK you should be using progressive scan footage with Optical Flow, not interlaced. That would explain the wavy lines.

Although having said that I have never had much luck with Optical Flow at all. You really have to be careful about your original footage and how it is shot in order to use it.

December 9th, 2008, 02:27 PM	#1
Luke Oliver Major Player Join Date: Nov 2008 Location: Guernsey , Channel Islands Posts: 242	Motion Optical Flow Work flow hello please can someone help cause this is driving me mad im shooting 50i on sony hvr v1 , shutter speed says 50 My sequence preset is HDV 1080 50 capture preset is HDV Apple intermediate codec and devise is sony hdv firewire when u finish the optical flow retiming in motion and transport it back to final cut i get wavey ( almost like acid trip lines coming off it ) i tried this on a tester of me shaking my head fast, slowed it to 50% and it looks terrible what am i doing wrong, please help, and when do u deinterlace, before or after ,motion regards luke does anyone have a workflow????

December 11th, 2008, 05:22 PM	#2
Simon Wyndham Trustee Join Date: Dec 2003 Location: Malvern UK Posts: 1,931	AFAIK you should be using progressive scan footage with Optical Flow, not interlaced. That would explain the wavy lines. Although having said that I have never had much luck with Optical Flow at all. You really have to be careful about your original footage and how it is shot in order to use it.