DV Film not ideal for action shots? at DVinfo.net

Greg Jacobson · February 10th, 2005, 04:32 AM

If DV film is a "smart deinterlacer" I understand that it only deinterlaces moving areas of the picture.

So if the shot you want to deinterlace is of a person in motion then it would make your subject (the person) look soft and the background details would remain sharp. Correct?

If yes then I think it would be better to deinterlace the entire scene unless you want the person to be soft and background to stand out.

Does this make any sense?

Also, DV Film seems to wash out the colors on my footage but when I deinterlace in Vegas I don't have this problem. Anyone else notice this?

Joshua Provost · February 10th, 2005, 11:57 AM

It's a compromise situation, but if you think about it, if the camera is still and the subject is in motion, there will be some motion blur anyway. Perfect detail is only really necessary when you get a good long look at something. End result, you may not notice the loss of detail in the moving object. In fact, that premise of the software is counting on that fact.

Haven't notice any color aberations.

Graeme Nattress · February 10th, 2005, 01:05 PM

It doesn't matter because the eye cannot perceive the loss of vertical detail in the motion areas anyway - indeed, that's how interlace itself gets away with working as well as it does. You can only easily perceive detail in still areas which DV Film Maker will preserve. I write Film Effects for FCP which is a similar product to Dv Film Maker, so I'm well aware of smart deinterlacing as I use similar techniques.

Graeme

February 10th, 2005, 04:32 AM	#1
Greg Jacobson Regular Crew Join Date: Feb 2005 Location: New York Posts: 141	DV Film not ideal for action shots? If DV film is a "smart deinterlacer" I understand that it only deinterlaces moving areas of the picture. So if the shot you want to deinterlace is of a person in motion then it would make your subject (the person) look soft and the background details would remain sharp. Correct? If yes then I think it would be better to deinterlace the entire scene unless you want the person to be soft and background to stand out. Does this make any sense? Also, DV Film seems to wash out the colors on my footage but when I deinterlace in Vegas I don't have this problem. Anyone else notice this?

February 10th, 2005, 01:05 PM	#3
Graeme Nattress RED Problem Solver Join Date: Sep 2003 Location: Ottawa, Canada Posts: 1,365	It doesn't matter because the eye cannot perceive the loss of vertical detail in the motion areas anyway - indeed, that's how interlace itself gets away with working as well as it does. You can only easily perceive detail in still areas which DV Film Maker will preserve. I write Film Effects for FCP which is a similar product to Dv Film Maker, so I'm well aware of smart deinterlacing as I use similar techniques. Graeme __________________ www.nattress.com - filters for FCP

February 10th, 2005, 11:57 AM	#2
Joshua Provost Major Player Join Date: Sep 2004 Location: Phoenix, AZ Posts: 493	It's a compromise situation, but if you think about it, if the camera is still and the subject is in motion, there will be some motion blur anyway. Perfect detail is only really necessary when you get a good long look at something. End result, you may not notice the loss of detail in the moving object. In fact, that premise of the software is counting on that fact. Haven't notice any color aberations.