chromatic aberration and green screen ghosting at

Go Back   DV Info Net > The Tools of DV and HD Production > Open DV Discussion

Open DV Discussion
For topics which don't fit into any of the other categories.

Thread Tools Search this Thread
Old April 22nd, 2009, 01:20 PM   #1
New Boot
Join Date: Jul 2006
Location: Milwaukee Wisconsin USA
Posts: 23
chromatic aberration and green screen ghosting

Has anyone noticed what seems like some sort of pixel shifting going on when filming a subject in front of a green screen. It appears as a dark line on the left side of the subject and a lighter line on the right. It is only visible on solid surfaces and more noticeable on darker colors. It shows up more vividly in HD but somewhat in SD. This shows up on the original footage before the keying is applied. The keying software seems to see this as part of the subject and leaves it in. This has nothing to do with bad lighting or spill from the green screen. I am wondering if this could be caused by chromatic aberration. These lines are not so big that they cannot be removed using clean up controls but to produce a perfect key I do not like doing this. These lines should not be there to begin with. I would appreciate any input on this.
Thanks Mike
Michael Frkovich is offline   Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

Omega Broadcast
(512) 251-7778
Austin, TX

(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

(800) 238-8480
Glendale, CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > The Tools of DV and HD Production > Open DV Discussion

Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -6. The time now is 11:59 PM.

DV Info Net -- Real Names, Real People, Real Info!
1998-2015 The Digital Video Information Network