Possible interlace problem

Videot wrote on 6/15/2004, 4:39 PM

I have some old footage that was originally taken on an old VHS camera made my Miitsubishi whose stabilization process leaves your footage surrounded by a large black border. It looked as if it would be easy to eliminate the border just my using track motion to zoom in a little so that the picture fills the screen. When I tried rendering a part as a test to another AvI file the results were hopeless. As it rendered I got lots of horzontal lines running through the picture which are much more noticable at the edges. I think that this is an interlace problem. Both the captured & rendered video have the seetings set the same way to lower field first. Any ideas as to what the problem is?

Comments

Spot|DSE wrote on 6/15/2004, 10:15 PM

Use Pan/Crop to do this, not track motion, and you'll come out great. You can use track motion too, but you run the risk of exactly this; fields not lining up.Lines at the edges are also part of DV, you need to crop that junk out using pan/crop.

farss wrote on 6/16/2004, 1:05 AM

Even with pan/crop you can get some horrible artifacts when you zoom in, had this happen a few times. Easy to fix, turn on Reduce Interlace Flicker in Media Properties. I have not the vaguest clue why this works but it does.

TheHappyFriar wrote on 6/16/2004, 5:53 AM

When I've had all else fail on analog footage (mostly VHS), I convert the file to progressive. It's really difficult to see a difference between the interlace & the half res progressive, but the progressive ALWAYS works. :)