Anti-aliasing problem .. Jagged edge

yachts wrote on 5/16/2004, 7:52 AM
After having made more than fifty, 4 minute movies (using both VF and now Screenblast MS), I am experiencing something new and unusal.
Rendered movies in .avi & .meg2 have a jagged edge when panning the shot. It is NOT occurring at a lesser quality production such as .meg1 and .wmv. If the shot is still and not panning, the picture is fine.

I need to add, that this is the first production using my new camera, a Sony DSR PD150, where before I had been using an older Sony Handicam. I can't help thinking this is more about a camera setting somehow. Perhaps something to do with "anti-aliasing", but I can't figure out what the solution is.

Any ideas on this?

Larry

Comments

jga324 wrote on 5/16/2004, 7:57 AM
It might be the stabilizing system on the new camera - it wants to keep taking the same picture (so to speak.)
Just a thought.
dand9959 wrote on 5/16/2004, 9:59 AM
Is the nature of your video different? Have you started filming high-action footage where before it was less so?

If high-motion/action, use the "sports" setting on your camera. But this introduces other possible problems...namely that the effects of any movement of a handheld camera may be magnified, thus necessitating the need for a tripod.

Of course, none of this may apply!
yachts wrote on 5/17/2004, 4:51 AM
The nature of the video is the same. Slow panning of a room. No people involved. It happens with or without tripod.

Although I am still learning the camera features, I don't believe there is a "sports" setting, that would be found on a still camera like the Canon Digital Rebel. It does have a "Steady Shot" feature that compensates for camera shaking. Perhaps this might be the problem? Strange that the problem is NOT showing up in preview or until after rendering?
yachts wrote on 5/17/2004, 4:52 AM
I will check into this idea, thank you.

However, the problem doesn't appear in preview mode, only after rendering?
IanG wrote on 5/17/2004, 7:50 AM
Could you try creating a new project, using the failing project's settings and some of the footage from your old camera? That would be an indication of whether the problem's MS or the camera. Do you know anyone with the same camera so you could try some footage from theirs?

Ian G.
Ralph413 wrote on 5/17/2004, 6:30 PM
I use the same camers and had the same problem, mine was from dropped frames when downloading the video into the computer. When I dumped some of my files into another hard drive and freed up the drive I defraged and now it's back to normal.