Jagged edges when viewed on the computer or a television?

John

The jagged edges occur when rendering both in DV and MPEG2 formats. The original was captured using a Hi8 Video Camera. When I work with footage captured using my DV Cameras I have no problems with jagged artifacts in my footage. I am sure someone else has experienced this problem. I need to know how to fix it. Anything guys...?

Both... Seems to only occur when I am working with Hi8 original source material recorded using a Hi8 camcorder...

and is the Hi8 captured through a D8 camera or deck. Or is it captured through another means?
Is the Aspect Ratio altered between the playback and the target?
Is there any attempt to simulate progressive/film look going on within the edit?

Is the jagged edge like teeth at the edge of the picture and on the edges of the moving items/pan? Or is it like old fashioned TV with low res? (that could be caused by acquiring with less than a D1 profile on an analogue capture card)?

Apollo25:

You might have your field dominance reversed. Your footage is certainly interlaced. In the general case, if it's 720x486 or 640x486, it's going to be upper-field first footage. If it's 720x480 or 640x480, then one would expect the footage to be lower-field first. Are these jagged edges only showing up in areas of your footage with horizontal motion?

If so, try this:

In the media pool, your source footage should say something to the effect of "lower-field first" or "upper-field first," or "progressive." If it's progressive, try upper or lower field first. If it's upper or lower field first, switch it.


Of course, you could just mean the edges of some rotated pan-crop window, in which case I'm giving you bad info.

First, thanks for responding. I tried switching the field order as you mentioned and it did not eliminate the problem. Could the fact that the source footage came from a Hi8 Camcorder be part of the problem...? I have only encountered this problem twice. Both times was while working with Hi8 footage from a non DV Camera...

The jagged edges are visible along most vertical edges in the clip while panning from side to side. It even occurs while zooming in and out occasionally.

Once again... it only occurs while editing Hi8 footage captured from a Hi8 camcorder. The Hi8 footage had no time code until captured. Could this be contributing to the problem???

As RBartlett suggested I think, the prob might be related to the way you're captureing &/or pre processing the hi-8 footage. Could be hardware, codec, & so on, so any info there might help, as would info on any processing the video might have gone through before render, if there were dropped frams during capture and so on.

As an example that can give prob., captureing to HUFFYUV, processing the video in at least some versions of V/Dub, then saving back to HUFfYUV to be opened in Vegas. You might also see prob if you attempted ivt or similar, or perhaps tried resize & deinterlace in V/Dub without the interlaced box checked on the resize dialog.

I have a similar problem with 24p footage captured from a DVX 100 and rendered in Vegas using 2:3 pull down. When I view the captured or rendered files in Windows Media Player on my computer, I get a lot of interlace tearing where there is motion. (It looks fine when clips are played on my television - no problem.) Any ideas? Anyone have similar problems with DVX footage?

I experienced no dropped frames during capture. I would, however, get a pixalated, distorted sound and slow video during capture. I subsequent recapture fixed it though.....

Is your tearing pronounced or subtle and sporatic..? Again, my problems only occur when using footage captured from a Hi8 Camcorder. My digital footage edits and renders fine.....

Hi there,

I had the same problems once. It happend only with panned shots (in the recording) as well as with cropped parts. Maybe the answers in my old post can help you?
http://www.sonicfoundry.com/forums/ShowMessage.asp?ForumID=4&MessageID=163382

good luck