banding/stretching/ripples/distortion

netkoala wrote on 12/8/2003, 6:44 PM
In the interest to avoid banding/stretching/ripples/distortion when there is camera shake or fast movement - that seems to occur AFTER mixing up interlacing settings etc. I ask the following.

Firstly , I want to get to progressive field order and interlaced as the final product because this seems to work best for me.

But after capturing in PAL DV (field order lower line, no interlacing) (presumably NTSC upper order is equally applicable) and setting my project to progressive and interlaced, I am PRE-rendering to AVI ready to input into a new project which will have progressive and interlaced - ready for mpeg1 and meg2 and wmv and real etc.

Will the PRE-render settings of progressive and interlaced be lost because the DV PAL template has a setting to render as lower field order ?
Does the render override the project ?
Did it neutralise the setting or have I erred and it did both, thus increasing the chances that the prerender will later suffer from banding/stretching/ripples/distortion when there is camera shake ?

I say increase because it seems the absence of field order or interlacing after a couple of renders will produce a large amount of banding/stretching/ripples/distortion.

Would it be better to ensure the PAL DV render is similar to my project settings. Would it be best to override the default setting of lower field order ?




Comments

Spot|DSE wrote on 12/8/2003, 6:48 PM
There is no field order in Progressive Scan render/footage, so your post confuses me.
All PAL DV is interlaced, unless shot with a progressive scan camera. The interlacing is done at the camera, not at capture or editing stage.
Screwing around with the interlacing/progressive/interlacing back and forth won't take long to create a moire and a mess, no wonder you are having weirdness happening.
Do everything interlaced during editing.
If you are delivering for television, then you'll want it interlaced regardless. If you are delivering for web, computer display, you'll want progressive scanned. If you are delivering for DVD that will be played on both, you can do either, but progressive scanned DVD's will play interlaced unless the projector or television can handle progressive scanned media.
netkoala wrote on 12/8/2003, 7:24 PM
After capturing and right clicking the track and looking at properties, the default is lower field, for PAL. As is the default PAL DV template for new renders.

To answer my own question (maybe), I guess I ought to PRE render and place this AVI in a new project and right click the track to see if the PAL template settings overrid the project settings.

Think out aloud that is.

Let me clear the terminology up, field order = none and deinterlace = interpolate, is my progressive project setting. PAL seems to been captured as field order = lower and deinterlacing = none.

I was wondered if it was effective if the render template has a different default setting.

When you say render interlaced, it gets confusing because of my wording.

I guess it is safest to stick to field order = lower + deinterlaced = none for the prerender .....i.e only use deinterlacing = interpolated for final compression.