Was this a successfull deinterlacing story? Can you give me your opinion?

[Fotis_Greece]

Hi to all. The other day I edited a small video captured from my mini DV camcorder. I did some editing and rendered it to mpeg2 for dvd authoring. Since the captured file was DV lower field I rendered as lower field again.
Well when I watched the dvd on my good Sony 25" flat TV the result was awful In the video you could clearly see the bad image caused by interlacing. When there was some motion it was even more disappointing.

So I did this. I deinterlaced the video ( I use Vegas as NLE), saved it as Pal DV .avi progressive file, and then rendered it with Main Concept standalone encoder as Bottom Field interlaced. The result when viewed on TV was superb.

So I want to ask you all a simple question. Was this a correct procedure? I mean TV is supposed to get interlaced feeding. Can we just deinterlace video and get rid of all the artifacts and then render as interlaced to trick the TV that it is getting normal interlaced material?
Thanks in advance

[Wilbert]

Was this a correct procedure?
No, in that case you loose quality. Did you try switching the field order?

[mf]

Define "bad image". If you got combing, it's likely you've resized your interlaced stuff in a progressive manner, somewhere along the way.

[Fotis_Greece]

Originally posted by Wilbert
No, in that case you loose quality. Did you try switching the field order?

No I didn't try changing the field order. I went directly to progressive.
In what way do you think I loose quality? Is it because I render to avi and then render again to mpeg2, or because I try progressive from a interlaced dv video?

When I refer to bad image I mean this combing effect. In one instance in the video where it's me walking, you can see my legs really splitted into two parts. I think all these were caused by the fact that I used track motion and actually moved and enlarged the video track.

So how comes that the TV plays the dvd in very good detail? Do this still mean that I can always deinterlace my home mini dv videos and make progressive DVDs?

[bb]

First of all if you deinterlace you'll loose quality. You may get artefacts in movements, and the resulution will suffer. If you decide to deinterlace, you should encode as progressive, zigzag scan.

For DVDs the better way is to leave it interlaced. You have to take care of the field order, though. If your encoder produces top field first only (e.g. CCE), then you must change the field order. In CCE you can select "Upper field first", or use AviSynth instead with a "DoubleWeave.SelectOdd()" command (I prefer the latter).

bb