Marshallator

There does seem to be some mosquito noise, but that isn't really the problem that seems to appear on the projector screen, at least to my eye. What is a quantizer characteristic exactly?

http://files.filefront.com/Wedding+Ceremony+A+Camera2zip/;11075637;/fileinfo.html

Here is a video of the projector playing the video clips. The flickering artifacts are an accurate representation, not an artifact of the camera filming the screen. (Look at the officiants forehead, and the car's hood)

I will try a vertical blur next, and see what results that brings.

http://files.filefront.com/SD+Standardzip/;1104988

Here are downconverted files, both with and without sharpening for comparison.

I tried the pattern file you sent me Moth3r, there was no flickering.  Also, flicker only appears to happen around motion, whether it be subject motion or camera motion.

I'll try a few more bluring type tests, but I'm running out of ideas.

I have a progressive scan DVD player and a progressive projector (10' screen), so that is likely not the problem.

I have tried downconverting with both Lancoz03 and Bilinier, all have the same results. 

I did the downconvert without sharpening, tested it out, there is less flickering, but still a noticable amount.

Flickering takes place around both horizental and vertical lines.

When I deinterlace, the video is still 30 fps.  I'll post a video of how it looks after deinterlaced.  It seems a lot softer than what I would expect (i used blend fields).  Though since it is a 30p file, I'm not sure what the deinterlacer is doing.

I tried a gaussian blur on the video, it did help, but washed out a lot of detail.  I'll try the vertical blur later on.  I'll also look into other deinterlacing methods.

I'll continue to test various file settings, and I will post results from various tests as I do them. I'm going to be out of town for a week, but will do some more exploring when I get back.

I appreciate the help guys. :)

http://files.filefront.com/Officiantzip/;10881035;

Here is a selection of different clips, about four seconds each.  I'll post some longer ones later if you like.

Your explanation makes a lot of sense Jaiman, I think your probably right.  Though any idea as to why deinterlacing has an affect on that? 

So I guess I need to dive into some research on stair stepping. 

In some ways this makes me sad, because the sharpening in Vdub was allowing me to retain about 90%-95% of the quality of the HD image.  Regardless, its a relief to have a better idea of what I'm looking at, a thousand thanks to you! Because it is related to the sharpening on downconversion, would it help anything if I sharpen before downconvert or after downconvert ? I guess not, but can't blame me for hoping :)

Moth3r, the flickering appears around any patterns or straight lines, but it is not near so visible on a computer moniter.  I must agree, the HV30 takes a beastly picture for the price. :)

http://files.filefront.com/Receptionavi/;10866783;

Here is a link to the uncompressed file, I couldn't upload the whole clip because of file size, but this is a uncompressed conversion (very short to keep file size down).

Looking through the video frame by frame, no sign of interlacing, there are also very little signs of the flickering.  I find the lack of interlaced to point away from it being a frame rate confusion issue, but since its fine when I deinterlace, thats why I wonder if there is an frame rate issue.  When I encode to mpeg 2 in Hcenc, it becomes more obvious, but Hcenc isn't the problem, as I've tried other media encoders with the same problem.

No mpeg 2 plugin for Vdub, just exporting before sending into Hcenc.  I am using Lancoz3 or Precise Bicubic, I never had a preference, both seemed to yield the exact same result.  I tried different versions of Vdub, Vdubmod, and VdubMpeg.  Same story for all of them.

I captured through Firewire, through the program HDVsplit, though I don't think thats the problem.

I'll check out the Videohelp forum, see what I can find.

Thank you for all your help with this. :)

http://files.filefront.com/Hcenc+Encodezip/;108681

Here are the files, in three stages, HD File, Vdub Downconverted File, and Hcenc Encoded File.  I recommend burning the Hcenc file to DVD, the problem seems to show up better on a Tv than computer screen.

The filters didn't work, they actually caused the same problem, only twice as bad.

I'm about out of ideas.  I tried different versions of VDub, I tried different Mpeg encoders, I tried different codec settings. I belive the problem is in Vdub, because when I deinterlace in VDub, the flickering is gone.  Of course, so is half my resolution. 

I just tried resizing in After Effects, the same problem, thought to a lesser degree, probably because I didn't sharpen.  I don't understand this at all!  I will try different encoders again, but I had tried Adobe Media Encoder with a vdub file, and it still showed the problem the same as Hcenc.  I am extremely confused.  I'm too tired to continue tonight, but I'll post a video file tomorrow showing the problem.

I'm using the Canon HV30, which is true 30p from what I know.  It uses Mpeg-2 codec, specifically .m2t.   My last project did this as well, that was 30p also.  I did all my editing in premerie pro 2.0 then export an avi file with the lagarith lossless codec. I'm using Vdub 1.8

I'll try the filters you suggested, hopefully one will work.

I'll also post some screenshots later, thank you.

I recently finished a project, and have put it on DVD. Unfortunately,
there is flickering around any objects on screen that have a pattern to
it, as well as in other places to a lesser extent. 
 

 Workflow

 
 Export HDV lagrith lossless file,

 Downconvert and Sharpen in Vdub, 

 Encode in Hcenc,

 Burn in Encore.

 
 I have tracked the problem to VDub, I have a 30p file, but it
seems to split it into two fields. I have found no way to stop this
from happening, as I cannot seem to adjust field settings in VDub.

 

 I export through Vdub because of the great video quality, since Adobe Premiere does a poor job. Does anyone have any ideas?

I have done this method with 24p files as wall as 60i, and have not had any problems before, its almost as though vdub doesn't recognize 30p.