i'm losing my sanity..the palm leaves keep flickering..HELP

melbatoast wrote on 12/27/2004, 6:51 PM

Okay.

it's obvious i'm going nuts but this is keeping me up at night and you guys are my last chance.

my vacation movie is going badly. it was recorded on a sony dv camera (consumer trv33) ....i firewired the footage onto the PC as a AVI dv codec lower field NTSC.

I did my editing in Vegas and saved it as an mpeg2 with the following properties:

video 720x480; 29.970 fps, alpha=None, field order-=lower field fiirst, Mpeg 2, pixel aspect ntsc dv .9010

but when I view it on TV (burned as an mpeg2 on a dvd-rw) i get flickering pulsing on horizontals and verticals of tables, palm leaves and other generally straight things.

i've attempted blurring filters (vertical only AND horiz only AND both horiz/vert) and it still flickers those damn palm leaves. I triedchanging the field order where i outputed the project to a higher field and even progressive and still it flickers. i even tried the global deflicker/anti flicker option and alas she still FLICKERS. those palm leaves are the worst which is why, in desperation, i even placed on the internet for any kindhearted vide expert to download and see what i'm talking about.

it's big...11meg and 12 secs long. but you'll see what i mean.

http://www3.telus.net/revision54/b/testcolor2.mpg

Unfortunatelly i've deleted the original 50 gig or so of the raw footage so i'm not too enthusiastic about a suggested solution which involves re-capturing everything....

IS THERE ANYTHING I CAN DO? my wife thinks i'm watching porn due to al lthe time i spend on this project...so can anyone help out in de-flickering the plam leaves...

a gracious thanks

Melba

Comments

FuTz wrote on 12/29/2004, 1:13 AM

My guess would be that it's from the cam itself.
Like when somebody puts on a stripped necktie on TV. "357" effect ? I think it's the name some give to it.
IF that is the case, there's nothing bad from all the capturing/editing process. It's the format: video.

Anybody?
(BTW, it took only a few seconds to load on my standard hi-speed internet connection...)

farss wrote on 12/29/2004, 1:46 AM

This is probably very different to my current problem as it involves a video source not stills. Yes it sounds very much like the old moire problem. Point even a very expensive broadcast camera at the wrong thing and you can end up with what looks like an acid trip gone very bad.
I authored a DVD a few weeks ago where just that happened, whole stage full of schoolgirls wearing uniforms with shiny herringbone patterns in the fabric, wow, as the camera zooms in, what an effect. This was shot 16:9 with a DSR 570 with a broadcast lens so don't blame the camera, poke the video gods the wrong way and no matter what your kit things can get very nasty.
Bob.

Orcatek wrote on 12/29/2004, 7:06 AM

Looks like moire to me - so you really can't get rid.

albatross1 wrote on 12/29/2004, 10:00 AM

Here is something you could try. Do this in Vegas.

Copy the clip with the plam leaves. Now insert a new video track above the origiinal track,

Paste the copy of the clip into the track above and line up the two tracks so that they are in exactly the same place.

Next put brightness and contract on the lower clip. Run brightness up and the contrast up so that you get a rubber stamp look .

The next thing you want to do is put a very slight gausien blur on the lower clip. .005 horizontal and .005 vertical.

Now on the upper track.. Slide the little slider bar on the left blending the upper and lower vide tracks.

This can soften the image with out bluring the image too much. You may need to play with it.

Also, I couldn't tell from what you were saying, but you indicated that you were playing an MPEG of a DVD-RW. You did not say if it was the DVD style MPEG or if it was some other type of MPEG.

Also, you did not say how you encoded the video out of Vegas. It's possible that you are haveing problems with progressive vs interlace.

Alby

melbatoast wrote on 12/30/2004, 8:12 AM

thanks for the replies folks!!

Also, I couldn't tell from what you were saying, but you indicated that you were playing an MPEG of a DVD-RW. You did not say if it was the DVD style MPEG or if it was some other type of MPEG.

Also, you did not say how you encoded the video out of Vegas. It's possible that you are haveing problems with progressive vs interlace.

-i encoded it interlaced and as mpeg2..not dvd style...custom mpeg2 29.97 lower field 8000 cbr

what i meant was after encoding i copied it onto a dvdrw to test and threw it into my dvd player (philips dv642..awesome machine plays divx as well)...

NeilPorter wrote on 12/31/2004, 4:53 PM

I have had similar problems. In my case, some random clips had the interlacing wrongly set due to a camera fault. Have a look at the Properties of each clip (tedious, I know) and ensure that you have Lower Field First set, and not None (Progressive) or Upper Field First.

Also, I have recently put up a post called "Wavy Verticals". Search and read, as this might help you.

Regards,
Neil Porter