Trouble Deinterlacing w/ TMPGEnc

[monoxide77]

I'm capturing at 720X480 w/VDub and all is well until i try deinterlacing with TMPGEnc. i tried all possible settings with no luck. anybody have any ideas? this is my first time capturing at higher resolutions.

[tonyp12]

Commodore guy, the sad news is that it never can be really good.

Using a filter that do adaptive de-interlace would be best.

It tries to find only parts of the frame that have mouse teeth
and blend these two fields and leave the other parts as is
to keep higher detail.

How do you plan to play it back?, maybe you should keep it interlaced.

[BJ_M]

if you play it back only on your tv -- keeping it interlaced will accually make it play smoother ...

[mrtristan]

How is it "not working?"

[monoxide77]

How is it "not working?"

i've tried all the different deinterlacing filters and i still get interlacing noise. i even tried switching the field order.

[monoxide77]

i'm planning on getting the Canopus ADVC100. If i capture from a LD or VHS source, will the DV file be interlaced or does the Canopus unit deinterlace it?

[crahak]

Well, I deinterlace with v'dub as I'm capturing. That might work for you?

[BJ_M]

i'm planning on getting the Canopus ADVC100. If i capture from a LD or VHS source, will the DV file be interlaced or does the Canopus unit deinterlace it?

it will be interlaced

[bbb]

For Pure Interlaced Sources:
In VDub, try SmartDeinterlace filter, Blur filter, Sharpen filter at 64 in that order.

Explanation:
SmartDeinterlace will give you smooth motion by interpolating motion by analyzing the interlacing fields and constructing new frames. Use the default filter settings except use field only differencing and use cubic for interpolation.

Blur will eliminate any interlacing artifacts that get by SmartDeinterlace. However, it will blur the image.

Sharpen will sharpen the blurred image to normal clarity. AND the interlacing artifacts will NOT return!

Try it and see if you like the results.

[vhelp]

hi all.

monoxide77,
"troubles w/ interlace" that's the issue thus far.

No matter what you capture, assuming TV programs, you'll mostly run into
Interlace artifacts (lines) The problem is not exactly your de-interlace
technique, but rather what the tv show is airing, and HOW it is finally
sent to your capture card. Most tv sources are Interlaced in MANY ways.
Not all Interlace are exactly the same for everything.
Movies will be interlaced, but if not jimmied by the station, it will
usually follow the correct IVTC process. Other times, the same movie
(as shot at 24fps) will be jimmied w/ another form of IVTC (Interlace)
causing you (and me) trouble w/ Interlace showing up here or there, or
showing up in the form of studders etc.

A good Interlace will be when all frames are Interlaced. Then, you have
the choice of either keeping it that way during encoding, OR, performing
a de-Interlace. Either one will yield good results. If you are planning
on viewing on your PC monitor or PC and TV, then a de-Interlace is best,
else encoding w/ Interlace would be best instead.

TV shows are another issue of Interlace.
I've found some shows that would be Interlaced one day or next show, and
another day or next show, non-Interlaced. Example would be "The Cosby
Show" on Nick-at-Nite, or MTV's "True Life" or something.

It's best to be allert of what footage IS or IS NOT Interlaced before you
perform a capture w/ direct de-Interlace, else you could end up w/ issues
you can't figure out (unless you know what to look for) It will take a
trained eye (or at least a good lookout'er) to know this and prepare for
this. ie, KNOW YOUR SOURCE CONTENT BEFORE you capture w/ de-Interlace
on. If a TV source is non-Interlaced, and you capture it w/ a de-Interlace
setting, you could have unexpected issues.

One more thing I'd like to mention on this issue of Interlace.
Your capture card could also be the cause of Interlace artifacts. I've
just ben noticing this w/ my DC10+ It sometimes misses or mistakens or
processes a frame incorrectly during captures. I found this out when I
was doing some more capturing from my DV cam using my DC10+ card.
So, your capture card may also play a part as well. Just some more things
to worry about. Oh well.

monoxide77,
all capture devices are not Interlaced. Don't get that confused. Actually,
its the source materials that may or may not be Interlaced, and you capture
card will capture it as such. So, no, the advc-100 is not an Interlaced
device, rather, its the source.
Some clearer examples:
* Using your capture card, hooked up to your DV cam.
* you capture from your DV cam, the footage you took of your Ants'
visit.
This captured footage will be Interlaced. Not because of your capture
card device, but because the DV cam was designed to Interlace your
video as you take footage via your camera's Lens, and as such, when
you record (as your taked footage) to miniDV tapes, your final end
product will be Interlaced. When your capture card captured it, it captured
it with the Interlaced video frames.

DV makes a good candidate for either de-Interlaced encodes, or Interlaced
encodes. Both will come out nice. I've found Even (adaptive) does a
great job on mine. That's footage taken from camera Lens, NOT stuff
recorded to miniDV tapes from Cable TV or Satalite.

What would not make a good candidate for de-Intelacing is, example,
"Star Trek Enterprise" This show is 24fps. Weather you capture it direct
to your capture card via Satalite/Cable, or record it to miniDV tapes w/
your DV cam, when you finally send this source to your harddrive for
enditing and encoding, you would NOT want to de-Interlace it. Instead,
you would want to perform an IVTC on this clip. Because it was Telecined.
And, No, DV footage via cameras' Lens is not Telecined. DV camera's
do not Telecine (at least not home user models, unless you paid $15k) Anyways,

So, I say, you wouldn't want to de-Interlace on the fly via capture card
unless you already know what is a good candidate or not, and aim for
the right capture process.

If your source materials are not showing Interlacing lines in EVERY frame,
than it will take time to figure out which type of de-Interlacing method
will work for your given footage. But, just sticking to one de-Interlacing
method is not what I would recommend, and that is what I'm babling about
all this time here. Sorry.

I'll leave it at that for now.
-vhelp

[mrtristan]

Have you tried the sledge hammer method? A small 5 pound head usually is sufficient.

Might not slove your de-interlacing issues, but at least you'll derive some stress relief.

[tuco1979]

You could try the deinterlacing filters in avisynth. I use tomocomp and it works fine for me.