are there any 3d comb filters available for Premiere Pro?

[AnthonyR]

Archived from groups: rec.video.desktop (More info?)

Hello Everyone,
I did a search but couldn't find anything related to software 3d comb
filtering for adobe's premiere pro software.
Is there such a filter or plug in available?
And if not, how can old video that has been captured as DV-AVI be processed
to remove the noise
and clean it before encoding to mpeg2 which is the recommended procedure.
I know a cleaner video file will encode better.

I have read many posts recommending capturing with VirtualDub and using
their vhs filter.
But I've never used Virtual Dub and was hoping to be able to do this
directly in Premiere.

Is their a comparable vhs filter available for Premiere, even as a separate
pay item?

I know my Philips standalone does this filtering in real-time while
converting to mpeg2 and
I am very impressed with the image improvement of my old vhs tapes to dvd
using it.
However I want to be able to edit in DV format, then filter and then encode.
If I use the standalone, I am left with mpeg2 files that can't be edited in
Premiere.

Also Virtual Dub has a flicker removal filter that can correct the
flickering caused by videotaping old
8mm projector film. I know premiere has a flicker removal filter but it more
for removing interlace flicker,
not as powerful from what I read. Is there anything like this available for
premiere also?

Any help in this area would greatly be appreciated.

Thanks in advance,
AnthonyR

 

[Guest]

Archived from groups: rec.video.desktop (More info?)

In article <ewmbd.78587$Ot3.28844@twister.nyc.rr.com>,
"AnthonyR" <toomuchspam@tolisthere.com> writes:
> Hello Everyone,
> I did a search but couldn't find anything related to software 3d comb
> filtering for adobe's premiere pro software.
> Is there such a filter or plug in available?
> And if not, how can old video that has been captured as DV-AVI be processed
> to remove the noise
> and clean it before encoding to mpeg2 which is the recommended procedure.
> I know a cleaner video file will encode better.
>
Partial answer:
The precise phase/timing relationships that make a true comb
filter work properly (both 3d and 2d) are lost during DV25 (and
even DV50) encoding. However, there is SOME CHANCE that a program
could undo some of the damage done by the normal 2d comb, but
the 2d comb mechanism alone has already diminished the diagonal
resolution and the chroma/luma interference has already been
done by the 2d comb (just before the DV25 encode.) Then,
the DV25 encoding is rather 'approximate', where a subsequent
re-filtering comb (for some kind of re-filtering) would have
lost the phasing cues. (Part of that 'approximation' causes
the manifestation of the well known mosquito noise and
stairstepping.)

Again, it is probably quite possible for a program to both
ad-hoc and mathematically remove some of the 2d comb filter
artifacts, but it won't be nearly as good as doing a proper
3D comb before encoding. The use of a 3D comb actually improves
the behavior of the original DV25 encoding, but also helps
the future MPEG2 encoding also.

I cannot answer whether or not such a filter exists, but I'd
be surprised if it didn't. Don't give up hope, and keep on
looking.

John

 

[AnthonyR]

Archived from groups: rec.video.desktop (More info?)

"John S. Dyson" <toor@iquest.net> wrote in message
news:ckrn75$1nbq$1@news.iquest.net...
> Partial answer:
>
> Again, it is probably quite possible for a program to both
> ad-hoc and mathematically remove some of the 2d comb filter
> artifacts, but it won't be nearly as good as doing a proper
> 3D comb before encoding. The use of a 3D comb actually improves
> the behavior of the original DV25 encoding, but also helps
> the future MPEG2 encoding also.
>
> I cannot answer whether or not such a filter exists, but I'd
> be surprised if it didn't. Don't give up hope, and keep on
> looking.
>
> John
>

John,
Then I take it a hardware 3d comb filter like the ADVC-300 would be better
to use since it would work on the vhs analog input signal before it is
encoded to DV25. Or also to capture the analog uncompressed or with huffyyuv
and then filter using virtual dub before encoding to dv25 for editing.
Either of these two should yield results that will enable better mpeg2
encoding in the end, is that correct?

Thanks for your help, I am testing some old analog tapes converted using a
cheap analog capture card and virtual dub with filters and then edited in dv
and encoded to mpeg2 now to see the results. If they are not as satisfactory
as I hope, then I might spend the extra $$ for a ADVC-300 and see if that
yields better video. I am hoping to be able to do it with my existing
hardware and just software filters to save some bucks. But the hardware 3d
comb filter might just be faster in the long run for the amount of old vhs
and hi8 that I have to do.

Thanks,
AnthonyR.

 

[AnthonyR]

Archived from groups: rec.video.desktop (More info?)

I just found this info on a chip with all this digital noise reduction built
into the core.
I can't wait for the next generation products to use such chips!
http://www.zoran.com/products/literature/ipcores/NRED1.pdf

didn't zoran make a real early cpu kit or computer? the z-80 or something?
or was that someone else? sounds familiar.

AnthonyR.

"John S. Dyson" <toor@iquest.net> wrote in message
news:ckrn75$1nbq$1@news.iquest.net...
> In article <ewmbd.78587$Ot3.28844@twister.nyc.rr.com>,
> "AnthonyR" <toomuchspam@tolisthere.com> writes:
>> Hello Everyone,
>> I did a search but couldn't find anything related to software 3d comb
>> filtering for adobe's premiere pro software.
>> Is there such a filter or plug in available?
>> And if not, how can old video that has been captured as DV-AVI be
>> processed
>> to remove the noise
>> and clean it before encoding to mpeg2 which is the recommended procedure.
>> I know a cleaner video file will encode better.
>>
> Partial answer:
> The precise phase/timing relationships that make a true comb
> filter work properly (both 3d and 2d) are lost during DV25 (and
> even DV50) encoding. However, there is SOME CHANCE that a program
> could undo some of the damage done by the normal 2d comb, but
> the 2d comb mechanism alone has already diminished the diagonal
> resolution and the chroma/luma interference has already been
> done by the 2d comb (just before the DV25 encode.) Then,
> the DV25 encoding is rather 'approximate', where a subsequent
> re-filtering comb (for some kind of re-filtering) would have
> lost the phasing cues. (Part of that 'approximation' causes
> the manifestation of the well known mosquito noise and
> stairstepping.)
>
> Again, it is probably quite possible for a program to both
> ad-hoc and mathematically remove some of the 2d comb filter
> artifacts, but it won't be nearly as good as doing a proper
> 3D comb before encoding. The use of a 3D comb actually improves
> the behavior of the original DV25 encoding, but also helps
> the future MPEG2 encoding also.
>
> I cannot answer whether or not such a filter exists, but I'd
> be surprised if it didn't. Don't give up hope, and keep on
> looking.
>
> John
>