De-interlacing at DVinfo.net

Go Back   DV Info Net > Special Interest Areas > Techniques for Independent Production

Techniques for Independent Production
The challenges of creating Digital Cinema and other narrative forms.


Reply
 
Thread Tools Search this Thread
Old July 28th, 2003, 03:47 AM   #1
Regular Crew
 
Join Date: Mar 2003
Location: Dublin, Ireland
Posts: 43
De-interlacing

I used a trick, which I saw in one of the tutorials on this site, which was to have two layers in After Effects - one with the bottom layer first and then one above at 50% with the top layer first. However, I have noticed that I'm getting a slight grid effect.

Is there a better way of de-interlacing or is this grid effect normal?

Thanks in advance,
Jason.
Jason Tammemagi is offline   Reply With Quote
Old July 28th, 2003, 12:20 PM   #2
Regular Crew
 
Join Date: Jan 2003
Location: Philly, PA
Posts: 40
This trick has been around for awhile (a gentleman on 2-pop stumbled across it). As for the grid effect, are you referring to jaggies, or stairstepping on your edges? If so, then you will still get some. Another method is to use the Adobe Photoshop deinterlacer plug in directly inside of After Effects, just move your plug-in from your Photoshop plug ins folder to your AE one.

A free deinterlacer for AE is available from Pete Warden @--

http://www.petewarden.com/

Try that one, and see if you like it. There are some other filters in there like Glow, Bloom, Dilate, and Smear that make it worth the download though.

Reelsmart Fieldskit is the best deinterlacer on the market. For a comprehensive article on deinterlacing from Barend Onneweer (he posts on here and at the Cow)--

http://www.creativecow.net/articles/...ing/index.html
Michael Robinson is offline   Reply With Quote
Old July 29th, 2003, 10:42 AM   #3
Regular Crew
 
Join Date: Jun 2003
Location: Arlington, TX
Posts: 64
I tried frameblending and while they destroyed all the jaggies, the picture was pretty blurred. I guess that's good if you want that effect.
Gerald Lee is offline   Reply With Quote
Old July 29th, 2003, 10:54 AM   #4
Regular Crew
 
Join Date: Mar 2003
Location: Dublin, Ireland
Posts: 43
Really? Thanks. Looking forward to see what my footage looks like when I get home.

I'm joking of course, did you mean to post in a different thread?

Jay.
Jason Tammemagi is offline   Reply With Quote
Old July 29th, 2003, 03:59 PM   #5
New Boot
 
Join Date: Jun 2003
Location: N.Y,N.Y.
Posts: 20
Try checking out this web site. It has instructions on Deinterlacing your 60i footage with Progressive Scan deinterlacing using freeware programs. It also presents the advantages and disadvantages of various deinterlacing methods.

Link: http://www.100fps.com/
James Farley is offline   Reply With Quote
Old July 30th, 2003, 02:09 PM   #6
Regular Crew
 
Join Date: Jun 2003
Location: Arlington, TX
Posts: 64
I'm getting that problem again. When I follow that motion clarity tutorial in aftereffects, I keep ending up with 12 fps. I set the posterize time to different framerates, but I always end up with 12 fps. Anything I'm doing wrong?
Gerald Lee is offline   Reply With Quote
Old July 31st, 2003, 02:20 AM   #7
Regular Crew
 
Join Date: Mar 2003
Location: Dublin, Ireland
Posts: 43
That grid effect I was getting actually looks like the same 'vertical lines' effect that is in a topic in the 'editing on pc' board so it's quite possible that it had nothing to do with the method of deinterlacing but actually the program.

I used After Effects, although the people in that topic were using Premiere. Not sure what to do about that...

Jay.
Jason Tammemagi is offline   Reply With Quote
Old July 31st, 2003, 03:09 AM   #8
Regular Crew
 
Join Date: Jun 2003
Location: Arlington, TX
Posts: 64
Okay I fixed my problem. I get those jaggies as well. I just tried the same method with Pete Warden's deinterlacer which smoothed out the jaggies but not completely. Any other free deinterlacers out there?
Gerald Lee is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Special Interest Areas > Techniques for Independent Production

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 02:30 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network