Quantcast Any way to fix horizontal dropout/tracking jitter? - digitalFAQ Forum
  #1  
02-13-2014, 05:46 PM
premiumcapture premiumcapture is offline
Free Member
 
Join Date: Dec 2013
Location: Boston, MA
Posts: 585
Thanked 69 Times in 63 Posts
I saw this thread:

http://forum.videohelp.com/threads/2...mple-included)

And while my issues are generally light tracking blur, I wondered if there were better filters out there.

Any thoughts?
Reply With Quote
Someday, 12:01 PM
admin's Avatar
Ads / Sponsors
 
Join Date: ∞
Posts: 42
Thanks: ∞
Thanked 42 Times in 42 Posts
  #2  
02-13-2014, 06:24 PM
lordsmurf's Avatar
lordsmurf lordsmurf is offline
Site Staff | Video
 
Join Date: Dec 2002
Posts: 11,131
Thanked 1,979 Times in 1,706 Posts
I just re-wrote an Avisynth filter for attacking jitter. And I have several script option. I've had very good success, sometimes eliminating ugly jitter 100%. I have two current projects, and have been working on them for a month now.

Post a sample clip.

- Did my advice help you? Then become a Premium Member and support this site.
- Find television shows, cartoons, DVDs and Blu-ray releases at the TVPast forums.
Reply With Quote
  #3  
02-13-2014, 06:56 PM
premiumcapture premiumcapture is offline
Free Member
 
Join Date: Dec 2013
Location: Boston, MA
Posts: 585
Thanked 69 Times in 63 Posts
Attached as mpeg to avoid the lossless file size


Attached Files
File Type: mpg Test.mpg (5.49 MB, 64 downloads)
Reply With Quote
  #4  
02-13-2014, 10:08 PM
lordsmurf's Avatar
lordsmurf lordsmurf is offline
Site Staff | Video
 
Join Date: Dec 2002
Posts: 11,131
Thanked 1,979 Times in 1,706 Posts
There's not any visual jitter in that clip.

There's some technical jitter -- timebase errors -- but there's really nothing that can be done about that in software. This need to be corrected in hardware, meaning a TBC is required. Not an external one, but one in an S-VHS/D-VHS VCR. Certain DVD recorder TBC-like sync filters also work.

The frame roll (1 frame) must be replaced manually with an adjacent frame.

The tracking error cannot be eliminated. It can be reduced to varying degree with filters, but it's also best replaced by nearby frames.

What's mostly left are some dropouts, and those can be removed with a median filter in VirtualDub.

The better option is to try another deck for capture. It's why we have at least a dozen here, and each ones has its strengths and quirks. And several of them track tapes differently. Unless the tape is just entirely misaligned (the fault of the recording deck), we can usually track it eventually.

- Did my advice help you? Then become a Premium Member and support this site.
- Find television shows, cartoons, DVDs and Blu-ray releases at the TVPast forums.
Reply With Quote
The following users thank lordsmurf for this useful post: premiumcapture (02-14-2014)
Reply




Similar Threads
Thread Thread Starter Forum Replies Last Post
Best current scanning drives for BD-R and DVD-R/+R, including jitter? lordsmurf Blank Media 0 10-17-2013 10:30 AM
Vertical or horizontal for storing an external hard drive & best enclosures ? Sossity Computers 1 12-09-2010 07:26 PM
Jittery horizontal line in middle of screen Kereellis Restore, Filter, Improve Quality 6 06-25-2010 05:32 PM
VHS tape dropout fixes? TBC, software? via Email or PM Restore, Filter, Improve Quality 3 03-10-2010 11:03 AM
Examples of Jitter Removed from videos lordsmurf Restore, Filter, Improve Quality 6 11-19-2009 05:48 AM

Thread Tools



 
All times are GMT -5. The time now is 12:52 AM