|
|
| diablo23q |
| Posted: Jun 16 2011, 07:51 PM |
 |
|
Member
Group: Members
Posts: 16
Member No.: 31144
Joined: 3-May 11
|
Yes, I'm alive  Just too busy with exams.
Sorry, for now I can't give you any new information. In next 2 weeks I'll meet my supervisor and we'll talk about deshaker. So don't forget about this topic |
|
| ale5000 |
| Posted: Jun 20 2011, 01:25 AM |
|
|
Advanced Member
Group: Members
Posts: 1114
Member No.: 22180
Joined: 30-September 07
|
@diablo23q: Is it possible to add an english forum? (for all not-russian people)
--------------------
New VirtualDub forum
VirtualDub AIO (All-in-One installer for VirtualDub and plugins)
Codec Toolbox RS (A tool to read/change merit of codecs and many other things)
Input plugins for VirtualDub / ACM codecs / VFW codecs |
|
| evropej |
| Posted: Jun 21 2011, 02:41 PM |
|
|
Advanced Member
Group: Members
Posts: 514
Member No.: 26523
Joined: 28-November 09
|
| QUOTE (diablo23q @ Jun 16 2011, 07:51 PM) | Yes, I'm alive Just too busy with exams.
Sorry, for now I can't give you any new information. In next 2 weeks I'll meet my supervisor and we'll talk about deshaker. So don't forget about this topic |
I will keep bumping it up to remind everyone.
I am extremely interested in these products since they are some of the best filters out there.
Good luck with your exams
 |
|
| evropej |
| Posted: Jul 28 2011, 02:00 PM |
|
|
Advanced Member
Group: Members
Posts: 514
Member No.: 26523
Joined: 28-November 09
|
Bump!
Any updates ?
|
|
| diablo23q |
| Posted: Aug 6 2011, 01:02 AM |
|
|
Member
Group: Members
Posts: 16
Member No.: 31144
Joined: 3-May 11
|
Hi guys! Now I'm working on new deinterlacer, after it's release on compression.ru I'll start my work on deshaker. So I'm not dead |
|
| evropej |
| Posted: Aug 9 2011, 09:49 PM |
|
|
Advanced Member
Group: Members
Posts: 514
Member No.: 26523
Joined: 28-November 09
|
Nice seeing you back!
I see the site is getting a face lift. This is good news since I thought the project was dead for some time now.
|
|
| evropej |
| Posted: Aug 16 2011, 03:51 PM |
|
|
Advanced Member
Group: Members
Posts: 514
Member No.: 26523
Joined: 28-November 09
|
I would like to point out a feature request which I found is necessary for deshaking videos.
When the camera moves from point a to point b, it creates a different field of view.
Restricting this movement to the x axis for simplicity, creates a field of view which will either compress the left and dilate the right pixels or vice versa.
This type of distortion is amplified by cameras which don't have a wide angle lens.
A second feature would be to correct for motion blur.
I know Topaz Labs for Photopshop has a filter which corrects for blur created by motion.
Most cameras will blur the image when the camera moves due to shutter speeds or exposure time.
For example, sharpening can be applied to images when motion is detected.
I asked the developer of deshaker filter if he plans to implement the first feature and he stated not at this time.
Also, I mentioned possible coordinating with you on the effort but he stated again that external help on a student project is not permitted.
So I guess my last resort is to see if you would take this challenge on as part of your study.
These are the two deshaking features which are currently lacking and I would hope to see researched and mitigated.
|
|
| evropej |
| Posted: Feb 24 2012, 02:11 PM |
|
|
Advanced Member
Group: Members
Posts: 514
Member No.: 26523
Joined: 28-November 09
|
does this mean that you are working on this now?
|
|
| TlatoSMD |
| Posted: Jun 26 2012, 08:06 PM |
|
|
Newbie
Group: Members
Posts: 8
Member No.: 25552
Joined: 15-May 09
|
Bump!
Four filters still direly needed:
a.) A filter to remove that nasty, annoying colorful and monochrome RGB noise that's particularly strong in PAL and results from cross-talk from the luma to the chroma channel ("rainbow swirls") and vise versa ("dotcrawl"). It originates especially from poor isolation in analogue video cables. I know that MSU already has the algorithms for that as part of their Tuner TV Restore filter: http://compression.ru/video/tuner_tv_resto...e/index_en.html , but that's a commercial filter and all I need from that would be something to remove the crosstalk from chroma to luma and vice versa.
Tacosalad (aka The Fish?) wrote his Dotcrawl filter for this problem, but that's really for NTSC where the problem is much smaller, so it's not really useable for removing dotcrawl and rainbow swirls from PAL material (though it works as a nice general denoiser). Around 2005, I had an e-mail exchange with him and he said he had the basic layout for a PAL version figured out in his head, but he never got around to actually doing it. Other than that, I know that around 2000, a German university professor wrote a PAL-specific VDub filter for this, but his website is gone and the mirrored version I got from the large list at infocognition.com only crashes with modern versions of VDub without even previewing anything, probably because it was written more than 10 years ago. The second you hit "ok" to close the window with the used filters list, VDub crashes with it.
Any other noise filters ain't really specialized to remove crosstalk noise, so you gotta push the values really high to also catch at least a little of the crosstalk. Problem is, you're pretty much destroying the rest of the picture with that.
b.) An effective ghost removal filter.
c.) A filter particularly for removing the "ringing" around edges that occurs from MPEG or JPEG compressing. MSU Cartoon Restore does that, but it makes any live-action footage look bland, dull, and waxy. MSU Deblocking only catches the actual blocking artifacts, not the ringing.
d.) Finally, a fourth VDub filter I'd really like to see would be a VDub version of this: http://compression.ru/video/frame_rate_con...dex_en_msu.html |
|
