Teranex

Do you have questions about DaVinci Resolve Color Correction, desktop video and editing software?
  • Author
  • Message
Offline

lfstudios10

  • Posts: 2
  • Joined: Sat Nov 24, 2012 2:39 am

Teranex

PostSat Nov 24, 2012 2:43 am

I am seeing what a lot of people are talking about with the lack of motion compensation - stutter in pans and tilts. Any way at all to fix that or any word from Blackmagic about possibly adding motion compensation?
Offline

Bernhard

  • Posts: 44
  • Joined: Mon Aug 27, 2012 8:00 am

Re: Teranex

PostSat Nov 24, 2012 11:37 am

Hello,

I thought, Teranex is using Motion Compensation for De-Interlacing and Framerate-Conversions?
At least according to this:
http://www.onlineprnews.com/news/59352-1283865204-teranex-motion-compensated-frame-rate-conversion-unveiled-at-ibc-2010.html

Elsewhere, I read Teranex (was) using the SiliconOptics's 'Realta' chipset for doing so.

Confusion...confusion.

Please, could anyone from BMD bring light into this?

Thank You and Best Regards,
Bernhard

P.S.: I would really like to see a Teranex that processes files!
Whether it is internally on a PCI-E board or externally via PCI-E or Thunderbolt adapter.
Doesn't matter if in realtime or simply 'fast enough' - Quality matters!
!!! F I L E - B A S E D___P R O C E S S I N G !!!
Offline
User avatar

Baz

  • Posts: 86
  • Joined: Wed Aug 22, 2012 5:06 am
  • Location: Sydney, Australia

Re: Teranex

PostSat Nov 24, 2012 11:09 pm

Bernhard wrote:.....

P.S.: I would really like to see a Teranex that processes files!
Whether it is internally on a PCI-E board or externally via PCI-E or Thunderbolt adapter.
Doesn't matter if in realtime or simply 'fast enough' - Quality matters!
!!! F I L E - B A S E D___P R O C E S S I N G !!!


I do it using 2 Hyperdecks - in REAL TIME TOO!!!
7 Multibridge Extremes, Multibridge Eclipse, Decklink HD Pro, 4 Multibridge SD, 2 Multibridge HD, UltraStudio Express, 3 Videohub 12x24, Videohub 72x144, Smartview Duo, Teranex 2D, ATEM 2me, 4 Miniconverter, 2 HDLink Pro, Hyperdeck Shtle 2 and Studio
Offline
User avatar

Paul Provost

  • Posts: 200
  • Joined: Wed Aug 22, 2012 6:17 am
  • Location: Hollywood, CA

Re: Teranex

PostSun Nov 25, 2012 3:32 am

Yeah, or send the file from one computer/Nle/sdi > teranex > computer/nle/sdi or thunderbolt
www.4kfinish.com | Hollywood, CA | Paul Provost - owner/colorist
latest work: www.facebook.com/4kFinish
Offline

Bernhard

  • Posts: 44
  • Joined: Mon Aug 27, 2012 8:00 am

Re: Teranex

PostSun Nov 25, 2012 12:46 pm

Paul Provost wrote:Yeah, or send the file from one computer/Nle/sdi > teranex > computer/nle/sdi or thunderbolt


Hello,

actually I do such a WORKAROUND:
I put my ProResHQ HD masters onto a KiPro;
playback and scale them down to capture via SDI board.

I HATE THIS WORKAROUND!

I am living in the 21st century!
I am operating with video FILES!
Therefore I need FILE BASED PROCESSING!



Before BMD hat acquired Teranex, they planned a
server-like device (VC400) for file-based conversions.
Just another workaround and for most users a fail in concept.

There needs to be an easy and ergonomic way to process video-files.
I vote for a PCI-E board/external adapter.

Best regards,
Bernhard


P.S.: I'm NOT arguing against Hyperdeck or other File-recorders!
Excellent devices. Videorecorders for the 21st century.
But unnecessary in the context of video-file conversion.
Offline
User avatar

Perry

  • Posts: 67
  • Joined: Mon Sep 10, 2012 1:54 pm
  • Location: Boston, MA

Re: Teranex

PostWed Nov 28, 2012 5:35 pm

I am living in the 21st century!
I am operating with video FILES!
Therefore I need FILE BASED PROCESSING!


Then you need to be doing this work in a file-based realm, such as a computer. The Teranex is a video processor, not a file processor. That is, it's designed to take a video input signal in and output a video signal. It's pretty cool that BMD has made it so you can output to Thunderbolt to output files, which takes care of half your problem.

If you want a purely file-based system, After Effects does a great job on most of the conversions the Teranex can do.
Offline
User avatar

Paul Provost

  • Posts: 200
  • Joined: Wed Aug 22, 2012 6:17 am
  • Location: Hollywood, CA

Re: Teranex

PostWed Nov 28, 2012 6:46 pm

here, here!
www.4kfinish.com | Hollywood, CA | Paul Provost - owner/colorist
latest work: www.facebook.com/4kFinish
Offline

Bernhard

  • Posts: 44
  • Joined: Mon Aug 27, 2012 8:00 am

Re: Teranex

PostThu Nov 29, 2012 5:46 pm

Perry wrote:
I am living in the 21st century!
I am operating with video FILES!
Therefore I need FILE BASED PROCESSING!


Then you need to be doing this work in a file-based realm, such as a computer. The Teranex is a video processor, not a file processor. That is, it's designed to take a video input signal in and output a video signal. It's pretty cool that BMD has made it so you can output to Thunderbolt to output files, which takes care of half your problem.

If you want a purely file-based system, After Effects does a great job on most of the conversions the Teranex can do.



Sorry, but due to several reasons this is simply FALSE.
Almost ALL video applications out there are extraordinary weak when it comes to image processing; especially when handling interlaced frames. And if the algorithms are fine, then they operate at 8bit only, or do handle only 4:1:1 and so on... simply not suitable for professional usage.

These apps are making very bad compromises in favor of speed over quality.
I've tested a lot, and e.g. After Effects is one of the weakest when it comes to image processing:
- it throws away the half of the frame at de-interlacing.
- it uses bilinear scaling.
- it has no noise reduction filter (and NO, applying a gauss filter is not an appropriate solution).
- (and NO, applying a ton of plugins on a very basic task isn't sophisticated; years ago there was a plugin worth using: Algolith Algosuite - discontinued)

It's very funny that You mentioned AfterFX: customizable scaling filters like Lanczos or other SinC filters are under the top ten feature requests for AfterFX...
And those apps out there using Lanczos are using it the 'stupid' way: The whole image is scaled with the same filter settings. Good HW-scalers like Teranex operate image adaptive: they are detecting edges and determine which filter is suited best for every pixel of the resulting image; or in case of Teranex' diagonal filtering they choose which pixels in the search region are appropriate to be processed...

The only app I've discovered that could at least compete with hw-scalers/processors is Smoke2013.
But specialities like SuperResolution upscaling You won't find even there.

Teranex' biggest competitor, S, founded a spin-off company to bring the quality of their
hw-conversion to a file-based workflow in conjunction with transcoding.
Their solution starts at € XX,000!

Under this circumstances it is simply annoying that we have the best algorithms available in our facilities, but can't use them on our files. Even the video processing in our cheap TV-sets are
much better than what we get in our video apps.

Best regards,
Bernhard
Last edited by Bernhard on Sat Dec 15, 2012 4:32 pm, edited 1 time in total.
Offline
User avatar

Perry

  • Posts: 67
  • Joined: Mon Sep 10, 2012 1:54 pm
  • Location: Boston, MA

Re: Teranex

PostThu Nov 29, 2012 6:23 pm

If you want to use the teranex for files, you have a solution - play the file out of one system, SDI into the teranex, Thunderbolt or SDI into the target machine.

The only thing lacking with this workflow is that you need to do it "wild" without deck control. But this is easy enough to work around. I've done it 4 times already this morning on downconverts done with this method. It's a hell of a lot faster than software processing, because it's real time. You're unlikely to find any software based noise reduction that's quick, even one that uses the GPU.
Offline
User avatar

Paul Provost

  • Posts: 200
  • Joined: Wed Aug 22, 2012 6:17 am
  • Location: Hollywood, CA

Re: Teranex

PostThu Nov 29, 2012 6:28 pm

I'll second that. works great - now if only the ultrascope was usable...
www.4kfinish.com | Hollywood, CA | Paul Provost - owner/colorist
latest work: www.facebook.com/4kFinish
Next

Return to Post Production

Who is online

Users browsing this forum: No registered users and 4 guests