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theugly
Joined: 14 Feb 2012
Posts: 4
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| Posted: Fri Nov 01, 2013 12:45 pm Post subject: videoprocessor frame interpolation 720p24h to 720p60z for 3D |
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Hi is there an external videoprocessor which can take an 720p 24hz as hdmi input and frameinterpolate it to 720p 60z hdmi out?
Not SBS or anything like that, pure 3D movie discs
regards,
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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CIR Engineering
Joined: 25 Aug 2008
Posts: 4269
Location: Chicago USA & Berlin Germany
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| Posted: Fri Nov 01, 2013 5:54 pm Post subject: |
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Yeah, and of the Lumagen Radiance or 20xx processors can do it. They can take in any type of 3D including Frame Packed, Side By Side, Top Bottom, and then convert it to any other type of 3D output including frame sequential. Frame sequential would work on a regular TV running 60Hz of that is what you are after? There will be flicker when watching 3D at 60Hz though. Running at 96Hz or at least 72Hz would be better.
Curious, where are you getting a 720p 24Hz 3D source?
craigr
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theugly
Joined: 14 Feb 2012
Posts: 4
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| Posted: Fri Nov 01, 2013 8:10 pm Post subject: |
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Thank you both! I am happy to see this forum community is so alive!
Let me try to explain what I am after.
I have an Oppo 93 to play 3D bluray discs. My projector is an Epson TW9100 (I believe in the USA that would be an Epson 6010 or 6020).
Playing 3D is really good on the projector however the judder suffering from 24hz is too painful for me to watch. The projector has support for frame interpolation but only in 2D. The projector only accepts 24hz when getting an 1080p signal. But in 720p it accepts 60hz. So i am seeking a videoprocessor which does frame interpolation.
I got SBS frame interpolation working on 60hz using SVP (http://www.svp-team.com/). SVP is amazing and this proves to me frame interpolation in 3D is really worth it. SVP relies on ffdshow and sadly 3d bluray playsoftware like PowerDVD and TMT doesn't support ffdshow.
Half SBS cuts down on detail a lot (960x1080). So far I failed feeding my projector Full SBS (3840x1080). Software like DVDFab supports ripping 3D blurays to Full SBS.
So my questions are;
Can an (radiance) videoprocessor offer frame interpolation? Or is it possible an processor accept a Full SBS signal and feed it to my projector? According to the manual the projector supports SBS at 1080p 60hz, it doesnt say a word though its Half or Full SBS.
an other question:
I am also a bit puzzled how you manage to feed 120hz signals to projectors. I am pretty sure the definition of hdmi1.4 is maximum 1080p at 60hz?
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Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
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theugly
Joined: 14 Feb 2012
Posts: 4
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| Posted: Fri Nov 01, 2013 8:34 pm Post subject: |
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Or have a VP get a 720p24hz signal and interpolate to 60hz.
Unless somebody knows how to trick my projector to accept 1080p at 60hz.
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noos@xp37+
Joined: 17 Jun 2008
Posts: 464
Location: Berlin/Munich
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| Posted: Thu Nov 07, 2013 12:20 pm Post subject: Re: videoprocessor frame interpolation 720p24h to 720p60z fo |
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| theugly wrote: | Hi is there an external videoprocessor which can take an 720p 24hz as hdmi input and frameinterpolate it to 720p 60z hdmi out?
Not SBS or anything like that, pure 3D movie discs
regards, |
I guess the topic is about frame interpolation, not refresh interpolation.
Never heard of the Radiance being able to calculate extra in between frames:
http://www.convergent-av.co.uk/forum/index.php?t=msg&th=2215&start=0&rid=0&S=07e83fb2a9d98dac10b13e4351b31040
You want to feed your projector 3d famepacked 1280x720p60 (alias ~ 1280x1450 60hz, two times 1280x720p60), because at 1080p 3d framepacking is limited to 24hz (~1920x2180p24, two times 1920x1080p24). Just to have the expressions right for the further text.
At first, there is no vp that will accept (digitally) full sbs 1920x1080p60 alias 3840x1080p60. So will the radiance only accept half sbs in a 1920x1080p60 stream, resulting in 960x1080p120 - but no way to output that digital.
Using a Pc and SVP, you will be able to output anything in 3d fampacked 1280x720p60 (alias ~ 1280x1450 60hz, two times 1280x720p60).
But half sbs at 960x1080 has an higher pixel clock than 1280x720, so it is the higher resolution. Does you projector understand half sbs 1920x1080? If so, play half sbs files and interpolate them to 1920x1080p60 half sbs via SVP. If not, let the Pc output 3d famepacked 1280x720p60 (alias ~ 1280x1450 60hz, two times 1280x720p60) - and your source material (full or half sbs 1080p) does not matter, because 720p will be lower anyway.
I just fed my Marquee Ultra 180hz (!!!!) in 3d tests, and 1080p with 120hz - everything RGBHV analog. CRTs are limited by the scan rate and the RAMDAC (d-a converter) of graphic cards. RAMDAC is calculated as pixelclock and should go up to 400. But I have seen jumps in both directions. But with the limited bandwidth there is no need for more with CRTs. Most stunning results I get with 144 and 150 hz refresh rate at 3D (interlaced needed with 1080 to reduce scan rate, or you use 1920x800p144 with a 2,4;1 setup). The picture becomes, even in super bright scenes, rock rock rock rock rock solid - no shutter. I was not able to improve this by increasing over144/150hz, as glasses timing is more important then to eliminate flicker fully. 1920x1080i at 144/150 gives too much scan lines at my setup, because I sit 2 meters from a 4 meter screen. so I did 1920x1600i at 144/150hz, or 960x1600i at 144/150 when playing half sbs files.
Any vp that does frameinterpolation needs to support/understand 3d, because when calculation frames in SBS or framepacked material, the vp need to know that there are two pictures in one frame. If not, interpolated frames will be wrong. Like in SVP, where you have to tell it the type of source to get good/best results in 3d. Even if you feed the vp framesequential, the vp will calculate frames wrong for the specific eye. So nothing on the market.
Only chance are recent topline TVone devices, so drop them a mail if these are in your budget 
Regards
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theugly
Joined: 14 Feb 2012
Posts: 4
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| Posted: Thu Nov 07, 2013 12:42 pm Post subject: |
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Thank you for your reply! I will need to reread it a couple of times though to fully understand
very much appreciated!
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MTR
Joined: 21 Feb 2012
Posts: 10
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| Posted: Fri Dec 27, 2013 6:45 pm Post subject: |
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| theugly wrote: | Thank you for your reply! I will need to reread it a couple of times though to fully understand
very much appreciated! |
Me too !
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