3D Vision Blog

A normal user's look into the world of 3D Stereo Technologies

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YouTube’s New Support for 4K Video Resolution Means Better Stereo 3D

July 11th, 2010 · 7 Comments · General 3D News

YouTube has officially announced that now they support upload and playback of videos with resolution of up to 4K (up 4096×2304 or 2304p and of course also 4096×2160/3840×2160 pixels or 2160p), and although this is not something that every normal user will be able to take advantage of at the current moment, it is still a good move. Actually the update of the supported resolution is more interesting move for people that are working with stereoscopic 3D video than to those that work with higher resolutions than Full HD 1080p (1920×1080). The reason for that being is that commercial cameras that offer recording in 4K 2D resolution like the RED Camera for example are quite expensive for a normal user to afford, but using two consumer grade Full HD cameras you can record stereo 3D video on the cheap and get it in Side by Side format with resolution of 3840×2160. Then you can upload the video in its full resolution and everyone will be able to watch it in its original intended quality in 3D, instead of having to rely on 1080p with half resolution, because of the image being squashed in order to fit into the old supported video format, although this mode will still be available for compatibility reasons with some 3D hardware.

So going to 4K video resolution is indeed a good news for all of us interested in stereo 3D, and in order to get the full quality of normal videos or stereoscopic ones that go beyond 1080p resolution you’ll just have to click on the Original mode when selecting the resolution. This will show the original resolution that the video uses if it is in more than 1080p and up to 2304p, no matter what the resolution is in between these supported modes. Just have in mind that watching 2D or stereo 3D video in 4K resolution online through the flash player requires higher bandwidth, faster CPU and preferably a good video card that can handle GPU acceleration to decode the content in real time. The new 4K support is referenced by the fmt=38 mode in YouTube and that is something that you just might be interested to know if you are interested a bit more into the internal workings of YouTube. What I would recommend to do if you want to actually watch these videos comfortable is to download them on your computer and then watch them, and that is a must if you want to watch stereo 3D videos with 3D Vision anyway.

A few 2D videos in full 4K resolution currently available on YouTube…
YouTube Download Plugin for Greasemonkey with support for 4K (Original) videos…

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About the HDMI 1.4 Standard and the Stereoscopic 3D Support

December 29th, 2009 · 3 Comments · Other S3D Tech


The HDMI 1.4 specifications were introduced earlier this year, but we are yet to see devices using the new standard and taking advantage of the new features that were introduced, one of which is the official stereoscopic 3D support. Aside from that HDMI 1.4 increases the maximum supported resolution to 4K (4096×2160 pixels), new HDMI Ethernet Channel with speed of up to 100 Mbps, Audio Return Channel, new Micro HDMI Connector, expanded support for different color spaces and an Automotive Connection System.

Of course the thing you are probably most interested in is the stereoscopic 3D support that is expected to be the key factor into making the 3D support widely available on TV sets and other consumer electronic devices, including game consoles. The HDMI 1.4 specifications support wide range of 3D display formats at up to 1080p resolution, including: frame, line, or field alternative methods; side by side methods (full and half) and 2D plus depth methods. And as 3D video requires substantial data throughput, you’ll have to use a High Speed HDMI cable that can be even an HDMI 1.3 compatible, although with such you’ll not be able to use the new Ethernet Connection feature.

Here comes an interesting question that is related to PlayStation 3 – how will Sony add stereoscopic 3D support for the console that only supports HDMI 1.3? The truth is that even HDMI 1.3 is capable to provide enough bandwidth for 120Hz video output even at 1080p resolution, but the actual problem might be in the console not being capable to support 120 frames per second in Full HD resolution. So it is most likely that stereoscopic 3D gaming on PS3 will start of at 720p resolution, especially if Sony will want their consoles to be able to work on 200/240Hz displays providing enough fps for good experience. Anyway these are still some thoughts about the issue and are not based on official information coming from Sony, so we should still wait a bit more to see what will actually happen. It is also quite possible that the firmware update fore the PS3 that will add the S3D support won’t add support for gaming in stereoscopic 3D for all the already released games and we’ll have to wait for new titles. Another thing that is also still not quite clear regarding the PlayStation 3 is the support for the recently finalized Blu-ray 3D specifications and the upcoming Full HD movies on Blu-ray next year. The PS3 should also be able to play 1080p videos in 3D, but we are yet to see how thing will turn out…

For more information about the HDMI 1.4 specifications and features…

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