Solutions for HDMI 1.4a conversion

If you deal with 3D Stereo Video sooner or later you will have to find a solution for the HDMI 1.4a problem as of today there are only very little devices available that support it. This format for example used by Blu-Ray 3D or the Sony Playstation to play out 3D video, sends the left above the right eye image in one frame without anamorphic compression.

If your display device does support it or if you have a setup with two video projectors where you need left and right eyes in two separate signals you have to convert somehow. As of today I only know of two devices that are capable of that.

For a conversion to 120Hz stereo this is the Optoma 3D-XL. It converts HDMI 1.4a as well as Side-by-Side stereo video.

For conversion to Side-by-Side and to two separate stereo signals it’s the rather pricy Corio C2-8000 series full fledged seamless switchers from tvone that became available at ISE 2011. I’ve had the chance to test the C2-8110 that comes with 6 HDMI 1.4a capable inputs and two outputs.

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Professional active stereo Full HD projector


The german company Digital Image offers a modified projectiondesign F32 projector that is capable of active stereo at true 120Hz. This is made possible by integrating a second image generation pipeline into the original F32 housing.

Digital Image claims that they developed the technology behind the F10-AS3D, available directly from projectiondesign. Here is an inteview with Anders Lokke from projectiondesign on the F10-AS3D:

Rumour has it that later this year Projection Design is planing to launch an active stereo variant of the WQXGA F35. Hopefully it will feature the same true 120Hz technologie than the modified F32 by Digital Image.

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Active stereo version of the ProjectionDesign F32

As I have just learned, there is a active stereo version of ProjecionDesign F32 Full HD DLP Projector. Not by ProjectionDesign itself but by a german company that modifies it. They integrate a second image pipeline into the unmodified housing allowing for true 120 Hz operation. Find a detailed explanation here: products – mobile immersion.

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Surface 2 demo

If this proves as promising as the demos look the new Microsoft Surface II means doomsday for a lot of other multi-touch products out there, especially for the DI kind. Like the old projection based Surface they need a lot of space behind the screen. The new Surface uses a LCD with infrared sensitive pixels developed by Samsung and is only 4 inches thick. The raw image from the device, as you can see in the demo video, looks pretty much the same as from a camera in a DI touch. But as the diffusion layer of the back projection screen is missing it is pretty sharp. This allows to use the display as a “scanner” and should extend it usability for object and tag recognition.

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