3D Vision Blog

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

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Some 3D Vision Monitors May Have Resolution Issue in 3D Mode

August 27th, 2013 · 11 Comments · GeForce 3D Vision

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Back in 2011 when Acer released their first Acer HN274H B 3D monitor with 3D Vision 2 and 3D Lightboost technology support and I’ve got a unit for testing I have noticed that the monitor had some problems with the resolution in stereoscopic 3D mode. When it was showing something in stereo 3D mode the image was like with only half of the vertical lines per eye and not all of them showing, very similar to what you are seeing in a passive 3D monitor though there in 3D mode you get half the horizontal lines per eye. After all one of the advantages of active 3D technology is that it is supposed to be offering full 1080p resolution per eye thanks to the shutters in the 3D glasses being used. Notice on the image above how on the 3D Vision setup wizard with the screen showing the hexagon and rectangle stereo 3D test screen how the 2D text above is just fine, however the geometric figures with stereo 3D effect applied to them are like with half horizontal resolution – you see a line of green pixels for the hexagon then a line of what seems to be white pixels then again a line of green and the same goes with the blue for the triangle. Normally these figures need to be a solid color and monitors with this vertical scanline-like or checkerboard-like issue are showing them as if they are with lower resolution then they should actually be. Note that the image above is not a very closeup shot of the screen and yet the effect caused by the issue is clearly visible, so it is easily noticeable at normal viewing distance when using the display.

Back then I’ve tried pretty much anything to see where the problem with the Acer HN274H B monitor not showing the full resolution per eye was, like using different video drivers, trying different GPU configurations, playing with different cables and so on, but nothing helped. So I ended up with the conclusion that there is something wrong with the monitor itself. Nvidia was also aware about the issue when I’ve checked with them and they were looking into what was causing the problem. I should note that when testing the Asus VG278H monitor that was the other 3D Lightboost-capable monitor back at that time there were no such problems as what the Acer monitor has shown in stereo 3D mode, so apparently not all monitors were affected by this. Since that time I’ve tested a few more newer 3D-capable monitor with 3D Lightboost technology and did not see the same problem present or that much apparent at least in any of them, however I just seen a forum post with people complaining of having very similar problem with most of the newer active 3D displays on the market though not all units seem to be affected. This includes monitors such as the Asus VG248QE, Asus VG278HE, Asus VG278HR, BenQ XL2420T and BenQ XL270T, so it seems that the problem is still there and the question is what is casing it? This issue has actually been identified as LCD inversion (alternating positive and negative voltages for pixels used within an LCD panel in order to prevent polarization and thus damage) and thanks to Mark Rejohn we already have a good online test to check your 3D monitor for LCD inversion artifacts, so check out the Moving Inversion Patterns Test.

With that said, if you have a 3D-capable monitor that is suffering from the same problem as described above (seeming like half horizontal resolution) when in stereo 3D mode and by the way this issue is also visible with moving objects when you are using the display in 120Hz 3D mode, though everything seems normal in 60Hz, you are welcome to report it in the comments below or the forum topic linked below. Please post the model of your 3D display as well as a production date (should be printed on the information sticker at the back of the display). You can easily check to see if your 3D monitor is affected by the same issue and how strong the problem is by going through the 3D Vision setup wizard and taking a closer look at the Hardware Test image with the geometric figures that is on the photo above, so you actually don’t need anything special to test, though the mentioned test above can also help if you are using a compatible browser.

To check out the topic describing the above resolution problem at the GeForce forums…

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SIG3D Stereoscopic 3D Classroom Basics Webinar

August 27th, 2013 · No Comments · Other S3D Tech

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Here is something that might be of interest for people that are considering using stereoscopic 3D as a tool in the classroom in order to be able to better keep the attention of the students, right in time for the beginning of the school year. The SIG3D Stereoscopic 3D Classroom Basics webinar took place a few days ago and a recording is now available online if you’ve missed the live one, so you can take a look and later today there will be a Q&A session. The presentation was held by Dennis Cafiero who is also the creator of Presente3D (a tool for making stereoscopic 3D presentations) and in it he makes a brief introduction on how 3D works as well as covering various 3D technologies for the classroom including anaglyph 3D, active and passive 3D stereoscopic solutions as well as glasses-free options (autostereoscopic 3D) with their pros and cons. SIG3D is an ISTE Special Interest Group for educators and innovators interested in stereoscopic 3D and is a part of the International Society for Technology in Education (ISTE).

To watch the webinar online and for more information about the Q&A session today…

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A Chance to Watch Classic 3D Movies at the 2013 World 3D Film Expo III

August 25th, 2013 · No Comments · Stereo 3D Events

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The year the World 3D Film Expo will return for a third time to the Egyptian Theatre on Hollywood Boulevard in Los Angeles, USA from September 6-15, 2013. The ten-day film festival will pay tribute to the 60th anniversary of what many film historians regard as the “Golden Age” of 3D movies, and will include screenings of the John Wayne western HONDO, the Vincent Price horror film HOUSE OF WAX, Cole Porter’s musical KISS ME KATE, and sci-fi thriller IT CAME FROM OUTER SPACE., and even later 3-D films, such as 1983’s JAWS 3-D. Lesser-known titles, such as THE FRENCH LINE with Jane Russell and film noir SECOND CHANCE with Robert Mitchum, will also be included.

The Expo is partnering with RealD to present a number of screenings in RealD 3D including Alfred Hitchcock’s DIAL M FOR MURDER and Jack Arnold’s sci-fi/horror classic CREATURE FROM THE BLACK LAGOON. Stefan Droessler, 3D historian and head of the Munich Film Museum, will present an in-depth overview of “European 3D Filmmaking 1935-1953,” including long-lost footage from the 1936 Berlin Olympics. The festival will also be home to several premieres including the Los Angeles Premiere of the 1946 Russian 3-D adaptation of ROBINSON CRUSOE. September 14th will mark the World Premiere of the stereoscopic version of the 1954 Korean War drama, DRAGONFLY SQUADRON. The film was only released in a flat version during its initial release, and has never been seen by audiences in 3D. Newly-restored 35 mm prints of shorts “Rocky Marciano, Champion vs. Jersey Joe Walcott, Challenger” and “College Capers” will be screened in 3D for the first time in 60 years.

The World 3D Film Expo was first presented at the Egyptian Theatre in 2003 and then again in 2006 and this year marks the third one that gives you the unique chance to see a great classic 3D film festival showing some of the most popular 3D movies that were made during the Golden Age of stereoscopic cinema in the early 1950’s. This is your chance to see some real 3D movie classics that you normally cannot find anywhere else in 3D or even in 2D, so if you miss it you literally may not be able to see them projected this way again.

For more information about the 2013 World 3D Film Expo III…
For the festival’s schedule including all 3D movies that will be screened…

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