What is the attraction of anaglyphs?

What gives vision problems is when the cut between the image seen from the right eye and the left eye isn't good enough, i.e.: when the passing band of the glasses doesn't allow complete obliteration of the othere eye's signal.

In a previous RnD contract, I had to come-up with a 3D vision system for operators to be able to operate a large bridge crane from a remote location.

You can see the cabin on the right side where the operator usually sits. We would install a home made 3D camera system in the cabin and double all the control inputs in the PLC to allow for remote control operation. Just to give you an idea, there were 4 joysticks and 25 dry contacts to transfer.

About the 3D part. We went for a passive 3D TV and 1080P images. The shutter glass TV did not produce an acceptable result for an industrial environment and there is less left-right eye cross-talk in passive 3D screens. The other advantage is that you can get a cheap supply of 3D glasses from local 3D movie theaters.

Lenses: Kowa 5mm focal C mount

Cameras: ImperX C1920, SDI interface, equivalent 10 years back

Stands: Edmund Optics: Goniometers and Rotary Stages

Image 3D multiplexer: Matrox MC-100

H264 video encoder/decoder: Haivision Makito

We used an industrial WiFi system to braodcast the signal. It worked well. We had a 0.2 seconds delay, which is acceptable.

The system worked great. They still have it installed. The goal of this system was to remove the operator from the cabin. Up there, you're breathing nano dusts of fluorinated salts, you're subjected to high magnetic fields in the order of 250 Gauss and if there's a problem and you're machine stops over a pot that's melting or arcing, well, you might be well done before they find a way to get ou out of there!

Got to go. Have a good one.

Ron

Gerry Siegel wrote:

Long History with small investment. Anaglyphs were one of the first projection methods in the '20s and '30s. Using one strip of film MGM made audioscopics. Colored cellophane was cheap and throway. No change in projection techniques needed except higher illumination. No special screen. Anaglyphs were also amenable to print. The Illustrated London News and Realites in France in mid '30s. And later on, the comic books widely sold. No special devices needed to achieve the depth effect. They are still sometimes a cheap and easy way to show stereo in print. No size limitation. I never had attraction for them myself. But well done and it takes some doing, they can be attractive. I hope that contributes to your query some...gs

I agree. Anaglyphs are best suited for prints and some times are the simplest way to see large 3D pictures on screens.