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What is 3D?

How does it work?

What is 3D?

2D contains no information of depth When you are looking at an object, your eyes receive two images - one for each eye. The difference between these two images makes your brain able to calculate an information of depth. You are able to see the object and you experience the depth. When you look at a photo of a mans face, it is impossible to judge for example how long his nose is, if the man is looking straight into the camera. If you see the same person in front of you (ie. not on a photo), you have no problem at judging how long his nose is - even if he is looking straight at you. And this is due to 3D. 3D makes it possible to have information about depth. If a house were in 2D, you wouldn't be able to see any sides. Only the front would be visible, since there was no information about the depth. Try it yourself If you grab the handle to the right, you can spin the object around. Notice how it is like spinning a photo of an object in the way that is it does not allow you to see the object from the sides or the back. No matter how you spin it, you will not be able to see more information about the object than the front image. You need 3D to do that...



3D has more information Try spinning the object to the right and notice how completely different it is. You can actually see the object from the sides and even from the back. The model is in 3D and it contains information of depth, that makes it possible to view it from different angles. This is exactly the benefits of using 3D instead of 2D: You get a lot more information. And that is why we use this technology in the Guardia Control System in combination with the 3 dimensional IR model of the face.

Guardia A/S · Stæremosen 14 · DK-3250 Gilleleje · Denmark · Tel. +45 48 36 32 11 · Fax. +45 48 35 44 11
Webdesign, 3D graphics and flash animations by Lars Holmgaard