Tony Posted June 19, 2010 Report Share Posted June 19, 2010 Quote Link to comment Share on other sites More sharing options...
Rich Posted June 19, 2010 Report Share Posted June 19, 2010 It's animated, the movement makes it look 3d, make it a still image and you get this Quote Link to comment Share on other sites More sharing options...
parthiban Posted June 19, 2010 Report Share Posted June 19, 2010 So is that the basic technology behind the screens currently in development that do 3D without the need for glasses? Quote Link to comment Share on other sites More sharing options...
phipck Posted June 21, 2010 Report Share Posted June 21, 2010 no, its a little more complicated than that. without the need for glasses envolves prisms and quite precise seating, like the 3d posters with the plastic textured film over them that you can get in hmv and zavvi ie http://www.europosters.co.uk/3d-posters/ currently the cinema uses polarised glasses (one virticaly polarised lens and one horizontal polarised lens) to ensure each eye sees a different image. the projector beams a virticaly polarised image to the screen then a horizontaly polarised image from a slightly different angle. this happens at a frame rate quick enough for you not to notice and your eyes simply process it like they do the real world. 3d tv uses shutters instead of polarised lenses, so the left lens is shuttered (goes black) while frame 1 is on the tv alowing your right eye to see it, then frame 2 displays and your left lens clears and your right lens becomes shuttered so your left eye sees frame 2, this continues alternating. again it happens so quick that you dont realy notice that your eye is missing frames of film. with this the glasses need to be in tune with the tv ensuring the correct timing of shutting else the image looks blury as you will see both images inteded for different eyes. the image at the start of this thread uses 2 imaged, one inteded for the left eye and one intended for the right eye, if you put those still imaged next to each other and went "cross eyed" the image would indeed appear to be actualy 3d heres an example there are loads of these online, i even had a book full of victorian examples as a child Quote Link to comment Share on other sites More sharing options...
Tony Posted June 21, 2010 Author Report Share Posted June 21, 2010 Images look the same to me Quote Link to comment Share on other sites More sharing options...
phipck Posted June 22, 2010 Report Share Posted June 22, 2010 they are the same, just from a slightly different angle. check the distance of the lamp (hanging from the ceiling) to the side of the image, in one image it is further away from the edge. its this different perspective in one image that mimics the different perspective your eyes have. if you can cross your eyes do so progressively untill the two images merge, the result appears to be 3d. this may help a little http://www.neilcreek.com/blog/2008/02/28/h...-see-3d-photos/ Quote Link to comment Share on other sites More sharing options...
phipck Posted June 22, 2010 Report Share Posted June 22, 2010 this may also help to explain what i mean Please wait a few moments for Video to Load! Quote Link to comment Share on other sites More sharing options...
Tony Posted June 22, 2010 Author Report Share Posted June 22, 2010 Can't get the dots to align....... Back in about five beers. Quote Link to comment Share on other sites More sharing options...
phipck Posted June 22, 2010 Report Share Posted June 22, 2010 lol The further away you are the easier it is, I sit about 2 foot from my 19" screen and that works well and no eye strain Quote Link to comment Share on other sites More sharing options...
Tony Posted June 23, 2010 Author Report Share Posted June 23, 2010 Got it........ I was going to close before Quote Link to comment Share on other sites More sharing options...
phipck Posted June 23, 2010 Report Share Posted June 23, 2010 this should help better explain why Avatar and the new 3d explosion is getting people exited (or maybe just us geeks :-) ) Please wait a few moments for Video to Load! Quote Link to comment Share on other sites More sharing options...
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