operaghost on 1/12/2007 at 23:26
In theaters the polarized glasses are used. But home movies almost always use anaglyph glasses, with a small fraction using shutter glasses. which is not as convincing in my opinion. Why don't home movies use the polarized kind?
Pyrian on 1/12/2007 at 23:39
Maybe it's hard to make a TV that gives off two sets of differently polarized light?
Microwave Oven on 2/12/2007 at 00:16
I wouldn't say it's hard to accomplish this, but rather it's more expensive. Using the polarized projection system, you need two separate image sources. Two projectors = $$$. If you could somehow combine the two systems into one screen, such as a flat panel display with an interlaced polarity filter, you would wind up losing half of the available horizontal resolution.
Not only do you have a display problem, but also a problem of image storage and playback. You could either use a new, incompatible format which could play back a movie with two simultaneous video streams, or use an existing format by interleaving the images, which would cause you to lose resolution (spatial or temporal).
Then theres the whole deal of requiring glasses. As well as keeping your head level to the screen. It's just plain uncomfortable.
All in all, I don't see 3-d home movies using polarization taking off at all.
Hioncoffee II on 2/12/2007 at 10:05
My photogrammetry lecturer voiced a very similar question a couple of months ago, except it was, why don't computer games use shuttered lens or polarised light 3D imaging?
Kyloe on 2/12/2007 at 12:52
The glasses tend to fall off when you yank too much.
Someone had to say it.
icemann on 2/12/2007 at 13:29
Always wanted to see the "3D" versions of Friday the 13th part 3 and Jaws. Both were quite good apparently with the glasses on.
Vivian on 2/12/2007 at 19:44
I saw Jaws 3 in 3D-O-Vision, it was pretty trippy. Some guys severed rubber leg looks liked its nearing your nose at one point. I had been drinking absinth.
heretic on 3/12/2007 at 00:47
Quote Posted by Kyloe
The glasses tend to fall off when you yank too much.
Someone had to say it.
Not only that, but they give you a vicious headache which tends to kill the mood.
hopper on 3/12/2007 at 09:04
Not to mention that for some people, including me, they just don't work.
CyberFish on 3/12/2007 at 09:35
You'd need either two projectors and an aluminised screen (which would be out of most people's price range), or two CRT screens and a complicated half-silvered mirror arrangement (which would take up about three times as much space as a standard CRT television). You can't do it with LCD screens because they use polarisation already. Put simply, it's just not practical for home viewing.
