The 2d camera system has predictably gone tech to be replaced by a heath robinson compromise but at least it’s a working 3d mirror.Which is more than can be said for the camera even when it’s working.
3D mirrors?
Yes, carryfast has googled so.ething, and got the wrong end of the stick, but, like a Labrador, he runs with it and refuses to let it go…
A mirror is NOT 3D… it’s a flat surface, with a 2D reflection of a 3D situation. Just like the screen, gives a 2D picture, of a 3D situation.
The reason our brain seemingly finds it easier to judge distance and speed in a mirror (debatable if the average overtake is anything to go by… ), is practise. You’ve grown up with rearview mirrors. Use camera mirrors for a while, and you’ll get used to it.
Ask an average car driver to reverse, just using the car mirrors… or tie your shoelaces in front of a mirror, looking at the mirror.
The 2d camera system has predictably gone tech to be replaced by a heath robinson compromise but at least it’s a working 3d mirror.Which is more than can be said for the camera even when it’s working.
3D mirrors?
Yes, carryfast has googled so.ething, and got the wrong end of the stick, but, like a Labrador, he runs with it and refuses to let it go…
A mirror is NOT 3D… it’s a flat surface, with a 2D reflection of a 3D situation. Just like the screen, gives a 2D picture, of a 3D situation.
The reason our brain seemingly finds it easier to judge distance and speed in a mirror (debatable if the average overtake is anything to go by… ), is practise. You’ve grown up with rearview mirrors. Use camera mirrors for a while, and you’ll get used to it.
Ask an average car driver to reverse, just using the car mirrors… or tie your shoelaces in front of a mirror, looking at the mirror.
THIS! And to be fair Carryfast in a roundabout way educated me as I had to read up on what he has been saying as the physics of a mirror hasn’t really ever crossed my mind
the nodding donkey:
A mirror is NOT 3D… it’s a flat surface, with a 2D reflection of a 3D situation. Just like the screen, gives a 2D picture, of a 3D situation.
No. The reflective surface is indeed 2D (ignoring the fact that most vehicle mirrors are curved - but that’s not entirely relevant here). But because our eyes are a few inches apart, the images in each eye are slightly different, just as they are when looking directly at the scene, and our brains use these differences to create a 3D picture. Mirrors preserve those differences (as the line-of-sight is still slightly different for each eye), LCD displays do not because they only have the one camera, and thus only one viewpoint and one line-of-sight.
the nodding donkey:
A mirror is NOT 3D… it’s a flat surface, with a 2D reflection of a 3D situation. Just like the screen, gives a 2D picture, of a 3D situation.
No. The reflective surface is indeed 2D (ignoring the fact that most vehicle mirrors are curved - but that’s not entirely relevant here). But because our eyes are a few inches apart, the images in each eye are slightly different, just as they are when looking directly at the scene, and our brains use these differences to create a 3D picture. Mirrors preserve those differences (as the line-of-sight is still slightly different for each eye), LCD displays do not because they only have the one camera, and thus only one viewpoint and one line-of-sight.
See, that’s what I mean. What you say is technically correct, but as with almost every optical view angle and optical illusion, the brain is easily tricked, and just as easily capable of adjusting the image, to work with it. But Carryfast has latched on to it, and is now on a crusade that the image of the screen is 2D, and a mirror 3D (which its not).
The real issue is not the dimensional plane, but the light up screen in the dark, and the cameras inability to deal with bright lights. And possibly the effects of a lit screen in the corner of your eye.
the nodding donkey:
See, that’s what I mean. What you say is technically correct, but as with almost every optical view angle and optical illusion, the brain is easily tricked, and just as easily capable of adjusting the image, to work with it. But Carryfast has latched on to it, and is now on a crusade that the image of the screen is 2D, and a mirror 3D (which its not).
That’s the point though - the vast majority of those optical illusions (e.g. the classic one of a model car placed close to the camera appearing to be a full sized one much further away) rely entirely on a fixed viewpoint with no possibility of stereoscopic vision resulting in the viewer’s brain filling in the missing detail to make the illusion work. With a 2D image on a screen (unlike an actual reflection in a mirror) you cannot even adjust your viewpoint slightly by moving your head to clarify exactly what you are seeing.
The real issue is not the dimensional plane, but the light up screen in the dark, and the cameras inability to deal with bright lights. And possibly the effects of a lit screen in the corner of your eye.
They are all real issues (including the absence of 3D vision). I’d like to think that the elimination of the “blind” areas caused
By conventional huge mirrors would more than outweigh them, but until I’ve actually tried such a vehicle a few times (in some challenging weather/lighting situations) I really couldn’t say one way or the other.
), is practise. You’ve grown up with rearview mirrors. Use camera mirrors for a while, and you’ll get used to it.
