34638Re: [tmboptical] Re: new toy...
- Sep 2, 2007Tube Tim wrote:
> WG:WG: Funny Tim, your comments closely mirror a discussion I just had on
>> I do note (Tim) that a real binocular does have enhanced depth of
>> field over just using a BV with a single objective, even on
>> astronomical views,
> With the larger bino that seemed to be the case where was with a pair
> of smaller ones it doesn't. Perhaps this was due to dark sky versus
> city skies and richer star fields filling in more details. Be that as
> it may I've read research papers on machine vision for stereoscopic
> vision and I thought the human vision system (HVS) loses the ability
> to see 3D due to the displancement of the eyes ("range finder") in 30
> meters (?). An experiment I've tried is shine a laser into a fog bank
> and view the beam with both eyes. At some point you see the two beams
> converge to one and I suspect that is the limit of range finder mode.
> Not sure, maybe it doesn't mean anything.
another group again. There was a confusion about the true meaning and
nature of terms like stereo vision, stereoscopic vision, binocular
vision and the like. But what you say above sounds absolutely right.
>WG: Right. The output to the brain is a stereo field to some degree
> THe HVS is pretty amazing as it can fill in the 3d details using
> information about objects in the scene.
regardless of the input. The brain just expects and assumes a stereo
input and processes as such. It just varies in degree, just as a stereo
speaker system is still stereo even though it (the stereo signal) often
has monophonic components to it.
- << Previous post in topic Next post in topic >>