Message from @Moist Mayonnaise
Discord ID: 493035429604491266
They are using this stuff for self-driving cars. To automate the driving they have to turn the perspective view into an orthographic top down view.
https://cdn.discordapp.com/attachments/379214321907007488/459807394109849600/fig_2.png
https://cdn.discordapp.com/attachments/379214321907007488/459807507745996810/hqdefault.png
https://cdn.discordapp.com/attachments/379214321907007488/459818062858682368/65116694_resized550bbc_sg_g4_eye.png
The soure of that image.. http://www.bbc.co.uk/science/0/20937803
Even though the title is BS. No one sees further. You ONLY capture more light.
This is how they build telescopes, to capture light.
Large telescope are reflectors. The larger convex lens gets the more distortion. So they made this. It all works the same generally speaking. A telescope will only help so much. It depends on the light collecting ability that is determined by the diameter of the lens. Some of these aren't built yet...
https://cdn.discordapp.com/attachments/379214321907007488/460954948222320640/512px-Comparison_optical_telescope_primary_mirrors.png
They are making the lens bigger not building 15 mile long telescopes.
Here is a demonstration of angular resultion effects with an eye charts 1D is distance from chart 2D is 2 time the distance etc...
https://cdn.discordapp.com/attachments/379214321907007488/460955465246048256/unknown.png
Optical and Geographical Slant.
Links to PDFs and resources.
https://archive.org/details/perceptionofvisu00jame
http://faculty.psy.ohio-state.edu/todd/group/Shape%20from%20Texture/Todd-2007-jov-7-12-9.pdf
http://wexler.free.fr/library/files/todd%20%282005%29%20the%20effects%20of%20field%20of%20view%20on%20the%20perception%20of%203D%20slant%20from%20texture.pdf
http://wexler.free.fr/library/files/flock%20%281965%29%20optical%20texture%20and%20linear%20perspective%20as%20stimuli%20for%20slant%20perception.pdf
https://www.csc2.ncsu.edu/faculty/healey/download/tap.12.pdf
Source video to shorter version:
https://www.youtube.com/watch?v=8yjTuaHHsTM
A short video explanation: https://www.youtube.com/watch?v=QNg5wqYKkJE
Accompanying information and imagery to go with the above PDFs and resources.
"As he looks downward toward his feet the slant approaches zero, as he looks upward the slant increases, as the center of ckesr vision approaches the horizon the slant becomes maximal, and at the horizon itself the land ceases to be a surface and becomes an edge."
https://cdn.discordapp.com/attachments/458196098767388674/461973747197411339/Screenshot_20180628-121601_Drive.jpg
https://cdn.discordapp.com/attachments/458196098767388674/461973747776094228/Screenshot_20180628-121640_Drive.jpg
https://cdn.discordapp.com/attachments/458196098767388674/459444571332411412/Screenshot_20180621-113400_Drive.jpg
https://cdn.discordapp.com/attachments/458099953349427210/461804044697075712/unknown-35-1-1.png
Angular Resolution https://cdn.discordapp.com/attachments/458196098767388674/459052120495095818/Angular_Resolution_01_v001.webp
https://cdn.discordapp.com/attachments/458196098767388674/459052123091632138/Angular_Resolution_02_v001.webp
https://cdn.discordapp.com/attachments/458196098767388674/459052121896124436/Angular_Resolution_03_v002_1.webp
https://cdn.discordapp.com/attachments/458196098767388674/459052121065783297/Angular_Resolution_04_v002.webp
https://cdn.discordapp.com/attachments/458196098767388674/459052122537721856/Angular_Resolution_05_v004.webp
https://plus.google.com/116502556172406985386/posts/Qegqk1jSNEE
https://plus.google.com/116502556172406985386/posts/fzjPdL8H7FX
https://plus.google.com/116502556172406985386/posts/4D6qoxFBSEy
Okay, now these are interesting. Finally some diagrams haha
But these are irrelevant
since we're using a zoom lens
Camera's don't work the same as the eye. In particular the image you are showing to show that points of light can't be resolved below the rayleigh criterion is not in general true.
Thank you
sometimes I can't put my thoughts into words as well as other people ;P
Think of the light coming to your eye geometrically like a pair of scissors
The rayleigh criterion being a limit is a property of diffraction from a ciruclar aperture. Cameras can (and often do) have non circular apertures that can resolve beyond the rayleigh criterion.
ooo, I didn't know that!
That's cool :o
😃
scissors
back to what Z was saying
When the scissors close it becomes unresolvable
A flat plane cannot obscure half of an object
One of the biggest differences for instance is axicon lenses which can produce non-diffractive beams.
The angle the light is coming to your eye dictates that closure
For a gaussian beam on a circular lens*
For other waveforms and other lenses, no
If you are closer to something...it will start to blend sooner than something further
Height can cause this
Or distance
Imagine the vertical lines are say light post and the point on the left is where the observers eyes would be
on a flat plane, we should still be able to see the whole ship
yet half of it is obscured.
Your not doing it right
Oh? please fix my diagram then haha
I could be wrong :v
So if you can diagram the picture
then by all means
You're not taking into account how light works at great distances
I just explained it to youm
how light works at great distances? the photon thing?