Message from @Citizen Z
Discord ID: 493035497401090048
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.
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?
see how in this picture you're closer to the left side hallway and you start to lose the left first