Guiding ships with Moire patterns

[Gav]

Hi All, 

I just did a quick lasercutter project replicating a lantern that guides people via arrows created by a Moire pattern illusion: 

https://tinkeringsdotorg.wordpress.com/2018/03/28/guiding-ships-with-moire-patterns/

Cheers,

Gavin 

[Kris]

Nice!
And interesting
I'm imagining it could be used for RC planes automatic landing using computer vision.
But there are probably easier ways (GPS)

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From: Gav <the.mechat...@gmail.com>
Sent: 28 March 2018 17:43:08 GMT+11:00
To: sydney-h...@googlegroups.com
Subject: [RnD] Guiding ships with Moire patterns

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Sent from my Android device with K-9 Mail. Please excuse my brevity.

[Iain Chalmers]

Nice!

It seems you could do the same "trick" as the three light solution with two of these spread at the "safe path" angle, so perhaps youd see:

[>>>>] [<<<<] when your "safe"

[>><<] [<<<<] when you're on one edge boundary

[<<<<] [<<<<] when you're unsafe

Or even more clear with a three grate version with a "center beam" as well?

And bouncing off Kris's idea, a vertically oriented one for "glide path" as well...

I've got one of the new Ryzen/DJI Tello drones, which have a Python API - it'd be fun to try implementing "vision drivern landing approaches" with a few of these :-) (In my copious free time... Anyone _else_ want to try?)

big

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