Hackaday Prize Entry: Reflectance Transformation Imaging - ZVEIL

Hackaday Prize Entry: Reflectance Transformation Imaging

by Brian Benchoff July 29, 2016

Reflectance transformation imaging (RTI), or polynomial texture mapping, is a very interesting imaging technique that allows you to capture all the detail of an object. It’s used to take finely detailed pictures of scrawlings on cave walls in archeology, capture every detail of a coin for coin collectors, and to measure the very slight changes in a work of art.

RTI does this by shining light over an object at very particular angles and then using image processing to produce the best image. Despite being only a few LEDs and a bit of software, RTI systems are outrageously expensive. For his Hackaday Prize entry, [leszekmp] is building his own RTI system. It’ll cost about $600, making this the best way for Citizen Scientists to capture the best image possible.

RTI is simply shining light onto an object and taking synchronized pictures of the object from directly above. As you can imagine, putting LEDs in a dome is the obvious solution to this problem, and already [leszekmp] has made three systems that works well on domes up to a meter in diameter. The electronics are as simple as an Arduino shield and a few MOSFETS, and the dome itself is an off the shelf component. It’s a great project that enables better photography, and one of the simplest and best entries we’ve seen for The Hackaday Prize.


Filed under: The Hackaday Prize

Brian Benchoff
Brian Benchoff

Author



Leave a comment

Comments will be approved before showing up.


Also in In The News

Shane Dawson Just Announced He's Engaged But Some People Think It's A Distraction From The Cat Drama

by Razmig Messerian March 20, 2019

The announcement came days after Shane was involved in a controversy where he was forced to deny he'd had sex with his cat.


View Entire Post ›

Continue Reading

17 Impossibly Cool Wedding Ideas You'll Want To Steal For Your Big Day

by Razmig Messerian March 16, 2019

Because it's never too early to start planning.


View Entire Post ›

Continue Reading

Chance The Rapper And Kirsten Corley Got Married Over The Weekend

by Razmig Messerian March 11, 2019

Chance the Rapper is now Chance the Husband!


View Entire Post ›

Continue Reading