"technology developed for CERN's Large Hadron Collider"
Sir, please put on this lead vest that doesn't protect your balls and step into this particle accelerator.
That X-ray of the teeth with that hole just makes you think, I should brush my teeth.
Those are not teeth. That is an image of an ankle.
I hope they can use this to confirm if pee is stored in the balls.
Seriously though this is amazing.
Surely this is just false color, right?
I'm assuming the actual color information is either added in post or derived from density or something.
An ankle wearing a watch?
One is an ankle, the other is a wrist obviously.
Traditional CT imaging uses detectors that only measure intensity, which is the total energy deposited at the detector in a set amount of time. The Medipix uses a photon counting detector, which measures both the number and energy of photons that hit the detector. Different materials attenuate X-rays differently depending on their energies, much like how different objects have different colours. Counting how many photons of each energy reach the detector thus allows us to differentiate, to some extent, what type of material the X-rays passed through. The images we see are then presumably colour-coded by material (e.g. bone, soft tissue, fat).
Photon counting is also much more sensitive, so a lower dose of radiation can be used while still maintaining good image quality.
So it's still false colour, albeit based on detailed knowledge of the composition?
The technology sounds awesome, but the headline is... misleading. We can get volumetric data from CT/PET/MRI/others, and this is not colour imaging in the sense of actually measuring the colour of the tissue; it sounds like they are determining absorption spectra, but nowhere near visible light wavelengths.
Pretty much, yeah. This thesis from a student at the University of Canterbury goes into the details if you're interested.
that person's tooth care must be really bad
Wow, that one bone looks a little bit like a wristwatch. The human body is amazing.
they look like they're taken from sniper elite or something
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