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Picture of Pumpkin PACS/Pumpkin Pi
The Pumpkin PACS was constructed for the MGH Radiology Pumpkin Decorating Contest. It is a standalone DICOM workstation capable of displaying many standard types of radiology images. 
The pumpkin contains a Raspberry Pi which projects images onto a screen using a Microvision SHOWWX+ HDMI pico projector. The screen is made of tracing paper.  The application displaying the images is Aeskulap http://aeskulap.nongnu.org/.

The steps below include details of how to install the radiology workstation software and get images to the device - but the basic mechanism could be used on any project where a Raspberry Pi is projecting a mirror image so that it appears correctly when it illuminates a screen from behind.

FDA warning: this device is not for clinical or culinary use. The screen isn't bright or sharp enough to meet the guidelines of the American College of Radiology. No strictly documented engineering process was followed nor any attempt was made to adhere to the good manufacturing process outlined in the FDA's 510(k) requirements. However - it is absurd and you're reading this so it might be of some interest. 

[Added in edit: The images here belong to the patient (me, the author) are were not downloaded from the clinical servers at the hospital. It's my knee :-)]

[Jargon alert:
PACS - Picture Archive and Communication System. This is what a radiology department typically uses to accept/store/display medical images.
DICOM - Digital Imaging and Communications in Medicine. This is a computer protocol for medical images. It is widely used in Radiology and Cardiology.
]
 
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imark7710 days ago

really no comments yet?

this is actually pretty neat.

I used to work at a farm market that has an employee and customer pumpkin contest. the last year that I was there I made pumpkin speakers. my only problem was that i couldn't really find family safe Halloween music to play, and I had one person say they looked like eyes and another person say that they looked like something more inappropriate.

my original idea was to run a power cable to the one side that had an amp and use an FM radio tuned to a transmitter 10 feet away. barring way too much interference i ended up putting my cart of goodies and electronics underneath the pumpkin display. i had a laptop computer, 2 wireless microphone receivers and a small mixer neatly tucked into a folding collapsible cart.

the idea was to say "vote for me", I mean "boo" whenever somebody walked by. I ended up handing off one microphone to another employee who had a bit more fun than I did ( I was at the register that day and I couldn't really see the display all the time, he was elsewhere ). in the end I'm not sure that very many people realize that the pumpkins were playing music.

we also got to dress up and I went as a scientist with a green lab coat. there was more to that costume but it's been a few years.

I was kind of stumped at the end of that season wondering how I would top myself next year, the good thing is I didn't come back.

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Wow! Very cool! How long did it take you to build this?
bob30301 year ago
Great job, the most unique jack o lantern I've ever seen. Nice knees also . Thanks for posting.