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Inside the pumpkin
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Inside the pumpkin

by Rob Graham

Gallery: FloraPosted October 30, 2011163 views9 comments
Gary Yeoh's work with flowers and a mammography unit inspired me to attempt the same sort of work. I didn't have much luck, but also haven't spent the time to master it. Instead, I took a different approach to combining radiography and flora. For this series, I scanned a pumpkin with a CAT scan unit at work, then reconstructed the data to create these images. Using the reconned data, I then cut away part of the pumpkin to reveal a side view and then part of the top of the pumpkin to reveal a view from the top. One issue I had when working with these is they are only 512x512 natively, so I had to enlarge them. The seeds especially show the jaggies inherent to a low pixel matrix. I found the patterns of the seeds to be quite interesting. The recon software actually imparted a slight orange cast to the data, which I then enhanced in CS5.

Moderators, if this is to far fetched for this forum, please don't hesitate to delete or move the image.

Siemens Somatom Sensation 64, 495 slices at 0.6mm each, Aquarius workstation for reconstructions. C&C always welcome and appreciated.

Comments

9 comments
Comment posted by Bill Fach on October 31, 2011 at 12:11 AM
Rob: Hey, if it grows it goes and this definitely grew at one time. Cool study. I wonder if I can pick up a CT scanner or x-Ray machine at B&H :wink:. Nicely done.>=))>
Registered on November 1, 2003, 1805 Posts, 26981 Comments
Comment posted by Ian Wolfenden on October 31, 2011 at 9:12 AM
i don't fully understand the technicalities involved here, Rob, but I really love the image. A very satisfying, beautifully balanced triptych, with fascinating detail, great textures and lovely, sombre colouring.
Registered on May 18, 2007, 1108 Posts, 7647 Comments
Comment posted by Nancy Lea Sandy on October 31, 2011 at 11:00 AM
Very interesting technique. Looks almost Van Goghish
Registered on January 24, 2011, 576 Posts, 6942 Comments
Comment posted by Tonia Graves on October 31, 2011 at 1:30 PM
Rob, Very cool! As an X-ray tech I can appreciate the complications in making these images. Nice that you have the opportunity to expirament w/ the 64 slice CT scanner!
Registered on October 29, 2011, 92 Posts, 1035 Comments
Comment posted by Rob Graham on October 31, 2011 at 1:50 PM
Thanks for the comments, everybody.

Bill, thanks for letting this stay, and if you find a good deal on a CT or X-ray machine, let me know :).

Ian, a modern CAT scan machine creates a volume of info as it scans, which can then be cut into individual slices. In this case, I chose a 0.6mm thickness per slice, as it is the thinnest our machine can create. Those 495 slices were then sent to the Aquarius workstation, which essentially stacked the images to recreate the volume of info, as well as performed surface rendering. I then manipulated that image to create the above images. I wish I had CS5 Extended, as I think it handles dicom files and can do 3D rendering. I am including a single 0.6mm slice as a reference for how the original data looks; the image is from the middle of the pumpkin.

Tonia, I am lucky to have an open-minded supervisor :). CT is my favorite modality, though I also regularly work in Nuclear Medicine and diagnostic x-ray.

Take a peek in the Photo Art gallery for a different look at this subject :).
Registered on August 22, 2006, 842 Posts, 2824 Comments
Comment posted by Pam Colander on November 1, 2011 at 12:42 AM
Very cool Rob! My former manager would've said "Well, do we need to overstaff ?"
Registered on December 7, 2006, 210 Posts, 1062 Comments
Comment posted by Tonia Graves on November 1, 2011 at 3:24 PM
Rob, Very cool! My current supervisors are not so excited about x-ray "art". I'll check out what you posted in the photo art gallery.
Registered on October 29, 2011, 92 Posts, 1035 Comments
Comment posted by Morris McClung on November 1, 2011 at 6:37 PM
Fascinating!
Registered on May 7, 2007, 670 Posts, 19650 Comments
Comment posted by Gary Yeoh on November 4, 2011 at 6:03 AM
Bob:
Sorry for coming to the party late. Was just too busy in the last few weeks to even peep in.

W:eek:W you have jump into this with the big guns.!!!

I was going to try the CT scan at some stage but you have beaten me to it. At least now I know it will work and there is no need to do the proof of concept work. What is most interesting for me is the fact you could use the software to render the color into this grayscale image. Your photoart image is way out in the energy realm!

Look forward to seeing more of your Xray images.
Registered on September 1, 2009, 588 Posts, 8184 Comments