Fig. 260. §14 Imaging
Walnut CT
This is a real walnut, scanned with X-ray CT at CWI in Amsterdam: more than a thousand X-ray pictures taken from all around it, worked back into a volume of how dense the walnut is at every point.
1Facts
- Shelf
- Imaging
- Kind
- Built from a recipe
- Made from
- Drag up or down on the walnut to cut into it.
- Sound
- Yes
- Licenses
- CC BY 4.0
2How to play
Drag up or down on the walnut to cut into it. Tap to see only its shell.
3Its controls
Table I. Every control on this Splash.
| Control | Kind | Range | Start |
|---|---|---|---|
| Shell only, or the whole walnut | Tap | ||
| Shell only | Switch | Off | |
| Cut | List | 3 choices | Front to back |
| Colors | List | 4 choices | CT gray |
4About it
This is a real walnut, scanned with X-ray CT at CWI in Amsterdam: more than a thousand X-ray pictures taken from all around it, worked back into a volume of how dense the walnut is at every point. Each splat here is one small block of that volume, 0.3 mm across, bright where the walnut is dense.
Drag up or down to cut into it and see the woody shell, the kernel's folded lobes and the air between them. Choose the cut's direction and the colors (CT gray, warm, night vision or infrared) in the Splash tab. Tap to show only the densest parts: the kernel melts away and the shell stays. The scan is Walnut 1 of a dataset by Der Sarkissian, Lucka, van Eijnatten, Colacicco, Coban and Batenburg (CC BY 4.0).
5Sources and credits
| Work | By | License |
|---|---|---|
| Cone-Beam X-Ray CT Data Collection Designed for Machine Learning: Samples 1-8 (Walnut 1) | Henri Der Sarkissian, Felix Lucka, Maureen van Eijnatten, Giulia Colacicco, Sophia Bethany Coban, K. Joost Batenburg (CWI) | CC BY 4.0 |
