Timeline for Signal Processing using Fourier Transform
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Nov 28, 2012 at 19:16 | comment | added | endolith | The MRI machine makes your head atoms vibrate at a different frequency from your toe atoms. Those atoms all vibrate at the same time, which is recorded, and then the FFT lets you extract the amplitude of each individual frequency, which is proportional to the amount of water in each slice. Then you do it again in the other two dimensions (left side vibrating at a different frequency from right side, chest vibrating at a different frequency from back) and you can put them all together to find the amount of water at each point. | |
| Nov 23, 2012 at 20:54 | vote | accept | Richard | ||
| Nov 23, 2012 at 10:47 | history | tweeted | twitter.com/#!/StackSignals/status/271927982485012480 | ||
| Nov 23, 2012 at 7:33 | answer | added | Naresh | timeline score: 4 | |
| Nov 23, 2012 at 5:28 | review | First posts | |||
| Nov 23, 2012 at 12:37 | |||||
| Nov 23, 2012 at 5:11 | history | asked | Richard | CC BY-SA 3.0 |