Filtered Backprojection (FBP)

The Filtered Backprojection (FBP) is a very efficient, and therefore widely used, reconstruction method.

The ASTRA Toolbox is an open source tool for efficient and flexible tomographic reconstruction algorithms. It is being developed at the University of Antwerp, Belgium and at the Centrum Wiskunde & Informatica (CWI), Amsterdam, The Netherlands.

[sebastianwei]

I think you guys just saved my CT exam on monday...

[christerranaldo]

Such an intuitive explanation. My teacher spends 2 hours explaining it and I still didn't get it!

[hm]

2:53 can you make a video where you say Ram-Lak for 10 minutes?

[jamesdavid]

I'm doing my final year project on this and it has help me so much in understanding what my equations are actually doing. Thank

[BobJamBob]

Best explaination to be found on youtube! Good job! This really helped me understanding

[kevinmeyer]

Wow this is exactly what I searched for very nice and easy explanation

[hellomynamessam]

Very interesting video, this has really helped me out, thank you.
Could you (or anyone!) explain how this relates to the inverse radon transform please?

[aboutmedicine]

Can I ask how you generated the projection images @1:30?

[thunder]

Thank you for the good explanation, are you still planning on releasing a video about the derivation of FBP from the Fourier slice theorem?

[Randomer]

Medical Physics exam in 12 hours... thanks!

[aliabrar]

this is amazing video, but anyone can tell me that whats the difference back projection and forward projection?
Please give me answer if you know ?

[elijak]

I think there is a mistake on 3:09. He's saying "all the frequencies HIGHER than that are set to zero". I guess the right word was "LOWER" as we're talking about a High Pass filter, so lower frequencies than a certain amount get cut.

[naukadladzieci]

Each point on the 'object domain'? In English world no one uses that complex terminology to explain relatively simple things.