Learning Tomography: Blur effect

In the simple Back-projection technique, the image appears blurry and we need to pre-filter the sinogram with a ramp filter before computing the 2D reconstruction. Why is this blur effect not observed in the Direct Fourier Reconstruction technique?

3D sample: The Borrromean Rings

In the collection of samples I used for tomography, there is the so-called "Borromean Rings" composed of three interleaved tori [Link].

Learning Tomograhy: New version of back projection

In this series Learning Tomography, I mentioned a backProjImproved.js script in several posts to compute a 2D reconstruction according to the backprojection technique.... Unfortunately, I have never published it. Here it  is...

Analyze

Table of Contents

Analyze objects of interest is the last step of a usual pipeline of image processing and allows to quantify or describe image features...

Crazybiocomputing; The mini-games

This blog CrazyBiocomputing − dedicated to image processing using ImageJ − is completed by a series of mini-games located in another CrazyBiocomputing web page [Link]. This is a good opportunity to practice with ImageJ and work/understand the various concepts described in the posts of this blog. Here are some explanations about how it works...