O'Reilly logo

Image Reconstruction by Gengsheng Lawrence Zeng

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

1Basic principles of tomography

This is an introductory chapter that presents the fundamental concepts in tomography. It first defines what the tomography is and shows how a tomographic image can be obtained from its measurements using two simple examples. The concept of projection is then explained. Next, the filtered backprojection (FBP) image reconstruction method is introduced using a point source example. Finally, the concept of backprojection is discussed.

1.1Tomography

The Greek word tomos means a section, a slice, or a cut. Tomography is the process of imaging a cross section. For example, if you are given a watermelon and would like to see inside, the easiest way to do so is to cut it open (Figure 1.1). Clearly, this approach to obtain ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required