Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2012 Nov 6;7(11):e48261. doi: 10.1371/journal.pone.0048261

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2012 Agulleiro, Fernández

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

PMC Copyright notice

The reconstruction is progressively refined by minimizing the average error between the experimental and the calculated projections. (a) Calculation of projections from the volume at the current iteration. (b) Computation of the error with respect to the experimental projections. (c) Refinement of the volume by backprojection of the error. If and represents the current iteration, then denotes the volume reconstructed in the previous iteration. indicates that the volume generated in the previous iteration is taken into account to build the volume of the current iteration. In general, the volume is initialized to 0, that is, .

Inline graphic — The reconstruction is progressively refined by minimizing the average error between the experimental and the calculated projections. (a) Calculation of projections from the volume at the current iteration. (b) Computation of the error with respect to the experimental projections. (c) Refinement of the volume by backprojection of the error. If and represents the current iteration, then denotes the volume reconstructed in the previous iteration. indicates that the volume generated in the previous iteration is taken into account to build the volume of the current iteration. In general, the volume is initialized to 0, that is, .