Animation
Filtered Back Projection, One Projection at a Time
filtered back projection	What you are seeing is the reconstruction of a slice of a human brain by filtered back projection. A total of one hundred projections are made, back projected, and individually filtered. With a few projections, the object is blurry, but as more projections are added, it becomes clear that the original image is a human brain.

This reconstruction program was written by John Kaufold, a Biomedical Engineering PhD candidate at Boston University. (Used with permission)

For more information on this and other Medical Imaging topics, be sure to visit The Biology Project at http://www.biology.arizona.edu