Identification of Reflected, Scaled, Translated, and Rotated Objects From Their Radon Projections
Fawaz Ibrahim Hjouj, David W. Kammler · IEEE Transactions on Image Processing · 2008
In this paper, we present a method for identification of binary objects from a given set of radon projections. Given a suitably regular 2-D function f, we form a new function g from f by using the operations of reflection, scaling, translation, and rotation. We show how the radon projections of g are related to those of f and devise a procedure that can be used to determine the parameters from the radon projections of f and g. We illustrate this process using a family of block images that include common 7 x 5 pixel representations for the letters A, B,....., Z.