Abstract
The input signal to an x-ray imaging system is given1 by the quantity, α |X1-X2|, where α is the area of the spatial resolution element and X1 and X2 are the X-ray exposures at points 1 and 2 in the image plane. Accordingly for a signal with a given magnitude, there is a tradeoff in the values of α and |X1-X2| such that a signal with high spatial resolution (small α) and high'contrast (X2≪X1) may be quantitatively equivalent to a signal with low spatial resolution (large α) and low contrast (X2≲X1).
© 1986 Optical Society of America
PDF ArticleMore Like This
Rodney Shaw and Majid Rabbani
TuA2 Quantum-Limited Imaging and Image Processing (QLIP) 1986
H. H. Barrett
TuA1 Quantum-Limited Imaging and Image Processing (QLIP) 1986
Gordon J. Hurford, S. Thomas Megeath, David Palmer, and Thomas A. Prince
MD3 Quantum-Limited Imaging and Image Processing (QLIP) 1986