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# Presampling, algorithm factors, and noise: considerations for CT in particular and for medical imaging in general.

@article{Kachelriess2005PresamplingAF, title={Presampling, algorithm factors, and noise: considerations for CT in particular and for medical imaging in general.}, author={Marc Kachelriess and Willi A. Kalender}, journal={Medical physics}, year={2005}, volume={32 5}, pages={1321-34} }

- Published 2005 in Medical physics

CT scanners acquire noisy data at discrete sample positions. Typically, a convention of how to continue these data from discrete integer positions to the continuous domain must be applied during processing. We study the properties of three typical one-dimensional spatial domain interpolation algorithms in terms of a cost or quality factor Q. This figure of merit Q is a function of spatial resolution, data noise, and dose and is used to optimize detector design. Spatial resolution R is defined… CONTINUE READING