caa a22 4500 397503458 CHVBK 20180308164538.0 cr unu---uuuuu 161202e19950101xx s 000 0 eng 10.1093/oxfordjournals.rpd.a082540 doi 0144-8420 pii (NATIONALLICENCE)oxford-10.1093/oxfordjournals.rpd.a082540 Measurement of Wiener Spectra in Digital Systems [Elektronische Daten] [D.M. Marsh, P. Cooney, B.P. McMahon, J.F. Malone] The Wiener spectrum is an important tool used to assess the noise power of an image in the spatial frequency domain, and therefore a potentially useful index in the dose optimisation of X ray imaging systems. Many workers have reported on the measurement of Wiener spectra in the literature, however, there is little comparative work done on the relative performance of different imaging modalities using Wiener spectra. The performance of digital imaging systems using Wiener spectra is evaluated and measured spectra from different modalities compared, including ultrasound, digital subtraction angiography (DSA, vascular), a digital cardiac imaging system and nuclear medicine. Radiation Protection Dosimetry Marsh D.M. aut Cooney P. aut McMahon B.P. aut Malone J.F. aut Radiation Protection Dosimetry Oxford University Press 57/1-4(1995-01-01), 273-276 0144-8420 57:1-4<273 1995 57 rpd https://doi.org/10.1093/oxfordjournals.rpd.a082540 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1093/oxfordjournals.rpd.a082540 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Marsh D.M. aut NATIONALLICENCE 700 1- Cooney P. aut NATIONALLICENCE 700 1- McMahon B.P. aut NATIONALLICENCE 700 1- Malone J.F. aut NATIONALLICENCE 773 0- Radiation Protection Dosimetry Oxford University Press 57/1-4(1995-01-01), 273-276 0144-8420 57:1-4<273 1995 57 rpd Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford