2008
Two Aspects of Calibrating a 3D Ultrasonic Computed-Tomography System
FILIPIK, A.; J. JAN; Igor PETERLÍK; Dušan HEMZAL; R. JIRIK et al.Základní údaje
Originální název
Two Aspects of Calibrating a 3D Ultrasonic Computed-Tomography System
Autoři
FILIPIK, A.; J. JAN; Igor PETERLÍK; Dušan HEMZAL a R. JIRIK
Vydání
NEW YORK, 14TH NORDIC-BALTIC CONFERENCE ON BIOMEDICAL ENGINEERING AND MEDICAL PHYSICS, od s. 497-500, 4 s. 2008
Nakladatel
SPRINGER
Další údaje
Jazyk
angličtina
Typ výsledku
Stať ve sborníku
Obor
20600 2.6 Medical engineering
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Forma vydání
elektronická verze "online"
Odkazy
Označené pro přenos do RIV
Ano
Organizační jednotka
Přírodovědecká fakulta
ISBN
978-3-540-69366-6
ISSN
UT WoS
EID Scopus
Klíčová slova anglicky
Ultrasonic computed tomography; image reconstruction; computed calibration; ultrasonic transducers
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 24. 8. 2020 10:02, Mgr. Marie Novosadová Šípková, DiS.
Anotace
V originále
The paper concerns providing the auxiliary data for image reconstruction in ultrasonic computed tomography (USCT) by calibrating the measuring USCT system. Basically two aspects are considered: calibrating the individual transducers as to their transmitting and receiving properties concerns, and calibrating the geometry of the measuring system, i.e. providing the exact information on the individual transducer deviations from the expected precise positions (including the individual delays in signal processing that act similarly as to the image reconstruction concerns). We will concentrate primarily on the 3D generalization of the principle of individual transducer efficiency and directional characteristics calibration that appeared for 2D case in |3| and complement the information by overview on the other calibration aspects as well. The described methods, based on se. empty measurements (no measuring phantoms needed) have been tested by both extensive simulations and by first practical applications utilising real measurement data. The tests proved the feasibility of the approach and its robustness under difficult circumstances - i.e. imprecise initial estimates of the calibrated quantities and presence of non-negligible noise in the measurements.