Title :
Calibration in circular ultrasound tomography devices
Author :
Parhizkar, Reza ; Karbasi, Amin ; Vetterli, Martin
Author_Institution :
Sch. of Comput. & Commun. Sci., Ecole Polytech. Fed. de Lausanne (EPFL), Lausanne, Switzerland
Abstract :
We consider the position calibration problem in circular tomography devices, where sensors deviate from a perfect circle. We introduce a new method of calibration based on the time-of-fiight measurements between sensors when the enclosed medium is homogeneous. Bounds on the reconstruction errors are proven and results of simulations mimicking a scanning device are presented.
Keywords :
acoustic tomography; calibration; image sensors; ultrasonic imaging; ultrasonic measurement; ultrasonic transducers; circular ultrasound tomography device calibration; position calibration problem; reconstruction error; scanning device; simulation mimicking; time-of-fiight measurement; Calibration; Estimation; Noise; Sensors; Tomography; Ultrasonic imaging; Ultrasonic variables measurement; Calibration; Matrix Completion; Multi-dimensional Scaling; Ultrasound Tomography;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on
Conference_Location :
Prague
Print_ISBN :
978-1-4577-0538-0
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2011.5946462
