Title :
Novel Adjacent Criterion Method for Improving Ultrasonic Imaging Spatial Resolution
Author :
Rahiman, Mohd Hafiz Fazalul ; Rahim, Ruzairi Abdul ; Rahim, Herlina Abdul ; Ayob, Nor Muzakkir Nor
Author_Institution :
Sch. of Mechatron. Eng., Univ. Malaysia Perlis, Arau, Malaysia
fDate :
6/1/2012 12:00:00 AM
Abstract :
In this letter, we present a novel approach for improving spatial resolution in ultrasonic tomography. The proposed technique modifies a Back-projection (BP) algorithm in reconstructing tomography images. We used 32-ultrasonic transducer on a liquid column to perform the imaging process. Two phantoms were used to evaluate the proposed technique and compared with BP technique. The results showed that the proposed technique improves the spatial resolution and exhibits more accurate tomograms.
Keywords :
acoustic tomography; backpropagation; image reconstruction; image resolution; phantoms; ultrasonic imaging; ultrasonic transducers; BP algorithm; adjacent criterion method; back-projection algorithm; liquid column; phantoms; tomography image reconstruction; ultrasonic imaging spatial resolution; ultrasonic tomography; ultrasonic transducer; Acoustics; Image reconstruction; Phantoms; Spatial resolution; Tomography; Transducers; Ultrasonic variables measurement; Spatial resolution; ultrasonic sensor; ultrasonic tomography;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2011.2177255
