Abstract
Currently computerized tomography is being developed using ultrasound, NMR, microwave, rather than using X-ray. The necessity of using ultrasound is especially increasing for diagnistic image because ultrasound is less hamful than X-ray. Thi...
Abstract
Currently computerized tomography is being developed using ultrasound, NMR, microwave, rather than using X-ray. The necessity of using ultrasound is especially increasing for diagnistic image because ultrasound is less hamful than X-ray. This study is simulated with ultrasound for an single cylindrical test object radius 4λ, the refractive index approximately 0.05 and using the new mixed approroxiamtely method. The approxinmatation methed in C.T is a vary important factor in diagnostic image processing. One that I will propose is composed of merits selected of Born and Rytov approximation method. So the new mixed approximation is the one having leas errors than the Born and the Rytov approximation on frequency domain.
In this paper, the result of the new mixed approximation method is compared with that of the Born and the Rytov method is shown and the new method gets the good reconstruced object. So the new approximation method can be one of linear approximation methods which is comparable with the Rytov method.