Estimation of layer thickness by the cost function optimization: phantom study

• Autorzy: Tasinkiewicz J. , Podhajecki J. , Wojcik J. , Falińska K. , Litniewski J.
• Języki publikacji: EN

Abstrakty

EN

The aim of this work is to present preliminary results of the layer thickness assessment method based on optimization approach. The developed method is based on a multilayer model structure. The measured acoustic signal reflected from the layer is compared with a simulated signal on the basis of a multilayer model. The cost function is defined as the difference between the reflected signal measured using pulse echo approach and the simulated signal. The thickness of the solid layer is the parameter which minimizes the cost function yielding desired solution. Minimization of the cost function is performed with the simulated annealing algorithm. The results obtained with the developed method using measurement data of a custom design model are compared with the reference value and the accuracy of the method is checked. The relative error of the thickness estimation is 1.44%.

Słowa kluczowe

EN

cortical bone thickness assessment; layered media; ultrasound attenuation

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2015
• Tom: Vol. 18
• Strony: 161--166
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Tasinkiewicz J.

• Ultrasound Department Institute of Fundamental Technological Research Polish Academy of Sciences, Pawińskiego 5b, 02-106 Warszawa, Poland

autor

Podhajecki J.

autor

Wojcik J.

autor

Falińska K.

autor

Litniewski J.

Bibliografia

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