Sensitivity analysis of the Tikhonov regularization to the initial guess in the elastography inverse problem
عنوان مقاله: Sensitivity analysis of the Tikhonov regularization to the initial guess in the elastography inverse problem
شناسه ملی مقاله: ICBME19_079
منتشر شده در نوزدهمین کنفرانس مهندسی پزشکی ایران در سال 1391
شناسه ملی مقاله: ICBME19_079
منتشر شده در نوزدهمین کنفرانس مهندسی پزشکی ایران در سال 1391
مشخصات نویسندگان مقاله:
Atefeh Aghajani Koopaei - School of Mechanical Engineering Iran University of Science and Technology
Mohammad Haghpanahi - School of Mechanical Engineering Iran University of Science and Technology
خلاصه مقاله:
Atefeh Aghajani Koopaei - School of Mechanical Engineering Iran University of Science and Technology
Mohammad Haghpanahi - School of Mechanical Engineering Iran University of Science and Technology
Elastography is a method to determine the elasticity properties of the soft tissue. The main part of this method is the solution of the inverse elasticity problem. To solve the inverse problem using regularization method is unavoidable. In this study Gauss- newton method and Tikhonov regularization are used to solve the inverse problem. Sensitivity analysis of the solution to the initial guess showed that selection the close initial guess to the final goal cause to semi-convergence manner. In this situation choice of stopping criterion will be very important.
کلمات کلیدی: elastography; inverse elasticity problem; Tikhonov regularization;sensitivity analysis ; initial guess
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/229167/