Compensation of Linearization Approximation Error in Acoustic Inverse Scattering Problem : Quantitative Reconstruction of Attenuation and Sound Speed Images
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概要
- 論文の詳細を見る
For the realization of the acoustic parameter quantitative reconstruction of biological tissues by ultrasonic diffraction tomography, the author recently developed the backward propagation Rytov approximation to overcome the limitation of the weak scattering condition of tissuelike objects. A sound speed image with sufficient quantitative precision was realized. The problem, however, was that the precision of the attenuation image was limited when the sound speed contrast of the object was large. In this paper, a method for compensating the weak scattering approximation error is presented so that a compatible reconstruction of both sound speed and attenuation images can be realized. From numerical verification, the precision of the attenuation image after compensation is verified to be more superior than that before compensation.
- 社団法人応用物理学会の論文
- 1999-06-15
著者
-
山田 晃
東京農工大学生物システム応用科学府
-
YAMADA Akira
Graduate School of Bio-Applications & Systems Engineering, Tokyo University of Agriculture and Techn
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