Design of an Acoustical Imaging Operator Based on the Singular Value Decomposition Method
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概要
- 論文の詳細を見る
A new imaging operator has been developed for acoustical imaging using a 2ch m-sequence encoding array transducer. The new imaging operator has the ability to correct the poor orthogonal property of a transfer matrix. Moreover, images with many image points have been reconstructed by the new imaging operator. The new imaging operator has been composed on the basis of the singular-value decomposition (SVD) of the transfer matrix in the frequency domain. Characteristics of the new imaging operator are discussed by simulating the two-dimensional point spread functions (2-D PSFs). An image with a high dynamic range was obtained for a single object on the sampling image points by the method. Moreover, the method was able to reconstruct the image of the existing object outside the sampling image points.
- 社団法人応用物理学会の論文
- 1994-05-30
著者
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Koyama K
Toshiba Corp. Yokohama Jpn
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Koyama Kiyohito
Faculty Of Engineering Yamagata University
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Minagawa Keiji
Faculty Of Engineering Yamagata University
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Murata Y
Osaka Prefectural College Of Technology
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Koyama K
Faculty Of Engineering Yamagata University
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TAMURA Yasutaka
Faculty of Engineering, Yamagata University
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MURATA Yorinobu
Faculty of Engineering, Yamagata University
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