| The Fourier slice theorem for ultrasonic reflectivity tomography and the correction to the effect caused by curvature of integral lines |
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| 引用本文： | LAN Congqing and CHEN Yanhua Wuhan Institute of Physics,Academia Sinica,Wuhan 430071)with the Institute of Acoustics,Academia Sinica.. The Fourier slice theorem for ultrasonic reflectivity tomography and the correction to the effect caused by curvature of integral lines[J]. 声学学报：英文版, 1993, 0(1) |
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| 作者姓名： | LAN Congqing and CHEN Yanhua Wuhan Institute of Physics Academia Sinica Wuhan 430071)with the Institute of Acoustics Academia Sinica. |
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| 作者单位： | LAN Congqing and CHEN Yanhua Wuhan Institute of Physics，Academia Sinica，Wuhan 430071 |
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| 基金项目： | The project is supported by National Natural Foundation of China |
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| 摘 要： | For ultrasonic reflective tomographic imaging of differenttransmitter-receiver mode,we demonstrate that the Fourier slice theorem canbe used when the distance between the transducer and origin becomes muchlarger than the object to be reconstructed.Iterative reconstruction formulabased on the Fourier slice theorem is proposed for the case in which theparaxial approximation holds.The effect caused by the curvature of integrallines may be eliminated iteratively and better reconstructed images can be ex-pected.
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The Fourier slice theorem for ultrasonic reflectivity tomography and the correction to the effect caused by curvature of integral lines |
| |
| LAN Congqing and CHEN Yanhua Wuhan Institute of Physics,Academia Sinica,Wuhan )with the Institute of Acoustics,Academia Sinica.. The Fourier slice theorem for ultrasonic reflectivity tomography and the correction to the effect caused by curvature of integral lines[J]. Chinese Journal of Acoustics, 1993, 0(1) |
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| Authors: | LAN Congqing CHEN Yanhua Wuhan Institute of Physics Academia Sinica Wuhan )with the Institute of Acoustics Academia Sinica. |
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| Affiliation: | LAN Congqing and CHEN Yanhua Wuhan Institute of Physics,Academia Sinica,Wuhan 430071)with the Institute of Acoustics,Academia Sinica. |
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| Abstract: | For ultrasonic reflective tomographic imaging of different transmitter-receiver mode, we demonstrate that the Fourier slice theorem can be used when the distance between the transducer and origin becomes much larger than the object to be reconstructed. Iterative reconstruction formula based on the Fourier slice theorem is proposed for the case in which the paraxial approximation holds. The effect caused by the curvature of integral lines may be eliminated iteratively and better reconstructed images can be expected. |
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| Keywords: | Acoustic tomography Filtering method. |
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