Plane-Scanning Reflection-Diffraction Tomography

Lan, Chuntao; Flesher, Gail T.; Wade, G.

doi:10.1109/t-su.1985.31631

Cited by 4 publications

References 8 publications

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Recent advances in scanning tomographic acoustic microscopy

Chiao

Lee

1991

Int J Imaging Syst Tech

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We present the recent developments of the Scanning Tomographic Acoustic Microscope (STAM). The STAM was proposed as a method to achieve 3D imaging capability for the Scanning Laser Acoustic Microscope (SLAM). With the addition of a quadrature receiver, the complex scattered wave field can now be detected, and consequently the STAM is capable of subsurface holographic and tomographic imaging. The resolution improvement of the STAM can be attributed directly to the detection of the phase information and the image reconstruction technique. The STAM is sensitive to phase errors in the tomographic projections. In particular, the quadrature phase error and the initial phase error in the complex projections are critical to the tomographic reconstruction process. For multiple-angle tomography, high-precision projection registration and alignment become necessary. By obtaining solutions to these implementation problems, we have succeeded in obtaining images superior to the original SLAM images. In addition, quantitative ultrasonic imaging is possible with the STAM, and a method is presented to image the velocity parameter of simple specimens. With these capabilities, the STAM may become a useful tool for high-resolution subsurface nondestructive evaluation.

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Recent advances in scanning tomographic acoustic microscopy

Chiao

Lee

1991

Int J Imaging Syst Tech

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A Computational Study of Reconstruction Algorithms for Synthetic Aperture Diffraction Tomography: Interpolation Versus Interpolation-Free

1988

Acoustical Imaging

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Experimental investigation of a diffraction tomography technique in fluid ultrasonics

Duchêne

Lesselier

Tabbara

1988

IEEE Trans. Ultrason., Ferroelect., Freq. Contr.

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Qualitative ultrasonic imaging of cylindrical fluid targets is investigated by a diffraction tomography technique applied to experimental data. The principles of the image formulation are stated and an experimental setup is described. Experimental difficulties related to the short wavelength used and respective advantages in collecting the data, either with a mechanically scanned single transducer or with an electronically scanned array of transducers, are emphasized. Representative images of simply structured phantoms and of real biological bodies are obtained in spite of the small number of views available.

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Plane-Scanning Reflection-Diffraction Tomography

Cited by 4 publications

References 8 publications

Recent advances in scanning tomographic acoustic microscopy

Recent advances in scanning tomographic acoustic microscopy

A Computational Study of Reconstruction Algorithms for Synthetic Aperture Diffraction Tomography: Interpolation Versus Interpolation-Free

Experimental investigation of a diffraction tomography technique in fluid ultrasonics

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