Acoustical Imaging

Front Matter....Pages i-xvi Ultrasonic Theraphy and Imaging in Ophthalmology....Pages 1-17 Resolution Limits of Acoustical Echo Systems....Pages 19-31 The Acoustic Response of a Sphere in a Two-Layer Half-Space....Pages 33-42 The Banlimited Pulse from a Dynamite Source in an Elastic Medium....Pages 43-50 Changes in Seismic Pulse Forms Due to Diffraction Effects....Pages 51-52 Seismic Analysis of Thin Beds Aided by 3D Physical Model Experiments....Pages 53-67 Resolution in Sonar Systems — A Review....Pages 69-83 Experience with Long Streamer in Seismic Exploration....Pages 85-97 Aspects of Spatial Resolution for Long-Range, Low-Frequency Imgaing of the Sea Floor....Pages 99-109 Acoustical Surveying of Porous Soils....Pages 111-122 Reconstruction of One-Dimensional Inhomogeneities in Elastic Modulus and Density from Measurements of Acoustic Reasonances....Pages 123-132 Application of the Phase Closure Technique to Passive Acoustic Imaging Through Inhomogeneous Media....Pages 133-140 Practical Aspects of Spatial Resolution as Applied to Seismic Imaging....Pages 141-141 Angular Spectrum Decomposition: Improving the Resolution....Pages 143-153 Spatial Resolution of Migration Algorithms....Pages 155-168 Ray Tracing and Seismic Modeling....Pages 169-186 Numerically Efficient Full Wavefield Approach to Synthetic Seismogram Computation....Pages 187-198 Well-Resolved and Poorly-Resolved Features in Seismic Reflection Tomography....Pages 199-200 Resolution Limits in Inversion by Parameter Estimation....Pages 201-206 Resolution Enhancement of Processed Seismic Data Using Prior Weighting Functions....Pages 207-219 Scanned Microscopy Techniques....Pages 221-236 Imaging with Holosaft....Pages 237-245 Recovery of Ultrasonic Impulse Response by Spectral Extrapolation....Pages 247-257 Numerical Performance of the Schur Algorithm in Seismic Inversion and Continuous-Time Prediction Problems....Pages 259-271 Time Domain Diffraction Tomography....Pages 273-281 Generalized Tomography as a Unified Approach to Linear Inverse Scattering: Theory and Experiment....Pages 283-294 Image Reconstruction Fidelity Using the Born and Rytov Approximations....Pages 295-304 Ambiguity Functions for Diffraction Tomography Using Back-and- Forth Propagation....Pages 305-317 Image Reconstruction for Acoustic Tomography Using Hexagonal Arrays....Pages 319-328 Optimal Observation Angles for Planar Tomography in Stam System....Pages 329-342 Acoustic and Thermal Wave Microscopy....Pages 343-360 Spatial Resolution of Thermal-Wave and Thermoacoustic Microscopes....Pages 361-365 Ultrasonic Waveforms in Metal Plates Using Laser Generation and Emat Detection....Pages 367-376 Spatial Resolution of Subsurface Structure in Photothermal Imaging....Pages 377-385 Toward Quantitative Imaging with the Acoustic Microscope....Pages 387-396 Diagnostic Ultrasound: History, Transducers, Artefacts and New Applications....Pages 397-403 Speckle Reduction in Pulse-Echo Images by Using Phase Insensitive Summation and Multiplicative Techniques....Pages 405-412 Limited Angle Reflection Mode Computerized Tomography....Pages 413-424 Combined Shear-Compression Ultrasound Reflection Tomography....Pages 425-436 Acousto-Optic Deconvolution for Real-Time Echography....Pages 437-445 Prior Inverse Filtering for High-Resolution Pulse-Echo Images....Pages 447-458 Attenuation Correction Using Mellin Transform....Pages 459-469 Two-Dimensional Wiener Inverse Filtering in Echographic Imaging: Possibilities and Restrictions....Pages 471-477 Spatial Resolution in Ultrasonic Pulse Echo Texture Analysis....Pages 479-479 Texture in B-Mode Echograms: A Simulation Study of the Effects of Diffraction and of Scatterer Density on Gray Scale Statistics....Pages 481-485 Ultrasonic Imaging Using the Instantaneous Frequency of Pulse-Echo Signals....Pages 487-496 Theory of Q — Profiling....Pages 497-504 Ultrasonic Tissue Characterization Imaging....Pages 505-505 Modeling of Elastic Wave Phenomena Near a Plane Interface....Pages 507-519 Propagation of Transient Acoustic Waves in Lossy and Lossless Media....Pages 521-531 Diffraction Impulse Response of Non-Planar Transducers....Pages 533-546 Ultrasonic Defect Positioning by Non-Linear Least Squares Curve Fitting....Pages 547-558 A High Spatial Resolution Digital System for Ultrasonic Imaging....Pages 559-572 Imaging of Complex Structures by 3D-Migration Techniques....Pages 573-574 1 MHz Ultrasonic Transducer Operating in Air....Pages 575-584 Shallow Prospecting on Land by Means of a Novel Electroacoustical P-Wave Pulse Generator....Pages 585-593 New Nonlinear Parameter Imaging CT System Using a Parametric Acoustic Array....Pages 595-604 Mathematical Modeling of an Ultrasonic Transmission Imaging System Applied to Image Restoration....Pages 605-615 Phase Tomography, Velocity and Temperature Measurement....Pages 617-628 Transient Fields from Focused Acoustic Waves....Pages 629-633 Time — Domain Analysis of Acoustic Wave Propagation, Diffraction And Radiation....Pages 635-638 The Diffracted Transient Field of the Rectangular Piston in Loss-Less and Absorbing Media....Pages 639-642 Acoustic Emission Structure-Borne Noise Measurements on Aircraft During Flight....Pages 643-648 Practical Resolution Limitations of Scanning Acoustic Microscopy....Pages 649-652 Transmission Thermoacoustic Imaging Without Contact....Pages 653-655 Range Resolution Improvement with a New Signal Processor Implementing a Fast Kalman Estimator....Pages 657-660 Display of Ultrasonograms on a Liquid Crystal TV and a Fluorescent Vacuum Tube....Pages 661-663 Ultrasonic Biopsy Apparatus....Pages 665-667 The Influence of Ultrasonic Probe Design and Construction on Spatial Resolution....Pages 669-670 A Versatile Digital Scan Converter for High Quality Imaging....Pages 671-674 Study and Realization of Some Annular Array Transducers for Ultrasound Imaging Systems....Pages 675-678 Spatial Resolution of the Scanning Acoustic Microscope for Subsurface Imaging of Samples....Pages 679-684 Wide Angle Electronic Sector Scanning with Curved Arrays....Pages 685-688 High Resolution Sampled Phase-Delay Sonar Beamformer....Pages 689-693 One-Dimensional Inverse Acoustic Scattering for Lossy Media....Pages 695-698 Comparison of Algorithms for High Resolution Deconvolution of Array Beamforming Output....Pages 699-702 Application of Acoustical Holography to Nonstationary Random Processes....Pages 703-706 Pattern Recognition Application in Underwater Acoustics using Acoustical Holography....Pages 707-710 Holographic Imaging with Elastodynamic Waves....Pages 711-714 Inverse Filter Design for Holographic Imaging Systems with Small Apertures....Pages 715-718 Acoustic Impedance Tomography: Two Reconstruction Procedures....Pages 719-723 The Influence of the PSF on Reconstructed B-Scan Images....Pages 725-728 The Relation between Super-Resolution and a Priori Information in Probabilistic Inverse Scattering....Pages 729-732 Derivation of a Fast Kalman Filter for High Resolution B-Scan Imaging....Pages 733-736 Towards High-Resolution Ultrasound Computerized Tomography....Pages 737-740 Theoretical and Numerical Results on Scattering from Soft Cylinders with Implications in Diffraction Tomography....Pages 741-748 Tomographic Image Reconstruction from Holographic B-Scan Signal....Pages 749-752 Applications of the Double Frequency Technique in Bubble Sizing and Pressure Measurements in Fluids....Pages 753-755 High Resolution Ultrasonic Tissue Characterization....Pages 757-760 A New Method for the Analysis of the Frequency Dependence of the Backscattering Coefficient in Tissue-Like Media....Pages 761-764 Optical-Digital Joint Fourier Transform Classification of Liver Echotexture....Pages 765-768 Sizing of Defects in Steel Constructions by Ultrasound....Pages 769-769 Soft Tissue Movement Information in Ultrasonic M-Mode Images....Pages 771-774 Underwater Imaging of Cracks in Concrete....Pages 775-779 Back Matter....Pages 781-801