19,277 resources related to Ultrasonic imaging
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To promote awareness, understanding, advancement and application of ocean engineering and marine technology. This includes all aspects of science, engineering, and technology that address research, development, and operations pertaining to all bodies of water. This includes the creation of new capabilities and technologies from concept design through prototypes, testing, and operational systems to sense, explore, understand, develop, use, and responsibly manage natural resources.
The conference program will consist of plenary lectures, symposia, workshops andinvitedsessions of the latest significant findings and developments in all the major fields ofbiomedical engineering.Submitted papers will be peer reviewed. Accepted high quality paperswill be presented in oral and postersessions, will appear in the Conference Proceedings and willbe indexed in PubMed/MEDLINE & IEEE Xplore
The IEEE International Symposium on Biomedical Imaging (ISBI) is the premier forum for the presentation of technological advances in theoretical and applied biomedical imaging.ISBI 2019 will be the 16th meeting in this series. The previous meetings have played a leading role in facilitating interaction between researchers in medical and biological imaging. The 2019 meeting will continue this tradition of fostering cross fertilization among different imaging communities and contributing to an integrative approach to biomedical imaging across all scales of observation.
The International Conference on Image Processing (ICIP), sponsored by the IEEE SignalProcessing Society, is the premier forum for the presentation of technological advances andresearch results in the fields of theoretical, experimental, and applied image and videoprocessing. ICIP 2019, the 26th in the series that has been held annually since 1994, bringstogether leading engineers and scientists in image and video processing from around the world.
2019 IEEE International Conference on Industrial Technology (ICIT)
The scope of the conference will cover, but will not be limited to, the following topics: Robotics; Mechatronics; Industrial Automation; Autonomous Systems; Sensing and artificial perception, Actuators and Micro-nanotechnology; Signal/Image Processing and Computational Intelligence; Control Systems; Electronic System on Chip and Embedded Control; Electric Transportation; Power Electronics; Electric Machines and Drives; Renewable Energy and Smart Grid; Data and Software Engineering, Communication; Networking and Industrial Informatics.
The Transactions on Biomedical Circuits and Systems addresses areas at the crossroads of Circuits and Systems and Life Sciences. The main emphasis is on microelectronic issues in a wide range of applications found in life sciences, physical sciences and engineering. The primary goal of the journal is to bridge the unique scientific and technical activities of the Circuits and Systems ...
Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.
Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronics devices, nanoscale devices, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical devices, quantum devices and electron tubes.
Both general and technical articles on current technologies and methods used in biomedical and clinical engineering; societal implications of medical technologies; current news items; book reviews; patent descriptions; and correspondence. Special interest departments, students, law, clinical engineering, ethics, new products, society news, historical features and government.
Theory and application of fuzzy systems with emphasis on engineering systems and scientific applications. (6) (IEEE Guide for Authors) Representative applications areas include:fuzzy estimation, prediction and control; approximate reasoning; intelligent systems design; machine learning; image processing and machine vision;pattern recognition, fuzzy neurocomputing; electronic and photonic implementation; medical computing applications; robotics and motion control; constraint propagation and optimization; civil, chemical and ...
2007 8th International Conference on Electronic Measurement and Instruments, 2007
The resolution problem of welding seam ultrasonic imaging system is studied in this paper, a triple-stage stepwise solutions is proposed, the measured ultrasonic signal is processed by super-resolution algorithm based on wavelet transform, signal processing result shows: the method is feasible to improve image quality of ultrasound imaging equipment and enhances its ability to identify subtle defects in welding seam. ...
2015 Transducers - 2015 18th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS), 2015
In this paper, we demonstrate a wireless chemical sensing scheme using ultrasonic imaging of a microbubble-functionalized hydrogel, which we call “bubblegel.” By incorporating oxygen microbubbles into a hydrogel, its volume transition, which is responsive to its chemical microenvironment, can be wirelessly monitored by ultrasonic imaging; measuring volume directly or measuring the reflected acoustic intensity from the surface of the bubblegel. ...
2009 International Conference on Measuring Technology and Mechatronics Automation, 2009
Taking girth weld of hydraulic cylinder used in coal mine as object, the principle of ultrasonic testing and method of ultrasonic scan imaging for angle probe are studied, the definitions of ultrasonic scan image for angle probe are given, and the corresponding relationship between scan image and artificial defect in the sample is analyzed in this paper. Then, the mathematical ...
2016 IEEE Far East NDT New Technology & Application Forum (FENDT), 2016
In this paper, a multi-aperture synthetic focusing technique based on virtual source is studied, which improves the lateral resolution and depth of the ultrasonic imaging with respect to the single array dynamic synthetic aperture focusing technique (SAFT). It only needs to store the N numbers data for the A scan line, and the complexity of the algorithm is greatly reduced ...
2017 Far East NDT New Technology & Application Forum (FENDT), 2017
Oblique crack is one of the common defects in industrial ultrasonic testing. The angle probe can detect oblique defects more efficiently. The path of the ultrasonic wave in the multi-layer medium can be calculated by the ray tracing technique. Then it can be used in synthetic aperture imaging algorithm for improving ultrasonic imaging resolution. In this paper, the new forward ...
ICASSP 2010 - Radar Imaging of Building Interiors
Harrison H. Barrett
Episode 2 - Albert Theuwissen - Chip Chat Podcast
IMS 2015: Robert H. Caverly - Aspects of Magnetic Resonance Imaging
Imaging Human Brain Function with Simultaneous EEG-fMRI - IEEE Brain Workshop
The Fundamentals of Compressive Sensing, Part I: Introduction
IEEE Medal for Innovations in Healthcare Technology - Thomas F. Budinger - 2018 IEEE Honors Ceremony
CPIQ Update and the Case for Image Quality Standards in Automotive
Phase Retrieval with Application to Optical Imaging
Abbas El Gamal accepts the IEEE Richard W. Hamming Medal - Honors Ceremony 2016
WIE ILC 2015: Leadership in Todays Tech Industry a Keynote with Intel CEO Brian Krzanich
ISEC 2013 Special Gordon Donaldson Session: Remembering Gordon Donaldson - 4 of 7 - MRI at 130 Microtesla
The European Startup Scene - Jose Pozo - IPC 2018
From THz imaging to millimeter-wave stimulation of neurons: Is there a killer application for high frequency RF in the medical community? (RFIC 2015 Keynote)
Brooklyn 5G 2016: Dr. Partho Sengupta on Mobile Health Biomedical Imaging
Ignite! Session: Bill Moses
Ultrafast Lasers for Multi-photon Microscopy - Plenary Speaker: Jim Kafka - IPC 2018
How Facial Analysis Technology Can Help Children with Genetic Disorders - IEEE Region 4 Technical Presentation
ISEC 2013 Special Gordon Donaldson Session: Remembering Gordon Donaldson - 5 of 7 - SQUID Instrumentation for Early Cancer Diagnostics
The resolution problem of welding seam ultrasonic imaging system is studied in this paper, a triple-stage stepwise solutions is proposed, the measured ultrasonic signal is processed by super-resolution algorithm based on wavelet transform, signal processing result shows: the method is feasible to improve image quality of ultrasound imaging equipment and enhances its ability to identify subtle defects in welding seam. Moreover, the algorithms is under further improving and enhancing in ultrasonic image.
In this paper, we demonstrate a wireless chemical sensing scheme using ultrasonic imaging of a microbubble-functionalized hydrogel, which we call “bubblegel.” By incorporating oxygen microbubbles into a hydrogel, its volume transition, which is responsive to its chemical microenvironment, can be wirelessly monitored by ultrasonic imaging; measuring volume directly or measuring the reflected acoustic intensity from the surface of the bubblegel. Here a bubblegel fabricated with pH-sensitive poly (methacrylic acid-co- acrylamide) hydrogel is investigated in vitro. The sensor shows a sensitivity of 19.49 gray-scale intensity/pH and a resolution of 0.25 pH unit in the linear response region (between pH 4 and 6). It is expected that the concept can be adapted to hydrogels sensitive to other stimuli (e.g., glucose, biomarkers, etc.).
Taking girth weld of hydraulic cylinder used in coal mine as object, the principle of ultrasonic testing and method of ultrasonic scan imaging for angle probe are studied, the definitions of ultrasonic scan image for angle probe are given, and the corresponding relationship between scan image and artificial defect in the sample is analyzed in this paper. Then, the mathematical models of ultrasonic B-scan and C-scan imaging for artificial defect are established. Moreover, the experimental verification is carried out by using the ultrasonic imaging testing system. The results show that ultrasonic scan images are identical with description of mathematical models. And these lay a good foundation for locating, quantitative, and qualitative analysis of flaws.
In this paper, a multi-aperture synthetic focusing technique based on virtual source is studied, which improves the lateral resolution and depth of the ultrasonic imaging with respect to the single array dynamic synthetic aperture focusing technique (SAFT). It only needs to store the N numbers data for the A scan line, and the complexity of the algorithm is greatly reduced compared with the full focus technology (TFM) with the maintenance of image quality. Using Field II simulation and Multi2000 device experiment results show that compared with the single element dynamic synthetic aperture technology, virtual source multi-aperture synthetic focusing ultrasonic technique (VS- MSAFT) effectively improves the lateral resolution and depth of permeation, furthermore to improve the quality of ultrasound imaging.
Oblique crack is one of the common defects in industrial ultrasonic testing. The angle probe can detect oblique defects more efficiently. The path of the ultrasonic wave in the multi-layer medium can be calculated by the ray tracing technique. Then it can be used in synthetic aperture imaging algorithm for improving ultrasonic imaging resolution. In this paper, the new forward interpretation algorithm is used to image the internal oblique crack. The better result is shown in comparing with the traditional SAFT algorithm for straight probe.
We have designed and implemented an ultrasonic imaging research platform that performs all signal processing, including beamforming and image processing, using software on a GPU. An operating software is developed on a PC that can control RF data acquisition hardware to accommodate ultrasound images of various formats. Beamforming methods that include conventional scan line based imaging, scan line-based two-way dynamic focusing imaging, plane wave imaging, synthetic plane wave imaging, defocused transmission imaging, multi-beam scan line imaging, and color Doppler imaging are implemented by CUDA which runs on a GPU. Depending on the transmit and receive mode, a variety of experimental data acquisition conditions and various filter parameters can be changed in real time by a graphical user interface, and the RF data can be stored in a hard disk without a limit on the number of frames. Since the software for operation and signal processing can be flexibly changed, the developed system is a very useful research platform for ultrasound image acquisitions. We have used a GeForce GTX 980 (NVIDIA) desktop graphics card with a clock frequency of 1.126 GHz and 4 GB memory and a PC with an Intel Core i7-5820K 3.3-GHz CPU and a system memory of 16 GB under 64-bit Windows 7 along with an analog front-end capable of transmitting 128 channels and receiving 64 channels, obtaining images using a 5-MHz, 128-channel linear array probe.
In order to reduce the underwater ultrasonic image speckles and to enhance the image characteristics, an anisotropic diffusion model is established based on the wavelet transform in this paper. At the same time, it also provides the steps of the algorithmic architecture and analyzes the key links of the model during its application. Two-check experiments have been done using simulation data and real underwater ultrasonic image respectively. In experiment a compare research for underwater ultrasonic image has been done using the method and other traditional methods. After performing the WLAD-model-based image speckle reduction and coherence enhancement to the underwater ultrasonic image, we find that this algorithm has the ability to remove the image speckles and enhance the edges. This algorithm can well be applied to removing the speckles and enhancing the edges in the underwater ultrasonic image.
The paper presents chosen results obtained during the investigation of welded joints (laser, spot and friction) tested using acoustic microscopy method. Detection of welds properties and the defects strongly depends on ultrasonic transducer's parameters. For the purpose of this research a prototype hardware setup was built - enabling evaluation of various types of ultrasonic probes. The system can be easily adjusted to the geometry of an object and is well equipped with appropriate software for the analysis and processing of images such as B-scan or C-scan. The setup enables determination of welds geometry, in particular the depth of the weld penetration in some cases.
Adaptive beamforming outperforms its non-adaptive counterpart in that it is capable of achieving a narrower main lobe and suppressing interference. It, however, calls for intensive computations to obtain the weighting factors. In this paper, we present an MVDR (minimum variance directionless response) based adaptive beamformer design for ultrasound imaging and implement the design in an FPGA platform. An efficient matrix inversion computing scheme, which can reduce the complexity by an order, is first developed to facilitate real time operations. Simulation results indicate the performance degradation due to this simplification measure is negligible. A linear systolic array design is further devised to support highly concurrent and pipelined computations. Finally, the design is implemented in a Xilinx Vertex XC7z045ffg900-2 FPGA platform. The working frequency can reach 98 MHz, and the MVDR coefficients can be updated every 64 clock cycles. For the entire ultrasound system, the proposed design can support a 64 lines by 512 pixels scanning at a frame rate of 20fps.
Liquid metal coolants are being considered in several designs of Gen IV nuclear power plants. To enable safe operation, methods of the reactor vessel interior imaging must be set up. In this paper we consider the development of the ultrasonic technique allowing visualisation in liquid Pb/Bi (lead-bismuth eutectic) alloy. We propose a computer model which makes possible computation of signals reflected by submerged in liquid Pb/Bi stainless steel components with a complicated geometry and arbitrary orientation in space. Approximation of the inspected objects with planar triangular elements was used. The simulations show that with this model objects of complicated shapes can be identified and their parameters estimated.
To establish a standard set of letter symbols for quantities used in the science and technology of acoustics: also to establish standard abbreviations for a number of acoustical levels and related measures that are in common use. The science and technology of acoustics include sound, ultrasound, and infrasound in all media: gases, especially air; liquids, especially water; and solids are ...