Ultrasonics最新文献_第5页

RFImageNet framework for segmentation of ultrasound images with spectra-augmented radiofrequency signals 利用频谱增强射频信号分割超声图像的 RFImageNet 框架

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2024-10-28 DOI: 10.1016/j.ultras.2024.107498

Zhun Xie , Jiaqi Han , Nan Ji , Lijun Xu , Jianguo Ma

{"title":"RFImageNet framework for segmentation of ultrasound images with spectra-augmented radiofrequency signals","authors":"Zhun Xie , Jiaqi Han , Nan Ji , Lijun Xu , Jianguo Ma","doi":"10.1016/j.ultras.2024.107498","DOIUrl":"10.1016/j.ultras.2024.107498","url":null,"abstract":"<div><div>Computer-aided segmentation of medical ultrasound images assists in medical diagnosis, promoting accuracy and reducing the burden of sonographers. However, the existing ultrasonic intelligent segmentation models are mainly based on B-mode grayscale images, which lack sufficient clarity and contrast compared to natural images. Previous research has indicated that ultrasound radiofrequency (RF) signals contain rich spectral information that could be beneficial for tissue recognition but is lost in grayscale images. In this paper, we introduce an image segmentation framework, RFImageNet, that leverages spectral and amplitude information from RF signals to segment ultrasound image. Firstly, the positive and negative values in the RF signal are separated into the red and green channels respectively in the proposed RF image, ensuring the preservation of frequency information. Secondly, we developed a deep learning model, RFNet, tailored to the specific input image size requirements. Thirdly, RFNet was trained using RF images with spectral data augmentation and tested against other models. The proposed method achieved a mean intersection over union (mIoU) of 54.99% and a dice score of 63.89% in the segmentation of rat abdominal tissues, as well as a mIoU of 63.28% and a dice score of 68.92% in distinguishing between benign and malignant breast tumors. These results highlight the potential of combining RF signals with deep learning algorithms for enhanced diagnostic capabilities.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"146 ","pages":"Article 107498"},"PeriodicalIF":3.8,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142561385","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrasonic backscattering measurement of hardness gradient distribution in polycrystalline materials 超声波反向散射测量多晶材料的硬度梯度分布

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2024-10-28 DOI: 10.1016/j.ultras.2024.107496

Changze Li, Ping Chen, Tong Fu, Xin Yu

{"title":"Ultrasonic backscattering measurement of hardness gradient distribution in polycrystalline materials","authors":"Changze Li, Ping Chen, Tong Fu, Xin Yu","doi":"10.1016/j.ultras.2024.107496","DOIUrl":"10.1016/j.ultras.2024.107496","url":null,"abstract":"<div><div>It is crucial to obtain the internal hardness distribution in polycrystalline materials to evaluate the mechanical performance of components and monitor their service life. Current methods, however, fail to meet the non-destructive evaluation needs for materials with hardness gradient distributions. This paper, based on the principle of grain boundary scattering of ultrasound in polycrystalline materials, combined with the Transverse-to-Transverse Singly-Scattered Response (T-T SSR) theory, proposes an ultrasonic SSR model adapted to hardness gradient distributions. The model elucidates the influence of hardness gradient variations and grain dispersion on ultrasonic scattering. Using DREAM.3D, seven different-scale polycrystalline volumes were constructed to assess the relevance of volume-weighted average grain size and spatial correlation of hardness gradient materials. Finally, induction quenching was applied to 40Cr to induce a gradient hardness distribution internally, followed by ultrasonic backscatter experiments. The results indicate that the theoretical model and the spatial variance of measured signals align well over a relatively long time window. For the specimen with minor curvature, the theoretical hardness distribution obtained by the model is accurate, with an average error of 2.55 % compared to destructive testing data. However, the results for the larger curvature reveal limitations in the model.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"146 ","pages":"Article 107496"},"PeriodicalIF":3.8,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142561386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Simulation and experimentation of nonlinear Rayleigh wave inspection of fatigue surface microcracks 疲劳表面微裂纹的非线性瑞利波检测模拟与实验。

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2024-10-28 DOI: 10.1016/j.ultras.2024.107500

Ne Liu , Shuyun Cheng , Jiaqi Fan , Ying Zhu , Ning Yang , Yongdong Pan

引用次数: 0

Analytical modelling and analysis of the meander-line coil EMATs 蜿蜒线线圈电磁流量计的分析模型和分析。

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2024-10-21 DOI: 10.1016/j.ultras.2024.107493

Runjie Yang , Zhichao Li , Shujuan Wang , Chuanliu Jiang

{"title":"Analytical modelling and analysis of the meander-line coil EMATs","authors":"Runjie Yang , Zhichao Li , Shujuan Wang , Chuanliu Jiang","doi":"10.1016/j.ultras.2024.107493","DOIUrl":"10.1016/j.ultras.2024.107493","url":null,"abstract":"<div><div>The meander-line coil electromagnetic acoustic transducer (EMAT) is widely used in the field of ultrasonic nondestructive testing due to its convenience to generate specific mode of guided waves. Some design methods of the meander-coil EMATs are developed in the frequency-wavenumber domain while others in the time–space domain. In this paper, a unified theoretical framework is developed by proposing an analytical model from the system perspective. Signal transfers between different physical fields in EMAT excitation, wave propagation and EMAT reception are represented as linear time–space-invariant systems. Taking the Rayleigh wave EMAT detection as an example, the analytical model for the transfer functions of these systems is established. The analytical model is experimentally verified by different Rayleigh wave detection techniques: the conventional EMAT, the spatial pulse compression (SPC) EMAT, temporal-spatial pulse compression (TSPC) EMAT and detection cases employing the same receiving EMAT. From the system perspective, the received signal of EMAT is interpreted as the response of the filter system to the input signal. It is found that the meander-coil EMAT can be regarded as the frequency domain expression during the detection. And the frequency domain expression plays different roles in different techniques.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"146 ","pages":"Article 107493"},"PeriodicalIF":3.8,"publicationDate":"2024-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142508938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multiple reflection wave detection method based on inversion of multilayer material transfer function 基于多层材料传递函数反演的多重反射波探测方法。

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2024-10-20 DOI: 10.1016/j.ultras.2024.107495

Hao Jiang , Chong chen , Xianwen Xue , Mengyuan Li , Bowei Chen

引用次数: 0

Defect localization in plate structures using the geometric phase of Lamb waves 利用 Lamb 波的几何相位进行板结构缺陷定位。

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2024-10-19 DOI: 10.1016/j.ultras.2024.107492

Guangdong Zhang , Tribikram Kundu , Pierre A. Deymier , Keith Runge

{"title":"Defect localization in plate structures using the geometric phase of Lamb waves","authors":"Guangdong Zhang , Tribikram Kundu , Pierre A. Deymier , Keith Runge","doi":"10.1016/j.ultras.2024.107492","DOIUrl":"10.1016/j.ultras.2024.107492","url":null,"abstract":"<div><div>Commonly used methods for defect localization in structures are based on velocity differences (VD) or amplitude ratio (AR) (or attenuation due to scattering) measured along different sensing paths between a reference system and a defective system. A high value on a sensing path indicates a higher probability of the presence of defect on that path. We introduce an alternative approach based on the newly developed topological acoustic (TA) sensing technique for localizing defects in plate structures using Lamb waves. TA sensing exploits changes in geometric phase of acoustic waves to detect perturbations in the supporting medium. This approach uses a geometric phase change – index (GPC-I), a measure of the geometry of the acoustic field averaged over a spectral domain, as detection metric in lieu of VD or AR. Calculations based on the finite element method (FEM) in Abaqus/CAE software verifies the effectiveness of the proposed GPC-I-based defect localization method. Randomly located defects on the surface of a plate are localized with higher sensitivity and accuracy, by the GPC-I method in comparison to VD or AR-based methods.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"145 ","pages":"Article 107492"},"PeriodicalIF":3.8,"publicationDate":"2024-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142508937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Linear pressure waves in mono- and poly-disperse bubbly liquids: Attenuation and propagation speed in slow and fast and evanescent modes 单分散和多分散气泡液体中的线性压力波：慢速、快速和蒸发模式的衰减和传播速度。

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2024-10-15 DOI: 10.1016/j.ultras.2024.107487

Tetsuya Kanagawa , Akihiro Nakamura

{"title":"Linear pressure waves in mono- and poly-disperse bubbly liquids: Attenuation and propagation speed in slow and fast and evanescent modes","authors":"Tetsuya Kanagawa , Akihiro Nakamura","doi":"10.1016/j.ultras.2024.107487","DOIUrl":"10.1016/j.ultras.2024.107487","url":null,"abstract":"<div><div>Using volumetric averaged equations from a two-fluid model, this study theoretically investigates linear pressure wave propagation in a quiescent liquid with many spherical gas bubbles. The speed and attenuation of sound are evaluated using the derived linear dispersion. Mono- and poly-disperse bubbly liquids are treated. To precisely describe the attenuation effect, some forms of bubble dynamics equations and temperature gradient models are employed. Focusing on the dissipative effect, we analyze the stop band that occurs in the linear dispersion relation. In the two-fluid model, even if the dissipation effect is considered, the inconvenience that the wavenumber diverges to infinity in the resonance frequency cannot be resolved. Additionally, the validity of terminating that wavenumber value in the middle of the frequency is demonstrated. To determine a linear dispersion relation that can exactly predict thermal conduction and acoustic radiation, wave propagation velocities and attenuation coefficients are compared with some experimental data and existing models. The results show that thermal conduction and acoustic radiation should be set appropriately to accurately predict the propagation velocity and attenuation except in the high frequency range, the phase velocity in the resonance frequency range, or the attenuation in the high frequency range.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"146 ","pages":"Article 107487"},"PeriodicalIF":3.8,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142508960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reconstruction of reflection ultrasound computed tomography with sparse transmissions using conditional generative adversarial network 利用条件生成对抗网络重建稀疏传输的反射超声计算机断层扫描。

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2024-10-15 DOI: 10.1016/j.ultras.2024.107486

Zhaohui Liu , Xiang Zhou , Hantao Yang , Qiude Zhang , Liang Zhou , Yun Wu , Quanquan Liu , Weicheng Yan , Junjie Song , Mingyue Ding , Ming Yuchi , Wu Qiu

{"title":"Reconstruction of reflection ultrasound computed tomography with sparse transmissions using conditional generative adversarial network","authors":"Zhaohui Liu , Xiang Zhou , Hantao Yang , Qiude Zhang , Liang Zhou , Yun Wu , Quanquan Liu , Weicheng Yan , Junjie Song , Mingyue Ding , Ming Yuchi , Wu Qiu","doi":"10.1016/j.ultras.2024.107486","DOIUrl":"10.1016/j.ultras.2024.107486","url":null,"abstract":"<div><div>Ultrasound computed tomography (UCT) has attracted increasing attention due to its potential for early breast cancer diagnosis and screening. Synthetic aperture imaging is a widely used means for reflection UCT image reconstruction, due to its ability to produce isotropic and high-resolution anatomical images. However, obtaining fully sampled UCT data from all directions over multiple transmissions is a time-consuming scanning process. Even though sparse transmission strategy could mitigate the data acquisition complication, image quality reconstructed by traditional Delay and Sum (DAS) methods may degrade substantially. This study presents a deep learning framework based on a conditional generative adversarial network, UCT-GAN, to efficiently reconstruct reflection UCT image from sparse transmission data. The evaluation experiments using breast imaging data in vivo show that the proposed UCT-GAN is able to generate high-quality reflection UCT images when using 8 transmissions only, which are comparable to that reconstructed from the data acquired by 512 transmissions. Quantitative assessment in terms of peak signal-to-noise ratio (PSNR), normalized mean square error (NMSE), and structural similarity index measurement (SSIM) show that the proposed UCT-GAN is able to efficiently reconstruct high-quality reflection UCT images from sparsely available transmission data, outperforming several other methods, such as RED-GAN, DnCNN-GAN, BM3D. In the experiment of 8-transmission sparse data, the PSNR is 29.52 dB, and the SSIM is 0.7619. The proposed method has the potential of being integrated into the UCT imaging system for clinical usage.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"145 ","pages":"Article 107486"},"PeriodicalIF":3.8,"publicationDate":"2024-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142475933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A physics-based acoustic emission energy method for mixed-mode impact damage prediction of composite laminates 基于物理的声发射能量法，用于复合材料层压板的混合模式冲击损伤预测

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2024-10-12 DOI: 10.1016/j.ultras.2024.107490

Jingjing He , Fan Yang , Haixu Wang , Xiaojun Sun , Yu Zhu , Yaokun Wang , Xuefei Guan

{"title":"A physics-based acoustic emission energy method for mixed-mode impact damage prediction of composite laminates","authors":"Jingjing He , Fan Yang , Haixu Wang , Xiaojun Sun , Yu Zhu , Yaokun Wang , Xuefei Guan","doi":"10.1016/j.ultras.2024.107490","DOIUrl":"10.1016/j.ultras.2024.107490","url":null,"abstract":"<div><div>In-service composite laminates are susceptible to impact-induced damage, which can substantially reduce its integrity and service life. The damage prediction remains a great challenge due to mixed damage modes and varying damage patterns. This study develops a novel acoustic emission (AE) energy method for predicting damage areas under three typical damage modes. Laboratory testing of composite laminate specimens subject to quasi-static indentation is performed in conjunction with in-situ AE monitoring to acquire AE data. By bridging two sets of energy formulations developed, namely, the one that correlates the damage area and the released strain energy of each damage mode and another that relates the released strain energy to the AE energy, an analytical model for predicting damage areas using AE energy components is derived. Proper signal procedure procedures are established to extract the energy components from AE monitoring data, and numerical and testing data are used to calibrate the model parameters. The effectiveness of the proposed model is further validated by comparing the prediction results of the damage areas with the actual damage areas of specimens tested under different indentation depths. The result indicates that the proposed AE energy method can yield reliable predictions of the damage area under mixed damage modes.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"145 ","pages":"Article 107490"},"PeriodicalIF":3.8,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142441913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Research on the fusion imaging method of sign coherence and time reversal for Lamb wave sparse array λ波稀疏阵列符号相干与时间反转融合成像方法研究

IF 3.8 2区物理与天体物理

Ultrasonics Pub Date : 2024-10-11 DOI: 10.1016/j.ultras.2024.107489

Liu-Jia Sun, Qing-Bang Han, Cheng Yin, Qi-Lin Jin, Kao Ge

{"title":"Research on the fusion imaging method of sign coherence and time reversal for Lamb wave sparse array","authors":"Liu-Jia Sun, Qing-Bang Han, Cheng Yin, Qi-Lin Jin, Kao Ge","doi":"10.1016/j.ultras.2024.107489","DOIUrl":"10.1016/j.ultras.2024.107489","url":null,"abstract":"<div><div>Time-reversal imaging struggles to detect plate-like structures due to interference from Lamb wave mode conversion and the processing demands, leading to less effective outcomes. This paper proposes a sign coherence factor and time reversal fusion (SCF-TR) imaging method based on amplitude and phase estimation. This method removes the coherence of array signals during signal reversal and refocusing. It reintroduces the sign coherence component to reduce interference from non-target scattered waves and partially overcome the constraints imposed by the Rayleigh criterion. The method allows imaging at a resolution smaller than the wavelength of Lamb and enhances the quality of the resulting images. In addition, a sparse array design utilizing the White Shark Optimisation Algorithm (WSO) is proposed to streamline the SCF-TR calculation process. This design utilizes sparse full matrix data to improve imaging efficiency. The experimental results show that for single blind hole defects, the SCF-TR method improves the array performance metrics and signal-to-noise ratio by 22.46% and 42.50%, respectively, compared to the TR method. For multiple asymmetric blind hole defects, when the defect size exceeds the resolution threshold, SCF-TR accurately reflects the position and morphology of defects smaller than the wavelength. When the defect size is below the resolution threshold, SCF-TR achieves super-resolution imaging. The sparse array designed using the White Shark Optimization algorithm demonstrates good sidelobe characteristics, effectively reducing sidelobe noise without reducing the array aperture. Moreover, the SCF-TR imaging time is reduced by approximately half while maintaining imaging accuracy.</div></div>","PeriodicalId":23522,"journal":{"name":"Ultrasonics","volume":"145 ","pages":"Article 107489"},"PeriodicalIF":3.8,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142441914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0