Results 1 to 10 of about 32,203 (156)

Three-dimensional diffractive acoustic tomography [PDF]

Nature Communications
Acoustically probing biological tissues with light or sound, photoacoustic and ultrasound imaging can provide anatomical, functional, and/or molecular information at depths far beyond the optical diffusion limit.
Luca Menozzi, Tri Vu, Aidan J. Canning, Harshal Rawtani, Carlos Taboada, Marie Elise Abi Antoun, Chenshuo Ma, Jesse Delia, Van Tu Nguyen, Soon-Woo Cho, Jianing Chen, Theresa Charity, Yirui Xu, Phuong Tran, Jun Xia, Gregory M. Palmer, Tuan Vo-Dinh, Liping Feng, Junjie Yao   +18 more
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Temperature Field Reconstruction Method for Acoustic Tomography Based on Multi-Dictionary Learning [PDF]

Sensors, 2022
A reconstruction algorithm is proposed, based on multi-dictionary learning (MDL), to improve the reconstruction quality of acoustic tomography for complex temperature fields.
Yuankun Wei, Hua Yan, Yinggang Zhou
doaj   +2 more sources

Dynamic Reconstruction Algorithm of Three-Dimensional Temperature Field Measurement by Acoustic Tomography [PDF]

Sensors, 2017
Accuracy and speed of algorithms play an important role in the reconstruction of temperature field measurements by acoustic tomography. Existing algorithms are based on static models which only consider the measurement information.
Yanqiu Li, Shi Liu, Schlaberg H. Inaki
doaj   +2 more sources

Layer-Averaged Water Temperature Sensing in a Lake by Acoustic Tomography with a Focus on the Inversion Stratification Mechanism [PDF]

Sensors, 2021
Continuous sensing of water parameters is of great importance to fluid dynamic progress study in oceans, coastal areas and inland waters. The acoustic tomography technique can perform water temperature field measurements horizontally and vertically using
Shijie Xu, Zhao Xue, Xinyi Xie, Haocai Huang, Guangming Li   +4 more
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Measured Regional Division Optimization for Acoustic Tomography Velocity Field Reconstruction in a Circular Area [PDF]

Sensors
The acoustic tomography (AT) velocity field reconstruction technique has become a research hotspot in recent years due to its noninvasive nature, high accuracy, and real-time measurement advantages.
Yixiao Chen, Xinzhi Zhou, Jialiang Zhu, Chenlong Dong, Tao Xu, Hailin Wang   +5 more
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Simultaneous Reconstruction of Gas Concentration and Temperature Using Acoustic Tomography [PDF]

Sensors
Acoustic tomography utilizes sensor arrays to collect sound wave signals, enabling non-contact measurement of physical parameters within an area of interest.
Shuangling Liu, Ming Zhu, Meng Deng, Zesheng Hu, Zhuo Cheng, Xingshun He   +5 more
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Ray Statement of the Acoustic Tomography Problem [PDF]

Doklady Mathematics, 2022
Abstract The ray statement of the inverse problem of determining three unknown variable coefficients in the linear acoustic equation is studied. These coefficients are assumed to differ from given constants only inside some bounded domain.
Romanov V.
europepmc   +2 more sources

A Deep Learning Model for Detecting the Arrival Time of Weak Underwater Signals in Fluvial Acoustic Tomography Systems [PDF]

Sensors
The fluvial acoustic tomography (FAT) system relies on the arrival time of the system signal to calculate the parameters of the region. The traditional method uses the matching filter method to calculate the peak position of the received acoustic signal ...
Weicong Zheng, Xiaojian Yu, Xuming Peng, Chen Yang, Shu Wang, Hanyin Chen, Zhenxuan Bu, Yu Zhang, Yili Zhang, Lingli Lin   +9 more
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3D Large‐Scale Subwavelength‐Resolution Sound Sheet Tomography Based on an Active and Programmable Circular Meta‐Array [PDF]

Advanced Science
Tomography enables volumetric visualization of internal structures with high fidelity, which has transformed diverse fields of science and engineering.
Qiu‐De Zhang, Zi‐Bin Lin, Zhuo Chen, Zhao‐Hui Liu, Jin‐Lian He, Jun‐Jie Song, Long‐Sheng Zeng, Liang Zhou, Ming‐Yue Ding, Yu‐Gui Peng, Ming Yuchi, Xue‐Feng Zhu   +11 more
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Continuous Sensing of Water Temperature in a Reservoir with Grid Inversion Method Based on Acoustic Tomography System

Remote Sensing, 2021
The continuous sensing of water parameters is of great importance to the study of dynamic processes in the ocean, coastal areas, and inland waters. Conventional fixed-point and ship-based observing systems cannot provide sufficient sampling of rapidly ...
Haocai Huang, Shijie Xu, Xinyi Xie, Yong Guo, Luwen Meng, Guangming Li   +5 more
doaj   +1 more source