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相关论文: Terahertz Spatio-Temporal Deep Learning Computed T…

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Terahertz (THz) imaging is one of the hotspots in the field of optics, where the depth information retrieval is a key factor to restore the three-dimensional appearance of objects. Impressive results for depth extraction in visible and…

光学 · 物理学 2024-07-09 Mingjun Xiang , Hui Yuan , Kai Zhou , Hartmut G. Roskos

Visualizing information inside objects is an ever-lasting need to bridge the world from physics, chemistry, biology to computation. Among all tomographic techniques, terahertz (THz) computational imaging has demonstrated its unique sensing…

图像与视频处理 · 电气工程与系统科学 2022-05-03 Weng-Tai Su , Yi-Chun Hung , Po-Jen Yu , Chia-Wen Lin , Shang-Hua Yang

Terahertz (THz) tomographic imaging has recently attracted significant attention thanks to its non-invasive, non-destructive, non-ionizing, material-classification, and ultra-fast nature for object exploration and inspection. However, its…

图像与视频处理 · 电气工程与系统科学 2023-05-01 Weng-Tai Su , Yi-Chun Hung , Po-Jen Yu , Shang-Hua Yang , Chia-Wen Lin

Since its first demonstration in 1995, terahertz time-domain imaging has attracted an increasingly growing interest for its ability to reveal spectral fingerprints of materials, probe changes in refractive index and absorption, as well as…

Terahertz (THz) imaging has recently attracted significant attention thanks to its non-invasive, non-destructive, non-ionizing, material-classification, and ultra-fast nature for object exploration and inspection. However, its strong water…

多媒体 · 计算机科学 2021-12-30 Weng-tai Su , Yi-Chun Hung , Ta-Hsuan Chao , Po-Jen Yu , Shang-Hua Yang , Chia-Wen Lin

Terahertz time-domain spectroscopy (THz-TDS) employs sub-picosecond pulses to probe dielectric properties of materials giving as a result a 3-dimensional hyperspectral data cube. The spatial resolution of THz images is primarily limited by…

We present an implementation of the single-pixel imaging approach into a terahertz (THz) time-domain spectroscopy (TDS) system. We demonstrate the indirect coherent reconstruction of THz temporal waveforms at each spatial position of an…

图像与视频处理 · 电气工程与系统科学 2020-02-19 Luca Zanotto , Riccardo Piccoli , Junliang Dong , Diego Caraffini , Roberto Morandotti , Luca Razzari

Recently, digital holographic imaging techniques (including methods with heterodyne detection) have found increased attention in the terahertz (THz) frequency range. However, holographic techniques rely on the use of a reference beam in…

光学 · 物理学 2022-12-14 Mingjun Xiang , Hui Yuan , Lingxiao Wang , Kai Zhou , Hartmut G. Roskos

Compressed Sensing based Terahertz imaging (CS-THz) is a computational imaging technique. It uses only one THz receiver to accumulate the random modulated image measurements where the original THz image is reconstruct from these…

计算机视觉与模式识别 · 计算机科学 2013-09-25 Benyuan Liu , Hongqi Fan , Zaiqi Lu , Qiang Fu

Terahertz (THz) band has recently garnered significant attention due to its exceptional capabilities in non-invasive, non-destructive sensing, and imaging applications. However, current THz imaging systems encounter substantial challenges…

光学 · 物理学 2025-01-23 Shao-Hsuan Wu , Seyed Mostafa Latifi , Chia-Wen Lin , Shang-Hua Yang

This study proposes a novel approach utilizing a physics-informed deep learning (DL) algorithm to reconstruct occluded objects in a terahertz (THz) holographic system. Taking the angular spectrum theory as prior knowledge, we generate a…

光学 · 物理学 2024-08-26 Mingjun Xiang , Kai Zhou , Hui Yuan , Hartmut G. Roskos

Deep learning (DL) has shown unprecedented performance for many image analysis and image enhancement tasks. Yet, solving large-scale inverse problems like tomographic reconstruction remains challenging for DL. These problems involve…

医学物理 · 物理学 2019-12-18 Lin Fu , Bruno De Man

Terahertz imaging provides valuable insights into the composition and structure of objects or materials, with applications spanning security screening, medical imaging, materials science, and cultural heritage preservation. Despite its…

Terahertz imaging holds great potential for non-destructive material inspection, but practical implementation has been limited by resolution constraints. In this study, we present a single-pixel THz imaging system based on a confocal…

Terahertz (THz) waves have been significantly developed in the last fifteen years because of their great potential for applications in industrial and scientific communities1,2. The unique properties of THz waves as transparency for numerous…

光学 · 物理学 2015-05-27 F. Blanchard , A. Doi , T. Tanaka , H. Hirori , H. Tanaka , Y. Kadoya , K. Tanaka

Terahertz (THz) communications is considered as one of key solutions to support extremely high data demand in 6G. One main difficulty of the THz communication is the severe signal attenuation caused by the foliage loss, oxygen/atmospheric…

信号处理 · 电气工程与系统科学 2024-05-14 Jinhong Kim , Yongjun Ahn , Seungnyun Kim , Byonghyo Shim

Purpose: The terahertz (THz) medical imaging is a promising noninvasive technique for monitoring the skin's conditions, early detection of the human skin cancer, and recovery from burns and wounds. It can be applied for visualization of…

Terahertz (THz) tomography is a rather novel technique for nondestructive testing that is particularly suited for the testing of plastics and ceramics. Previous publications showed a large variety of conventional algorithms adapted from…

数值分析 · 数学 2016-01-19 Jens Tepe , Thomas Schuster , Benjamin Littau

Assume you encounter an inverse problem that shall be solved for a large number of data, but no ground-truth data is available. To emulate this encounter, in this study, we assume it is unknown how to solve the imaging problem of Computed…

Terahertz (THz) imaging enables non-invasive analysis for applications such as security screening and material classification, but effective image classification remains challenging due to limited annotations, low resolution, and visual…

计算与语言 · 计算机科学 2025-07-22 Nicolas Poggi , Shashank Agnihotri , Margret Keuper
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