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Multi-energy CT has long demonstrated its ability to enhance image quality with material decomposition. Yet, it has largely been limited to applications that already have high contrast. More recently, x-ray phase-contrast (XPC) imaging has…

医学物理 · 物理学 2025-08-19 Giavanna Jadick , Patrick La Rivière

Dual energy computed tomography (DECT) imaging plays an important role in advanced imaging applications due to its material decomposition capability. Image-domain decomposition operates directly on CT images using linear matrix inversion,…

图像与视频处理 · 电气工程与系统科学 2019-08-20 Zhipeng Li , Saiprasad Ravishankar , Yong Long , Jeffrey A. Fessler

Multi-energy radiography is a new direction in non-destructive testing. Its specific feature is separate detection of penetrating radiation in several energy channels. Multi-energy radiography allows quantitative determination of the atomic…

仪器与探测器 · 物理学 2009-11-11 Sergei V. Naydenov , Vladimir D. Ryzhikov , Craig F. Smith , Dennis Wood

This paper combines Struts and Hibernate two architectures together, using DAO (Data Access Object) to store and access data. Then a set of dual-mode humidity medical image library suitable for deep network is established, and a dual-mode…

计算机视觉与模式识别 · 计算机科学 2024-04-30 Jiajie Yuan , Linxiao Wu , Yulu Gong , Zhou Yu , Ziang Liu , Shuyao He

Image retrieval (IR) has emerged as a promising approach for self-localization in unmanned aerial vehicles (UAVs). However, IR-based methods face several challenges: 1) Pre- and post-processing incur significant computational and storage…

计算机视觉与模式识别 · 计算机科学 2024-08-29 Ming Dai , Enhui Zheng , Jiahao Chen , Lei Qi , Zhenhua Feng , Wankou Yang

Rendering realistic images with global illumination is a computationally demanding task and often requires dedicated hardware for feasible runtime. Recent research uses Deep Neural Networks to predict indirect lighting on image level, but…

图形学 · 计算机科学 2020-07-31 Giulio Jiang , Bernhard Kainz

Algorithms for Magnetic Resonance (MR) image reconstruction from undersampled measurements exploit prior information to compensate for missing k-space data. Deep learning (DL) provides a powerful framework for extracting such information…

计算机视觉与模式识别 · 计算机科学 2018-12-20 Kerem C. Tezcan , Christian F. Baumgartner , Roger Luechinger , Klaas P. Pruessmann , Ender Konukoglu

Underwater images taken from autonomous underwater vehicles (AUV's) often suffer from low light, high turbidity, poor contrast, motion-blur and excessive light scattering and hence require image enhancement techniques for object…

计算机视觉与模式识别 · 计算机科学 2025-07-25 Sreeraj Rajan Warrier , D Sri Harshavardhan Reddy , Sriya Bada , Rohith Achampeta , Sebastian Uppapalli , Jayasri Dontabhaktuni

Dual-energy subtraction imaging (DES) is a method to improve the detectability of contrast agents over a lumpy background. Two images, acquired at x-ray energies above and below an absorption edge of the agent material, are logarithmically…

As a critical component of coherent X-ray diffraction imaging (CDI), phase retrieval has been extensively applied in X-ray structural science to recover the 3D morphological information inside measured particles. Despite meeting all the…

图像与视频处理 · 电气工程与系统科学 2021-10-29 Longlong Wu , Shinjae Yoo , Ana F. Suzana , Tadesse A. Assefa , Jiecheng Diao , Ross J. Harder , Wonsuk Cha , Ian K. Robinson

Classification of different object surface material types can play a significant role in the decision-making algorithms for mobile robots and autonomous vehicles. RGB-based scene-level semantic segmentation has been well-addressed in the…

机器人学 · 计算机科学 2024-07-09 Siva Krishna Ravipati , Ehsan Latif , Ramviyas Parasuraman , Suchendra M. Bhandarkar

We propose and study the single-frame anisoplanatic deconvolution problem associated with image classification using machine learning algorithms, named the nonuniform defocus removal (NDR) problem. Mathematical analysis of the NDR problem…

计算机视觉与模式识别 · 计算机科学 2021-06-29 Nguyen Hieu Thao , Oleg Soloviev , Jacques Noom , Michel Verhaegen

Dual-energy computed tomography (DECT) is of great significance for clinical practice due to its huge potential to provide material-specific information. However, DECT scanners are usually more expensive than standard single-energy CT…

医学物理 · 物理学 2020-06-02 Tianling Lyu , Zhan Wu , Yikun Zhang , Yang Chen , Lei Xing , Wei Zhao

Visual Document Retrieval (VDR) requires representations that capture both fine-grained visual details and global document structure to ensure retrieval efficacy while maintaining computational efficiency. Existing VDR models struggle to…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Fengbin Zhu , Zijing Cai , Yuzhe Wang , Pengyang Shao , Wenjie Wang , Fuli Feng , Richang Hong , Tat-Seng Chua

Accurate skin disease classification is a critical yet challenging task due to high inter-class similarity, intra-class variability, and complex lesion textures. While deep learning-based computer-aided diagnosis (CAD) systems have shown…

计算机视觉与模式识别 · 计算机科学 2025-08-07 Enam Ahmed Taufik , Abdullah Khondoker , Antara Firoz Parsa , Seraj Al Mahmud Mostafa

Ray tracing (RT) is instrumental in 6G research in order to generate spatially-consistent and environment-specific channel impulse responses (CIRs). While acquiring accurate scene geometries is now relatively straightforward, determining…

Vast amounts of astronomical photometric data are generated from various projects, requiring significant effort to identify variable stars and other object classes. In light of this, a general, widely applicable classification framework…

天体物理仪器与方法 · 物理学 2024-09-23 Kaiming Cui , D. J. Armstrong , Fabo Feng

In this paper, we propose a 2-stage low-light image enhancement method called Self-Reference Deep Adaptive Curve Estimation (Self-DACE). In the first stage, we present an intuitive, lightweight, fast, and unsupervised luminance enhancement…

图像与视频处理 · 电气工程与系统科学 2023-09-12 Jianyu Wen , Chenhao Wu , Tong Zhang , Yixuan Yu , Piotr Swierczynski

The key to most surface phenomenon lies with the surface structure. Particularly it is the charge density distribution over surface that primarily controls overall interaction of the material with external environment. It is generally…

材料科学 · 物理学 2025-04-16 Nirman Chakraborty , Swastik Mondal

Data limitation is a significant challenge in applying deep learning to medical images. Recently, the diffusion probabilistic model (DPM) has shown the potential to generate high-quality images by converting Gaussian random noise into…

计算机视觉与模式识别 · 计算机科学 2024-08-26 Sepehr Salem Ghahfarokhi , Tyrell To , Julie Jorns , Tina Yen , Bing Yu , Dong Hye Ye