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相关论文: 3D-2D Neural Nets for Phase Retrieval in Noisy Int…

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The problem of phase retrieval is a classic one in optics and arises when one is interested in recovering an unknown signal from the magnitude (intensity) of its Fourier transform. While there have existed quite a few approaches to phase…

信息论 · 计算机科学 2015-10-28 Kishore Jaganathan , Yonina C. Eldar , Babak Hassibi

4D radar-based object detection has garnered great attention for its robustness in adverse weather conditions and capacity to deliver rich spatial information across diverse driving scenarios. Nevertheless, the sparse and noisy nature of 4D…

计算机视觉与模式识别 · 计算机科学 2025-08-20 Fuyang Liu , Jilin Mei , Fangyuan Mao , Chen Min , Yan Xing , Yu Hu

3D point clouds are often perturbed by noise due to the inherent limitation of acquisition equipments, which obstructs downstream tasks such as surface reconstruction, rendering and so on. Previous works mostly infer the displacement of…

计算机视觉与模式识别 · 计算机科学 2020-08-11 Shitong Luo , Wei Hu

Spacecraft pose estimation plays a vital role in many on-orbit space missions, such as rendezvous and docking, debris removal, and on-orbit maintenance. At present, space images contain widely varying lighting conditions, high contrast and…

计算机视觉与模式识别 · 计算机科学 2023-09-08 Hu Gao , Zhihui Li , Depeng Dang , Ning Wang , Jingfan Yang

Ultra-High-Definition (UHD) photo has gradually become the standard configuration in advanced imaging devices. The new standard unveils many issues in existing approaches for low-light image enhancement (LLIE), especially in dealing with…

计算机视觉与模式识别 · 计算机科学 2023-02-24 Chongyi Li , Chun-Le Guo , Man Zhou , Zhexin Liang , Shangchen Zhou , Ruicheng Feng , Chen Change Loy

U-Net style networks are commonly utilized in unsupervised image registration to predict dense displacement fields, which for high-resolution volumetric image data is a resource-intensive and time-consuming task. To tackle this challenge,…

图像与视频处理 · 电气工程与系统科学 2023-07-07 Xi Jia , Alexander Thorley , Alberto Gomez , Wenqi Lu , Dipak Kotecha , Jinming Duan

Current self-supervised denoising techniques achieve impressive results, yet their real-world application is frequently constrained by substantial computational and memory demands, necessitating a compromise between inference speed and…

计算机视觉与模式识别 · 计算机科学 2025-10-20 Tomáš Chobola , Julia A. Schnabel , Tingying Peng

In PET, the amount of relative (signal-dependent) noise present in different body regions can be significantly different and is inherently related to the number of counts present in that region. The number of counts in a region depends, in…

图像与视频处理 · 电气工程与系统科学 2022-12-20 Ye Li , Jianan Cui , Junyu Chen , Guodong Zeng , Scott Wollenweber , Floris Jansen , Se-In Jang , Kyungsang Kim , Kuang Gong , Quanzheng Li

We propose an efficient Stereographic Projection Neural Network (SPNet) for learning representations of 3D objects. We first transform a 3D input volume into a 2D planar image using stereographic projection. We then present a shallow 2D…

计算机视觉与模式识别 · 计算机科学 2019-01-25 Mohsen Yavartanoo , Eu Young Kim , Kyoung Mu Lee

A novel deep learning paradigm for synthesis imaging by radio interferometry in astronomy was recently proposed, dubbed "Residual-to-Residual DNN series for high-Dynamic range imaging" (R2D2). In this work, we start by shedding light on…

天体物理仪器与方法 · 物理学 2024-04-24 Arwa Dabbech , Amir Aghabiglou , Chung San Chu , Yves Wiaux

In image denoising, deep convolutional neural networks (CNNs) can obtain favorable performance on removing spatially invariant noise. However, many of these networks cannot perform well on removing the real noise (i.e. spatially variant…

图像与视频处理 · 电气工程与系统科学 2023-05-09 Wencong Wu , Shijie Liu , Yi Zhou , Yungang Zhang , Yu Xiang

High-speed quantitative phase imaging enables non-intrusive visualization of transient compressible gas flows and energetic phenomena. However, phase maps reconstructed via the transport of intensity equation (TIE) suffer from spatially…

光学 · 物理学 2026-04-14 Krishna Rajput , Vipul Gupta , Sudheesh K. Rajput , Yasuhiro Awatsuji

Positron Emission Tomography (PET) is an important molecular imaging tool widely used in medicine. Traditional PET systems rely on complete detector rings for full angular coverage and reliable data collection. However, incomplete-ring PET…

计算机视觉与模式识别 · 计算机科学 2026-05-26 Yeqi Fang , Rong Zhou

PURPOSE: Demonstrate a novel fast method for reconstruction of multi-dimensional MR Fingerprinting (MRF) data using Deep Learning methods. METHODS: A neural network (NN) is defined using the TensorFlow framework and trained on simulated MRF…

计算机视觉与模式识别 · 计算机科学 2024-07-17 Ouri Cohen , Bo Zhu , Matthew S. Rosen

Recovering high quality surfaces from noisy point clouds, known as point cloud denoising, is a fundamental yet challenging problem in geometry processing. Most of the existing methods either directly denoise the noisy input or filter raw…

计算机视觉与模式识别 · 计算机科学 2023-07-04 Zheng Liu , Yaowu Zhao , Sijing Zhan , Yuanyuan Liu , Renjie Chen , Ying He

Time-resolved atom interferometry, as employed in applications such as gravitational wave detection and searches for ultra-light dark matter, requires precise control over systematic effects. In this work, we investigate phase noise arising…

原子物理 · 物理学 2025-11-25 Noam Mouelle , Jeremiah Mitchell , Valerie Gibson , Ulrich Schneider

Existing fixed pattern noise reduction (FPNR) methods are easily affected by the motion state of the scene and working condition of the image sensor, which leads to over smooth effects, ghosting artifacts as well as slow convergence rate.…

图像与视频处理 · 电气工程与系统科学 2019-10-23 Juntao Guan , Rui Lai , Ai Xiong , Zesheng Liu , Lin Gu

With the popularization of high-end mobile devices, Ultra-high-definition (UHD) images have become ubiquitous in our lives. The restoration of UHD images is a highly challenging problem due to the exaggerated pixel count, which often leads…

计算机视觉与模式识别 · 计算机科学 2024-11-12 Chen Wu , Ling Wang , Long Peng , Dianjie Lu , Zhuoran Zheng

Underwater imagery is often compromised by factors such as color distortion and low contrast, posing challenges for high-level vision tasks. Recent underwater image restoration (UIR) methods either analyze the input image at full…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Alik Pramanick , Arijit Sur , V. Vijaya Saradhi

In this paper, we propose a two-stage fully 3D network, namely \textbf{DeepFuse}, to estimate human pose in 3D space by fusing body-worn Inertial Measurement Unit (IMU) data and multi-view images deeply. The first stage is designed for pure…

计算机视觉与模式识别 · 计算机科学 2019-12-10 Fuyang Huang , Ailing Zeng , Minhao Liu , Qiuxia Lai , Qiang Xu