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相关论文: APRF: Anti-Aliasing Projection Representation Fiel…

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Reconstructing the high-fidelity surface from multi-view images, especially sparse images, is a critical and practical task that has attracted widespread attention in recent years. However, existing methods are impeded by the memory…

计算机视觉与模式识别 · 计算机科学 2024-09-06 Rui Peng , Shihe Shen , Kaiqiang Xiong , Huachen Gao , Jianbo Jiao , Xiaodong Gu , Ronggang Wang

X-ray computed tomography (CT) is one of widely used diagnostic tools for medical and dental tomographic imaging of the human body. However, the standard filtered backprojection reconstruction method requires the complete knowledge of the…

数值分析 · 数学 2016-02-24 Jae Kyu Choi , Bin Dong , Xiaoqun Zhang

Neural radiance fields (NeRF) have revolutionized the field of image-based view synthesis. However, NeRF uses straight rays and fails to deal with complicated light path changes caused by refraction and reflection. This prevents NeRF from…

计算机视觉与模式识别 · 计算机科学 2023-09-25 Xiaoxue Chen , Junchen Liu , Hao Zhao , Guyue Zhou , Ya-Qin Zhang

Thermal images model the long-infrared range of the electromagnetic spectrum and provide meaningful information even when there is no visible illumination. Yet, unlike imagery that represents radiation from the visible continuum, infrared…

图像与视频处理 · 电气工程与系统科学 2021-08-03 Nolan B. Gutierrez , William J. Beksi

The radiation dose in computed tomography (CT) examinations is harmful for patients but can be significantly reduced by intuitively decreasing the number of projection views. Reducing projection views usually leads to severe aliasing…

图像与视频处理 · 电气工程与系统科学 2022-11-28 Bing Guan , Cailian Yang , Liu Zhang , Shanzhou Niu , Minghui Zhang , Yuhao Wang , Weiwen Wu , Qiegen Liu

We present a method for transferring the artistic features of an arbitrary style image to a 3D scene. Previous methods that perform 3D stylization on point clouds or meshes are sensitive to geometric reconstruction errors for complex…

计算机视觉与模式识别 · 计算机科学 2022-06-14 Kai Zhang , Nick Kolkin , Sai Bi , Fujun Luan , Zexiang Xu , Eli Shechtman , Noah Snavely

Digital surface model generation using traditional multi-view stereo matching (MVS) performs poorly over non-Lambertian surfaces, with asynchronous acquisitions, or at discontinuities. Neural radiance fields (NeRF) offer a new paradigm for…

计算机视觉与模式识别 · 计算机科学 2023-09-04 Lulin Zhang , Ewelina Rupnik

Aliasing artifacts in renderings produced by Neural Radiance Field (NeRF) is a long-standing but complex issue in the field of 3D implicit representation, which arises from a multitude of intricate causes and was mitigated by designing more…

计算机视觉与模式识别 · 计算机科学 2024-07-11 Ganlin Yang , Kaidong Zhang , Jingjing Fu , Dong Liu

Implicit representation mapping (IRM) can translate image features to any continuous resolution, showcasing its potent capability for ultra-high-resolution image segmentation refinement. Current IRM-based methods for refining…

计算机视觉与模式识别 · 计算机科学 2024-08-01 Ziyu Zhao , Xiaoguang Li , Pingping Cai , Canyu Zhang , Song Wang

In dental cone-beam computed tomography (CBCT), compact and cost-effective system designs often use small detectors, resulting in a truncated field of view (FOV) that does not fully encompass the patient's head. In iterative reconstruction…

计算机视觉与模式识别 · 计算机科学 2025-08-12 Hyoung Suk Park , Kiwan Jeon

Inspired by their success in solving challenging inverse problems in computer vision, implicit neural representations (INRs) have been recently proposed for reconstruction in low-dose/sparse-view X-ray computed tomography (CT). An INR…

图像与视频处理 · 电气工程与系统科学 2025-04-21 Mahrokh Najaf , Gregory Ongie

Purpose The proposed reconstruction framework addresses the reconstruction accuracy, noise propagation and computation time for Magnetic Resonance Fingerprinting (MRF). Methods Based on a singular value decomposition (SVD) of the signal…

Inconsistent responses of X-ray detector elements lead to stripe artifacts in the sinogram data, which manifest as ring artifacts in the reconstructed CT images, severely degrading image quality. This paper proposes a method for correcting…

图像与视频处理 · 电气工程与系统科学 2025-07-01 Ligen Shi , Xu Jiang , YunZe Liu , Chang Liu , Ping Yang , Shifeng Guo , Xing Zhao

We present a novel approach for recovering 3D shape and view dependent appearance from a few colored images, enabling efficient 3D reconstruction and novel view synthesis. Our method learns an implicit neural representation in the form of a…

计算机视觉与模式识别 · 计算机科学 2024-07-22 Mae Younes , Amine Ouasfi , Adnane Boukhayma

Electron tomographic reconstruction is a method for obtaining a three-dimensional image of a specimen with a series of two dimensional microscope images taken from different viewing angles. Filtered backprojection, one of the most popular…

计算机视觉与模式识别 · 计算机科学 2018-08-01 Chen Mu , Chiwoo Park

Performing X-ray computed tomography (CT) examinations with less radiation has recently received increasing interest: in medical imaging this means less (potentially harmful) radiation for the patient; in non-destructive testing of…

医学物理 · 物理学 2018-09-25 Dragos Trinca , Eduard Libin

Multiview super-resolution image reconstruction (SRIR) is often cast as a resampling problem by merging non-redundant data from multiple low-resolution (LR) images on a finer high-resolution (HR) grid, while inverting the effect of the…

计算机视觉与模式识别 · 计算机科学 2017-05-04 Vildan Atalay Aydin , Hassan Foroosh

Cone beam computed tomography (CBCT) has been widely used in clinical practice, especially in dental clinics, while the radiation dose of X-rays when capturing has been a long concern in CBCT imaging. Several research works have been…

图像与视频处理 · 电气工程与系统科学 2022-12-01 Yu Fang , Lanzhuju Mei , Changjian Li , Yuan Liu , Wenping Wang , Zhiming Cui , Dinggang Shen

Articulated objects and their representations pose a difficult problem for robots. These objects require not only representations of geometry and texture, but also of the various connections and joint parameters that make up each…

机器人学 · 计算机科学 2024-09-17 Stanley Lewis , Tom Gao , Odest Chadwicke Jenkins

Computed tomography is widely used to examine internal structures in a non-destructive manner. To obtain high-quality reconstructions, one typically has to acquire a densely sampled trajectory to avoid angular undersampling. However, many…

图像与视频处理 · 电气工程与系统科学 2020-12-10 Haoyu Wei , Florian Schiffers , Tobias Würfl , Daming Shen , Daniel Kim , Aggelos K. Katsaggelos , Oliver Cossairt