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Tomographic imaging reveals internal structures of 3D objects and is crucial for medical diagnoses. Visualizing the morphology and appearance of non-planar sparse anatomical structures that extend over multiple 2D slices in tomographic…

Computer Vision and Pattern Recognition · Computer Science 2024-11-28 Leonhard Rist , Pluvio Stephan , Noah Maul , Linda Vorberg , Hendrik Ditt , Michael Sühling , Andreas Maier , Bernhard Egger , Oliver Taubmann

Although deep neural networks have been a dominant method for many 2D vision tasks, it is still challenging to apply them to 3D tasks, such as medical image segmentation, due to the limited amount of annotated 3D data and limited…

Computer Vision and Pattern Recognition · Computer Science 2020-11-02 Yingwei Li , Zhuotun Zhu , Yuyin Zhou , Yingda Xia , Wei Shen , Elliot K. Fishman , Alan L. Yuille

Creating high-fidelity 3D meshes with arbitrary topology, including open surfaces and complex interiors, remains a significant challenge. Existing implicit field methods often require costly and detail-degrading watertight conversion, while…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Xianglong He , Zi-Xin Zou , Chia-Hao Chen , Yuan-Chen Guo , Ding Liang , Chun Yuan , Wanli Ouyang , Yan-Pei Cao , Yangguang Li

Diffusion MRI (dMRI) provides the ability to reconstruct neuronal fibers in the brain, $\textit{in vivo}$, by measuring water diffusion along angular gradient directions in q-space. High angular resolution diffusion imaging (HARDI) can…

Machine Learning · Statistics 2018-05-30 Evan Schwab , René Vidal , Nicolas Charon

Obtaining pixel-level annotations in the medical domain is both expensive and time-consuming, often requiring close collaboration between clinical experts and developers. Semi-supervised medical image segmentation aims to leverage limited…

Computer Vision and Pattern Recognition · Computer Science 2025-07-23 Lin Xi , Yingliang Ma , Cheng Wang , Sandra Howell , Aldo Rinaldi , Kawal S. Rhode

Analyzing human vasculature and vessel-like, tubular structures, such as airways, is crucial for disease diagnosis and treatment. Current methods often rely on small sub-regions or simplified tree-like structures, rendering analysis of…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Chinmay Prabhakar , Bastian Wittmann , Paul Büschl , Hongwei Bran Li , Bjoern Menze , Suprosanna Shit

Dataset expansion can effectively alleviate the problem of data scarcity for medical image segmentation, due to privacy concerns and labeling difficulties. However, existing expansion algorithms still face great challenges due to their…

Image and Video Processing · Electrical Eng. & Systems 2023-06-07 Shitong Shao , Xiaohan Yuan , Zhen Huang , Ziming Qiu , Shuai Wang , Kevin Zhou

Sparse-view sampling in dual-energy computed tomography (DECT) significantly reduces radiation dose and increases imaging speed, yet is highly prone to artifacts. Although diffusion models have demonstrated potential in effectively handling…

Image and Video Processing · Electrical Eng. & Systems 2025-04-11 Zini Chen , Yao Xiao , Junyan Zhang , Shaoyu Wang , Liu Shi , Qiegen Liu

Myocardial perfusion imaging using SPECT is widely utilized to diagnose coronary artery diseases, but image quality can be negatively affected in low-dose and few-view acquisition settings. Although various deep learning methods have been…

Diffusion models are important in tissue engineering as they enable an understanding of molecular delivery to cells in tissue constructs. As three-dimensional (3D) tissue constructs become larger, more intricate, and more clinically…

Tissues and Organs · Quantitative Biology 2015-12-22 Richard J. McMurtrey

Diffusion-based sparse-view CT (SVCT) imaging has achieved remarkable advancements in recent years, thanks to its more stable generative capability. However, recovering reliable image content and visually consistent textures is still a…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Tianqi Wang , Wenchao Du , Hongyu Yang

Computed Tomography (CT) is a widely utilized imaging modality in clinical settings. Using densely acquired rotational X-ray arrays, CT can capture 3D spatial features. However, it is confronted with challenged such as significant time…

Image and Video Processing · Electrical Eng. & Systems 2025-07-16 Duoyou Chen , Yunqing Chen , Can Zhang , Zhou Wang , Cheng Chen , Ruoxiu Xiao

Diffusion models have become a leading approach for high-fidelity medical image synthesis. However, most existing methods for 3D medical image generation rely on convolutional U-Net backbones within latent diffusion frameworks. While…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Marvin Seyfarth , Salman Ul Hassan Dar , Yannik Frisch , Philipp Wild , Norbert Frey , Florian André , Sandy Engelhardt

We propose SparseFusion, a sparse view 3D reconstruction approach that unifies recent advances in neural rendering and probabilistic image generation. Existing approaches typically build on neural rendering with re-projected features but…

Computer Vision and Pattern Recognition · Computer Science 2023-02-17 Zhizhuo Zhou , Shubham Tulsiani

Acquiring reliable microstructure datasets is a pivotal step toward the systematic design of materials with the aid of integrated computational materials engineering (ICME) approaches. However, obtaining three-dimensional (3D)…

Materials Science · Physics 2023-09-26 Kang-Hyun Lee , Gun Jin Yun

Volumetric optical microscopy using non-diffracting beams enables rapid imaging of 3D volumes by projecting them axially to 2D images but lacks crucial depth information. Addressing this, we introduce MicroDiffusion, a pioneering tool…

Image and Video Processing · Electrical Eng. & Systems 2024-03-19 Mude Hui , Zihao Wei , Hongru Zhu , Fei Xia , Yuyin Zhou

Multi-modal 3D object detection has exhibited significant progress in recent years. However, most existing methods can hardly scale to long-range scenarios due to their reliance on dense 3D features, which substantially escalate…

Computer Vision and Pattern Recognition · Computer Science 2024-03-18 Yiheng Li , Hongyang Li , Zehao Huang , Hong Chang , Naiyan Wang

Positron Emission Tomography (PET) is a vital imaging modality widely used in clinical diagnosis and preclinical research but faces limitations in image resolution and signal-to-noise ratio due to inherent physical degradation factors.…

Image and Video Processing · Electrical Eng. & Systems 2024-11-11 Boxiao Yu , Kuang Gong

Deep learning has revolutionized medical image segmentation, yet its full potential remains constrained by the paucity of annotated datasets. While diffusion models have emerged as a promising approach for generating synthetic image-mask…

Computer Vision and Pattern Recognition · Computer Science 2025-05-12 Kunpeng Qiu , Zhiqiang Gao , Zhiying Zhou , Mingjie Sun , Yongxin Guo

Diffusion Transformers (DiT) are renowned for their impressive generative performance; however, they are significantly constrained by considerable computational costs due to the quadratic complexity in self-attention and the extensive…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Shuning Chang , Pichao Wang , Jiasheng Tang , Fan Wang , Yi Yang