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3D microscopic cerebrovascular images are characterized by their high resolution, presenting significant annotation challenges, large data volumes, and intricate variations in detail. Together, these factors make achieving high-quality,…

计算机视觉与模式识别 · 计算机科学 2024-11-15 Xi Lin , Shixuan Zhao , Xinxu Wei , Amir Shmuel , Yongjie Li

Denoising diffusion models have demonstrated outstanding results in 2D image generation, yet it remains a challenge to replicate its success in 3D shape generation. In this paper, we propose leveraging multi-view depth, which represents…

计算机视觉与模式识别 · 计算机科学 2023-12-21 Zhen Wang , Qiangeng Xu , Feitong Tan , Menglei Chai , Shichen Liu , Rohit Pandey , Sean Fanello , Achuta Kadambi , Yinda Zhang

Integrating LiDAR and camera information in the bird's eye view (BEV) representation has demonstrated its effectiveness in 3D object detection. However, because of the fundamental disparity in geometric accuracy between these sensors,…

计算机视觉与模式识别 · 计算机科学 2025-12-03 Guowen Zhang , Chenhang He , Liyi Chen , Lei Zhang

Liver-vessel segmentation is an essential task in the pre-operative planning of liver resection. State-of-the-art 2D or 3D convolution-based methods focusing on liver vessel segmentation on 2D CT cross-sectional views, which do not take…

计算机视觉与模式识别 · 计算机科学 2025-03-06 Xiaotong Zhang , Alexander Broersen , Gonnie CM van Erp , Silvia L. Pintea , Jouke Dijkstra

We present iFusion, a novel 3D object reconstruction framework that requires only two views with unknown camera poses. While single-view reconstruction yields visually appealing results, it can deviate significantly from the actual object,…

计算机视觉与模式识别 · 计算机科学 2023-12-29 Chin-Hsuan Wu , Yen-Chun Chen , Bolivar Solarte , Lu Yuan , Min Sun

Latest diffusion-based methods for many image restoration tasks outperform traditional models, but they encounter the long-time inference problem. To tackle it, this paper proposes a Wavelet-Based Diffusion Model (WaveDM). WaveDM learns the…

计算机视觉与模式识别 · 计算机科学 2024-01-26 Yi Huang , Jiancheng Huang , Jianzhuang Liu , Mingfu Yan , Yu Dong , Jiaxi Lv , Chaoqi Chen , Shifeng Chen

Diffusion models have become a popular approach for image generation and reconstruction due to their numerous advantages. However, most diffusion-based inverse problem-solving methods only deal with 2D images, and even recently published 3D…

图像与视频处理 · 电气工程与系统科学 2023-09-04 Suhyeon Lee , Hyungjin Chung , Minyoung Park , Jonghyuk Park , Wi-Sun Ryu , Jong Chul Ye

Our demonstration shows a system that estimates internal body structures from 3D surface models using deep convolutional neural networks trained on CT (computed tomography) images of the human body. To take pictures of structures inside the…

计算机视觉与模式识别 · 计算机科学 2018-01-08 Takumi Moriya , Kazuyuki Saito , Hiroya Tanaka

Road information extraction from 3D point clouds is useful for urban planning and traffic management. Existing methods often rely on local features and the refraction angle of lasers from kerbs, which makes them sensitive to variable kerb…

计算机视觉与模式识别 · 计算机科学 2025-02-12 Xinyu Wang , Muhammad Ibrahim , Atif Mansoor , Hasnein Tareque , Ajmal Mian

Diffusion-based voxel prior modelling is challenging for the reconstruction of large-scale 3D porous microstructures. Due to the demanding requirements for simultaneously modelling both the continuous pore morphology and the discrete…

计算机视觉与模式识别 · 计算机科学 2026-05-06 Yue Shi , Peng Wang , Mingzhe Yu , Yunlong Zhao , Li Liu , Gareth D Hatton , Yan Lyu , Liangxiu Han

Diffusion tensor imaging (DTI) provides crucial insights into the microstructure of the human brain, but it can be time-consuming to acquire compared to more readily available T1-weighted (T1w) magnetic resonance imaging (MRI). To address…

计算机视觉与模式识别 · 计算机科学 2025-04-22 Shaorong Zhang , Tamoghna Chattopadhyay , Sophia I. Thomopoulos , Jose-Luis Ambite , Paul M. Thompson , Greg Ver Steeg

The application of 3D ViTs to medical image segmentation has seen remarkable strides, somewhat overshadowing the budding advancements in Convolutional Neural Network (CNN)-based models. Large kernel depthwise convolution has emerged as a…

计算机视觉与模式识别 · 计算机科学 2023-10-05 Ho Hin Lee , Quan Liu , Qi Yang , Xin Yu , Shunxing Bao , Yuankai Huo , Bennett A. Landman

Volume visualization is a method that displays three-dimensional (3D) data in two-dimensional (2D) space. Using 3D datasets instead of 2D traditional images improves the visualization of anatomical structures, and volume visualization helps…

Image-based virtual try-on is an increasingly important task for online shopping. It aims to synthesize images of a specific person wearing a specified garment. Diffusion model-based approaches have recently become popular, as they are…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Xu Yang , Changxing Ding , Zhibin Hong , Junhao Huang , Jin Tao , Xiangmin Xu

Accurate 3D aortic construction is crucial for clinical diagnosis, preoperative planning, and computational fluid dynamics (CFD) simulations, as it enables the estimation of critical hemodynamic parameters such as blood flow velocity,…

计算机视觉与模式识别 · 计算机科学 2025-07-21 Delin An , Pan Du , Jian-Xun Wang , Chaoli Wang

Recent Diffusion Transformers (e.g., DiT) have demonstrated their powerful effectiveness in generating high-quality 2D images. However, it is still being determined whether the Transformer architecture performs equally well in 3D shape…

计算机视觉与模式识别 · 计算机科学 2023-07-06 Shentong Mo , Enze Xie , Ruihang Chu , Lewei Yao , Lanqing Hong , Matthias Nießner , Zhenguo Li

A well-known challenge in applying deep-learning methods to omnidirectional images is spherical distortion. In dense regression tasks such as depth estimation, where structural details are required, using a vanilla CNN layer on the…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Yuyan Li , Yuliang Guo , Zhixin Yan , Xinyu Huang , Ye Duan , Liu Ren

We propose a diffusion-based algorithm for separating the inter and outer layer surfaces from double-layered point clouds, particularly those exhibiting the "double surface artifact" caused by truncation in Truncated Signed Distance…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Zhengyan Qin , Liyuan Qiu

Computed tomography (CT) is one of the modalities for effective lung cancer screening, diagnosis, treatment, and prognosis. The features extracted from CT images are now used to quantify spatial and temporal variations in tumors. However,…

图像与视频处理 · 电气工程与系统科学 2023-03-28 Md Selim , Jie Zhang , Michael A. Brooks , Ge Wang , Jin Chen

Magnetic Resonance (MR) imaging plays an essential role in contemporary clinical diagnostics. It is increasingly integrated into advanced therapeutic workflows, such as hybrid Positron Emission Tomography/Magnetic Resonance (PET/MR) imaging…

图像与视频处理 · 电气工程与系统科学 2025-07-17 Jiaxu Zheng , Meiman He , Xuhui Tang , Xiong Wang , Tuoyu Cao , Tianyi Zeng , Lichi Zhang , Chenyu You
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