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In this work we use deep learning to establish dense correspondences between a 3D object model and an image "in the wild". We introduce "DenseReg", a fully-convolutional neural network (F-CNN) that densely regresses at every foreground…

计算机视觉与模式识别 · 计算机科学 2018-03-13 Riza Alp Guler , Yuxiang Zhou , George Trigeorgis , Epameinondas Antonakos , Patrick Snape , Stefanos Zafeiriou , Iasonas Kokkinos

Deformable medical image registration is an essential task in computer-assisted interventions. This problem is particularly relevant to oncological treatments, where precise image alignment is necessary for tracking tumor growth, assessing…

计算机视觉与模式识别 · 计算机科学 2025-06-04 Stefano Fogarollo , Gregor Laimer , Reto Bale , Matthias Harders

Objective: Deformable brain MR image registration is challenging due to large inter-subject anatomical variation. For example, the highly complex cortical folding pattern makes it hard to accurately align corresponding cortical structures…

计算机视觉与模式识别 · 计算机科学 2019-02-07 Dongming Wei , Zhengwang Wu , Gang Li , Xiaohuan Cao , Dinggang Shen , Qian Wang

Most existing methods for CRF estimation from a single image fail to handle general real images. For instance, EdgeCRF based on colour patches extracted from edges works effectively only when the presence of noise is insignificant, which is…

计算机视觉与模式识别 · 计算机科学 2021-02-24 Aashish Sharma , Robby T. Tan , Loong-Fah Cheong

Deep image registration has demonstrated exceptional accuracy and fast inference. Recent advances have adopted either multiple cascades or pyramid architectures to estimate dense deformation fields in a coarse-to-fine manner. However, due…

计算机视觉与模式识别 · 计算机科学 2024-07-19 Xinxing Cheng , Xi Jia , Wenqi Lu , Qiufu Li , Linlin Shen , Alexander Krull , Jinming Duan

Image composition is an important operation in image processing, but the inconsistency between foreground and background significantly degrades the quality of composite image. Image harmonization, aiming to make the foreground compatible…

计算机视觉与模式识别 · 计算机科学 2020-11-03 Wenyan Cong , Jianfu Zhang , Li Niu , Liu Liu , Zhixin Ling , Weiyuan Li , Liqing Zhang

Background and Objective: In neurosurgery, fusing clinical images and depth images that can improve the information and details is beneficial to surgery. We found that the registration of face depth images was invalid frequently using…

计算机视觉与模式识别 · 计算机科学 2024-05-24 Pengfei Li , Ziyue Ma , Hong Wang , Juan Deng , Yan Wang , Zhenyu Xu , Feng Yan , Wenjun Tu , Hong Sha

Medical image segmentation is a relevant task as it serves as the first step for several diagnosis processes, thus it is indispensable in clinical usage. Whilst major success has been reported using supervised techniques, they assume a…

计算机视觉与模式识别 · 计算机科学 2022-07-22 Lihao Liu , Angelica I Aviles-Rivero , Carola-Bibiane Schönlieb

Recently, flow-based frame interpolation methods have achieved great success by first modeling optical flow between target and input frames, and then building synthesis network for target frame generation. However, above cascaded…

计算机视觉与模式识别 · 计算机科学 2022-11-14 Lingtong Kong , Jinfeng Liu , Jie Yang

We propose LiftReg, a 2D/3D deformable registration approach. LiftReg is a deep registration framework which is trained using sets of digitally reconstructed radiographs (DRR) and computed tomography (CT) image pairs. By using simulated…

图像与视频处理 · 电气工程与系统科学 2023-04-05 Lin Tian , Yueh Z. Lee , Raúl San José Estépar , Marc Niethammer

In the current monocular depth research, the dominant approach is to employ unsupervised training on large datasets, driven by warped photometric consistency. Such approaches lack robustness and are unable to generalize to challenging…

计算机视觉与模式识别 · 计算机科学 2020-03-31 Jaime Spencer , Richard Bowden , Simon Hadfield

Optics-guided thermal UAV image super-resolution has attracted significant research interest due to its potential in all-weather monitoring applications. However, existing methods typically compress optical features to match thermal feature…

计算机视觉与模式识别 · 计算机科学 2026-01-08 Zhicheng Zhao , Fengjiao Peng , Jinquan Yan , Wei Lu , Chenglong Li , Jin Tang

Diffeomorphic image registration is a fundamental step in medical image analysis, owing to its capability to ensure the invertibility of transformations and preservation of topology. Currently, unsupervised learning-based registration…

计算机视觉与模式识别 · 计算机科学 2024-05-07 Jiong Wu , Shuang Zhou , Li Lin , Xin Wang , Wenxue Tan

Matching cross-modality features between images and point clouds is a fundamental problem for image-to-point cloud registration. However, due to the modality difference between images and points, it is difficult to learn robust and…

计算机视觉与模式识别 · 计算机科学 2024-04-16 Haiping Wang , Yuan Liu , Bing Wang , Yujing Sun , Zhen Dong , Wenping Wang , Bisheng Yang

Deformable image registration is a crucial step in medical image analysis for finding a non-linear spatial transformation between a pair of fixed and moving images. Deep registration methods based on Convolutional Neural Networks (CNNs)…

计算机视觉与模式识别 · 计算机科学 2022-09-20 Mingyuan Meng , Lei Bi , Dagan Feng , Jinman Kim

Point set registration is defined as a process to determine the spatial transformation from the source point set to the target one. Existing methods often iteratively search for the optimal geometric transformation to register a given pair…

图形学 · 计算机科学 2019-04-03 Lingjing Wang , Jianchun Chen , Xiang Li , Yi Fang

Image registration is a fundamental building block for various applications in medical image analysis. To better explore the correlation between the fixed and moving images and improve registration performance, we propose a novel deep…

图像与视频处理 · 电气工程与系统科学 2021-06-15 Xiang Chen , Yan Xia , Nishant Ravikumar , Alejandro F Frangi

Registering an object shape to a sequence of point clouds undergoing non-rigid deformation is a long-standing challenge. The key difficulties stem from two factors: (i) the presence of local minima due to the non-convexity of registration…

计算机视觉与模式识别 · 计算机科学 2025-10-20 Guangzhao He , Yuxi Xiao , Zhen Xu , Xiaowei Zhou , Sida Peng

Deformation field estimation is an important and challenging issue in many medical image registration applications. In recent years, deep learning technique has become a promising approach for simplifying registration problems, and has been…

计算机视觉与模式识别 · 计算机科学 2020-04-17 Yujia Zhou , Shumao Pang , Jun Cheng , Yuhang Sun , Yi Wu , Lei Zhao , Yaqin Liu , Zhentai Lu , Wei Yang , Qianjin Feng

Robust and discriminative feature learning is critical for high-quality point cloud registration. However, existing deep learning-based methods typically rely on Euclidean neighborhood-based strategies for feature extraction, which struggle…

计算机视觉与模式识别 · 计算机科学 2025-12-30 Shuyuan Lin , Wenwu Peng , Junjie Huang , Qiang Qi , Miaohui Wang , Jian Weng