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We present a new deep learning approach for matching deformable shapes by introducing {\it Shape Deformation Networks} which jointly encode 3D shapes and correspondences. This is achieved by factoring the surface representation into (i) a…

计算机视觉与模式识别 · 计算机科学 2018-07-30 Thibault Groueix , Matthew Fisher , Vladimir G. Kim , Bryan C. Russell , Mathieu Aubry

Motivated by the intuition that one can transform two aligned point clouds to each other more easily and meaningfully than a misaligned pair, we propose CorrNet3D -- the first unsupervised and end-to-end deep learning-based framework -- to…

计算机视觉与模式识别 · 计算机科学 2021-05-04 Yiming Zeng , Yue Qian , Zhiyu Zhu , Junhui Hou , Hui Yuan , Ying He

We present Neural Kernel Fields: a novel method for reconstructing implicit 3D shapes based on a learned kernel ridge regression. Our technique achieves state-of-the-art results when reconstructing 3D objects and large scenes from sparse…

计算机视觉与模式识别 · 计算机科学 2021-11-29 Francis Williams , Zan Gojcic , Sameh Khamis , Denis Zorin , Joan Bruna , Sanja Fidler , Or Litany

The purpose of this study is to develop a deep learning based method that can automatically generate segmentations on cone-beam CT (CBCT) for head and neck online adaptive radiation therapy (ART), where expert-drawn contours in planning CT…

医学物理 · 物理学 2021-02-02 Xiao Liang , Howard Morgan , Dan Nguyen , Steve Jiang

Neuronal cell bodies mostly reside in the cerebral cortex. The study of this thin and highly convoluted surface is essential for understanding how the brain works. The analysis of surface data is, however, challenging due to the high…

计算机视觉与模式识别 · 计算机科学 2018-03-29 Karthik Gopinath , Christian Desrosiers , Herve Lombaert

Reconstructing soft tissues from stereo endoscope videos is an essential prerequisite for many medical applications. Previous methods struggle to produce high-quality geometry and appearance due to their inadequate representations of 3D…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Ruyi Zha , Xuelian Cheng , Hongdong Li , Mehrtash Harandi , Zongyuan Ge

Neural surface representation has demonstrated remarkable success in the areas of novel view synthesis and 3D reconstruction. However, assessing the geometric quality of 3D reconstructions in the absence of ground truth mesh remains a…

计算机视觉与模式识别 · 计算机科学 2025-07-22 Zesong Yang , Ru Zhang , Jiale Shi , Zixiang Ai , Boming Zhao , Hujun Bao , Luwei Yang , Zhaopeng Cui

Current methods for 3D object reconstruction from a set of planar cross-sections still struggle to capture detailed topology or require a considerable number of cross-sections. In this paper, we present, to the best of our knowledge the…

计算机视觉与模式识别 · 计算机科学 2022-10-25 Azimkhon Ostonov

Patient-specific hemodynamics assessment could support diagnosis and treatment of neurovascular diseases. Currently, conventional medical imaging modalities are not able to accurately acquire high-resolution hemodynamic information that…

We propose a fast and accurate surface reconstruction algorithm for unorganized point clouds using an implicit representation. Recent learning methods are either single-object representations with small neural models that allow for high…

计算机视觉与模式识别 · 计算机科学 2025-06-11 Siddhant Ranade , Gonçalo Dias Pais , Ross Tyler Whitaker , Jacinto C. Nascimento , Pedro Miraldo , Srikumar Ramalingam

One of the key elements of reconstructing a 3D mesh from a monocular video is generating every frame's depth map. However, in the application of colonoscopy video reconstruction, producing good-quality depth estimation is challenging.…

图像与视频处理 · 电气工程与系统科学 2021-11-23 Yubo Zhang , Jan-Michael Frahm , Samuel Ehrenstein , Sarah K. McGill , Julian G. Rosenman , Shuxian Wang , Stephen M. Pizer

Point cloud reconstruction from raw point cloud has been an important topic in computer graphics for decades, especially due to its high demand in modeling and rendering applications. An important way to solve this problem is establishing a…

计算机视觉与模式识别 · 计算机科学 2025-03-17 Hui Tian , Kai Xu

Geometry is central to PDE-governed systems, motivating shape optimization and inversion. Classical pipelines conduct costly forward simulation with geometry processing, requiring substantial expert effort. Neural surrogates accelerate…

机器学习 · 计算机科学 2026-05-15 Guoze Sun , Tianya Miao , Haoyang Huang , Huaguan Chen , Han Wan , Rui Zhang , Hao Sun

This paper explores the problem of reconstructing temporally consistent surfaces from a 3D point cloud sequence without correspondence. To address this challenging task, we propose DynoSurf, an unsupervised learning framework integrating a…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Yuxin Yao , Siyu Ren , Junhui Hou , Zhi Deng , Juyong Zhang , Wenping Wang

High fidelity representation of shapes with arbitrary topology is an important problem for a variety of vision and graphics applications. Owing to their limited resolution, classical discrete shape representations using point clouds, voxels…

计算机视觉与模式识别 · 计算机科学 2020-12-15 Rahul Venkatesh , Sarthak Sharma , Aurobrata Ghosh , Laszlo Jeni , Maneesh Singh

We propose a method for reducing the spatial discretization error of coarse computational fluid dynamics (CFD) problems by enhancing the quality of low-resolution simulations using deep learning. We feed the model with fine-grid data after…

机器学习 · 计算机科学 2024-09-27 Jesus Gonzalez-Sieiro , David Pardo , Vincenzo Nava , Victor M. Calo , Markus Towara

We present Cortex Synth, a novel end-to-end differentiable framework for joint 3D skeleton geometry and topology synthesis from single 2D images. Our architecture introduces three key innovations: (1) A hierarchical graph attention…

计算机视觉与模式识别 · 计算机科学 2025-09-09 Mohamed Zayaan S

Recent works on implicit neural representations have made significant strides. Learning implicit neural surfaces using volume rendering has gained popularity in multi-view reconstruction without 3D supervision. However, accurately…

计算机视觉与模式识别 · 计算机科学 2022-11-22 Decai Chen , Peng Zhang , Ingo Feldmann , Oliver Schreer , Peter Eisert

Reconstructing the shape and spatially varying surface appearances of a physical-world object as well as its surrounding illumination based on 2D images (e.g., photographs) of the object has been a long-standing problem in computer vision…

计算机视觉与模式识别 · 计算机科学 2024-02-02 Cheng Sun , Guangyan Cai , Zhengqin Li , Kai Yan , Cheng Zhang , Carl Marshall , Jia-Bin Huang , Shuang Zhao , Zhao Dong

Neural ODEs (NODEs) are continuous-time neural networks (NNs) that can process data without the limitation of time intervals. They have advantages in learning and understanding the evolution of complex real dynamics. Many previous works…

机器学习 · 计算机科学 2024-11-05 Wenjie Mei , Dongzhe Zheng , Shihua Li