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In this paper, we present an implicit surface reconstruction method with 3D Gaussian Splatting (3DGS), namely 3DGSR, that allows for accurate 3D reconstruction with intricate details while inheriting the high efficiency and rendering…

计算机视觉与模式识别 · 计算机科学 2025-01-24 Xiaoyang Lyu , Yang-Tian Sun , Yi-Hua Huang , Xiuzhe Wu , Ziyi Yang , Yilun Chen , Jiangmiao Pang , Xiaojuan Qi

In this paper, we present a generalizable method for 3D surface reconstruction from raw point clouds or pre-estimated 3D Gaussians by 3DGS from RGB images. Unlike existing coordinate-based methods which are often computationally intensive…

计算机视觉与模式识别 · 计算机科学 2025-08-14 Shenxing Wei , Jinxi Li , Yafei Yang , Siyuan Zhou , Bo Yang

Intraoperative shape reconstruction of organs from endoscopic camera images is a complex yet indispensable technique for image-guided surgery. To address the uncertainty in reconstructing entire shapes from single-viewpoint occluded images,…

计算机视觉与模式识别 · 计算机科学 2023-01-27 Tomoki Oya , Megumi Nakao , Tetsuya Matsuda

In this paper, we introduce a set of simple yet effective TOken REduction (TORE) strategies for Transformer-based Human Mesh Recovery from monocular images. Current SOTA performance is achieved by Transformer-based structures. However, they…

计算机视觉与模式识别 · 计算机科学 2023-08-11 Zhiyang Dou , Qingxuan Wu , Cheng Lin , Zeyu Cao , Qiangqiang Wu , Weilin Wan , Taku Komura , Wenping Wang

Signed distance field (SDF) is a prominent implicit representation of 3D meshes. Methods that are based on such representation achieved state-of-the-art 3D shape reconstruction quality. However, these methods struggle to reconstruct…

计算机视觉与模式识别 · 计算机科学 2020-10-21 Kacper Kania , Maciej Zięba , Tomasz Kajdanowicz

Simulations involving free surfaces and fluid interfaces are important in many areas of engineering. There is, however, still a need for improved simulation methods. Recently, a new efficient geometric VOF method called isoAdvector for…

流体动力学 · 物理学 2019-01-23 Henning Scheufler , Johan Roenby

Despite recent advances in reconstructing an organic model with the neural signed distance function (SDF), the high-fidelity reconstruction of a CAD model directly from low-quality unoriented point clouds remains a significant challenge. In…

计算机视觉与模式识别 · 计算机科学 2024-04-23 Qiujie Dong , Rui Xu , Pengfei Wang , Shuangmin Chen , Shiqing Xin , Xiaohong Jia , Wenping Wang , Changhe Tu

We address the problem of clothed human reconstruction from a single image or uncalibrated multi-view images. Existing methods struggle with reconstructing detailed geometry of a clothed human and often require a calibrated setting for…

计算机视觉与模式识别 · 计算机科学 2023-04-04 Yukang Cao , Kai Han , Kwan-Yee K. Wong

Recent advances in learning 3D shapes using neural implicit functions have achieved impressive results by breaking the previous barrier of resolution and diversity for varying topologies. However, most of such approaches are limited to…

计算机视觉与模式识别 · 计算机科学 2022-06-01 Weikai Chen , Cheng Lin , Weiyang Li , Bo Yang

We propose Geo-PIFu, a method to recover a 3D mesh from a monocular color image of a clothed person. Our method is based on a deep implicit function-based representation to learn latent voxel features using a structure-aware 3D U-Net, to…

计算机视觉与模式识别 · 计算机科学 2020-12-08 Tong He , John Collomosse , Hailin Jin , Stefano Soatto

Reconstructing translucent objects from multi-view images is a difficult problem. Previously, researchers have used differentiable path tracing and the neural implicit field, which require relatively large computational costs. Recently,…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Youwen Yuan , Xi Zhao

Although 3D Gaussian Splatting (3DGS) has recently made progress in 3D human reconstruction, it primarily relies on 2D pixel-level supervision, overlooking the geometric complexity and topological relationships of different body parts. To…

计算机视觉与模式识别 · 计算机科学 2024-06-25 Hongsheng Wang , Weiyue Zhang , Sihao Liu , Xinrui Zhou , Jing Li , Zhanyun Tang , Shengyu Zhang , Fei Wu , Feng Lin

In this paper, we introduce silhouette tomography, a novel formulation of X-ray computed tomography that relies only on the geometry of the imaging system. We formulate silhouette tomography mathematically and provide a simple method for…

图像与视频处理 · 电气工程与系统科学 2024-02-13 Evan Bell , Michael T. McCann , Marc Klasky

Accurate segmentation of tubular and curvilinear structures, such as blood vessels, neurons, and road networks, is crucial in various applications. A key challenge is ensuring topological correctness while maintaining computational…

图像与视频处理 · 电气工程与系统科学 2025-03-21 Siyi Wu , Leyi Zhao , Haotian Ma , Xinyuan Song

This paper proposes the use of an end-to-end Convolutional Neural Network for direct reconstruction of the 3D geometry of humans via volumetric regression. The proposed method does not require the fitting of a shape model and can be trained…

计算机视觉与模式识别 · 计算机科学 2018-09-12 Aaron S. Jackson , Chris Manafas , Georgios Tzimiropoulos

Medical images, especially volumetric images, are of high resolution and often exceed the capacity of standard desktop GPUs. As a result, most deep learning-based medical image analysis tasks require the input images to be downsampled,…

图像与视频处理 · 电气工程与系统科学 2021-08-29 Jianning Li , Antonio Pepe , Christina Gsaxner , Yuan Jin , Jan Egger

Implicit neural field generating signed distance field representations (SDFs) of 3D shapes have shown remarkable progress in 3D shape reconstruction and generation. We introduce a new paradigm for neural field representations of 3D scenes;…

计算机视觉与模式识别 · 计算机科学 2022-11-28 Angela Dai , Matthias Nießner

SDF-based differential rendering frameworks have achieved state-of-the-art multiview 3D shape reconstruction. In this work, we re-examine this family of approaches by minimally reformulating its core appearance model in a way that…

计算机视觉与模式识别 · 计算机科学 2025-03-26 Briac Toussaint , Diego Thomas , Jean-Sébastien Franco

Recent work achieved impressive progress towards joint reconstruction of hands and manipulated objects from monocular color images. Existing methods focus on two alternative representations in terms of either parametric meshes or signed…

计算机视觉与模式识别 · 计算机科学 2022-07-27 Zerui Chen , Yana Hasson , Cordelia Schmid , Ivan Laptev

We present VoroUDF, an algorithm for reconstructing high-quality triangle meshes from Unsigned Distance Fields (UDFs). Our algorithm supports non-manifold geometry, sharp features, and open boundaries, without relying on error-prone…

图形学 · 计算机科学 2026-02-06 Ningna Wang , Zilong Wang , Xiana Carrera , Xiaohu Guo , Silvia Sellán