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In this paper, we propose a framework to reconstruct 3D models from raw scanned points by learning the prior knowledge of a specific class of objects. Unlike previous work that heuristically specifies particular regularities and defines…

计算几何 · 计算机科学 2017-01-13 Oussama Remil , Qian Xie , Xingyu Xie , Kai Xu , Jun Wang

Efficient and fast reconstruction of anatomical structures plays a crucial role in clinical practice. Minimizing retrieval and processing times not only potentially enhances swift response and decision-making in critical scenarios but also…

We propose a novel deep-learning framework for super-resolution ultrasound images and videos in terms of spatial resolution and line reconstruction. We up-sample the acquired low-resolution image through a vision-based interpolation method;…

计算机视觉与模式识别 · 计算机科学 2023-05-03 Simone Cammarasana , Paolo Nicolardi , Giuseppe Patanè

Creating 3D maps on robots and other mobile devices has become a reality in recent years. Online 3D reconstruction enables many exciting applications in robotics and AR/VR gaming. However, the reconstructions are noisy and generally…

计算机视觉与模式识别 · 计算机科学 2017-03-29 Maksym Dzitsiuk , Jürgen Sturm , Robert Maier , Lingni Ma , Daniel Cremers

Identifying spatially complete planar primitives from visual data is a crucial task in computer vision. Prior methods are largely restricted to either 2D segment recovery or simplifying 3D structures, even with extensive plane annotations.…

计算机视觉与模式识别 · 计算机科学 2025-03-11 Zheng Chen , Qingan Yan , Huangying Zhan , Changjiang Cai , Xiangyu Xu , Yuzhong Huang , Weihan Wang , Ziyue Feng , Yi Xu , Lantao Liu

Discretized techniques for vector tomographic reconstructions are prone to producing artifacts in the reconstructions. The quality of these reconstructions may further deteriorate as the amount of noise increases. In this work, we instead…

无序系统与神经网络 · 物理学 2024-12-16 Giorgi Butbaia , Jiadong Zang

While recent feed-forward 3D reconstruction models accelerate 3D reconstruction by jointly inferring dense geometry and camera poses in a single pass, their reliance on dense attention imposes a quadratic complexity, creating a prohibitive…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Weining Ren , Xiao Tan , Kai Han

Neural implicit reconstruction via volume rendering has demonstrated its effectiveness in recovering dense 3D surfaces. However, it is non-trivial to simultaneously recover meticulous geometry and preserve smoothness across regions with…

计算机视觉与模式识别 · 计算机科学 2025-04-09 Ziyu Tang , Weicai Ye , Yifan Wang , Di Huang , Hujun Bao , Tong He , Guofeng Zhang

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

Photo-realistic free-viewpoint rendering of real-world scenes using classical computer graphics techniques is challenging, because it requires the difficult step of capturing detailed appearance and geometry models. Recent studies have…

计算机视觉与模式识别 · 计算机科学 2021-01-08 Lingjie Liu , Jiatao Gu , Kyaw Zaw Lin , Tat-Seng Chua , Christian Theobalt

Accurately reconstructing dense and semantically annotated 3D meshes from monocular images remains a challenging task due to the lack of geometry guidance and imperfect view-dependent 2D priors. Though we have witnessed recent advancements…

计算机视觉与模式识别 · 计算机科学 2024-09-24 Zhenhua Du , Binbin Xu , Haoyu Zhang , Kai Huo , Shuaifeng Zhi

The reconstruction of indoor scenes from multi-view RGB images is challenging due to the coexistence of flat and texture-less regions alongside delicate and fine-grained regions. Recent methods leverage neural radiance fields aided by…

计算机视觉与模式识别 · 计算机科学 2024-08-14 Sheng Ye , Yubin Hu , Matthieu Lin , Yu-Hui Wen , Wang Zhao , Yong-Jin Liu , Wenping Wang

Retrieving 3D bone anatomy from biplanar X-ray images is crucial since it can significantly reduce radiation exposure compared to traditional CT-based methods. Although various deep learning models have been proposed to address this complex…

图像与视频处理 · 电气工程与系统科学 2024-07-23 Jixiang Chen , Yiqun Lin , Haoran Sun , Xiaomeng Li

We present an approach for the planar surface reconstruction of a scene from images with limited overlap. This reconstruction task is challenging since it requires jointly reasoning about single image 3D reconstruction, correspondence…

计算机视觉与模式识别 · 计算机科学 2022-08-09 Samir Agarwala , Linyi Jin , Chris Rockwell , David F. Fouhey

Inspired by the recent success of methods that employ shape priors to achieve robust 3D reconstructions, we propose a novel recurrent neural network architecture that we call the 3D Recurrent Reconstruction Neural Network (3D-R2N2). The…

计算机视觉与模式识别 · 计算机科学 2016-04-05 Christopher B. Choy , Danfei Xu , JunYoung Gwak , Kevin Chen , Silvio Savarese

Neural representations have emerged as a new paradigm for applications in rendering, imaging, geometric modeling, and simulation. Compared to traditional representations such as meshes, point clouds, or volumes they can be flexibly…

计算机视觉与模式识别 · 计算机科学 2021-05-07 Julien N. P. Martel , David B. Lindell , Connor Z. Lin , Eric R. Chan , Marco Monteiro , Gordon Wetzstein

We present a new approach to 3D object representation where a neural network encodes the geometry of an object directly into the weights and biases of a second 'mapping' network. This mapping network can be used to reconstruct an object by…

机器学习 · 计算机科学 2020-04-07 Eric Mitchell , Selim Engin , Volkan Isler , Daniel D Lee

Medical imaging is limited by acquisition time and scanning equipment. CT and MR volumes, reconstructed with thicker slices, are anisotropic with high in-plane resolution and low through-plane resolution. We reveal an intriguing phenomenon…

图像与视频处理 · 电气工程与系统科学 2024-05-07 Haofei Song , Xintian Mao , Jing Yu , Qingli Li , Yan Wang

X-ray, known for its ability to reveal internal structures of objects, is expected to provide richer information for 3D reconstruction than visible light. Yet, existing neural radiance fields (NeRF) algorithms overlook this important nature…

图像与视频处理 · 电气工程与系统科学 2024-03-26 Yuanhao Cai , Jiahao Wang , Alan Yuille , Zongwei Zhou , Angtian Wang

We present a volume rendering-based neural surface reconstruction method that takes as few as three disparate RGB images as input. Our key idea is to regularize the reconstruction, which is severely ill-posed and leaving significant gaps…

计算机视觉与模式识别 · 计算机科学 2023-11-03 Aditya Vora , Akshay Gadi Patil , Hao Zhang