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We propose a Pose-Free Large Reconstruction Model (PF-LRM) for reconstructing a 3D object from a few unposed images even with little visual overlap, while simultaneously estimating the relative camera poses in ~1.3 seconds on a single A100…

计算机视觉与模式识别 · 计算机科学 2023-11-27 Peng Wang , Hao Tan , Sai Bi , Yinghao Xu , Fujun Luan , Kalyan Sunkavalli , Wenping Wang , Zexiang Xu , Kai Zhang

Geometric foundation models hold promise for unconstrained dense geometry prediction from uncalibrated images. However, in current feed-forward designs, their predicted confidence scores are heuristic, lack probabilistic interpretation, and…

计算机视觉与模式识别 · 计算机科学 2026-05-20 Zihao Zhu , Wenyuan Zhao , Nuo Chen , Chao Tian , Zhiwen Fan

In the realm of 3D reconstruction from 2D images, a persisting challenge is to achieve high-precision reconstructions devoid of 3D Ground Truth data reliance. We present UNeR3D, a pioneering unsupervised methodology that sets a new standard…

计算机视觉与模式识别 · 计算机科学 2023-12-13 Hongbin Lin , Juangui Xu , Qingfeng Xu , Zhengyu Hu , Handing Xu , Yunzhi Chen , Yongjun Hu , Zhenguo Nie

Reconstructing an accurate 3D object model from a few image observations remains a challenging problem in computer vision. State-of-the-art approaches typically assume accurate camera poses as input, which could be difficult to obtain in…

计算机视觉与模式识别 · 计算机科学 2022-05-17 Zhenpei Yang , Zhile Ren , Miguel Angel Bautista , Zaiwei Zhang , Qi Shan , Qixing Huang

We present Wid3R, a feed-forward neural network for multi-view visual geometry reconstruction that supports wide field-of-view camera models. Unlike existing methods that assume rectified or pinhole inputs, Wid3R directly models wide-angle…

计算机视觉与模式识别 · 计算机科学 2026-03-30 Dongki Jung , Jaehoon Choi , Adil Qureshi , Somi Jeong , Dinesh Manocha , Suyong Yeon

Modern Recurrent Neural Networks have become a competitive architecture for 3D reconstruction due to their linear-time complexity. However, their performance degrades significantly when applied beyond the training context length, revealing…

计算机视觉与模式识别 · 计算机科学 2026-03-04 Xingyu Chen , Yue Chen , Yuliang Xiu , Andreas Geiger , Anpei Chen

Feed-forward 3D modeling has emerged as a promising approach for rapid and high-quality 3D reconstruction. In particular, directly generating explicit 3D representations, such as 3D Gaussian splatting, has attracted significant attention…

计算机视觉与模式识别 · 计算机科学 2025-10-20 Gyeongjin Kang , Seungtae Nam , Seungkwon Yang , Xiangyu Sun , Sameh Khamis , Abdelrahman Mohamed , Eunbyung Park

This paper presents a novel approach for sparse 3D reconstruction by leveraging the expressive power of Neural Radiance Fields (NeRFs) and fast transfer of their features to learn accurate occupancy fields. Existing 3D reconstruction…

计算机视觉与模式识别 · 计算机科学 2024-10-01 Shubhendu Jena , Franck Multon , Adnane Boukhayma

Modeling 3D articulated objects with realistic geometry, textures, and kinematics is essential for a wide range of applications. However, existing optimization-based reconstruction methods often require dense multi-view inputs and expensive…

计算机视觉与模式识别 · 计算机科学 2025-11-17 Sylvia Yuan , Ruoxi Shi , Xinyue Wei , Xiaoshuai Zhang , Hao Su , Minghua Liu

Multi-view human mesh recovery (HMR) is broadly deployed in diverse domains where high accuracy and strong generalization are essential. Existing approaches can be broadly grouped into geometry-based and learning-based methods. However,…

计算机视觉与模式识别 · 计算机科学 2026-04-02 Haoyu Xie , Shengkai Xu , Cheng Guo , Muhammad Usama Saleem , Wenhan Wu , Chen Chen , Ahmed Helmy , Pu Wang , Hongfei Xue

Despite recent advances in feed-forward 3D Gaussian Splatting, generalizable 3D reconstruction remains challenging, particularly in multi-view correspondence modeling. Existing approaches face a fundamental trade-off: explicit methods…

计算机视觉与模式识别 · 计算机科学 2025-08-06 Heng Jia , Linchao Zhu , Na Zhao

Generating high-quality 3D content from text, single images, or sparse view images remains a challenging task with broad applications. Existing methods typically employ multi-view diffusion models to synthesize multi-view images, followed…

计算机视觉与模式识别 · 计算机科学 2025-06-03 Junlin Han , Jianyuan Wang , Andrea Vedaldi , Philip Torr , Filippos Kokkinos

3D reconstruction and view synthesis are foundational problems in computer vision, graphics, and immersive technologies such as augmented reality (AR), virtual reality (VR), and digital twins. Traditional methods rely on computationally…

The recovery of 3D shape and pose from 2D landmarks stemming from a large ensemble of images can be viewed as a non-rigid structure from motion (NRSfM) problem. Classical NRSfM approaches, however, are problematic as they rely on heuristic…

计算机视觉与模式识别 · 计算机科学 2021-04-01 Chaoyang Wang , Chen-Hsuan Lin , Simon Lucey

In this paper, we present a new method for multi-view geometric reconstruction. In recent years, large vision models have rapidly developed, performing excellently across various tasks and demonstrating remarkable generalization…

计算机视觉与模式识别 · 计算机科学 2025-03-19 Haoyu Guo , He Zhu , Sida Peng , Haotong Lin , Yunzhi Yan , Tao Xie , Wenguan Wang , Xiaowei Zhou , Hujun Bao

Recently, deep learning based 3D face reconstruction methods have shown promising results in both quality and efficiency.However, training deep neural networks typically requires a large volume of data, whereas face images with ground-truth…

计算机视觉与模式识别 · 计算机科学 2020-04-10 Yu Deng , Jiaolong Yang , Sicheng Xu , Dong Chen , Yunde Jia , Xin Tong

Large scale 3D scene reconstruction is important for applications such as virtual reality and simulation. Existing neural rendering approaches (e.g., NeRF, 3DGS) have achieved realistic reconstructions on large scenes, but optimize per…

计算机视觉与模式识别 · 计算机科学 2024-10-01 Yun Chen , Jingkang Wang , Ze Yang , Sivabalan Manivasagam , Raquel Urtasun

3D reconstruction from a single 2D image was extensively covered in the literature but relies on depth supervision at training time, which limits its applicability. To relax the dependence to depth we propose SceneRF, a self-supervised…

计算机视觉与模式识别 · 计算机科学 2023-08-28 Anh-Quan Cao , Raoul de Charette

Multi-view stereo reconstruction (MVS) in the wild requires to first estimate the camera parameters e.g. intrinsic and extrinsic parameters. These are usually tedious and cumbersome to obtain, yet they are mandatory to triangulate…

计算机视觉与模式识别 · 计算机科学 2024-12-03 Shuzhe Wang , Vincent Leroy , Yohann Cabon , Boris Chidlovskii , Jerome Revaud

3D scene reconstruction is a long-standing vision task. Existing approaches can be categorized into geometry-based and learning-based methods. The former leverages multi-view geometry but can face catastrophic failures due to the reliance…

计算机视觉与模式识别 · 计算机科学 2023-08-11 Guangkai Xu , Wei Yin , Hao Chen , Chunhua Shen , Kai Cheng , Feng Zhao