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We study the challenging problem of estimating the relative pose of three calibrated cameras from four point correspondences. We propose novel efficient solutions to this problem that are based on the simple idea of using four…

计算机视觉与模式识别 · 计算机科学 2025-11-07 Charalambos Tzamos , Viktor Kocur , Yaqing Ding , Daniel Barath , Zuzana Berger Haladova , Torsten Sattler , Zuzana Kukelova

3D Gaussian Splatting (3DGS) has recently emerged as a powerful scene representation and is increasingly used for visual localization and pose refinement. However, despite its high-quality differentiable rendering, the robustness of…

计算机视觉与模式识别 · 计算机科学 2026-03-18 Mangyu Kong , Jaewon Lee , Seongwon Lee , Euntai Kim

We present a novel solution to the camera pose estimation problem, where rotation and translation of a camera between two views are estimated from matched feature points in the images. The camera pose estimation problem is traditionally…

计算机视觉与模式识别 · 计算机科学 2018-07-31 Kaveh Fathian , J. Pablo Ramirez-Paredes , Emily A. Doucette , J. Willard Curtis , Nicholas R. Gans

Detecting 3D lanes from the camera is a rising problem for autonomous vehicles. In this task, the correct camera pose is the key to generating accurate lanes, which can transform an image from perspective-view to the top-view. With this…

计算机视觉与模式识别 · 计算机科学 2022-01-03 Ruijin Liu , Dapeng Chen , Tie Liu , Zhiliang Xiong , Zejian Yuan

Absolute Pose Regression (APR) has emerged as a compelling paradigm for visual localization. However, APR models typically operate as black boxes, directly regressing a 6-DoF pose from a query image, which can lead to memorizing training…

计算机视觉与模式识别 · 计算机科学 2026-05-20 Changyang Li , Xuejian Ma , Lixiang Liu , Zhan Li , Qingan Yan , Yi Xu

Blind Perspective-n-Point (PnP) is the problem of estimating the position and orientation of a camera relative to a scene, given 2D image points and 3D scene points, without prior knowledge of the 2D-3D correspondences. Solving for pose and…

计算机视觉与模式识别 · 计算机科学 2020-09-09 Dylan Campbell , Liu Liu , Stephen Gould

In the domain of 3D Human Pose Estimation, which finds widespread daily applications, the requirement for convenient acquisition equipment continues to grow. To satisfy this demand, we set our sights on a short-baseline binocular setting…

计算机视觉与模式识别 · 计算机科学 2024-08-07 Xiaoyue Wan , Zhuo Chen , Yiming Bao , Xu Zhao

We consider the problem of relative pose regression in visual relocalization. Recently, several promising approaches have emerged in this area. We claim that even though they demonstrate on the same datasets using the same split to train…

计算机视觉与模式识别 · 计算机科学 2020-09-25 Amir Shalev , Omer Achrack , Brian Fulkerson , Ben-Zion Bobrovsky

3D human pose estimation involves reconstructing the human skeleton by detecting the body joints. Accurate and efficient solutions are required for several real-world applications including animation, human-robot interaction, surveillance,…

计算机视觉与模式识别 · 计算机科学 2025-06-11 Ana Filipa Rodrigues Nogueira , Hélder P. Oliveira , Luís F. Teixeira

Two-view structure-from-motion (SfM) is the cornerstone of 3D reconstruction and visual SLAM. Existing deep learning-based approaches formulate the problem by either recovering absolute pose scales from two consecutive frames or predicting…

计算机视觉与模式识别 · 计算机科学 2021-04-02 Jianyuan Wang , Yiran Zhong , Yuchao Dai , Stan Birchfield , Kaihao Zhang , Nikolai Smolyanskiy , Hongdong Li

The vast majority of modern consumer-grade cameras employ a rolling shutter mechanism. In dynamic geometric computer vision applications such as visual SLAM, the so-called rolling shutter effect therefore needs to be properly taken into…

计算机视觉与模式识别 · 计算机科学 2016-05-03 Yuchao Dai , Hongdong Li , Laurent Kneip

In this work we address the challenging problem of 3D human pose estimation from single images. Recent approaches learn deep neural networks to regress 3D pose directly from images. One major challenge for such methods, however, is the…

计算机视觉与模式识别 · 计算机科学 2017-09-07 Umar Iqbal , Andreas Doering , Hashim Yasin , Björn Krüger , Andreas Weber , Juergen Gall

The rapid development of multi-view 3D human pose estimation (HPE) is attributed to the maturation of monocular 2D HPE and the geometry of 3D reconstruction. However, 2D detection outliers in occluded views due to neglect of view…

计算机视觉与模式识别 · 计算机科学 2023-02-24 Xiaoyue Wan , Zhuo Chen , Xu Zhao

Determining the 3D orientations of an object in an image, known as single-image pose estimation, is a crucial task in 3D vision applications. Existing methods typically learn 3D rotations parametrized in the spatial domain using Euler…

计算机视觉与模式识别 · 计算机科学 2024-11-05 Jongmin Lee , Minsu Cho

We propose an unsupervised vision-based system to estimate the joint configurations of the robot arm from a sequence of RGB or RGB-D images without knowing the model a priori, and then adapt it to the task of category-independent…

计算机视觉与模式识别 · 计算机科学 2020-12-02 Qihao Liu , Weichao Qiu , Weiyao Wang , Gregory D. Hager , Alan L. Yuille

We present an approach to recover absolute 3D human poses from multi-view images by incorporating multi-view geometric priors in our model. It consists of two separate steps: (1) estimating the 2D poses in multi-view images and (2)…

计算机视觉与模式识别 · 计算机科学 2019-09-04 Haibo Qiu , Chunyu Wang , Jingdong Wang , Naiyan Wang , Wenjun Zeng

We present iFusion, a novel 3D object reconstruction framework that requires only two views with unknown camera poses. While single-view reconstruction yields visually appealing results, it can deviate significantly from the actual object,…

计算机视觉与模式识别 · 计算机科学 2023-12-29 Chin-Hsuan Wu , Yen-Chun Chen , Bolivar Solarte , Lu Yuan , Min Sun

Existing approaches for multi-view multi-person 3D pose estimation explicitly establish cross-view correspondences to group 2D pose detections from multiple camera views and solve for the 3D pose estimation for each person. Establishing…

计算机视觉与模式识别 · 计算机科学 2021-04-07 Jiahao Lin , Gim Hee Lee

3D pose estimation from sparse multi-views is a critical task for numerous applications, including action recognition, sports analysis, and human-robot interaction. Optimization-based methods typically follow a two-stage pipeline, first…

计算机视觉与模式识别 · 计算机科学 2026-01-15 Tony Danjun Wang , Tolga Birdal , Nassir Navab , Lennart Bastian

The fundamental matrix and trifocal tensor are convenient algebraic representations of the epipolar geometry of two and three view configurations, respectively. The estimation of these entities is central to most reconstruction algorithms,…

计算机视觉与模式识别 · 计算机科学 2011-04-01 Stuart B. Heinrich , Wesley E. Snyder