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We present PixTrack, a vision based object pose tracking framework using novel view synthesis and deep feature-metric alignment. We follow an SfM-based relocalization paradigm where we use a Neural Radiance Field to canonically represent…

Computer Vision and Pattern Recognition · Computer Science 2024-02-16 Prajwal Chidananda , Saurabh Nair , Douglas Lee , Adrian Kaehler

The process of tracking human anatomy in computer vision is referred to pose estimation, and it is used in fields ranging from gaming to surveillance. Three-dimensional pose estimation traditionally requires advanced equipment, such as…

Computer Vision and Pattern Recognition · Computer Science 2022-08-25 Alice Ruget , Max Tyler , Germán Mora Martín , Stirling Scholes , Feng Zhu , Istvan Gyongy , Brent Hearn , Steve McLaughlin , Abderrahim Halimi , Jonathan Leach

We present DynamicPose, a retraining-free 6D pose tracking framework that improves tracking robustness in fast-moving camera and object scenarios. Previous work is mainly applicable to static or quasi-static scenes, and its performance…

Computer Vision and Pattern Recognition · Computer Science 2025-08-19 Tingbang Liang , Yixin Zeng , Jiatong Xie , Boyu Zhou

Real-time applications for autonomous operations depend largely on fast and robust vision-based localization systems. Since image processing tasks require processing large amounts of data, the computational resources often limit the…

Computer Vision and Pattern Recognition · Computer Science 2023-10-26 Gerald Ebmer , Adam Loch , Minh Nhat Vu , Germain Haessig , Roberto Mecca , Markus Vincze , Christian Hartl-Nesic , Andreas Kugi

Are camera poses necessary for multi-view 3D modeling? Existing approaches predominantly assume access to accurate camera poses. While this assumption might hold for dense views, accurately estimating camera poses for sparse views is often…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Hanwen Jiang , Zhenyu Jiang , Yue Zhao , Qixing Huang

State-of-the-art research of traditional computer vision is increasingly leveraged in the surgical domain. A particular focus in computer-assisted surgery is to replace marker-based tracking systems for instrument localization with pure…

Computer Vision and Pattern Recognition · Computer Science 2025-04-11 Jonas Hein , Nicola Cavalcanti , Daniel Suter , Lukas Zingg , Fabio Carrillo , Lilian Calvet , Mazda Farshad , Marc Pollefeys , Nassir Navab , Philipp Fürnstahl

Localisation in GPS-denied environments is challenging and many existing solutions have infrastructural and on-site calibration requirements. This paper tackles these challenges by proposing a localisation system that is infrastructure-free…

Robotics · Computer Science 2023-11-07 Xueyan Oh , Ryan Lim , Shaohui Foong , U-Xuan Tan

Visual localization is the task of accurate camera pose estimation in a known scene. It is a key problem in computer vision and robotics, with applications including self-driving cars, Structure-from-Motion, SLAM, and Mixed Reality.…

Computer Vision and Pattern Recognition · Computer Science 2019-03-19 Torsten Sattler , Qunjie Zhou , Marc Pollefeys , Laura Leal-Taixe

Event cameras are a paradigm shift in camera technology. Instead of full frames, the sensor captures a sparse set of events caused by intensity changes. Since only the changes are transferred, those cameras are able to capture quick…

Computer Vision and Pattern Recognition · Computer Science 2017-03-22 Christian Reinbacher , Gottfried Munda , Thomas Pock

Markerless tracking of hands and fingers is a promising enabler for human-computer interaction. However, adoption has been limited because of tracking inaccuracies, incomplete coverage of motions, low framerate, complex camera setups, and…

Computer Vision and Pattern Recognition · Computer Science 2016-02-15 Srinath Sridhar , Franziska Mueller , Antti Oulasvirta , Christian Theobalt

This paper addresses the problem of vision-based pedestrian localization, which estimates a pedestrian's location using images and camera parameters. In practice, however, calibrated camera parameters often deviate from the ground truth,…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Wanyu Zhang , Jiaqi Zhang , Dongdong Ge , Yu Lin , Huiwen Yang , Huikang Liu , Yinyu Ye

Camera, and associated with its objects within the field of view, localization could benefit many computer vision fields, such as autonomous driving, robot navigation, and augmented reality (AR). In this survey, we first introduce specific…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Meng Xu , Youchen Wang , Bin Xu , Jun Zhang , Jian Ren , Stefan Poslad , Pengfei Xu

Estimating the relative pose between two cameras is a fundamental step in many applications such as Structure-from-Motion. The common approach to relative pose estimation is to apply a minimal solver inside a RANSAC loop. Highly efficient…

Computer Vision and Pattern Recognition · Computer Science 2025-05-05 Viktor Kocur , Charalambos Tzamos , Yaqing Ding , Zuzana Berger Haladova , Torsten Sattler , Zuzana Kukelova

Circular markers are planar markers which offer great performances for detection and pose estimation. For an uncalibrated camera with an unknown focal length, at least the images of at least two coplanar circles are generally required to…

Computer Vision and Pattern Recognition · Computer Science 2018-04-16 Mariyanayagam Damien , Gurdjos Pierre , Chambon Sylvie , Brunet Florent , Charvillat Vincent

We describe a learning-based system that estimates the camera position and orientation from a single input image relative to a known environment. The system is flexible w.r.t. the amount of information available at test and at training…

Computer Vision and Pattern Recognition · Computer Science 2020-10-12 Eric Brachmann , Carsten Rother

In sports, such as alpine skiing, coaches would like to know the speed and various biomechanical variables of their athletes and competitors. Existing methods use either body-worn sensors, which are cumbersome to setup, or manual image…

Computer Vision and Pattern Recognition · Computer Science 2019-09-02 Roman Bachmann , Jörg Spörri , Pascal Fua , Helge Rhodin

This paper presents a method for carrying fair comparisons of the accuracy of pose estimation using fiducial markers. These comparisons rely on large sets of high-fidelity synthetic images enabling deep exploration of the 6 degrees of…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Guillaume J. Laurent , Patrick Sandoz

The Rational Polynomial Camera (RPC) model can be used to describe a variety of image acquisition systems in remote sensing, notably optical and Synthetic Aperture Radar (SAR) sensors. RPC functions relate 3D to 2D coordinates and vice…

Image and Video Processing · Electrical Eng. & Systems 2022-03-17 Roland Akiki , Roger Marí , Carlo de Franchis , Jean-Michel Morel , Gabriele Facciolo

In this article we purpose a novel method for planar pose estimation of mobile robots. This method is based on an analytic solution (which we derived) for the projection of 3D straight lines, onto the mirror of Non-Central Catadioptric…

Robotics · Computer Science 2016-07-11 Andre Mateus , Pedro Miraldo , Pedro U. Lima

We propose two minimal solutions to the problem of relative pose estimation of (i) a calibrated camera from four points in two views and (ii) a calibrated generalized camera from five points in two views. In both cases, the relative…

Computer Vision and Pattern Recognition · Computer Science 2019-02-01 Evgeniy Martyushev , Bo Li