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We present an approach to solving hard geometric optimization problems in the RANSAC framework. The hard minimal problems arise from relaxing the original geometric optimization problem into a minimal problem with many spurious solutions.…

Computer Vision and Pattern Recognition · Computer Science 2021-12-08 Petr Hruby , Timothy Duff , Anton Leykin , Tomas Pajdla

Pairwise pose estimation from images with little or no overlap is an open challenge in computer vision. Existing methods, even those trained on large-scale datasets, struggle in these scenarios due to the lack of identifiable…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Ruojin Cai , Jason Y. Zhang , Philipp Henzler , Zhengqi Li , Noah Snavely , Ricardo Martin-Brualla

Human pose estimation is an important topic in computer vision with many applications including gesture and activity recognition. However, pose estimation from image is challenging due to appearance variations, occlusions, clutter…

Computer Vision and Pattern Recognition · Computer Science 2018-08-07 Lipeng Ke , Ming-Ching Chang , Honggang Qi , Siwei Lyu

In this paper, we address the problem of camera pose estimation in outdoor and indoor scenarios. In comparison to the currently top-performing methods that rely on 2D to 3D matching, we propose a model that can directly regress the camera…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Tony Ng , Adrian Lopez-Rodriguez , Vassileios Balntas , Krystian Mikolajczyk

We devise a graph attention network-based approach for learning a scene triangle mesh representation in order to estimate an image camera position in a dynamic environment. Previous approaches built a scene-dependent model that explicitly…

Computer Vision and Pattern Recognition · Computer Science 2022-10-03 Mohamed Amine Ouali , Mohamed Bouguessa , Riadh Ksantini

We propose a new deep learning based approach for camera relocalization. Our approach localizes a given query image by using a convolutional neural network (CNN) for first retrieving similar database images and then predicting the relative…

Computer Vision and Pattern Recognition · Computer Science 2017-08-02 Zakaria Laskar , Iaroslav Melekhov , Surya Kalia , Juho Kannala

The two-stage object pose estimation paradigm first detects semantic keypoints on the image and then estimates the 6D pose by minimizing reprojection errors. Despite performing well on standard benchmarks, existing techniques offer no…

Computer Vision and Pattern Recognition · Computer Science 2023-03-23 Heng Yang , Marco Pavone

Given the image collection of an object, we aim at building a real-time image-based pose estimation method, which requires neither its CAD model nor hours of object-specific training. Recent NeRF-based methods provide a promising solution…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Ronghan Chen , Yang Cong , Yu Ren

We propose a new method for estimating the relative pose between two images, where we jointly learn keypoint detection, description extraction, matching and robust pose estimation. While our architecture follows the traditional pipeline for…

Computer Vision and Pattern Recognition · Computer Science 2021-04-05 Antoine Fond , Luca Del Pero , Nikola Sivacki , Marco Paladini

3D human pose estimation has been a long-standing challenge in computer vision and graphics, where multi-view methods have significantly progressed but are limited by the tedious calibration processes. Existing multi-view methods are…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Boyuan Jiang , Lei Hu , Shihong Xia

We present a novel two-view geometry estimation framework which is based on a differentiable robust loss function fitting. We propose to treat the robust fundamental matrix estimation as an implicit layer, which allows us to avoid…

Computer Vision and Pattern Recognition · Computer Science 2024-10-24 Vladislav Pyatov , Iaroslav Koshelev , Stamatis Lefkimmiatis

Repetitive counting (RepCount) is critical in various applications, such as fitness tracking and rehabilitation. Previous methods have relied on the estimation of red-green-and-blue (RGB) frames and body pose landmarks to identify the…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Haodong Chen , Ming C. Leu , Md Moniruzzaman , Zhaozheng Yin , Solmaz Hajmohammadi

We propose a Convolutional Neural Network (CNN)-based model "RotationNet," which takes multi-view images of an object as input and jointly estimates its pose and object category. Unlike previous approaches that use known viewpoint labels…

Computer Vision and Pattern Recognition · Computer Science 2018-03-26 Asako Kanezaki , Yasuyuki Matsushita , Yoshifumi Nishida

Estimating the relative rigid pose between two RGB-D scans of the same underlying environment is a fundamental problem in computer vision, robotics, and computer graphics. Most existing approaches allow only limited maximum relative pose…

Computer Vision and Pattern Recognition · Computer Science 2019-01-08 Zhenpei Yang , Jeffrey Z. Pan , Linjie Luo , Xiaowei Zhou , Kristen Grauman , Qixing Huang

6D object pose estimation, which predicts the transformation of an object relative to the camera, remains challenging for unseen objects. Existing approaches typically rely on explicitly constructing feature correspondences between the…

Computer Vision and Pattern Recognition · Computer Science 2025-12-12 Jianqi Chen , Biao Zhang , Xiangjun Tang , Peter Wonka

Current state-of-the-art methods cast monocular 3D human pose estimation as a learning problem by training neural networks on large data sets of images and corresponding skeleton poses. In contrast, we propose an approach that can exploit…

Computer Vision and Pattern Recognition · Computer Science 2020-10-14 Simon Jenni , Paolo Favaro

This paper introduces a modular, non-deep learning method for filtering and refining sparse correspondences in image matching. Assuming that motion flow within the scene can be approximated by local homography transformations, matches are…

Computer Vision and Pattern Recognition · Computer Science 2025-12-24 Fabio Bellavia , Zhenjun Zhao , Luca Morelli , Fabio Remondino

In this paper we present a novel approach to global localization using an RGB-D camera in maps of visual features. For large maps, the performance of pure image matching techniques decays in terms of robustness and computational cost.…

Computer Vision and Pattern Recognition · Computer Science 2015-02-03 Miguel Heredia , Felix Endres , Wolfram Burgard , Rafael Sanz

Image-based localization, or camera relocalization, is a fundamental problem in computer vision and robotics, and it refers to estimating camera pose from an image. Recent state-of-the-art approaches use learning based methods, such as…

Computer Vision and Pattern Recognition · Computer Science 2018-06-26 Xiaotian Li , Juha Ylioinas , Juho Kannala

Image Matching is a core component of all best-performing algorithms and pipelines in 3D vision. Yet despite matching being fundamentally a 3D problem, intrinsically linked to camera pose and scene geometry, it is typically treated as a 2D…

Computer Vision and Pattern Recognition · Computer Science 2024-06-17 Vincent Leroy , Yohann Cabon , Jérôme Revaud