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Most existing approaches for visual localization either need a detailed 3D model of the environment or, in the case of learning-based methods, must be retrained for each new scene. This can either be very expensive or simply impossible for…

Robotics · Computer Science 2021-06-22 Dominik Winkelbauer , Maximilian Denninger , Rudolph Triebel

The standard approach for visual place recognition is to use global image descriptors to retrieve the most similar database images for a given query image. The results can then be further improved with re-ranking methods that re-order the…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Gustav Hanning , Gabrielle Flood , Viktor Larsson

We present a comprehensive study and evaluation of existing single image dehazing algorithms, using a new large-scale benchmark consisting of both synthetic and real-world hazy images, called REalistic Single Image DEhazing (RESIDE). RESIDE…

Computer Vision and Pattern Recognition · Computer Science 2019-04-23 Boyi Li , Wenqi Ren , Dengpan Fu , Dacheng Tao , Dan Feng , Wenjun Zeng , Zhangyang Wang

The ability to accurately evaluate the performance of location determination systems is crucial for many applications. Typically, the performance of such systems is obtained by comparing ground truth locations with estimated locations.…

Signal Processing · Electrical Eng. & Systems 2021-06-28 Chen Gu , Ahmed Shokry , Moustafa Youssef

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

3D generation and reconstruction techniques have been widely used in computer games, film, and other content creation areas. As the application grows, there is a growing demand for 3D shapes that look truly realistic. Traditional evaluation…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Sheng Liu , Tianyu Luan , Phani Nuney , Xuelu Feng , Junsong Yuan

Recent work has shown impressive localization performance using only images of ground textures taken with a downward facing monocular camera. This provides a reliable navigation method that is robust to feature sparse environments and…

Robotics · Computer Science 2023-03-13 Kyle M. Hart , Brendan Englot , Ryan P. O'Shea , John D. Kelly , David Martinez

Deep learning methods have become the state of the art for undersampled MR reconstruction. Particularly for cases where it is infeasible or impossible for ground truth, fully sampled data to be acquired, self-supervised machine learning…

Incrementally recovering real-sized 3D geometry from a pose-free RGB stream is a challenging task in 3D reconstruction, requiring minimal assumptions on input data. Existing methods can be broadly categorized into end-to-end and visual…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Linqing Zhao , Xiuwei Xu , Yirui Wang , Hao Wang , Wenzhao Zheng , Yansong Tang , Haibin Yan , Jiwen Lu

The choice of representation for geographic location significantly impacts the accuracy of models for a broad range of geospatial tasks, including fine-grained species classification, population density estimation, and biome classification.…

Computer Vision and Pattern Recognition · Computer Science 2025-04-07 Aayush Dhakal , Srikumar Sastry , Subash Khanal , Adeel Ahmad , Eric Xing , Nathan Jacobs

For more than a decade, researchers have measured progress in object recognition on ImageNet-based generalization benchmarks such as ImageNet-A, -C, and -R. Recent advances in foundation models, trained on orders of magnitude more data,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-26 Megan Richards , Polina Kirichenko , Diane Bouchacourt , Mark Ibrahim

Most computer vision application rely on algorithms finding local correspondences between different images. These algorithms detect and compare stable local invariant descriptors centered at scale-invariant keypoints. Because of the…

Computer Vision and Pattern Recognition · Computer Science 2014-09-10 Ives Rey-Otero , Mauricio Delbracio , Jean-Michel Morel

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

Simultaneous Localisation and Mapping (SLAM) is one of the fundamental problems in autonomous mobile robots where a robot needs to reconstruct a previously unseen environment while simultaneously localising itself with respect to the map.…

Robotics · Computer Science 2022-09-13 Tin Lai

Determining the position and orientation of a sensor vis-a-vis its surrounding, while simultaneously mapping the environment around that sensor or simultaneous localization and mapping is quickly becoming an important advancement in…

Computer Vision and Pattern Recognition · Computer Science 2020-09-14 Joonas Lomps , Artjom Lind , Amnir Hadachi

Modern computer vision has moved beyond the domain of internet photo collections and into the physical world, guiding camera-equipped robots and autonomous cars through unstructured environments. To enable these embodied agents to interact…

Computer Vision and Pattern Recognition · Computer Science 2022-08-30 Igor Vasiljevic

In recent decades, visual simultaneous localization and mapping (vSLAM) has gained significant interest in both academia and industry. It estimates camera motion and reconstructs the environment concurrently using visual sensors on a moving…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Kunping Huang , Sen Zhang , Jing Zhang , Dacheng Tao

Approaches to goal recognition have progressively relaxed the requirements about the amount of domain knowledge and available observations, yielding accurate and efficient algorithms capable of recognizing goals. However, to recognize goals…

Artificial Intelligence · Computer Science 2018-08-22 Leonardo Amado , João Paulo Aires , Ramon Fraga Pereira , Maurício C. Magnaguagno , Roger Granada , Felipe Meneguzzi

Feature matching is crucial in visual localization, where 2D-3D correspondence plays a major role in determining the accuracy of camera pose. A sufficient number of well-distributed 2D-3D correspondences is essential for accurate pose…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Hailin Yu , Youji Feng , Weicai Ye , Mingxuan Jiang , Hujun Bao , Guofeng Zhang

Recovering structure and motion parameters given a image pair or a sequence of images is a well studied problem in computer vision. This is often achieved by employing Structure from Motion (SfM) or Simultaneous Localization and Mapping…

Computer Vision and Pattern Recognition · Computer Science 2018-11-07 Thanuja Dharmasiri , Andrew Spek , Tom Drummond