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Localization is a fundamental task in robotics for autonomous navigation. Existing localization methods rely on a single input data modality or train several computational models to process different modalities. This leads to stringent…

Robotics · Computer Science 2023-07-04 Muhammad Ibrahim , Naveed Akhtar , Saeed Anwar , Ajmal Mian

Thermal cameras offer strong potential for robot perception under challenging illumination and weather conditions. However, thermal Simultaneous Localization and Mapping (SLAM) remains difficult due to unreliable feature extraction,…

Robotics · Computer Science 2026-02-25 Zeyu Jiang , Kuan Xu , Changhao Chen

Localization is a critical technology for various applications ranging from navigation and surveillance to assisted living. Localization systems typically fuse information from sensors viewing the scene from different perspectives to…

Computer Vision and Pattern Recognition · Computer Science 2024-06-12 Jason Wu , Ziqi Wang , Xiaomin Ouyang , Ho Lyun Jeong , Colin Samplawski , Lance Kaplan , Benjamin Marlin , Mani Srivastava

Scene coordinate regression achieves impressive results in outdoor LiDAR localization but requires days of training. Since training needs to be repeated for each new scene, long training times make these methods impractical for…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Wen Li , Chen Liu , Shangshu Yu , Dunqiang Liu , Yin Zhou , Siqi Shen , Chenglu Wen , Cheng Wang

Object detection in thermal images is an important computer vision task and has many applications such as unmanned vehicles, robotics, surveillance and night vision. Deep learning based detectors have achieved major progress, which usually…

Computer Vision and Pattern Recognition · Computer Science 2021-11-02 Peng Liu , Fuyu Li , Wanyi Li

Visual localization, i.e., the problem of camera pose estimation, is a central component of applications such as autonomous robots and augmented reality systems. A dominant approach in the literature, shown to scale to large scenes and to…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Vojtech Panek , Zuzana Kukelova , Torsten Sattler

We present GSplatLoc, a camera localization method that leverages the differentiable rendering capabilities of 3D Gaussian splatting for ultra-precise pose estimation. By formulating pose estimation as a gradient-based optimization problem…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Atticus J. Zeller , Haijuan Wu

Visual geolocalization is a cost-effective and scalable task that involves matching one or more query images, taken at some unknown location, to a set of geo-tagged reference images. Existing methods, devoted to semantic features…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Boni Hu , Lin Chen , Runjian Chen , Shuhui Bu , Pengcheng Han , Haowei Li

Recent learning-based approaches have achieved impressive results in the field of single-shot camera localization. However, how best to fuse multiple modalities (e.g., image and depth) and to deal with degraded or missing input are less…

Computer Vision and Pattern Recognition · Computer Science 2025-01-22 Kaichen Zhou , Changhao Chen , Bing Wang , Muhamad Risqi U. Saputra , Niki Trigoni , Andrew Markham

In this paper, we present a novel end-to-end learning-based LiDAR relocalization framework, termed PointLoc, which infers 6-DoF poses directly using only a single point cloud as input, without requiring a pre-built map. Compared to RGB…

Robotics · Computer Science 2021-11-23 Wei Wang , Bing Wang , Peijun Zhao , Changhao Chen , Ronald Clark , Bo Yang , Andrew Markham , Niki Trigoni

Visual relocalization aims to estimate the pose of a camera from one or more images. In recent years deep learning based pose regression methods have attracted many attentions. They feature predicting the absolute poses without relying on…

Computer Vision and Pattern Recognition · Computer Science 2022-05-27 Chengyu Qiao , Zhiyu Xiang , Xinglu Wang

This paper presents a novel camera relocalization method, STDLoc, which leverages Feature Gaussian as scene representation. STDLoc is a full relocalization pipeline that can achieve accurate relocalization without relying on any pose prior.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Zhiwei Huang , Hailin Yu , Yichun Shentu , Jin Yuan , Guofeng Zhang

Transforming a thermal infrared image into a robust perceptual colour Visible image is an ill-posed problem due to the differences in their spectral domains and in the objects' representations. Objects appear in one spectrum but not…

Computer Vision and Pattern Recognition · Computer Science 2020-03-05 Feras Almasri , Olivier Debeir

Existing visual localization methods are typically either 2D image-based, which are easy to build and maintain but limited in effective geometric reasoning, or 3D structure-based, which achieve high accuracy but require a centralized…

Computer Vision and Pattern Recognition · Computer Science 2026-01-08 Xudong Jiang , Fangjinhua Wang , Silvano Galliani , Christoph Vogel , Marc Pollefeys

We introduce Deep Thermal Imaging, a new approach for close-range automatic recognition of materials to enhance the understanding of people and ubiquitous technologies of their proximal environment. Our approach uses a low-cost mobile…

Computer Vision and Pattern Recognition · Computer Science 2018-03-28 Youngjun Cho , Nadia Bianchi-Berthouze , Nicolai Marquardt , Simon J. Julier

Despite the advancements in deep learning for camera relocalization tasks, obtaining ground truth pose labels required for the training process remains a costly endeavor. While current weakly supervised methods excel in lightweight label…

Computer Vision and Pattern Recognition · Computer Science 2024-03-25 Jialu Wang , Kaichen Zhou , Andrew Markham , Niki Trigoni

Recently, self-supervised learning of depth and ego-motion from thermal images shows strong robustness and reliability under challenging scenarios. However, the inherent thermal image properties such as weak contrast, blurry edges, and…

Robotics · Computer Science 2022-06-16 Ukcheol Shin , Kyunghyun Lee , Byeong-Uk Lee , In So Kweon

Thermal Images profile the passive radiation of objects and capture them in grayscale images. Such images have a very different distribution of data compared to optical colored images. We present here a work that produces a grayscale…

Computer Vision and Pattern Recognition · Computer Science 2023-04-06 Suranjan Goswami , Satish Kumar Singh , and Bidyut B. Chaudhuri

Astronaut photography, spanning six decades of human spaceflight, presents a unique Earth observations dataset with immense value for both scientific research and disaster response. Despite its significance, accurately localizing the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-12 Gabriele Berton , Alex Stoken , Barbara Caputo , Carlo Masone

In this paper, we present SPVLoc, a global indoor localization method that accurately determines the six-dimensional (6D) camera pose of a query image and requires minimal scene-specific prior knowledge and no scene-specific training. Our…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Niklas Gard , Anna Hilsmann , Peter Eisert