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We propose a novel learning-based formulation for visual localization of vehicles that can operate in real-time in city-scale environments. Visual localization algorithms determine the position and orientation from which an image has been…

Computer Vision and Pattern Recognition · Computer Science 2022-10-31 Arthur Moreau , Thomas Gilles , Nathan Piasco , Dzmitry Tsishkou , Bogdan Stanciulescu , Arnaud de La Fortelle

Vision-Language Models (VLMs) process thousands of visual tokens per image alongside comparatively few text tokens, yet existing compression methods treat both modalities uniformly. We observe that the two modalities have fundamentally…

Machine Learning · Computer Science 2026-05-29 Yilin Feng , Ahmed Burak Gulhan , Mahmut Taylan Kandemir

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

Effective instruction fine-tuning on diverse image-text datasets is crucial for developing a versatile Multimodal Large Language Model (MLLM), where dataset composition dictates the model's adaptability across multimodal tasks. However,…

Computer Vision and Pattern Recognition · Computer Science 2025-02-28 Xuyang Wei , Chunlin Tian , Li Li

We present a visual localization system that learns to estimate camera poses in the real world with the help of synthetic data. Despite significant progress in recent years, most learning-based approaches to visual localization target at a…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Qi Yan , Jianhao Zheng , Simon Reding , Shanci Li , Iordan Doytchinov

Advanced change detection techniques primarily target image pairs of equal and high quality. However, variations in imaging conditions and platforms frequently lead to image pairs with distinct qualities: one image being high-quality, while…

Computer Vision and Pattern Recognition · Computer Science 2024-01-22 Chao Pang , Xingxing Weng , Jiang Wu , Qiang Wang , Gui-Song Xia

Large vision-language models have achieved outstanding performance, but their size and computational requirements make their deployment on resource-constrained devices and time-sensitive tasks impractical. Model distillation, the process of…

Computer Vision and Pattern Recognition · Computer Science 2023-10-13 Xuanlin Li , Yunhao Fang , Minghua Liu , Zhan Ling , Zhuowen Tu , Hao Su

We develop a new unsupervised symmetry learning method that starts with raw data and provides the minimal generator of an underlying Lie group of symmetries, together with a symmetry-equivariant representation of the data, which turns the…

Machine Learning · Computer Science 2025-07-08 Onur Efe , Arkadas Ozakin

Deploying machine learning models in resource-constrained environments, such as edge devices or rapid prototyping scenarios, increasingly demands distillation of large datasets into significantly smaller yet informative synthetic datasets.…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Wenmin Li , Shunsuke Sakai , Tatsuhito Hasegawa

Self-supervised learning has achieved remarkable success in learning visual representations from clean data, yet remains challenging when clean observations are sparse or not available at all. In this paper, we demonstrate that pretrained…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Konstantinos Alexis , Giorgos Giannopoulos , Dimitrios Gunopulos

Localizing an image wrt. a 3D scene model represents a core task for many computer vision applications. An increasing number of real-world applications of visual localization on mobile devices, e.g., Augmented Reality or autonomous robots…

Computer Vision and Pattern Recognition · Computer Science 2019-04-23 Federico Camposeco , Andrea Cohen , Marc Pollefeys , Torsten Sattler

Camera pose estimation in known scenes is a 3D geometry task recently tackled by multiple learning algorithms. Many regress precise geometric quantities, like poses or 3D points, from an input image. This either fails to generalize to new…

The overarching goals in image-based localization are scale, robustness and speed. In recent years, approaches based on local features and sparse 3D point-cloud models have both dominated the benchmarks and seen successful realworld…

Computer Vision and Pattern Recognition · Computer Science 2019-07-02 Simon Lynen , Bernhard Zeisl , Dror Aiger , Michael Bosse , Joel Hesch , Marc Pollefeys , Roland Siegwart , Torsten Sattler

Visual-based recognition, e.g., image classification, object detection, etc., is a long-standing challenge in computer vision and robotics communities. Concerning the roboticists, since the knowledge of the environment is a prerequisite for…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 Antonios Gasteratos , Konstantinos A. Tsintotas , Tobias Fischer , Yiannis Aloimonos , Michael Milford

Resource-constrained perception systems such as edge computing and vision-for-robotics require vision models to be both accurate and lightweight in computation and memory usage. While knowledge distillation is a proven strategy to enhance…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Shengcao Cao , Mengtian Li , James Hays , Deva Ramanan , Yi-Xiong Wang , Liang-Yan Gui

Online High-Definition (HD) map construction is pivotal for autonomous driving. While recent approaches leverage historical temporal fusion to improve performance, we identify a critical safety flaw in this paradigm: it is inherently…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Ruikai Li , Xinrun Li , Mengwei Xie , Hao Shan , Shoumeng Qiu , Xinyuan Chang , Yizhe Fan , Feng Xiong , Han Jiang , Yilong Ren , Haiyang Yu , Mu Xu , Yang Long , Varun Ojha , Zhiyong Cui

This paper explores the application of knowledge distillation technology in target detection tasks, especially the impact of different distillation temperatures on the performance of student models. By using YOLOv5l as the teacher network…

Computer Vision and Pattern Recognition · Computer Science 2024-10-17 Guanming Huang , Aoran Shen , Yuxiang Hu , Junliang Du , Jiacheng Hu , Yingbin Liang

Object localization is a hot issue in computer vision area, which aims to identify and determine the precise location of specific objects from image or video. Most existing object localization methods heavily rely on extensive labeled data,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-19 Jingjing Wang , Xinglin Piao , Zongzhi Gao , Bo Li , Yong Zhang , Baocai Yin

Visual object localization is the key step in a series of object detection tasks. In the literature, high localization accuracy is achieved with the mainstream strongly supervised frameworks. However, such methods require object-level…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Yi-Geng Hong , Hui-Chu Xiao , Wan-Lei Zhao

Multi-view camera-based 3D object detection has become popular due to its low cost, but accurately inferring 3D geometry solely from camera data remains challenging and may lead to inferior performance. Although distilling precise 3D…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Haimei Zhao , Qiming Zhang , Shanshan Zhao , Zhe Chen , Jing Zhang , Dacheng Tao