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Image geolocalization is the challenging task of predicting the geographic coordinates of origin for a given photo. It is an unsolved problem relying on the ability to combine visual clues with general knowledge about the world to make…

Computer Vision and Pattern Recognition · Computer Science 2023-02-02 Lukas Haas , Silas Alberti , Michal Skreta

Text contained in an image carries high-level semantics that can be exploited to achieve richer image understanding. In particular, the mere presence of text provides strong guiding content that should be employed to tackle a diversity of…

Computer Vision and Pattern Recognition · Computer Science 2020-01-15 Andres Mafla , Sounak Dey , Ali Furkan Biten , Lluis Gomez , Dimosthenis Karatzas

Large language models have seen widespread adoption in math problem-solving. However, in geometry problems that usually require visual aids for better understanding, even the most advanced multi-modal models currently still face challenges…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Shihao Cai , Keqin Bao , Hangyu Guo , Jizhi Zhang , Jun Song , Bo Zheng

Worldwide visual geo-localization aims to determine the geographic location of an image anywhere on Earth using only its visual content. Despite recent progress, learning expressive representations of geographic space remains challenging…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Angel Daruna , Nicholas Meegan , Han-Pang Chiu , Supun Samarasekera , Rakesh Kumar

We introduce ``Idea to Image,'' a system that enables multimodal iterative self-refinement with GPT-4V(ision) for automatic image design and generation. Humans can quickly identify the characteristics of different text-to-image (T2I) models…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Zhengyuan Yang , Jianfeng Wang , Linjie Li , Kevin Lin , Chung-Ching Lin , Zicheng Liu , Lijuan Wang

Multimodal image-to-image translation (I2IT) aims to learn a conditional distribution that explores multiple possible images in the target domain given an input image in the source domain. Conditional generative adversarial networks (cGANs)…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 Zhiwen Zuo , Lei Zhao , Zhizhong Wang , Haibo Chen , Ailin Li , Qijiang Xu , Wei Xing , Dongming Lu

Geo-localization is a critical task in computer vision. In this work, we cast the geo-localization as a 2D image retrieval task. Current state-of-the-art methods for 2D geo-localization are not robust to locate a scene with drastic scale…

Computer Vision and Pattern Recognition · Computer Science 2021-02-19 Liqi Yan , Yiming Cui , Yingjie Chen , Dongfang Liu

Multimodal large language models (MLLMs) have made significant advancements in vision understanding and reasoning. However, the autoregressive Transformer architecture used by MLLMs requries tokenization on input images, which limits their…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Xiangxuan Ren , Zhongdao Wang , Liping Hou , Pin Tang , Guoqing Wang , Chao Ma

In this paper we propose a novel method for image matching based on dense local features and tailored for visual geolocalization. Dense local features matching is robust against changes in illumination and occlusions, but not against…

Computer Vision and Pattern Recognition · Computer Science 2021-09-22 Gabriele Berton , Carlo Masone , Valerio Paolicelli , Barbara Caputo

Image retrieval is a fundamental problem in computer vision. This paper presents our 3rd place detailed solution to the Google Landmark Retrieval 2020 challenge. We focus on the exploration of data cleaning and models with metric learning.…

Computer Vision and Pattern Recognition · Computer Science 2020-08-26 Ke Mei , Lei li , Jinchang Xu , Yanhua Cheng , Yugeng Lin

Image restoration is the task of recovering a clean image from a degraded version. In most cases, the degradation is spatially varying, and it requires the restoration network to both localize and restore the affected regions. In this…

Image and Video Processing · Electrical Eng. & Systems 2022-01-04 Maitreya Suin , Kuldeep Purohit , A. N. Rajagopalan

This paper studies image-based geo-localization (IBL) problem using ground-to-aerial cross-view matching. The goal is to predict the spatial location of a ground-level query image by matching it to a large geotagged aerial image database…

Computer Vision and Pattern Recognition · Computer Science 2019-04-01 Liu Liu , Hongdong Li

We demonstrate how language can improve geolocation: the task of predicting the location where an image was taken. Here we study explicit knowledge from human-written guidebooks that describe the salient and class-discriminative visual…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Grace Luo , Giscard Biamby , Trevor Darrell , Daniel Fried , Anna Rohrbach

We introduce a novel problem, i.e., the localization of an input image within a multi-modal reference map represented by a database of 3D scene graphs. These graphs comprise multiple modalities, including object-level point clouds, images,…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Yang Miao , Francis Engelmann , Olga Vysotska , Federico Tombari , Marc Pollefeys , Dániel Béla Baráth

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

Image geolocalization, in which an AI model traditionally predicts the precise GPS coordinates of an image, is a challenging task with many downstream applications. However, the user cannot utilize the model to further their knowledge…

Computer Vision and Pattern Recognition · Computer Science 2025-09-04 Ron Campos , Ashmal Vayani , Parth Parag Kulkarni , Rohit Gupta , Aizan Zafar , Aritra Dutta , Mubarak Shah

We present LM-Reloc -- a novel approach for visual relocalization based on direct image alignment. In contrast to prior works that tackle the problem with a feature-based formulation, the proposed method does not rely on feature matching…

Computer Vision and Pattern Recognition · Computer Science 2020-10-14 Lukas von Stumberg , Patrick Wenzel , Nan Yang , Daniel Cremers

For high-level geo-spatial applications and intelligent robotics, accurate global pose information is of crucial importance. Map-aided localization is a universal approach to overcome the limitations of global navigation satellite system…

Robotics · Computer Science 2025-11-19 Yuxuan Zhou , Xingxing Li , Shengyu Li , Chunxi Xia , Xuanbin Wang , Shaoquan Feng

Re-localizing a camera from a single image in a previously mapped area is vital for many computer vision applications in robotics and augmented/virtual reality. In this work, we address the problem of estimating the 6 DoF camera pose…

Computer Vision and Pattern Recognition · Computer Science 2023-12-19 Mohammad Altillawi , Zador Pataki , Shile Li , Ziyuan Liu

The ability to construct mental models of the world is a central aspect of understanding. Similarly, visual understanding can be viewed as the ability to construct a representative model of the system depicted in an image. This work…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Sagi Eppel