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Large visual language models (LVLMs) have demonstrated impressive performance in coarse-grained geo-localization at the country or city level, but they struggle with fine-grained street-level localization within urban areas. In this paper,…

Computer Vision and Pattern Recognition · Computer Science 2025-08-15 Shixiong Xu , Chenghao Zhang , Lubin Fan , Yuan Zhou , Bin Fan , Shiming Xiang , Gaofeng Meng , Jieping Ye

The advent of Vision Language Models (VLM) has allowed researchers to investigate the visual understanding of a neural network using natural language. Beyond object classification and detection, VLMs are capable of visual comprehension and…

Computer Vision and Pattern Recognition · Computer Science 2024-08-12 Haz Sameen Shahgir , Khondker Salman Sayeed , Abhik Bhattacharjee , Wasi Uddin Ahmad , Yue Dong , Rifat Shahriyar

Video temporal grounding (VTG) is a critical task in video understanding and a key capability for extending video large language models (Vid-LLMs) to broader applications. However, existing Vid-LLMs rely on uniform frame sampling to extract…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Rong Fan , Kaiyan Xiao , Minghao Zhu , Liuyi Wang , Kai Dai , Zhao Yang

Continual learning of pretrained vision-language models (VLMs) is prone to catastrophic forgetting, yet current approaches adapt to new tasks without explicitly preserving the cross-modal semantic geometry inherited from pretraining and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Chiyuan He , Zihuan Qiu , Fanman Meng , Runtong Zhang , Linfeng Xu , Qingbo Wu , Hongliang Li

Recent advancements in multimodal techniques open exciting possibilities for models excelling in diverse tasks involving text, audio, and image processing. Models like GPT-4V, blending computer vision and language modeling, excel in complex…

Computation and Language · Computer Science 2023-10-20 Xiang Zhang , Senyu Li , Zijun Wu , Ning Shi

This paper proposes a novel method for vision-based metric cross-view geolocalization (CVGL) that matches the camera images captured from a ground-based vehicle with an aerial image to determine the vehicle's geo-pose. Since aerial images…

Computer Vision and Pattern Recognition · Computer Science 2023-05-18 Florian Fervers , Sebastian Bullinger , Christoph Bodensteiner , Michael Arens , Rainer Stiefelhagen

In this work, we evaluate two different image clustering objectives, k-means clustering and correlation clustering, in the context of Triplet Loss induced feature space embeddings. Specifically, we train a convolutional neural network to…

Computer Vision and Pattern Recognition · Computer Science 2020-07-08 Kalun Ho , Janis Keuper , Franz-Josef Pfreundt , Margret Keuper

Recent contrastive learning methods have shown to be effective in various tasks, learning generalizable representations invariant to data augmentation thereby leading to state of the art performances. Regarding the multifaceted nature of…

Machine Learning · Computer Science 2022-05-27 MinGyu Choi , Wonseok Shin , Yijingxiu Lu , Sun Kim

Geometry problem-solving remains a significant challenge for Large Multimodal Models (LMMs), requiring not only global shape recognition but also attention to intricate local relationships related to geometric theory. To address this, we…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Linger Deng , Yuliang Liu , Wenwen Yu , Zujia Zhang , Jianzhong Ju , Zhenbo Luo , Xiang Bai

Cross-view geo-localisation identifies coarse geographical position of an automated vehicle by matching a ground-level image to a geo-tagged satellite image from a database. Despite the advancements in Cross-view geo-localisation,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-21 Barkin Dagda , Muhammad Awais , Saber Fallah

We address the problem of distance metric learning (DML), defined as learning a distance consistent with a notion of semantic similarity. Traditionally, for this problem supervision is expressed in the form of sets of points that follow an…

Computer Vision and Pattern Recognition · Computer Science 2017-08-03 Yair Movshovitz-Attias , Alexander Toshev , Thomas K. Leung , Sergey Ioffe , Saurabh Singh

We approach the problem of hotel recognition with deep metric learning. We overview the existing approaches and propose a modification to Contrastive loss called Contrastive-Triplet loss. We construct a robust pipeline for benchmarking…

Computer Vision and Pattern Recognition · Computer Science 2021-06-16 Boris Tseytlin , Ilya Makarov

In recent years, we have witnessed a surge of interests in learning a suitable distance metric from weakly supervised data. Most existing methods aim to pull all the similar samples closer while push the dissimilar ones as far as possible.…

Machine Learning · Computer Science 2021-02-05 Huiyuan Deng , Xiangzhu Meng , Lin Feng

Geo-localization aims to infer the geographic location where an image was captured using observable visual evidence. Traditional methods achieve impressive results through large-scale training on massive image corpora. With the emergence of…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Jinnao Li , Zijian Chen , Tingzhu Chen , Changbo Wang

Existing image-text matching approaches typically leverage triplet loss with online hard negatives to train the model. For each image or text anchor in a training mini-batch, the model is trained to distinguish between a positive and the…

Computer Vision and Pattern Recognition · Computer Science 2020-07-23 Tianlang Chen , Jiajun Deng , Jiebo Luo

Cross-view geo-localization (CVGL) aims to establish spatial correspondences between images captured from significantly different viewpoints and constitutes a fundamental technique for visual localization in GNSS-denied environments.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-04 Hongying Zhang , ShuaiShuai Ma

Image geolocalization, inferring the geographic location of an image, is a challenging computer vision problem with many potential applications. The recent state-of-the-art approach to this problem is a deep image classification approach in…

Computer Vision and Pattern Recognition · Computer Science 2017-05-16 Nam Vo , Nathan Jacobs , James Hays

Self-supervised learning (SSL) has made enormous progress and largely narrowed the gap with the supervised ones, where the representation learning is mainly guided by a projection into an embedding space. During the projection, current…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Lang Huang , Shan You , Mingkai Zheng , Fei Wang , Chen Qian , Toshihiko Yamasaki

Deep distance metric learning (DDML), which is proposed to learn image similarity metrics in an end-to-end manner based on the convolution neural network, has achieved encouraging results in many computer vision tasks.$L2$-normalization in…

Computer Vision and Pattern Recognition · Computer Science 2018-03-29 Xuefei Zhe , Shifeng Chen , Hong Yan

Geo-localization is the task of identifying the location of an image using visual cues alone. It has beneficial applications, such as improving disaster response, enhancing navigation, and geography education. Recently, Vision-Language…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Oliver Grainge , Sania Waheed , Jack Stilgoe , Michael Milford , Shoaib Ehsan