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Visual Place Recognition (VPR) is a crucial component of 6-DoF localization, visual SLAM and structure-from-motion pipelines, tasked to generate an initial list of place match hypotheses by matching global place descriptors. However,…

Computer Vision and Pattern Recognition · Computer Science 2022-02-21 Ahmad Khaliq , Michael Milford , Sourav Garg

In this paper we address the task of visual place recognition (VPR), where the goal is to retrieve the correct GPS coordinates of a given query image against a huge geotagged gallery. While recent works have shown that building descriptors…

Computer Vision and Pattern Recognition · Computer Science 2022-01-26 Valerio Paolicelli , Antonio Tavera , Carlo Masone , Gabriele Berton , Barbara Caputo

Visual Grounding aims to localize the referring object in an image given a natural language expression. Recent advancements in DETR-based visual grounding methods have attracted considerable attention, as they directly predict the…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Yabing Wang , Zhuotao Tian , Qingpei Guo , Zheng Qin , Sanping Zhou , Ming Yang , Le Wang

Dimensionality reduction is a main step in the learning process which plays an essential role in many applications. The most popular methods in this field like SVD, PCA, and LDA, only can be applied to data with vector format. This means…

Machine Learning · Computer Science 2019-03-01 Soheil Ahmadi , Mansoor Rezghi

Most complex machine learning and modelling techniques are prone to over-fitting and may subsequently generalise poorly to future data. Artificial neural networks are no different in this regard and, despite having a level of implicit…

Machine Learning · Statistics 2022-05-26 Vincent Szolnoky , Viktor Andersson , Balazs Kulcsar , Rebecka Jörnsten

Most popular deep models for action recognition split video sequences into short sub-sequences consisting of a few frames; frame-based features are then pooled for recognizing the activity. Usually, this pooling step discards the temporal…

Computer Vision and Pattern Recognition · Computer Science 2017-07-25 Anoop Cherian , Basura Fernando , Mehrtash Harandi , Stephen Gould

Using only image-sentence pairs, weakly-supervised visual-textual grounding aims to learn region-phrase correspondences of the respective entity mentions. Compared to the supervised approach, learning is more difficult since bounding boxes…

Computer Vision and Pattern Recognition · Computer Science 2023-09-27 Davide Rigoni , Luca Parolari , Luciano Serafini , Alessandro Sperduti , Lamberto Ballan

We introduce the first Neural Architecture Search (NAS) method to find a better transformer architecture for image recognition. Recently, transformers without CNN-based backbones are found to achieve impressive performance for image…

Computer Vision and Pattern Recognition · Computer Science 2021-08-18 Boyu Chen , Peixia Li , Chuming Li , Baopu Li , Lei Bai , Chen Lin , Ming Sun , Junjie yan , Wanli Ouyang

Dimensionality reduction (DR) of image features plays an important role in image retrieval and classification tasks. Recently, two types of methods have been proposed to improve the both the accuracy and efficiency for the dimensionality…

Computer Vision and Pattern Recognition · Computer Science 2013-04-10 Yao Nan , Qian Feng , Sun Zuolei

Image degradation is a prevalent issue in various real-world applications, affecting visual quality and downstream processing tasks. In this study, we propose a novel framework that employs a Vision-Language Model (VLM) to automatically…

Computer Vision and Pattern Recognition · Computer Science 2025-06-09 Jie Cai , Kangning Yang , Jiaming Ding , Lan Fu , Ling Ouyang , Jiang Li , Jinglin Shen , Zibo Meng

Visual Place Recognition (VPR) is a core component in computer vision, typically formulated as an image retrieval task for localization, mapping, and navigation. In this work, we instead study VPR as an image pair retrieval front-end for…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Dennis Haitz , Athradi Shritish Shetty , Michael Weinmann , Markus Ulrich

End-to-end trained Recurrent Neural Networks (RNNs) have been successfully applied to numerous problems that require processing sequences, such as image captioning, machine translation, and text recognition. However, RNNs often struggle to…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Ankush Gupta , Andrea Vedaldi , Andrew Zisserman

Deep neural networks have reached human-level performance on many computer vision tasks. However, the objectives used to train these networks enforce only that similar images are embedded at similar locations in the representation space,…

Computer Vision and Pattern Recognition · Computer Science 2023-09-27 Lukas Muttenthaler , Lorenz Linhardt , Jonas Dippel , Robert A. Vandermeulen , Katherine Hermann , Andrew K. Lampinen , Simon Kornblith

The data consistency for the physical forward model is crucial in inverse problems, especially in MR imaging reconstruction. The standard way is to unroll an iterative algorithm into a neural network with a forward model embedded. The…

Image and Video Processing · Electrical Eng. & Systems 2023-06-28 Guanxiong Luo , Mengmeng Kuang , Peng Cao

Traditional sparse and dense retrieval methods struggle to leverage general world knowledge and often fail to capture the nuanced features of queries and products. With the advent of large language models (LLMs), industrial search systems…

Information Retrieval · Computer Science 2025-07-14 Ming Pang , Chunyuan Yuan , Xiaoyu He , Zheng Fang , Donghao Xie , Fanyi Qu , Xue Jiang , Changping Peng , Zhangang Lin , Ching Law , Jingping Shao

Visual place classification from a first-person-view monocular RGB image is a fundamental problem in long-term robot navigation. A difficulty arises from the fact that RGB image classifiers are often vulnerable to spatial and appearance…

Computer Vision and Pattern Recognition · Computer Science 2023-05-12 Tomoya Iwasaki , Kanji Tanaka , Kenta Tsukahara

The huge variance of human pose and the misalignment of detected human images significantly increase the difficulty of person Re-Identification (Re-ID). Moreover, efficient Re-ID systems are required to cope with the massive visual data…

Computer Vision and Pattern Recognition · Computer Science 2017-09-14 Longhui Wei , Shiliang Zhang , Hantao Yao , Wen Gao , Qi Tian

Visual Place Recognition (VPR) estimates the location of query images by matching them with images in a reference database. Conventional methods generally adopt aggregated CNN features for global retrieval and RANSAC-based geometric…

Computer Vision and Pattern Recognition · Computer Science 2023-04-10 Sijie Zhu , Linjie Yang , Chen Chen , Mubarak Shah , Xiaohui Shen , Heng Wang

Reward models are critical for reinforcement learning from human feedback, as they determine the alignment quality and reliability of generative models. For complex tasks such as image editing, reward models are required to capture global…

Visual manipulation localization (VML) aims to identify tampered regions in images and videos, a task that has become increasingly challenging with the rise of advanced editing tools. Existing methods face two main issues: resolution…

Computer Vision and Pattern Recognition · Computer Science 2025-10-06 Wen Huang , Jiarui Yang , Tao Dai , Jiawei Li , Shaoxiong Zhan , Bin Wang , Shu-Tao Xia