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This paper presents a novel approach for image retrieval and pattern spotting in document image collections. The manual feature engineering is avoided by learning a similarity-based representation using a Siamese Neural Network trained on a…

Computer Vision and Pattern Recognition · Computer Science 2019-06-25 Kelly L. Wiggers , Alceu S. Britto , Laurent Heutte , Alessandro L. Koerich , Luiz S. Oliveira

Many User interactive systems are proposed all methods are trying to implement as a user friendly and various approaches proposed but most of the systems not reached to the use specifications like user friendly systems with user interest,…

Computer Vision and Pattern Recognition · Computer Science 2012-04-12 R. Venkata Ramana Chary , D. Rajya Lakshmi , K. V. N. Sunitha

Location retrieval based on visual information is to retrieve the location of an agent (e.g. human, robot) or the area they see by comparing the observations with a certain form of representation of the environment. Existing methods…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Lijun Wei , Valerie Gouet-Brunet , Anthony Cohn

Advances in embedding models for text, image, audio, and video drive progress across multiple domains, including retrieval-augmented generation, recommendation systems, and others. Many of these applications require an efficient method to…

Databases · Computer Science 2026-04-02 Patrick Iff , Paul Bruegger , Marcin Chrapek , David Kochergin , Maciej Besta , Torsten Hoefler

Geometric verification is considered a de facto solution for the re-ranking task in image retrieval. In this study, we propose a novel image retrieval re-ranking network named Correlation Verification Networks (CVNet). Our proposed network,…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Seongwon Lee , Hongje Seong , Suhyeon Lee , Euntai Kim

Nearest-neighbour retrieval is central to classification and explainable-AI pipelines, but current practice relies on hand-tuning feature layers and distance metrics. We propose Targeted Manifold Manipulation-Nearest Neighbour (TMM-NN),…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 B. Ghosh , H. Harikumar , S. Rana

To effectively retrieve objects from large corpus with high accuracy is a challenge task. In this paper, we propose a method that propagates visual feature level similarities on a Markov random field (MRF) to obtain a high level…

Computer Vision and Pattern Recognition · Computer Science 2013-12-30 Peng Lu , Xujun Peng , Xinshan Zhu , Xiaojie Wang

We propose a novel image retrieval framework for visual saliency detection using information about salient objects contained within bounding box annotations for similar images. For each test image, we train a customized SVM from similar…

Computer Vision and Pattern Recognition · Computer Science 2017-09-26 Shuang Li , Peter Mathews

The objective of Content-Based Image Retrieval (CBIR) methods is essentially to extract, from large (image) databases, a specified number of images similar in visual and semantic content to a so-called query image. To bridge the semantic…

Information Retrieval · Computer Science 2015-02-12 Smarajit Bose , Amita Pal , Jhimli Mallick , Sunil Kumar , Pratyaydipta Rudra

The k-Nearest Neighbors (kNN) classifier is a fundamental non-parametric machine learning algorithm. However, it is well known that it suffers from the curse of dimensionality, which is why in practice one often applies a kNN classifier on…

Machine Learning · Computer Science 2020-10-16 Luka Rimanic , Cedric Renggli , Bo Li , Ce Zhang

We present a new wrapper feature selection algorithm for human detection. This algorithm is a hybrid feature selection approach combining the benefits of filter and wrapper methods. It allows the selection of an optimal feature vector that…

Computer Vision and Pattern Recognition · Computer Science 2025-03-24 Jeonghwan Park , Kang Li , Huiyu Zhou

Our objective is video retrieval based on natural language queries. In addition, we consider the analogous problem of retrieving sentences or generating descriptions given an input video. Recent work has addressed the problem by embedding…

Computer Vision and Pattern Recognition · Computer Science 2016-08-09 Mayu Otani , Yuta Nakashima , Esa Rahtu , Janne Heikkilä , Naokazu Yokoya

Image to image translation aims to learn a mapping that transforms an image from one visual domain to another. Recent works assume that images descriptors can be disentangled into a domain-invariant content representation and a…

Computer Vision and Pattern Recognition · Computer Science 2020-08-13 Raul Gomez , Yahui Liu , Marco De Nadai , Dimosthenis Karatzas , Bruno Lepri , Nicu Sebe

Text embedding representing natural language documents in a semantic vector space can be used for document retrieval using nearest neighbor lookup. In order to study the feasibility of neural models specialized for retrieval in a…

Information Retrieval · Computer Science 2019-05-03 Tolgahan Cakaloglu , Christian Szegedy , Xiaowei Xu

Convolutional Neural Network (CNN) is a very powerful approach to extract discriminative local descriptors for effective image search. Recent work adopts fine-tuned strategies to further improve the discriminative power of the descriptors.…

Computer Vision and Pattern Recognition · Computer Science 2017-11-28 Tuan Hoang , Thanh-Toan Do , Dang-Khoa Le Tan , Ngai-Man Cheung

Aggregating different image features for image retrieval has recently shown its effectiveness. While highly effective, though, the question of how to uplift the impact of the best features for a specific query image persists as an open…

Computer Vision and Pattern Recognition · Computer Science 2018-08-16 Leulseged Tesfaye Alemu , Marcello Pelillo

Vision-language models (VLMs) have enabled strong zero-shot classification through image-text alignment. Yet, their purely visual inference capabilities remain under-explored. In this work, we conduct a comprehensive evaluation of both…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Illia Volkov , Nikita Kisel , Klara Janouskova , Jiri Matas

The current models of image representation based on Convolutional Neural Networks (CNN) have shown tremendous performance in image retrieval. Such models are inspired by the information flow along the visual pathway in the human visual…

Computer Vision and Pattern Recognition · Computer Science 2017-03-06 Zakaria Laskar , Juho Kannala

Dense retrieval, which describes the use of contextualised language models such as BERT to identify documents from a collection by leveraging approximate nearest neighbour (ANN) techniques, has been increasing in popularity. Two families of…

Information Retrieval · Computer Science 2021-08-27 Craig Macdonald , Nicola Tonellotto

Content-Based Image Retrieval (CBIR) locates, retrieves and displays images alike to one given as a query, using a set of features. It demands accessible data in medical archives and from medical equipment, to infer meaning after some…

Computer Vision and Pattern Recognition · Computer Science 2016-10-11 Albany E. Herrmann , Vania Vieira Estrela