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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…

计算机视觉与模式识别 · 计算机科学 2019-06-25 Kelly L. Wiggers , Alceu S. Britto , Laurent Heutte , Alessandro L. Koerich , Luiz S. Oliveira

This paper attempts to discuss the evolution of the retrieval approaches focusing on development, challenges and future direction of the image retrieval. It highlights both the already addressed and outstanding issues. The explosive growth…

信息检索 · 计算机科学 2010-06-24 Hui Hui Wang , Dzulkifli Mohamad , N. A. Ismail

Estimation of the frequency and duration of logos in videos is important and challenging in the advertisement industry as a way of estimating the impact of ad purchases. Since logos occupy only a small area in the videos, the popular…

图像与视频处理 · 电气工程与系统科学 2020-05-20 Bochen Guan , Hanrong Ye , Hong Liu , William A. Sethares

Recognizing and disentangling visual attributes from objects is a foundation to many computer vision applications. While large vision language representations like CLIP had largely resolved the task of zero-shot object recognition,…

计算机视觉与模式识别 · 计算机科学 2024-10-03 William Yicheng Zhu , Keren Ye , Junjie Ke , Jiahui Yu , Leonidas Guibas , Peyman Milanfar , Feng Yang

The classification of legal documents from an unstructured data corpus has several crucial applications in downstream tasks. Documents relevant to court filings are key in use cases such as drafting motions, memos, and outlines, as well as…

计算与语言 · 计算机科学 2026-04-27 Ishaan Gakhar , Harsh Nandwani

With such a massive growth in the number of images stored, efficient search in a database has become a crucial endeavor managed by image retrieval systems. Image Retrieval with Relevance Feedback (IRRF) involves iterative human interaction…

计算机视觉与模式识别 · 计算机科学 2023-12-19 Boaz Lerner , Nir Darshan , Rami Ben-Ari

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…

计算机视觉与模式识别 · 计算机科学 2013-04-10 Yao Nan , Qian Feng , Sun Zuolei

In this paper, we study the task of image retrieval, where the input query is specified in the form of an image plus some text that describes desired modifications to the input image. For example, we may present an image of the Eiffel…

计算机视觉与模式识别 · 计算机科学 2018-12-19 Nam Vo , Lu Jiang , Chen Sun , Kevin Murphy , Li-Jia Li , Li Fei-Fei , James Hays

Instance-level image retrieval is the task of searching in a large database for images that match an object in a query image. To address this task, systems usually rely on a retrieval step that uses global image descriptors, and a…

计算机视觉与模式识别 · 计算机科学 2022-06-07 Fuwen Tan , Jiangbo Yuan , Vicente Ordonez

Precise homography estimation between multiple images is a pre-requisite for many computer vision applications. One application that is particularly relevant in today's digital era is the alignment of scanned or camera-captured document…

计算机视觉与模式识别 · 计算机科学 2019-11-15 Kushagra Mahajan , Monika Sharma , Lovekesh Vig

Image retrieval is the task of finding images in a database that are most similar to a given query image. The performance of an image retrieval pipeline depends on many training-time factors, including the embedding model architecture, loss…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Gabriele Berton , Kevin Musgrave , Carlo Masone

This paper presents a new state-of-the-art for document image classification and retrieval, using features learned by deep convolutional neural networks (CNNs). In object and scene analysis, deep neural nets are capable of learning a…

计算机视觉与模式识别 · 计算机科学 2015-02-26 Adam W. Harley , Alex Ufkes , Konstantinos G. Derpanis

In this paper we present an extensive evaluation of visual descriptors for the content-based retrieval of remote sensing (RS) images. The evaluation includes global hand-crafted, local hand-crafted, and Convolutional Neural Network (CNNs)…

计算机视觉与模式识别 · 计算机科学 2017-08-09 Paolo Napoletano

Driven by the urgent demand for managing remote sensing big data, large-scale remote sensing image retrieval (RSIR) attracts increasing attention in the remote sensing field. In general, existing retrieval methods can be regarded as…

计算机视觉与模式识别 · 计算机科学 2019-09-11 Weiwei Song , Shutao Li , Jon Atli Benediktsson

Deep neural networks have achieved significant improvements in information retrieval (IR). However, most existing models are computational costly and can not efficiently scale to long documents. This paper proposes a novel End-to-End neural…

计算与语言 · 计算机科学 2019-08-13 Chen Zheng , Yu Sun , Shengxian Wan , Dianhai Yu

This paper approaches the image retrieval system on the base of visual features local region RBIR (region-based image retrieval). First of all, the paper presents a method for extracting the interest points based on Harris-Laplace to create…

计算机视觉与模式识别 · 计算机科学 2015-07-20 Thanh The Van , Thanh Manh Le

Document image retrieval (DIR) aims to retrieve document images from a gallery according to a given query. Existing DIR methods are primarily based on image queries that retrieve documents within the same coarse semantic category, e.g.,…

计算机视觉与模式识别 · 计算机科学 2025-12-24 Hao Guo , Xugong Qin , Jun Jie Ou Yang , Peng Zhang , Gangyan Zeng , Yubo Li , Hailun Lin

This work explores text-to-image retrieval for queries that specify or describe a semantic category. While vision-and-language models (VLMs) like CLIP offer a straightforward open-vocabulary solution, they map text and images to distant…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Faizan Farooq Khan , Vladan Stojnić , Zakaria Laskar , Mohamed Elhoseiny , Giorgos Tolias

This paper presents a study showing the benefits of the EfficientNet models compared with heavier Convolutional Neural Networks (CNNs) in the Document Classification task, essential problem in the digitalization process of institutions. We…

计算机视觉与模式识别 · 计算机科学 2020-06-17 Javier Ferrando , Juan Luis Dominguez , Jordi Torres , Raul Garcia , David Garcia , Daniel Garrido , Jordi Cortada , Mateo Valero

Text classification is a fundamental task in NLP applications. Latest research in this field has largely been divided into two major sub-fields. Learning representations is one sub-field and learning deeper models, both sequential and…

计算与语言 · 计算机科学 2018-11-09 Mithun Das Gupta