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Information retrieval lies at the foundation of the modern digital industry. While natural language search has seen dramatic progress in recent years largely driven by embedding-based models and large-scale pretraining, the field still…

Artificial Intelligence · Computer Science 2026-02-20 Adrià Molina , Oriol Ramos Terrades , Josep Lladós

Providing systems the ability to relate linguistic and visual content is one of the hallmarks of computer vision. Tasks such as text-based image retrieval and image captioning were designed to test this ability but come with evaluation…

Computer Vision and Pattern Recognition · Computer Science 2019-04-08 Hexiang Hu , Ishan Misra , Laurens van der Maaten

Two primary input modalities prevail in image retrieval: sketch and text. While text is widely used for inter-category retrieval tasks, sketches have been established as the sole preferred modality for fine-grained image retrieval due to…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Subhadeep Koley , Ayan Kumar Bhunia , Aneeshan Sain , Pinaki Nath Chowdhury , Tao Xiang , Yi-Zhe Song

Fine-grained image classification, the task of distinguishing between visually similar subcategories within a broader category (e.g., bird species, car models, flower types), is a challenging computer vision problem. Traditional approaches…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Dmitry Demidov , Zaigham Zaheer , Omkar Thawakar , Salman Khan , Fahad Shahbaz Khan

The immense success of deep learning based methods in computer vision heavily relies on large scale training datasets. These richly annotated datasets help the network learn discriminative visual features. Collecting and annotating such…

Computer Vision and Pattern Recognition · Computer Science 2018-07-09 Yash Patel , Lluis Gomez , Raul Gomez , Marçal Rusiñol , Dimosthenis Karatzas , C. V. Jawahar

We introduce SPARse Fine-grained Contrastive Alignment (SPARC), a simple method for pretraining more fine-grained multimodal representations from image-text pairs. Given that multiple image patches often correspond to single words, we…

Fine-grained visual categorization (FGVC) is an important but challenging task due to high intra-class variances and low inter-class variances caused by deformation, occlusion, illumination, etc. An attention convolutional binary neural…

Computer Vision and Pattern Recognition · Computer Science 2020-03-17 Ruyi Ji , Longyin Wen , Libo Zhang , Dawei Du , Yanjun Wu , Chen Zhao , Xianglong Liu , Feiyue Huang

Reconstructing perceived images from human brain activity monitored by functional magnetic resonance imaging (fMRI) is hard, especially for natural images. Existing methods often result in blurry and unintelligible reconstructions with low…

Computer Vision and Pattern Recognition · Computer Science 2022-05-31 Mali Halac , Murat Isik , Hasan Ayaz , Anup Das

Text-visual (or called semantic-visual) embedding is a central problem in vision-language research. It typically involves mapping of an image and a text description to a common feature space through a CNN image encoder and a RNN language…

Computer Vision and Pattern Recognition · Computer Science 2019-06-03 Pranav Aggarwal , Zhe Lin , Baldo Faieta , Saeid Motiian

This paper proposes to go beyond the state-of-the-art deep convolutional neural network (CNN) by incorporating the information from object detection, focusing on dealing with fine-grained image classification. Unfortunately, CNN suffers…

Computer Vision and Pattern Recognition · Computer Science 2014-12-11 Xiaoyu Wang , Tianbao Yang , Guobin Chen , Yuanqing Lin

In this paper, we propose a novel approach for text detec- tion in natural images. Both local and global cues are taken into account for localizing text lines in a coarse-to-fine pro- cedure. First, a Fully Convolutional Network (FCN) model…

Computer Vision and Pattern Recognition · Computer Science 2016-04-19 Zheng Zhang , Chengquan Zhang , Wei Shen , Cong Yao , Wenyu Liu , Xiang Bai

Video-text retrieval has seen significant advancements, yet the ability of models to discern subtle differences in captions still requires verification. In this paper, we introduce a new approach for fine-grained evaluation. Our approach…

Computer Vision and Pattern Recognition · Computer Science 2024-10-18 Aozhu Chen , Hazel Doughty , Xirong Li , Cees G. M. Snoek

Several works have proposed to learn a two-path neural network that maps images and texts, respectively, to a same shared Euclidean space where geometry captures useful semantic relationships. Such a multi-modal embedding can be trained and…

Computer Vision and Pattern Recognition · Computer Science 2018-04-09 Martin Engilberge , Louis Chevallier , Patrick Pérez , Matthieu Cord

Image clustering divides a collection of images into meaningful groups, typically interpreted post-hoc via human-given annotations. Those are usually in the form of text, begging the question of using text as an abstraction for image…

Machine Learning · Computer Science 2024-02-20 Andreas Stephan , Lukas Miklautz , Kevin Sidak , Jan Philip Wahle , Bela Gipp , Claudia Plant , Benjamin Roth

We address the difficult problem of distinguishing fine-grained object categories in low resolution images. Wepropose a simple an effective deep learning approach that transfers fine-grained knowledge gained from high resolution training…

Computer Vision and Pattern Recognition · Computer Science 2016-05-24 Xingchao Peng , Judy Hoffman , Stella X. Yu , Kate Saenko

We present an end-to-end trainable multi-task network that addresses the problem of lexicon-free text extraction from complex documents. This network simultaneously solves the problems of text localization and text recognition and text…

Computation and Language · Computer Science 2019-06-25 Mohammad Reza Sarshogh , Keegan E. Hines

Brain-to-Image reconstruction aims to recover visual stimuli perceived by humans from brain activity. However, the reconstructed visual stimuli often missing details and semantic inconsistencies, which may be attributed to insufficient…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Runze Xia , Shuo Feng , Renzhi Wang , Congchi Yin , Xuyun Wen , Piji Li

Previous work has shown that feature maps of deep convolutional neural networks (CNNs) can be interpreted as feature representation of a particular image region. Features aggregated from these feature maps have been exploited for image…

Computer Vision and Pattern Recognition · Computer Science 2016-11-08 Jiedong Hao , Jing Dong , Wei Wang , Tieniu Tan

In this work, we propose a new technique that combines appearance and text in a Convolutional Neural Network (CNN), with the aim of detecting regions of different textual categories. We define a novel visual representation of the semantic…

Computer Vision and Pattern Recognition · Computer Science 2019-05-28 Roberto Arroyo , Javier Tovar , Francisco J. Delgado , Emilio J. Almazán , Diego G. Serrador , Antonio Hurtado

Image-based single-modality compression learning approaches have demonstrated exceptionally powerful encoding and decoding capabilities in the past few years , but suffer from blur and severe semantics loss at extremely low bitrates. To…

Image and Video Processing · Electrical Eng. & Systems 2023-04-27 Xuhao Jiang , Weimin Tan , Tian Tan , Bo Yan , Liquan Shen