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This paper presents a deep learning approach for image retrieval and pattern spotting in digital collections of historical documents. First, a region proposal algorithm detects object candidates in the document page images. Next, deep…

Computer Vision and Pattern Recognition · Computer Science 2022-08-05 Caio da S. Dias , Alceu de S. Britto , Jean P. Barddal , Laurent Heutte , Alessandro L. Koerich

Fingerprint mosaicking, which is the process of combining multiple fingerprint images into a single master fingerprint, is an essential process in modern biometric systems. However, it is prone to errors that can significantly degrade…

Computer Vision and Pattern Recognition · Computer Science 2025-01-10 Laurenz Ruzicka , Alexander Spenke , Stephan Bergmann , Gerd Nolden , Bernhard Kohn , Clemens Heitzinger

Modern deep learning approaches have achieved great success in many vision applications by training a model using all available task-specific data. However, there are two major obstacles making it challenging to implement for real life…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Jiangpeng He , Runyu Mao , Zeman Shao , Fengqing Zhu

The success of deep learning in intelligent ship visual perception relies heavily on rich image data. However, dedicated datasets for inland waterway vessels remain scarce, limiting the adaptability of visual perception systems in complex…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Shanshan Wang , Haixiang Xu , Hui Feng , Xiaoqian Wang , Pei Song , Sijie Liu , Jianhua He

Object recognition and detection are well-studied problems with a developed set of almost standard solutions. Identity documents recognition, classification, detection, and localization are the tasks required in a number of applications,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Mykola Kozlenko , Volodymyr Sendetskyi , Oleksiy Simkiv , Nazar Savchenko , Andy Bosyi

Object recognition is among the fundamental tasks in the computer vision applications, paving the path for all other image understanding operations. In every stage of progress in object recognition research, efforts have been made to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Aria Salari , Abtin Djavadifar , Xiangrui Liu , Homayoun Najjaran

Large-scale product recognition is one of the major applications of computer vision and machine learning in the e-commerce domain. Since the number of products is typically much larger than the number of categories of products, image-based…

Computer Vision and Pattern Recognition · Computer Science 2021-07-14 Jiangbo Yuan , An-Ti Chiang , Wen Tang , Antonio Haro

Statistical watermarking is a common approach for verifying whether text was written by a language model. Most existing schemes assume autoregressive generation, where tokens are produced left to right and contextual hashing is well…

Computation and Language · Computer Science 2026-05-08 Mohd Ruhul Ameen , Akif Islam , Nadim Mahmud , Md. Ekramul Hamid

Watermarking algorithms for large language models (LLMs) have attained high accuracy in detecting LLM-generated text. However, existing methods primarily focus on distinguishing fully watermarked text from non-watermarked text, overlooking…

Computation and Language · Computer Science 2025-02-25 Leyi Pan , Aiwei Liu , Yijian Lu , Zitian Gao , Yichen Di , Shiyu Huang , Lijie Wen , Irwin King , Philip S. Yu

Training high-quality instance segmentation models requires an abundance of labeled images with instance masks and classifications, which is often expensive to procure. Active learning addresses this challenge by striving for optimum…

Computer Vision and Pattern Recognition · Computer Science 2023-09-29 Ke Yu , Stephen Albro , Giulia DeSalvo , Suraj Kothawade , Abdullah Rashwan , Sasan Tavakkol , Kayhan Batmanghelich , Xiaoqi Yin

In this paper, we aim to address the large domain gap between high-resolution face images, e.g., from professional portrait photography, and low-quality surveillance images, e.g., from security cameras. Establishing an identity match…

Computer Vision and Pattern Recognition · Computer Science 2022-11-30 Klemen Grm , Berk Kemal Özata , Vitomir Štruc , Hazım Kemal Ekenel

Weakly supervised object detection (WSOD) using only image-level annotations has attracted a growing attention over the past few years. Whereas such task is typically addressed with a domain-specific solution focused on natural images, we…

Computer Vision and Pattern Recognition · Computer Science 2021-11-15 Nicolas Gonthier , Saïd Ladjal , Yann Gousseau

Efficient and reliable detection of generated images is critical for the responsible deployment of generative models. Existing approaches primarily focus on improving detection accuracy and robustness under various image transformations and…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-12-15 Xinrui Zhong , Xinze Feng , Jingwei Zuo , Fanjiang Ye , Yi Mu , Junfeng Guo , Heng Huang , Myungjin Lee , Yuke Wang

Deep neural networks yield promising results in a wide range of computer vision applications, including landmark detection. A major challenge for accurate anatomical landmark detection in volumetric images such as clinical CT scans is that…

Computer Vision and Pattern Recognition · Computer Science 2021-12-15 Tianyu Ma , Ajay Gupta , Mert R. Sabuncu

Recent advances in Large Language Models (LLMs) have raised urgent concerns about LLM-generated text authenticity, prompting regulatory demands for reliable identification mechanisms. Although watermarking offers a promising solution,…

Computation and Language · Computer Science 2025-08-26 Xiaoyan Feng , He Zhang , Yanjun Zhang , Leo Yu Zhang , Shirui Pan

This article presents an efficient end-to-end method to perform instance-level recognition employed to the task of labeling and ranking landmark images. In a first step, we embed images in a high dimensional feature space using…

Computer Vision and Pattern Recognition · Computer Science 2020-10-06 Christof Henkel , Philipp Singer

A key algorithm for understanding the world is material segmentation, which assigns a label (metal, glass, etc.) to each pixel. We find that a model trained on existing data underperforms in some settings and propose to address this with a…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Paul Upchurch , Ransen Niu

Statistical watermarking techniques are well-established for sequentially decoded language models (LMs). However, these techniques cannot be directly applied to order-agnostic LMs, as the tokens in order-agnostic LMs are not generated…

Computation and Language · Computer Science 2024-10-18 Ruibo Chen , Yihan Wu , Yanshuo Chen , Chenxi Liu , Junfeng Guo , Heng Huang

Existing computer vision technologies in artwork recognition focus mainly on instance retrieval or coarse-grained attribute classification. In this work, we present a novel dataset for fine-grained artwork attribute recognition. The images…

Computer Vision and Pattern Recognition · Computer Science 2019-06-05 Chenyang Zhang , Christine Kaeser-Chen , Grace Vesom , Jennie Choi , Maria Kessler , Serge Belongie

The state of the art performance of deep learning models comes at a high cost for companies and institutions, due to the tedious data collection and the heavy processing requirements. Recently, [35, 22] proposed to watermark convolutional…

Cryptography and Security · Computer Science 2021-04-14 Erwan Le Merrer , Patrick Perez , Gilles Trédan