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The Siamese network is becoming the mainstream in change detection of remote sensing images (RSI). However, in recent years, the development of more complicated structure, module and training processe has resulted in the cumbersome model,…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Biyuan Liu , Huaixin Chen , Zhixi Wang

Usually, in a real-world scenario, few signature samples are available to train an automatic signature verification system (ASVS). However, such systems do indeed need a lot of signatures to achieve an acceptable performance. Neuromotor…

Computer Vision and Pattern Recognition · Computer Science 2020-10-15 Teruo M. Maruyama , Luiz S. Oliveira , Alceu S. Britto , Robert Sabourin

Handwriting signatures, as an important means of identity recognition, are widely used in multiple fields such as financial transactions, commercial contracts and personal affairs due to their legal effect and uniqueness. In forensic…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Wanghui Xiao

A critical challenge problem of scene change detection is that noisy changes generated by varying illumination, shadows and camera viewpoint make variances of a scene difficult to define and measure since the noisy changes and semantic ones…

Computer Vision and Pattern Recognition · Computer Science 2018-11-13 Enqiang Guo , Xinsha Fu , Jiawei Zhu , Min Deng , Yu Liu , Qing Zhu , Haifeng Li

This paper proposes a novel scheme to identify the authorship of a document based on handwritten input word images of an individual. Our approach is text-independent and does not place any restrictions on the size of the input word images…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Vineet Kumar , Suresh Sundaram

Convolutional neural networks (CNNs) have recently become the state-of-the-art tool for large-scale image classification. In this work we propose the use of activation features from CNNs as local descriptors for writer identification. A…

Computer Vision and Pattern Recognition · Computer Science 2024-02-28 Vincent Christlein , David Bernecker , Andreas Maier , Elli Angelopoulou

Dynamic convolution demonstrates outstanding representation capabilities, which are crucial for natural image segmentation. However, it fails when applied to medical image segmentation (MIS) and infrared small target segmentation (IRSTS)…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Bingkun Nian , Fenghe Tang , Jianrui Ding , Jie Yang , Zhonglong Zheng , Shaohua Kevin Zhou , Wei Liu

The ability to identify and localize new objects robustly and effectively is vital for robotic grasping and manipulation in warehouses or smart factories. Deep convolutional neural networks (DCNNs) have achieved the state-of-the-art…

Robotics · Computer Science 2019-03-05 Benjamin Schnieders , Shan Luo , Gregory Palmer , Karl Tuyls

This study investigates the vulnerabilities of data-driven offline signature verification (DASV) systems to generative attacks and proposes robust countermeasures. Specifically, we explore the efficacy of Variational Autoencoders (VAEs) and…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 An Ngo , Rajesh Kumar , Phuong Cao

Convolutional neural networks (CNNs) are a promising technique for automated glaucoma diagnosis from images of the fundus, and these images are routinely acquired as part of an ophthalmic exam. Nevertheless, CNNs typically require a large…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Rui Fan , Christopher Bowd , Nicole Brye , Mark Christopher , Robert N. Weinreb , David Kriegman , Linda M. Zangwill

Although secular, handwritten signature is one of the most reliable biometric methods used by most countries. In the last ten years, the application of technology for verification of handwritten signatures has evolved strongly, including…

Computer Vision and Pattern Recognition · Computer Science 2020-06-01 Celso A. M. Lopes Junior , Matheus Henrique M. da Silva , Byron Leite Dantas Bezerra , Bruno Jose Torres Fernandes , Donato Impedovo

Binary Neural Networks~(BNNs) have been proven to be highly effective for deploying deep neural networks on mobile and embedded platforms. Most existing works focus on minimizing quantization errors, improving representation ability, or…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Jingyang Xiang , Zuohui Chen , Siqi Li , Qing Wu , Yong Liu

Discriminative correlation filters (DCF) and siamese networks have achieved promising performance on visual tracking tasks thanks to their superior computational efficiency and reliable similarity metric learning, respectively. However, how…

Computer Vision and Pattern Recognition · Computer Science 2021-03-22 Xizhe Xue , Ying Li , Xiaoyue Yin , Qiang Shen

Deep Convolutional Neural Networks (CNNs) have been pushing the frontier of the face recognition research in the past years. However, existing general CNN face models generalize poorly to the scenario of occlusions on variable facial areas.…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Lingxue Song , Dihong Gong , Zhifeng Li , Changsong Liu , Wei Liu

The area of Handwritten Signature Verification has been broadly researched in the last decades, but remains an open research problem. The objective of signature verification systems is to discriminate if a given signature is genuine…

Computer Vision and Pattern Recognition · Computer Science 2019-01-25 Luiz G. Hafemann , Robert Sabourin , Luiz S. Oliveira

Weakly supervised person search aims to perform joint pedestrian detection and re-identification (re-id) with only person bounding-box annotations. Recently, the idea of contrastive learning is initially applied to weakly supervised person…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Jiabei Wang , Yanwei Pang , Jiale Cao , Hanqing Sun , Zhuang Shao , Xuelong Li

Single online handwritten Chinese character recognition~(single OLHCCR) has achieved prominent performance. However, in real application scenarios, users always write multiple Chinese characters to form one complete sentence and the…

Computer Vision and Pattern Recognition · Computer Science 2021-08-06 Yunxin Li , Qian Yang , Qingcai Chen , Lin Ma , Baotian Hu , Xiaolong Wang , Yuxin Ding

Deep convolutional neural networks (DCNNs) have achieved great success in various computer vision and pattern recognition applications, including those for handwritten Chinese character recognition (HCCR). However, most current DCNN-based…

Computer Vision and Pattern Recognition · Computer Science 2015-05-29 Weixin Yang , Lianwen Jin , Zecheng Xie , Ziyong Feng

The increasing availability of advanced image editing tools has led to a significant rise in manipulated digital content, posing serious challenges for digital forensics and information security. This study presents a transfer…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Fatma Betul Buyuk , Gozde Karatas Baydogmus , Ali Buldu , Ayaulym Tulendiyeva , Zhuldyz Baizhumanova

Deep Convolutional Neural Network (DCNNs) come to be the most widely used solution for most computer vision related tasks, and one of the most important application scenes is face verification. Due to its high-accuracy performance, deep…

Computer Vision and Pattern Recognition · Computer Science 2019-12-03 Jintao Zhang