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Signature verification is an authentication technique that considers handwritten signature as a biometric. From a biometric perspective this project made use of automatic means through an integration of intelligent algorithms to perform…

信号处理 · 电气工程与系统科学 2018-07-30 Rozita Teymourzadeh , Martin kizito , Kok Wai Chan , Mok Vee Hoong

Surface reconstruction from multi-view images is a core challenge in 3D vision. Recent studies have explored signed distance fields (SDF) within Neural Radiance Fields (NeRF) to achieve high-fidelity surface reconstructions. However, these…

计算机视觉与模式识别 · 计算机科学 2024-12-23 Baixin Xu , Jiangbei Hu , Jiaze Li , Ying He

Recent advancements in Vision-Language Models (VLMs) have demonstrated strong capabilities in general visual reasoning, yet their applicability to rigorous biometric tasks remains unexplored. This work presents an exploratory study…

计算机视觉与模式识别 · 计算机科学 2026-05-15 Marta Robledo-Moreno , Ruben Vera-Rodriguez , Ruben Tolosana , Javier Ortega-Garcia

We propose a novel approach to robot-operated active understanding of unknown indoor scenes, based on online RGBD reconstruction with semantic segmentation. In our method, the exploratory robot scanning is both driven by and targeting at…

图形学 · 计算机科学 2022-01-14 Lintao Zheng , Chenyang Zhu , Jiazhao Zhang , Hang Zhao , Hui Huang , Matthias Niessner , Kai Xu

Recently, stereo vision based on lightweight RGBD cameras has been widely used in various fields. However, limited by the imaging principles, the commonly used RGB-D cameras based on TOF, structured light, or binocular vision acquire some…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Dongyue Chen , Tingxuan Huang , Zhimin Song , Shizhuo Deng , Tong Jia

Accurate segmentation of 3D medical scans is crucial for clinical diagnostics and treatment planning, yet existing methods often fail to achieve both high accuracy and computational efficiency across diverse anatomies and imaging…

计算机视觉与模式识别 · 计算机科学 2026-04-08 Chenxin Yuan , Shoupeng Chen , Haojiang Ye , Yiming Miao , Limei Peng , Pin-Han Ho

Autonomous vehicles (AVs) can achieve the desired results within a short duration by offloading tasks even requiring high computational power (e.g., object detection (OD)) to edge clouds. However, although edge clouds are exploited,…

网络与互联网体系结构 · 计算机科学 2020-08-18 Seung Wook Kim , Keunsoo Ko , Haneul Ko , Victor C. M. Leung

As 3D perception problems grow in popularity and the need for large-scale labeled datasets for LiDAR semantic segmentation increase, new methods arise that aim to reduce the necessity for dense annotations by employing weakly-supervised…

计算机视觉与模式识别 · 计算机科学 2023-11-28 Ozan Unal , Dengxin Dai , Lukas Hoyer , Yigit Baran Can , Luc Van Gool

AI Safety is a major concern in many deep learning applications such as autonomous driving. Given a trained deep learning model, an important natural problem is how to reliably verify the model's prediction. In this paper, we propose a…

计算机视觉与模式识别 · 计算机科学 2021-01-05 Tong Che , Xiaofeng Liu , Site Li , Yubin Ge , Ruixiang Zhang , Caiming Xiong , Yoshua Bengio

Finger vein authentication, recognized for its high security and specificity, has become a focal point in biometric research. Traditional methods predominantly concentrate on vein feature extraction for discriminative modeling, with a…

计算机视觉与模式识别 · 计算机科学 2024-02-06 Yanjun Liu , Wenming Yang , Qingmin Liao

Most existing real-time deep models trained with each frame independently may produce inconsistent results across the temporal axis when tested on a video sequence. A few methods take the correlations in the video sequence into…

计算机视觉与模式识别 · 计算机科学 2022-02-28 Yifan Liu , Chunhua Shen , Changqian Yu , Jingdong Wang

Methods for learning feature representations for Offline Handwritten Signature Verification have been successfully proposed in recent literature, using Deep Convolutional Neural Networks to learn representations from signature pixels. Such…

计算机视觉与模式识别 · 计算机科学 2018-04-25 Luiz G. Hafemann , Robert Sabourin , Luiz S. Oliveira

In this paper, we present a deep learning-based network, GCNv2, for generation of keypoints and descriptors. GCNv2 is built on our previous method, GCN, a network trained for 3D projective geometry. GCNv2 is designed with a binary…

机器人学 · 计算机科学 2019-06-19 Jiexiong Tang , Ludvig Ericson , John Folkesson , Patric Jensfelt

Unsupervised online 3D instance segmentation is a fundamental yet challenging task, as it requires maintaining consistent object identities across LiDAR scans without relying on annotated training data. Existing methods, such as UNIT, have…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Yifan Zhang , Wei Zhang , Chuangxin He , Zhonghua Miao , Junhui Hou

Signature verification has been one of the major researched areas in the field of computer vision. Many financial and legal organizations use signature verification as access control and authentication. Signature images are not rich in…

计算机视觉与模式识别 · 计算机科学 2021-08-05 Anamika Jain , Satish Kumar Singh , Krishna Pratap Singh

Reliable training of generative adversarial networks (GANs) typically require massive datasets in order to model complicated distributions. However, in several applications, training samples obey invariances that are \textit{a priori}…

Offline Handwritten Signature verification presents a challenging Pattern Recognition problem, where only knowledge of the positive class is available for training. While classifiers have access to a few genuine signatures for training,…

计算机视觉与模式识别 · 计算机科学 2019-10-18 Luiz G. Hafemann , Robert Sabourin , Luiz S. Oliveira

In recent years, there has been an increasing number of information hiding techniques based on network streaming media, focusing on how to covertly and efficiently embed secret information into real-time transmitted network media signals to…

密码学与安全 · 计算机科学 2024-11-22 Pengcheng Zhou , Zhengyang Fang , Zhongliang Yang , Zhili Zhou , Linna Zhou

We propose a method to remotely verify the authenticity of Optically Variable Devices (OVDs), often referred to as ``holograms'', in identity documents. Our method processes video clips captured with smartphones under common lighting…

计算机视觉与模式识别 · 计算机科学 2024-04-29 Glen Pouliquen , Guillaume Chiron , Joseph Chazalon , Thierry Géraud , Ahmad Montaser Awal

The rapid evolution of generative paradigms has enabled the creation of highly realistic imagery, which escalating the risks of identity fraud and the dissemination of disinformation. Most existing approaches frame face forgery detection as…

计算机视觉与模式识别 · 计算机科学 2026-05-14 Qingchao Jiang , Zhenxuan Hou , Zhiying Zhu , Zhenxing Qian , Xinpeng Zhang , Zaiwang Gu