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Fingerphoto images captured using a smartphone are successfully used to verify the individuals that have enabled several applications. This work presents a novel algorithm for fingerphoto verification using a nested residual block:…

计算机视觉与模式识别 · 计算机科学 2022-12-13 Raghavendra Ramachandra , Hailin Li

The device fingerprinting technique extracts fingerprints based on the hardware characteristics of the device to identify the device. The primary goal of device fingerprinting is to accurately and uniquely identify a device, which requires…

密码学与安全 · 计算机科学 2023-10-12 Dawei Li , Di Liu , Yangkun Ren , Ziyi Wang , Yu Sun , Zhenyu Guan , Qianhong Wu , Jianwei Liu

This paper presents a human verification scheme in two independent stages to overcome the vulnerabilities of attacks and to enhance security. At the first stage, a hand image-based CAPTCHA (HandCAPTCHA) is tested to avert automated…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Asish Bera , Debotosh Bhattacharjee , Hubert P H Shum

We present SSL-HV: Self-Supervised Learning approaches applied to the task of Handwriting Verification. This task involves determining whether a given pair of handwritten images originate from the same or different writer distribution. We…

计算机视觉与模式识别 · 计算机科学 2024-08-02 Mihir Chauhan , Mohammad Abuzar Hashemi , Abhishek Satbhai , Mir Basheer Ali , Bina Ramamurthy , Mingchen Gao , Siwei Lyu , Sargur Srihari

In this paper, a writer-dependent signature verification method is proposed. Two different types of texture features, namely Wavelet and Local Quantized Patterns (LQP) features, are employed to extract two kinds of transform and statistical…

计算机视觉与模式识别 · 计算机科学 2019-05-07 Ankan Kumar Bhunia , Alireza Alaei , Partha Pratim Roy

Backdoor-based fingerprinting has emerged as an effective technique for tracing the ownership of large language models. However, in real-world deployment scenarios, developers often instantiate multiple downstream models from a shared base…

密码学与安全 · 计算机科学 2025-08-27 Zhenhua Xu , Qichen Liu , Zhebo Wang , Wenpeng Xing , Dezhang Kong , Mohan Li , Meng Han

Partial fingerprint recognition is a method to recognize an individual when the sensor size has a small form factor in accepting a full fingerprint. It is also used in forensic research to identify the partial fingerprints collected from…

计算机视觉与模式识别 · 计算机科学 2019-11-11 Mahesh Joshi , Bodhisatwa Mazumdar , Somnath Dey

Human fingerprints serve as one unique and powerful characteristic for each person, from which policemen can recognize the identity. Similar to humans, many natural bodies and intrinsic mechanical qualities can also be uniquely identified…

机器学习 · 计算机科学 2024-03-25 Yongchao Chen

Biometric-based identification has drawn a lot of attention in the recent years. Among all biometrics, palmprint is known to possess a rich set of features. In this paper we have proposed to use DCT-based features in parallel with…

计算机视觉与模式识别 · 计算机科学 2015-11-30 Shervin Minaee , AmirAli Abdolrashidi

The goal of this work is the identification of humans based on motion data in the form of natural hand gestures. In this paper, the identification problem is formulated as classification with classes corresponding to persons' identities,…

人机交互 · 计算机科学 2013-03-20 Michał Romaszewski , Przemysław Głomb , Piotr Gawron

The primary purpose of a fingerprint recognition system is to ensure a reliable and accurate user authentication, but the security of the recognition system itself can be jeopardized by spoof attacks. This study addresses the problem of…

计算机视觉与模式识别 · 计算机科学 2017-12-14 Tarang Chugh , Kai Cao , Anil K. Jain

Emotion recognition technology is crucial in providing a personalized user experience. It is especially important in virtual reality(VR) to assess the user's emotions to enhance their sense of immersion. We propose an emotion recognition…

人机交互 · 计算机科学 2019-12-04 Jaehyun Nam , Hyesun Chung , Young ah Seong , Honggu Lee

Cardiac disease evaluation depends on multiple diagnostic modalities: electrocardiogram (ECG) to diagnose abnormal heart rhythms, and imaging modalities such as Magnetic Resonance Imaging (MRI), Computed Tomography (CT) and echocardiography…

信号处理 · 电气工程与系统科学 2024-12-25 Evariste Njomgue Fotso , Buntheng Ly , Hubert Cochet , Maxime Sermesant

The physiological and behavioral trait is employed to develop biometric authentication systems. The proposed work deals with the authentication of iris and signature based on minimum variance criteria. The iris patterns are preprocessed…

计算机视觉与模式识别 · 计算机科学 2010-08-11 S. V. Sheela , K. R. Radhika

The core for tackling the fine-grained visual categorization (FGVC) is to learn subtle yet discriminative features. Most previous works achieve this by explicitly selecting the discriminative parts or integrating the attention mechanism via…

计算机视觉与模式识别 · 计算机科学 2022-03-02 Jun Wang , Xiaohan Yu , Yongsheng Gao

This Paper describes a hand geometry biometric identification system. We have acquired a database of 22 people using a conventional document scanner. The experimental section consists of a study about the discrimination capability of…

计算机视觉与模式识别 · 计算机科学 2022-04-11 Marcos Faundez-Zanuy , Guillermo Mar Navarro Mérida

Given a graph with partial observations of node features, how can we estimate the missing features accurately? Feature estimation is a crucial problem for analyzing real-world graphs whose features are commonly missing during the data…

机器学习 · 计算机科学 2023-04-07 Jaemin Yoo , Hyunsik Jeon , Jinhong Jung , U Kang

In this study, a novel method to obtain user-dependent human activity recognition models unobtrusively by exploiting the sensors of a smartphone is presented. The recognition consists of two models: sensor fusion-based user-independent…

机器学习 · 计算机科学 2019-05-30 Pekka Siirtola , Heli Koskimäki , Juha Röning

Hand segmentation and fingertip detection play an indispensable role in hand gesture-based human-machine interaction systems. In this study, we propose a method to discriminate hand components and to locate fingertips in RGB-D images. The…

计算机视觉与模式识别 · 计算机科学 2020-03-12 Duong Hai Nguyen , Tai Nhu Do , In-Seop Na , Soo-Hyung Kim

We present in this paper a new approach for hand gesture analysis that allows digit recognition. The analysis is based on extracting a set of features from a hand image and then combining them by using an induction graph. The most important…

计算机视觉与模式识别 · 计算机科学 2009-06-30 Ahmed Ben Jmaa , Walid Mahdi , Yousra Ben Jemaa , Abdelmajid Ben Hamadou