Fast on-line signature recognition based on VQ with time modeling
- URL: http://arxiv.org/abs/2203.12104v1
- Date: Wed, 23 Mar 2022 00:04:27 GMT
- Title: Fast on-line signature recognition based on VQ with time modeling
- Authors: Juan-Manuel Pascual-Gaspar, Marcos Faundez-Zanuy, Carlos Vivaracho
- Abstract summary: This paper proposes a multi-section vector quantization approach for on-line signature recognition.
We have used the MCYT database, which consists of 330 users and 25 skilled forgeries per person performed by 5 different impostors.
- Score: 0.0
- License: http://creativecommons.org/licenses/by-nc-nd/4.0/
- Abstract: This paper proposes a multi-section vector quantization approach for on-line
signature recognition. We have used the MCYT database, which consists of 330
users and 25 skilled forgeries per person performed by 5 different impostors.
This database is larger than those typically used in the literature.
Nevertheless, we also provide results from the SVC database.
Our proposed system outperforms the winner of SVC with a reduced
computational requirement, which is around 47 times lower than DTW. In
addition, our system improves the database storage requirements due to vector
compression, and is more privacy-friendly as it is not possible to recover the
original signature using the codebooks. Experimental results with MCYT provide
a 99.76% identification rate and 2.46% EER (skilled forgeries and individual
threshold). Experimental results with SVC are 100% of identification rate and
0% (individual threshold) and 0.31% (general threshold) when using a
two-section VQ approach.
Related papers
- Two-step Authentication: Multi-biometric System Using Voice and Facial Recognition [0.4077787659104315]
We present a cost-effective two-step authentication system that integrates face identification and speaker verification using only a camera and microphone available on common devices.<n>For face recognition, a pruned VGG-16 based classifier is trained on an augmented dataset of 924 images from five subjects, with faces localized by MTCNN.<n>For voice recognition, a CNN speaker-verification model trained on LibriSpeech attains 98.9% accuracy and 3.456% EER on test-clean.
arXiv Detail & Related papers (2026-01-09T02:11:50Z) - Advancing Brainwave-Based Biometrics: A Large-Scale, Multi-Session Evaluation [4.114205202954365]
We conduct a large-scale study using a public brainwave dataset of 345 subjects and over 6,000 sessions (averaging 17 per subject) recorded over five years with three headsets.
Deep learning approaches outperform classic feature extraction methods by 16.4% in Equal Error Rates (EER)
We demonstrate that fewer brainwave measurement sensors can be used, with an acceptable increase in EER.
arXiv Detail & Related papers (2025-01-14T15:42:50Z) - OCRBench v2: An Improved Benchmark for Evaluating Large Multimodal Models on Visual Text Localization and Reasoning [72.57452266982642]
OCRBench v2 is a large-scale bilingual text-centric benchmark.<n>It covers 31 diverse scenarios, 10,000 human-verified question-answering pairs, and thorough evaluation metrics.<n>We find that most LMMs score below 50 (100 in total) and suffer from five-type limitations.
arXiv Detail & Related papers (2024-12-31T07:32:35Z) - Decorrelating Structure via Adapters Makes Ensemble Learning Practical for Semi-supervised Learning [50.868594148443215]
In computer vision, traditional ensemble learning methods exhibit either a low training efficiency or the limited performance.
We propose a lightweight, loss-function-free, and architecture-agnostic ensemble learning by the Decorrelating Structure via Adapters (DSA) for various visual tasks.
arXiv Detail & Related papers (2024-08-08T01:31:38Z) - Semi-Parametric Retrieval via Binary Token Index [71.78109794895065]
Semi-parametric Vocabulary Disentangled Retrieval (SVDR) is a novel semi-parametric retrieval framework.
It supports two types of indexes: an embedding-based index for high effectiveness, akin to existing neural retrieval methods; and a binary token index that allows for quick and cost-effective setup, resembling traditional term-based retrieval.
It achieves a 3% higher top-1 retrieval accuracy compared to the dense retriever DPR when using an embedding-based index and a 9% higher top-1 accuracy compared to BM25 when using a binary token index.
arXiv Detail & Related papers (2024-05-03T08:34:13Z) - Offline Handwriting Signature Verification: A Transfer Learning and
Feature Selection Approach [4.395397502990339]
The aim is to ascertain the authenticity of a provided handwritten signature, distinguishing between genuine and forged ones.
This issue has many applications in sectors such as finance, legal documentation, and security.
We collected a large dataset of 12600 images from 420 distinct individuals, and each individual has 30 signatures of a certain kind.
In the subsequent stage, the best features from each image were extracted using a deep learning model named MobileNetV2.
arXiv Detail & Related papers (2024-01-05T10:55:20Z) - Improving Selective Visual Question Answering by Learning from Your
Peers [74.20167944693424]
Visual Question Answering (VQA) models can have difficulties abstaining from answering when they are wrong.
We propose Learning from Your Peers (LYP) approach for training multimodal selection functions for making abstention decisions.
Our approach uses predictions from models trained on distinct subsets of the training data as targets for optimizing a Selective VQA model.
arXiv Detail & Related papers (2023-06-14T21:22:01Z) - Improving Presentation Attack Detection for ID Cards on Remote
Verification Systems [2.0305676256390934]
This paper presents an updated two-stage, end-to-end Presentation Attack Detection method for remote biometric verification systems of ID cards.
Proposal was developed using a database consisting of 190.000 real case Chilean ID card images with the support of a third-party company.
Our method is trained on two convolutional neural networks separately, reaching BPCERtextsubscript100 scores on ID cards attacks of 1.69% and 2.36% respectively.
arXiv Detail & Related papers (2023-01-23T16:59:26Z) - ECG Biometric Recognition: Review, System Proposal, and Benchmark
Evaluation [0.0]
We perform extensive analysis and comparison of different scenarios in ECG biometric recognition.
We present ECGXtractor, a robust Deep Learning technology trained with an in-house large-scale database.
We evaluate the system performance over four different databases.
arXiv Detail & Related papers (2022-04-08T10:53:11Z) - SVC-onGoing: Signature Verification Competition [29.588285669937388]
SVC-onGoing is based on the ICDAR 2021 Competition on On-Line Signature Verification (SVC 2021)
The goal of SVC-onGoing is to evaluate the limits of on-line signature verification systems on popular scenarios (office/mobile) and writing inputs (stylus/finger) through large-scale public databases.
The results obtained in SVC-onGoing prove the high potential of deep learning methods in comparison with traditional methods.
arXiv Detail & Related papers (2021-08-13T06:51:32Z) - When Liebig's Barrel Meets Facial Landmark Detection: A Practical Model [87.25037167380522]
We propose a model that is accurate, robust, efficient, generalizable, and end-to-end trainable.
In order to achieve a better accuracy, we propose two lightweight modules.
DQInit dynamically initializes the queries of decoder from the inputs, enabling the model to achieve as good accuracy as the ones with multiple decoder layers.
QAMem is designed to enhance the discriminative ability of queries on low-resolution feature maps by assigning separate memory values to each query rather than a shared one.
arXiv Detail & Related papers (2021-05-27T13:51:42Z) - Exploring Deep Learning for Joint Audio-Visual Lip Biometrics [54.32039064193566]
Audio-visual (AV) lip biometrics is a promising authentication technique that leverages the benefits of both the audio and visual modalities in speech communication.
The lack of a sizeable AV database hinders the exploration of deep-learning-based audio-visual lip biometrics.
We establish the DeepLip AV lip biometrics system realized with a convolutional neural network (CNN) based video module, a time-delay neural network (TDNN) based audio module, and a multimodal fusion module.
arXiv Detail & Related papers (2021-04-17T10:51:55Z) - Intrapersonal Parameter Optimization for Offline Handwritten Signature
Augmentation [17.11525750244627]
We propose a method to automatically model the most common writer variability traits.
The method is used to generate offline signatures in the image and the feature space and train an ASVS.
We evaluate the performance of an ASVS with the generated samples using three well-known offline signature datasets.
arXiv Detail & Related papers (2020-10-13T19:54:02Z) - A Computationally Efficient Multiclass Time-Frequency Common Spatial
Pattern Analysis on EEG Motor Imagery [164.93739293097605]
Common spatial pattern (CSP) is a popular feature extraction method for electroencephalogram (EEG) motor imagery (MI)
This study modifies the conventional CSP algorithm to improve the multi-class MI classification accuracy and ensure the computation process is efficient.
arXiv Detail & Related papers (2020-08-25T18:23:50Z) - Differentiable Reasoning over a Virtual Knowledge Base [156.94984221342716]
We consider the task of answering complex multi-hop questions using a corpus as a virtual knowledge base (KB)
In particular, we describe a neural module, DrKIT, that traverses textual data like a KB, softly following paths of relations between mentions of entities in the corpus.
DrKIT is very efficient, processing 10-100x more queries per second than existing multi-hop systems.
arXiv Detail & Related papers (2020-02-25T03:13:32Z)
This list is automatically generated from the titles and abstracts of the papers in this site.
This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.