Offline Handwritten Signature Verification Using Deep Neural Networks
Prior to the implementation of digitisation processes, the handwritten signature in an attendance sheet was the preferred way to prove the presence of each student in a classroom. The method is still preferred, for example, for short courses or places where other methods are not implemented. However...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
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| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/15/20/7611 |
| _version_ | 1827650492004564992 |
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| author | José A. P. Lopes Bernardo Baptista Nuno Lavado Mateus Mendes |
| author_facet | José A. P. Lopes Bernardo Baptista Nuno Lavado Mateus Mendes |
| author_sort | José A. P. Lopes |
| collection | DOAJ |
| description | Prior to the implementation of digitisation processes, the handwritten signature in an attendance sheet was the preferred way to prove the presence of each student in a classroom. The method is still preferred, for example, for short courses or places where other methods are not implemented. However, human verification of handwritten signatures is a tedious process. The present work describes two methods for classifying signatures in an attendance sheet as valid or not. One method based on Optical Mark Recognition is general but determines only the presence or absence of a signature. The other method uses a multiclass convolutional neural network inspired by the AlexNet architecture and, after training with a few pieces of genuine training data, shows over 85% of precision and recall recognizing the author of the signatures. The use of data augmentation and a larger number of genuine signatures ensures higher accuracy in validating the signatures. |
| first_indexed | 2024-03-09T20:17:58Z |
| format | Article |
| id | doaj.art-e2125c828a8d40ef9eb531a6a0efd6be |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T20:17:58Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-e2125c828a8d40ef9eb531a6a0efd6be2023-11-23T23:57:52ZengMDPI AGEnergies1996-10732022-10-011520761110.3390/en15207611Offline Handwritten Signature Verification Using Deep Neural NetworksJosé A. P. Lopes0Bernardo Baptista1Nuno Lavado2Mateus Mendes3Polytechnic of Coimbra, Instituto Superior de Engenharia de Coimbra, 3030-199 Coimbra, PortugalPolytechnic of Coimbra, Instituto Superior de Engenharia de Coimbra, 3030-199 Coimbra, PortugalPolytechnic of Coimbra, Instituto Superior de Engenharia de Coimbra, 3030-199 Coimbra, PortugalPolytechnic of Coimbra, Instituto Superior de Engenharia de Coimbra, 3030-199 Coimbra, PortugalPrior to the implementation of digitisation processes, the handwritten signature in an attendance sheet was the preferred way to prove the presence of each student in a classroom. The method is still preferred, for example, for short courses or places where other methods are not implemented. However, human verification of handwritten signatures is a tedious process. The present work describes two methods for classifying signatures in an attendance sheet as valid or not. One method based on Optical Mark Recognition is general but determines only the presence or absence of a signature. The other method uses a multiclass convolutional neural network inspired by the AlexNet architecture and, after training with a few pieces of genuine training data, shows over 85% of precision and recall recognizing the author of the signatures. The use of data augmentation and a larger number of genuine signatures ensures higher accuracy in validating the signatures.https://www.mdpi.com/1996-1073/15/20/7611handwritten signature recognitionOMRsignature classificationCNN |
| spellingShingle | José A. P. Lopes Bernardo Baptista Nuno Lavado Mateus Mendes Offline Handwritten Signature Verification Using Deep Neural Networks Energies handwritten signature recognition OMR signature classification CNN |
| title | Offline Handwritten Signature Verification Using Deep Neural Networks |
| title_full | Offline Handwritten Signature Verification Using Deep Neural Networks |
| title_fullStr | Offline Handwritten Signature Verification Using Deep Neural Networks |
| title_full_unstemmed | Offline Handwritten Signature Verification Using Deep Neural Networks |
| title_short | Offline Handwritten Signature Verification Using Deep Neural Networks |
| title_sort | offline handwritten signature verification using deep neural networks |
| topic | handwritten signature recognition OMR signature classification CNN |
| url | https://www.mdpi.com/1996-1073/15/20/7611 |
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