Contrastive Masked Autoencoders for Character-Level Open-Set Writer Identification

Fuente: arXiv
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Main Authors: Jiang, Xiaowei, Ma, Wenhao, Duan, Yiqun, Do, Thomas, Lin, Chin-Teng
Format: Preprint
Published: 2025
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_version_ 1866913659061534720
author Jiang, Xiaowei
Ma, Wenhao
Duan, Yiqun
Do, Thomas
Lin, Chin-Teng
author_facet Jiang, Xiaowei
Ma, Wenhao
Duan, Yiqun
Do, Thomas
Lin, Chin-Teng
contents In the realm of digital forensics and document authentication, writer identification plays a crucial role in determining the authors of documents based on handwriting styles. The primary challenge in writer-id is the "open-set scenario", where the goal is accurately recognizing writers unseen during the model training. To overcome this challenge, representation learning is the key. This method can capture unique handwriting features, enabling it to recognize styles not previously encountered during training. Building on this concept, this paper introduces the Contrastive Masked Auto-Encoders (CMAE) for Character-level Open-Set Writer Identification. We merge Masked Auto-Encoders (MAE) with Contrastive Learning (CL) to simultaneously and respectively capture sequential information and distinguish diverse handwriting styles. Demonstrating its effectiveness, our model achieves state-of-the-art (SOTA) results on the CASIA online handwriting dataset, reaching an impressive precision rate of 89.7%. Our study advances universal writer-id with a sophisticated representation learning approach, contributing substantially to the ever-evolving landscape of digital handwriting analysis, and catering to the demands of an increasingly interconnected world.
format Preprint
id arxiv_https___arxiv_org_abs_2501_11895
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Contrastive Masked Autoencoders for Character-Level Open-Set Writer Identification
Jiang, Xiaowei
Ma, Wenhao
Duan, Yiqun
Do, Thomas
Lin, Chin-Teng
Computer Vision and Pattern Recognition
Machine Learning
In the realm of digital forensics and document authentication, writer identification plays a crucial role in determining the authors of documents based on handwriting styles. The primary challenge in writer-id is the "open-set scenario", where the goal is accurately recognizing writers unseen during the model training. To overcome this challenge, representation learning is the key. This method can capture unique handwriting features, enabling it to recognize styles not previously encountered during training. Building on this concept, this paper introduces the Contrastive Masked Auto-Encoders (CMAE) for Character-level Open-Set Writer Identification. We merge Masked Auto-Encoders (MAE) with Contrastive Learning (CL) to simultaneously and respectively capture sequential information and distinguish diverse handwriting styles. Demonstrating its effectiveness, our model achieves state-of-the-art (SOTA) results on the CASIA online handwriting dataset, reaching an impressive precision rate of 89.7%. Our study advances universal writer-id with a sophisticated representation learning approach, contributing substantially to the ever-evolving landscape of digital handwriting analysis, and catering to the demands of an increasingly interconnected world.
title Contrastive Masked Autoencoders for Character-Level Open-Set Writer Identification
topic Computer Vision and Pattern Recognition
Machine Learning
url https://arxiv.org/abs/2501.11895