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Text recognition is a long-standing research problem for document digitalization. Existing approaches are usually built based on CNN for image understanding and RNN for char-level text generation. In addition, another language model is…

Computation and Language · Computer Science 2022-09-07 Minghao Li , Tengchao Lv , Jingye Chen , Lei Cui , Yijuan Lu , Dinei Florencio , Cha Zhang , Zhoujun Li , Furu Wei

Optical Character Recognition (OCR) of eighteenth-century printed texts remains challenging due to degraded print quality, archaic glyphs, and non-standardized orthography. Although transformer-based OCR systems and Vision-Language Models…

Computer Vision and Pattern Recognition · Computer Science 2026-02-17 Ari Vesalainen , Eetu Mäkelä , Laura Ruotsalainen , Mikko Tolonen

Optical Character Recognition (OCR) is a widely used tool to extract text from scanned documents. Today, the state-of-the-art is achieved by exploiting deep neural networks. However, the cost of this performance is paid at the price of…

Cryptography and Security · Computer Science 2023-10-13 Mauro Conti , Nicola Farronato , Stefanos Koffas , Luca Pajola , Stjepan Picek

Text-based machine learning models are vulnerable to an emerging class of Unicode-based adversarial examples capable of tricking a model into misreading text with potentially disastrous effects. The primary existing defense against these…

Cryptography and Security · Computer Science 2025-10-14 Nicholas Boucher , Jenny Blessing , Ilia Shumailov , Ross Anderson , Nicolas Papernot

Optical character recognition (OCR) is widely applied in real applications serving as a key preprocessing tool. The adoption of deep neural network (DNN) in OCR results in the vulnerability against adversarial examples which are crafted to…

Computer Vision and Pattern Recognition · Computer Science 2020-02-11 Lu Chen , Wei Xu

Adversarially perturbed images of text can cause sophisticated OCR systems to produce misleading or incorrect transcriptions from seemingly invisible changes to humans. Some of these perturbations even survive physical capture, posing…

Machine Learning · Computer Science 2025-11-21 Bhagyesh Kumar , A S Aravinthakashan , Akshat Satyanarayan , Ishaan Gakhar , Ujjwal Verma

Recent advances in deep neural networks (DNNs) have significantly enhanced the capabilities of optical character recognition (OCR) technology, enabling its adoption to a wide range of real-world applications. Despite this success, DNN-based…

Cryptography and Security · Computer Science 2023-01-16 Chissanupong Jiamsuchon , Jakapan Suaboot , Norrathep Rattanavipanon

Signature-based malware detectors have proven to be insufficient as even a small change in malignant executable code can bypass these signature-based detectors. Many machine learning-based models have been proposed to efficiently detect a…

Cryptography and Security · Computer Science 2024-09-02 Yash Jakhotiya , Heramb Patil , Jugal Rawlani , Sunil B. Mane

Robust object detection is critical for autonomous driving and mobile robotics, where accurate detection of vehicles, pedestrians, and obstacles is essential for ensuring safety. Despite the advancements in object detection transformers…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Amirhossein Nazeri , Chunheng Zhao , Pierluigi Pisu

This study explores the transfer learning capabilities of the TrOCR architecture to Spanish. TrOCR is a transformer-based Optical Character Recognition (OCR) model renowned for its state-of-the-art performance in English benchmarks.…

Artificial Intelligence · Computer Science 2024-07-10 Filipe Lauar , Valentin Laurent

Ancient history relies on the study of ancient characters. However, real-world scanned oracle characters are difficult to collect and annotate, posing a major obstacle for oracle character recognition (OrCR). Besides, serious abrasion and…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Mei Wang , Weihong Deng , Sen Su

Deep learning models achieve remarkable accuracy in computer vision tasks, yet remain vulnerable to adversarial examples--carefully crafted perturbations to input images that can deceive these models into making confident but incorrect…

Computer Vision and Pattern Recognition · Computer Science 2025-04-18 Khoi Nguyen Tiet Nguyen , Wenyu Zhang , Kangkang Lu , Yuhuan Wu , Xingjian Zheng , Hui Li Tan , Liangli Zhen

Recent advancements in deep neural networks have markedly enhanced the performance of computer vision tasks, yet the specialized nature of these networks often necessitates extensive data and high computational power. Addressing these…

Computer Vision and Pattern Recognition · Computer Science 2024-01-03 Jiayou Chao , Wei Zhu

Several years of research have shown that machine-learning systems are vulnerable to adversarial examples, both in theory and in practice. Until now, such attacks have primarily targeted visual models, exploiting the gap between human and…

Computation and Language · Computer Science 2021-12-14 Nicholas Boucher , Ilia Shumailov , Ross Anderson , Nicolas Papernot

Today, the security of many domains rely on the use of Machine Learning to detect threats, identify vulnerabilities, and safeguard systems from attacks. Recently, transformer architectures have improved the state-of-the-art performance on a…

Cryptography and Security · Computer Science 2023-10-19 Kunyang Li , Kyle Domico , Jean-Charles Noirot Ferrand , Patrick McDaniel

Test automation has become increasingly important as the complexity of both design and content in Human Machine Interface (HMI) software continues to grow. Current standard practice uses Optical Character Recognition (OCR) techniques to…

Computer Vision and Pattern Recognition · Computer Science 2025-04-10 Yupeng Cheng , Zi Pong Lim , Sarthak Ketanbhai Modi , Yon Shin Teo , Yushi Cao , Shang-Wei Lin

Optical character recognition (OCR) is a widely used pattern recognition application in numerous domains. There are several feature-rich, general-purpose OCR solutions available for consumers, which can provide moderate to excellent…

Computer Vision and Pattern Recognition · Computer Science 2021-05-18 Ayantha Randika , Nilanjan Ray , Xiao Xiao , Allegra Latimer

We propose a novel framework to evaluate the robustness of transformer-based form field extraction methods via form attacks. We introduce 14 novel form transformations to evaluate the vulnerability of the state-of-the-art field extractors…

Computer Vision and Pattern Recognition · Computer Science 2021-10-12 Le Xue , Mingfei Gao , Zeyuan Chen , Caiming Xiong , Ran Xu

Transformer-based pre-trained models of code (PTMC) have been widely utilized and have achieved state-of-the-art performance in many mission-critical applications. However, they can be vulnerable to adversarial attacks through identifier…

Cryptography and Security · Computer Science 2023-11-27 Xiaohu Du , Ming Wen , Zichao Wei , Shangwen Wang , Hai Jin

New transformer networks have been integrated into object tracking pipelines and have demonstrated strong performance on the latest benchmarks. This paper focuses on understanding how transformer trackers behave under adversarial attacks…

Computer Vision and Pattern Recognition · Computer Science 2024-06-05 Fatemeh Nourilenjan Nokabadi , Jean-François Lalonde , Christian Gagné
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