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Visual representations are central to the learning and generalization capabilities of robotic manipulation policies. While existing methods rely on global or dense features, such representations often entangle task-relevant and irrelevant…

Robotics · Computer Science 2025-05-20 Alexandre Chapin , Bruno Machado , Emmanuel Dellandrea , Liming Chen

We investigate how to train a high quality optical character recognition (OCR) model for difficult historical typefaces on degraded paper. Through extensive grid searches, we obtain a neural network architecture and a set of optimal data…

Computer Vision and Pattern Recognition · Computer Science 2020-08-07 Bernhard Liebl , Manuel Burghardt

Modern Automatic License Plate Recognition (ALPR) systems achieve outstanding performance in controlled, well-defined scenarios. However, large-scale real-world usage remains challenging due to low-quality imaging devices, compression…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Lucas Wojcik , Eduardo A. F. Machoski , Eduil Nascimento , Rayson Laroca , David Menotti

Good OCR results for historical printings rely on the availability of recognition models trained on diplomatic transcriptions as ground truth, which is both a scarce resource and time-consuming to generate. Instead of having to train a…

Digital Libraries · Computer Science 2016-10-21 U. Springmann , F. Fink , K. U. Schulz

License plate scanners have grown in popularity in parking lots during the past few years. In order to quickly identify license plates, traditional plate recognition devices used in parking lots employ a fixed source of light and shooting…

Computer Vision and Pattern Recognition · Computer Science 2024-01-03 Siddharth Ganjoo

This paper studies vehicle attribute recognition by appearance. In the literature, image-based target recognition has been extensively investigated in many use cases, such as facial recognition, but less so in the field of vehicle attribute…

Computer Vision and Pattern Recognition · Computer Science 2020-07-01 Xingyang Ni , Heikki Huttunen

In this paper we tackle the problem of vehicle re-identification in a camera network utilizing triplet embeddings. Re-identification is the problem of matching appearances of objects across different cameras. With the proliferation of…

Computer Vision and Pattern Recognition · Computer Science 2019-08-12 Ratnesh Kumar , Edwin Weill , Farzin Aghdasi , Parthsarathy Sriram

This study evaluates four open-source Optical Character Recognition (OCR) systems which are Tesseract, EasyOCR, PaddleOCR, and TrOCR on real world food packaging images. The aim is to assess their ability to extract ingredient lists and…

Computer Vision and Pattern Recognition · Computer Science 2025-10-07 Mayimunah Nagayi , Alice Khan , Tamryn Frank , Rina Swart , Clement Nyirenda

This work draws attention to the large fraction of near-duplicates in the training and test sets of datasets widely adopted in License Plate Recognition (LPR) research. These duplicates refer to images that, although different, show the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-07 Rayson Laroca , Valter Estevam , Alceu S. Britto , Rodrigo Minetto , David Menotti

Image colorization estimates RGB colors for grayscale images or video frames to improve their aesthetic and perceptual quality. Over the last decade, deep learning techniques for image colorization have significantly progressed,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Saeed Anwar , Muhammad Tahir , Chongyi Li , Ajmal Mian , Fahad Shahbaz Khan , Abdul Wahab Muzaffar

Occlusions of objects is one of the indispensable problems in Computer vision. While Convolutional Neural Net-works (CNNs) provide various state of the art approaches for regular image classification, they however, prove to be not as…

Computer Vision and Pattern Recognition · Computer Science 2023-04-26 Karthick Prasad Gunasekaran , Nikita Jaiman

Road detection or traversability analysis has been a key technique for a mobile robot to traverse complex off-road scenes. The problem has been mainly formulated in early works as a binary classification one, e.g. associating pixels with…

Computer Vision and Pattern Recognition · Computer Science 2021-03-08 Biao Gao , Shaochi Hu , Xijun Zhao , Huijing Zhao

Several computer vision applications like vehicle license plate recognition, captcha recognition, printed or handwriting character recognition from images etc., text polarity detection and binarization are the important preprocessing tasks.…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Narendra Singh Yadav , Pavan Kumar Perepu

Optical Character Recognition (OCR) in multilingual, noisy, and diverse real-world images remains a significant challenge for optical character recognition systems. With the rise of Large Vision-Language Models (LVLMs), there is growing…

Computation and Language · Computer Science 2025-09-05 Aryan Gupta , Anupam Purwar

Logging of incoming/outgoing vehicles serves as a piece of critical information for root-cause analysis to combat security breach incidents in various sensitive organizations. RFID tagging hampers the scalability of vehicle tracking…

Computer Vision and Pattern Recognition · Computer Science 2022-09-14 Pranav Kant Gaur , Abhilash Bhardwaj , Pritam Shete , Mohini Laghate , Dinesh M Sarode

This paper proposes a novel method to optimize bandwidth usage for object detection in critical communication scenarios. We develop two operating models of active information seeking. The first model identifies promising regions in low…

Computer Vision and Pattern Recognition · Computer Science 2018-03-12 Laura Lopez-Fuentes , Andrew D. Bagdanov , Joost van de Weijer , Harald Skinnemoen

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

This research aims to explore the application of deep learning in autonomous driving computer vision technology and its impact on improving system performance. By using advanced technologies such as convolutional neural networks (CNN),…

Computer Vision and Pattern Recognition · Computer Science 2024-06-05 Jingyu Zhang , Jin Cao , Jinghao Chang , Xinjin Li , Houze Liu , Zhenglin Li

Despite the evident practical importance of license plate recognition (LPR), corresponding research is limited by the volume of publicly available datasets due to privacy regulations such as the General Data Protection Regulation (GDPR). To…

Computer Vision and Pattern Recognition · Computer Science 2025-01-08 Mariia Shpir , Nadiya Shvai , Amir Nakib

Academic research tends to focus on new models for document understanding creating a wide gap in the literature between model definition and running models at production scale. To close that gap, we present a microservice architecture that…