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Object detection plays an important role in current solutions to vision and language tasks like image captioning and visual question answering. However, popular models like Faster R-CNN rely on a costly process of annotating ground-truths…

Computation and Language · Computer Science 2019-09-06 Soravit Changpinyo , Bo Pang , Piyush Sharma , Radu Soricut

Handwritten character recognition is a hot topic for research nowadays. If we can convert a handwritten piece of paper into a text-searchable document using the Optical Character Recognition (OCR) technique, we can easily understand the…

Computer Vision and Pattern Recognition · Computer Science 2022-12-26 Md Tanvir Rouf Shawon , Raihan Tanvir , Md. Golam Rabiul Alam

This paper proposes a new method, OFA-OCR, to transfer multimodal pretrained models to text recognition. Specifically, we recast text recognition as image captioning and directly transfer a unified vision-language pretrained model to the…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Junyang Lin , Xuancheng Ren , Yichang Zhang , Gao Liu , Peng Wang , An Yang , Chang Zhou

Despite the remarkable accuracy of deep neural networks in object detection, they are costly to train and scale due to supervision requirements. Particularly, learning more object categories typically requires proportionally more bounding…

Computer Vision and Pattern Recognition · Computer Science 2021-03-16 Alireza Zareian , Kevin Dela Rosa , Derek Hao Hu , Shih-Fu Chang

We demonstrate that state-of-the-art optical character recognition (OCR) based on deep learning is vulnerable to adversarial images. Minor modifications to images of printed text, which do not change the meaning of the text to a human…

Machine Learning · Computer Science 2018-02-16 Congzheng Song , Vitaly Shmatikov

The growing use of Artificial Intelligence solutions has led to an explosion in image capture and its application in machine learning models. However, the lack of standardization in image quality generates inconsistencies in the results of…

Computer Vision and Pattern Recognition · Computer Science 2024-10-18 Renato Augusto Tavares

A challenge of the computer vision community is to understand the semantics of an image, in order to allow image reconstruction based on existing high-level features or to better analyze (semi-)labelled datasets. Towards addressing this…

Computer Vision and Pattern Recognition · Computer Science 2020-08-04 Savvas Karatsiolis , Andreas Kamilaris

Since the dawn of the computing era, information has been represented digitally so that it can be processed by electronic computers. Paper books and documents were abundant and widely being published at that time; and hence, there was a…

Computation and Language · Computer Science 2012-04-03 Youssef Bassil , Mohammad Alwani

In this paper, we propose an OCR (optical character recognition)-based localization system called OCRAPOSE II, which is applicable in a number of indoor scenarios including office buildings, parkings, airports, grocery stores, etc. In these…

Computer Vision and Pattern Recognition · Computer Science 2017-04-20 Hamed Sadeghi , Shahrokh Valaee , Shahram Shirani

Diacritic characters can be considered as a unique set of characters providing us with adequate and significant clue in identifying a given language with considerably high accuracy. Diacritics, though associated with phonetics often serve…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Shubham Vatsal , Nikhil Arora , Gopi Ramena , Sukumar Moharana , Dhruval Jain , Naresh Purre , Rachit S Munjal

Image captioning models typically follow an encoder-decoder architecture which uses abstract image feature vectors as input to the encoder. One of the most successful algorithms uses feature vectors extracted from the region proposals…

Computer Vision and Pattern Recognition · Computer Science 2020-01-14 Simao Herdade , Armin Kappeler , Kofi Boakye , Joao Soares

In the field of image captioning, the phenomenon where missing or nonexistent objects are used to explain an image is referred to as object bias (or hallucination). To mitigate this issue, we propose a target-aware prompting strategy. This…

Computer Vision and Pattern Recognition · Computer Science 2025-01-20 Feiyang Huang

Optical Character Recognition (OCR) systems have been widely used in various of application scenarios. Designing an OCR system is still a challenging task. In previous work, we proposed a practical ultra lightweight OCR system (PP-OCR) to…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Yuning Du , Chenxia Li , Ruoyu Guo , Cheng Cui , Weiwei Liu , Jun Zhou , Bin Lu , Yehua Yang , Qiwen Liu , Xiaoguang Hu , Dianhai Yu , Yanjun Ma

The recognition of texts existing in camera-captured images has become an important issue for a great deal of research during the past few decades. This give birth to Scene Character Recognition (SCR) which is an important step in scene…

Computer Vision and Pattern Recognition · Computer Science 2018-07-20 Maroua Tounsi , Ikram Moalla , Frank Lebourgeois , Adel M. Alimi

Object detection and identification is a challenging area of computer vision and a fundamental requirement for autonomous cars. This project aims to jointly perform object detection of a swap-body and to find the type of swap-body by…

Computer Vision and Pattern Recognition · Computer Science 2020-04-20 Ebin Zacharias , Didier Stricker , Martin Teuchler , Kripasindhu Sarkar

The success rates of Optical Character Recognition (OCR) systems for printed Malayalam documents is quite impressive with the state of the art accuracy levels in the range of 85-95% for various. However for real applications, further…

Computation and Language · Computer Science 2012-05-09 Sajilal Divakaran

In recent years, text-image joint pre-training techniques have shown promising results in various tasks. However, in Optical Character Recognition (OCR) tasks, aligning text instances with their corresponding text regions in images poses a…

Computer Vision and Pattern Recognition · Computer Science 2024-04-18 Chen Duan , Pei Fu , Shan Guo , Qianyi Jiang , Xiaoming Wei

Imagery texts are usually organized as a hierarchy of several visual elements, i.e. characters, words, text lines and text blocks. Among these elements, character is the most basic one for various languages such as Western, Chinese,…

Computer Vision and Pattern Recognition · Computer Science 2017-08-23 Han Hu , Chengquan Zhang , Yuxuan Luo , Yuzhuo Wang , Junyu Han , Errui Ding

Recognition of document images have important applications in restoring old and classical texts. The problem involves quality improvement before passing it to a properly trained OCR to get accurate recognition of the text. The image…

Computer Vision and Pattern Recognition · Computer Science 2017-02-01 Ram Krishna Pandey , A G Ramakrishnan

Recognizing text from natural images is a hot research topic in computer vision due to its various applications. Despite the enduring research of several decades on optical character recognition (OCR), recognizing texts from natural images…

Computer Vision and Pattern Recognition · Computer Science 2018-03-23 Zhanzhan Cheng , Yangliu Xu , Fan Bai , Yi Niu , Shiliang Pu , Shuigeng Zhou