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Hyperspectral target detection is good at finding dim and small objects based on spectral characteristics. However, existing representation-based methods are hindered by the problem of the unknown background dictionary and insufficient…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Dunbin Shen , Xiaorui Ma , Wenfeng Kong , Jiacheng Tian , Hongyu Wang

Automatic Speech Recognition (ASR) systems frequently use a search-based decoding strategy aiming to find the best attainable transcript by considering multiple candidates. One prominent speech recognition decoding heuristic is beam search,…

Computation and Language · Computer Science 2022-12-29 Tomer Wullach , Shlomo E. Chazan

In this paper, we create benchmarks and assess the effectiveness of error correction methods for Japanese vouchers in OCR (Optical Character Recognition) systems. It is essential for automation processing to correctly recognize scanned…

Computation and Language · Computer Science 2024-10-01 Masato Fujitake

This paper proposes a combination of a convolutional and a LSTM network to improve the accuracy of OCR on early printed books. While the standard model of line based OCR uses a single LSTM layer, we utilize a CNN- and Pooling-Layer…

Computer Vision and Pattern Recognition · Computer Science 2018-02-28 Christoph Wick , Christian Reul , Frank Puppe

There is a growing trend in studying deep hashing methods for content-based image retrieval (CBIR), where hash functions and binary codes are learnt using deep convolutional neural networks and then the binary codes can be used to do…

Computer Vision and Pattern Recognition · Computer Science 2017-11-17 Deng Cai , Xiuye Gu , Chaoqi Wang

Despite their cultural and historical significance, Black digital archives continue to be a structurally underrepresented area in AI research and infrastructure. This is especially evident in efforts to digitize historical Black newspapers,…

Digital Libraries · Computer Science 2025-09-17 Fitsum Sileshi Beyene , Christopher L. Dancy

In this paper, we present a series of complementary approaches to improve the recognition of underrepresented named entities (NE) in hybrid ASR systems without compromising overall word error rate performance. The underrepresented words…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-19 Tingzhi Mao , Yerbolat Khassanov , Van Tung Pham , Haihua Xu , Hao Huang , Eng Siong Chng

The main objective of this paper is to solve the optimization problem that is associated with the classification of DNA samples in PCR plates for Sanger sequencing. To achieve this goal, we design an integer linear programming model. Given…

Data Structures and Algorithms · Computer Science 2024-01-23 Luisa Carpente , Ana Cerdeira-Pena , Silvia Lorenzo-Freire , Ángeles S. Places

Indonesia is one of the most diverse countries linguistically. However, despite this linguistic diversity, Indonesian languages remain underrepresented in Natural Language Processing (NLP) research and technologies. In the past two years,…

This paper presents a novel iterative deep learning framework and apply it for document enhancement and binarization. Unlike the traditional methods which predict the binary label of each pixel on the input image, we train the neural…

Computer Vision and Pattern Recognition · Computer Science 2019-01-21 Sheng He , Lambert Schomaker

Despite significant advances in document understanding, determining the correct orientation of scanned or photographed documents remains a critical pre-processing step in the real world settings. Accurate rotation correction is essential…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Suranjan Goswami , Abhinav Ravi , Raja Kolla , Ali Faraz , Shaharukh Khan , Akash , Chandra Khatri , Shubham Agarwal

Recent progress in deep learning has led to the development of Optical Character Recognition (OCR) systems which perform remarkably well. Most research has been around recurrent networks as well as complex gated layers which make the…

Computer Vision and Pattern Recognition · Computer Science 2022-06-01 Kartik Chaudhary , Raghav Bali

Lexical ambiguity, a challenging phenomenon in all natural languages, is particularly prevalent for languages with diacritics that tend to be omitted in writing, such as Arabic. Omitting diacritics leads to an increase in the number of…

Computation and Language · Computer Science 2019-12-11 Sawsan Alqahtani , Hanan Aldarmaki , Mona Diab

Handwritten Digit Recognition (HDR) is one of the most challenging tasks in the domain of Optical Character Recognition (OCR). Irrespective of language, there are some inherent challenges of HDR, which mostly arise due to the variations in…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 A. B. M. Ashikur Rahman , Md. Bakhtiar Hasan , Sabbir Ahmed , Tasnim Ahmed , Md. Hamjajul Ashmafee , Mohammad Ridwan Kabir , Md. Hasanul Kabir

Precise homography estimation between multiple images is a pre-requisite for many computer vision applications. One application that is particularly relevant in today's digital era is the alignment of scanned or camera-captured document…

Computer Vision and Pattern Recognition · Computer Science 2019-11-15 Kushagra Mahajan , Monika Sharma , Lovekesh Vig

For digitizing or indexing physical documents, Optical Character Recognition (OCR), the process of extracting textual information from scanned documents, is a vital technology. When a document is visually damaged or contains non-textual…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Oshri Naparstek , Ophir Azulai , Daniel Rotman , Yevgeny Burshtein , Peter Staar , Udi Barzelay

We have benchmarked the maximum obtainable recognition accuracy on various word image datasets using manual segmentation and a currently available commercial OCR. We have developed a Matlab program, with graphical user interface, for…

Computer Vision and Pattern Recognition · Computer Science 2012-08-31 Deepak Kumar , M N Anil Prasad , A G Ramakrishnan

The automatic recognition of tabular data in document images presents a significant challenge due to the diverse range of table styles and complex structures. Tables offer valuable content representation, enhancing the predictive…

Computer Vision and Pattern Recognition · Computer Science 2024-04-22 Avinash Anand , Raj Jaiswal , Pijush Bhuyan , Mohit Gupta , Siddhesh Bangar , Md. Modassir Imam , Rajiv Ratn Shah , Shin'ichi Satoh

Arabic Optical Character Recognition (OCR) and Handwriting Recognition (HWR) pose unique challenges due to the cursive and context-sensitive nature of the Arabic script. This study introduces Qalam, a novel foundation model designed for…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Gagan Bhatia , El Moatez Billah Nagoudi , Fakhraddin Alwajih , Muhammad Abdul-Mageed

In spite of the advances in pattern recognition technology, Handwritten Bangla Character Recognition (HBCR) (such as alpha-numeric and special characters) remains largely unsolved due to the presence of many perplexing characters and…

Computer Vision and Pattern Recognition · Computer Science 2017-05-09 Md Zahangir Alom , Paheding Sidike , Tarek M. Taha , Vijayan K. Asari