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Related papers: An End-to-End Khmer Optical Character Recognition …

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Optical Character Recognition (OCR) technology finds applications in digitizing books and unstructured documents, along with applications in other domains such as mobility statistics, law enforcement, traffic, security systems, etc. The…

Computer Vision and Pattern Recognition · Computer Science 2023-07-11 Aishik Rakshit , Samyak Mehta , Anirban Dasgupta

Despite the recent success of text detection and recognition methods, existing evaluation metrics fail to provide a fair and reliable comparison among those methods. In addition, there exists no end-to-end evaluation metric that takes…

Computer Vision and Pattern Recognition · Computer Science 2020-06-12 Youngmin Baek , Daehyun Nam , Sungrae Park , Junyeop Lee , Seung Shin , Jeonghun Baek , Chae Young Lee , Hwalsuk Lee

Recently, scene text recognition (STR) models have shown significant performance improvements. However, existing models still encounter difficulties in recognizing challenging texts that involve factors such as severely distorted and…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Bangbang Zhou , Yadong Qu , Zixiao Wang , Zicheng Li , Boqiang Zhang , Hongtao Xie

In spite of advances in object recognition technology, Handwritten Bangla Character Recognition (HBCR) remains largely unsolved due to the presence of many ambiguous handwritten characters and excessively cursive Bangla handwritings. Even…

Computer Vision and Pattern Recognition · Computer Science 2018-02-13 Md Zahangir Alom , Peheding Sidike , Mahmudul Hasan , Tark M. Taha , Vijayan K. Asari

A sequence-to-sequence model is a neural network module for mapping two sequences of different lengths. The sequence-to-sequence model has three core modules: encoder, decoder, and attention. Attention is the bridge that connects the…

Computation and Language · Computer Science 2018-07-24 Andros Tjandra , Sakriani Sakti , Satoshi Nakamura

This work introduces {\it PrahokBART}, a compact pre-trained sequence-to-sequence model trained from scratch for Khmer using carefully curated Khmer and English corpora. We focus on improving the pre-training corpus quality and addressing…

Computation and Language · Computer Science 2026-01-09 Hour Kaing , Raj Dabre , Haiyue Song , Van-Hien Tran , Hideki Tanaka , Masao Utiyama

Recurrent Neural Networks (RNNs) with attention mechanisms have obtained state-of-the-art results for many sequence processing tasks. Most of these models use a simple form of encoder with attention that looks over the entire sequence and…

We propose a novel end-to-end document understanding model called SeRum (SElective Region Understanding Model) for extracting meaningful information from document images, including document analysis, retrieval, and office automation. Unlike…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Haoyu Cao , Changcun Bao , Chaohu Liu , Huang Chen , Kun Yin , Hao Liu , Yinsong Liu , Deqiang Jiang , Xing Sun

In this paper, we introduce a novel technique to recover the pen trajectory of offline characters which is a crucial step for handwritten character recognition. Generally, online acquisition approach has more advantage than its offline…

Computer Vision and Pattern Recognition · Computer Science 2018-06-05 Ayan Kumar Bhunia , Abir Bhowmick , Ankan Kumar Bhunia , Aishik Konwer , Prithaj Banerjee , Partha Pratim Roy , Umapada Pal

In this work, we perform an empirical comparison among the CTC, RNN-Transducer, and attention-based Seq2Seq models for end-to-end speech recognition. We show that, without any language model, Seq2Seq and RNN-Transducer models both…

Computation and Language · Computer Science 2017-07-25 Eric Battenberg , Jitong Chen , Rewon Child , Adam Coates , Yashesh Gaur , Yi Li , Hairong Liu , Sanjeev Satheesh , David Seetapun , Anuroop Sriram , Zhenyao Zhu

In this work, we jointly address the problem of text detection and recognition in natural scene images based on convolutional recurrent neural networks. We propose a unified network that simultaneously localizes and recognizes text with a…

Computer Vision and Pattern Recognition · Computer Science 2017-07-14 Hui Li , Peng Wang , Chunhua Shen

We address an important problem in sequence-to-sequence (Seq2Seq) learning referred to as copying, in which certain segments in the input sequence are selectively replicated in the output sequence. A similar phenomenon is observable in…

Computation and Language · Computer Science 2016-06-09 Jiatao Gu , Zhengdong Lu , Hang Li , Victor O. K. Li

In this paper, we present an Optical Character Recognition (OCR) system specifically designed for the accurate recognition and digitization of Greek polytonic texts. By leveraging the combined strengths of convolutional layers for feature…

Computer Vision and Pattern Recognition · Computer Science 2025-06-27 Perifanos Konstantinos , Goutsos Dionisis

Attention-based methods and Connectionist Temporal Classification (CTC) network have been promising research directions for end-to-end (E2E) Automatic Speech Recognition (ASR). The joint CTC/Attention model has achieved great success by…

Audio and Speech Processing · Electrical Eng. & Systems 2019-10-22 Ruizhi Li , Xiaofei Wang , Sri Harish Mallidi , Shinji Watanabe , Takaaki Hori , Hynek Hermansky

Just like its great success in solving many computer vision problems, the convolutional neural networks (CNN) provided new end-to-end approach to handwritten Chinese character recognition (HCCR) with very promising results in recent years.…

Computer Vision and Pattern Recognition · Computer Science 2015-05-20 Zhuoyao Zhong , Lianwen Jin , Zecheng Xie

This paper presents a method of sequence-to-sequence (seq2seq) voice conversion using non-parallel training data. In this method, disentangled linguistic and speaker representations are extracted from acoustic features, and voice conversion…

Audio and Speech Processing · Electrical Eng. & Systems 2020-01-14 Jing-Xuan Zhang , Zhen-Hua Ling , Li-Rong Dai

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

Detection Transformers (DETR) are renowned object detection pipelines, however computationally efficient multiscale detection using DETR is still challenging. In this paper, we propose a Cross-Resolution Encoding-Decoding (CRED) mechanism…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Ashish Kumar , Jaesik Park

We demonstrate that an attention-based encoder-decoder model can be used for sentence-level grammatical error identification for the Automated Evaluation of Scientific Writing (AESW) Shared Task 2016. The attention-based encoder-decoder…

Computation and Language · Computer Science 2016-04-19 Allen Schmaltz , Yoon Kim , Alexander M. Rush , Stuart M. Shieber

While recent advancements in Image Super-Resolution (SR) using diffusion models have shown promise in improving overall image quality, their application to scene text images has revealed limitations. These models often struggle with…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Keren Ye , Ignacio Garcia Dorado , Michalis Raptis , Mauricio Delbracio , Irene Zhu , Peyman Milanfar , Hossein Talebi