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Advances in Visually Rich Document Understanding (VrDU) have enabled information extraction and question answering over documents with complex layouts. Two tropes of architectures have emerged -- transformer-based models inspired by LLMs,…

Computation and Language · Computer Science 2024-01-08 Dongsheng Wang , Zhiqiang Ma , Armineh Nourbakhsh , Kang Gu , Sameena Shah

This paper describes two approaches for content-based image retrieval and pattern spotting in document images using deep learning. The first approach uses a pre-trained CNN model to cope with the lack of training data, which is fine-tuned…

Computer Vision and Pattern Recognition · Computer Science 2019-07-25 Kelly Lais Wiggers , Alceu de Souza Britto Junior , Alessandro Lameiras Koerich , Laurent Heutte , Luiz Eduardo Soares de Oliveira

Document layout comprises both structural and visual (eg. font-sizes) information that is vital but often ignored by machine learning models. The few existing models which do use layout information only consider textual contents, and…

Computation and Language · Computer Science 2021-04-20 Te-Lin Wu , Cheng Li , Mingyang Zhang , Tao Chen , Spurthi Amba Hombaiah , Michael Bendersky

Important information that relates to a specific topic in a document is often organized in tabular format to assist readers with information retrieval and comparison, which may be difficult to provide in natural language. However, tabular…

Computer Vision and Pattern Recognition · Computer Science 2020-03-05 Xu Zhong , Elaheh ShafieiBavani , Antonio Jimeno Yepes

Recent advancements in the area of Computer Vision with state-of-art Neural Networks has given a boost to Optical Character Recognition (OCR) accuracies. However, extracting characters/text alone is often insufficient for relevant…

Computer Vision and Pattern Recognition · Computer Science 2018-12-17 Vishwanath D , Rohit Rahul , Gunjan Sehgal , Swati , Arindam Chowdhury , Monika Sharma , Lovekesh Vig , Gautam Shroff , Ashwin Srinivasan

This paper considers arbitrary document detection performed on a mobile device. The classical contour-based approach often fails in cases featuring occlusion, complex background, or blur. The region-based approach, which relies on the…

Computer Vision and Pattern Recognition · Computer Science 2021-07-02 Daniil V. Tropin , Sergey A. Ilyuhin , Dmitry P. Nikolaev , Vladimir V. Arlazarov

Documents often contain complex physical structures, which make the Document Layout Analysis (DLA) task challenging. As a pre-processing step for content extraction, DLA has the potential to capture rich information in historical or…

Information Retrieval · Computer Science 2021-08-31 Shoubin Li , Xuyan Ma , Shuaiqun Pan , Jun Hu , Lin Shi , Qing Wang

Document layout analysis is crucial for understanding document structures. On this task, vision and semantics of documents, and relations between layout components contribute to the understanding process. Though many works have been…

Computer Vision and Pattern Recognition · Computer Science 2021-05-14 Peng Zhang , Can Li , Liang Qiao , Zhanzhan Cheng , Shiliang Pu , Yi Niu , Fei Wu

Pattern spotting consists of searching in a collection of historical document images for occurrences of a graphical object using an image query. Contrary to object detection, no prior information nor predefined class is given about the…

Computer Vision and Pattern Recognition · Computer Science 2019-06-21 Ignacio Úbeda , Jose M. Saavedra , Stéphane Nicolas , Caroline Petitjean , Laurent Heutte

Document structure analysis, aka document layout analysis, is crucial for understanding both the physical layout and logical structure of documents, serving information retrieval, document summarization, knowledge extraction, etc.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Jiawei Wang , Kai Hu , Qiang Huo

Text alignment finds application in tasks such as citation recommendation and plagiarism detection. Existing alignment methods operate at a single, predefined level and cannot learn to align texts at, for example, sentence and document…

Computation and Language · Computer Science 2020-10-06 Xuhui Zhou , Nikolaos Pappas , Noah A. Smith

A correct localisation of tables in a document is instrumental for determining their structure and extracting their contents; therefore, table detection is a key step in table understanding. Nowadays, the most successful methods for table…

Computer Vision and Pattern Recognition · Computer Science 2019-12-13 Ángela Casado-García , César Domínguez , Jónathan Heras , Eloy Mata , Vico Pascual

Pre-training techniques have been verified successfully in a variety of NLP tasks in recent years. Despite the widespread use of pre-training models for NLP applications, they almost exclusively focus on text-level manipulation, while…

Computation and Language · Computer Science 2020-06-17 Yiheng Xu , Minghao Li , Lei Cui , Shaohan Huang , Furu Wei , Ming Zhou

Pool of knowledge available to the mankind depends on the source of learning resources, which can vary from ancient printed documents to present electronic material. The rapid conversion of material available in traditional libraries to…

Computer Vision and Pattern Recognition · Computer Science 2014-12-25 Akmal Jahan Mac , Roshan G Ragel

Object recognition and detection are well-studied problems with a developed set of almost standard solutions. Identity documents recognition, classification, detection, and localization are the tasks required in a number of applications,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Mykola Kozlenko , Volodymyr Sendetskyi , Oleksiy Simkiv , Nazar Savchenko , Andy Bosyi

We present a model for predicting visual attention during the free viewing of graphic design documents. While existing works on this topic have aimed at predicting static saliency of graphic designs, our work is the first attempt to predict…

Computer Vision and Pattern Recognition · Computer Science 2024-07-03 Souradeep Chakraborty , Zijun Wei , Conor Kelton , Seoyoung Ahn , Aruna Balasubramanian , Gregory J. Zelinsky , Dimitris Samaras

Tables organize valuable content in a concise and compact representation. This content is extremely valuable for systems such as search engines, Knowledge Graph's, etc, since they enhance their predictive capabilities. Unfortunately, tables…

Computer Vision and Pattern Recognition · Computer Science 2022-03-14 Ahmed Nassar , Nikolaos Livathinos , Maksym Lysak , Peter Staar

Document chunking is a critical task in natural language processing (NLP) that involves dividing a document into meaningful segments. Traditional methods often rely solely on semantic analysis, ignoring the spatial layout of elements, which…

Computation and Language · Computer Science 2025-01-13 Prashant Verma

Automatically recognizing the layout of handwritten documents is an important step towards useful extraction of information from those documents. The most common application is to feed downstream applications such as automatic text…

Computer Vision and Pattern Recognition · Computer Science 2021-06-23 Lorenzo Quirós , Enrique Vidal

Document Layout analysis (DLA), is the process by which a page is parsed into meaningful elements, often using machine learning models. Typically, the quality of a model is judged using general object detection metrics such as IoU, F1 or…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Jonathan Bourne , Mwiza Simbeye , Ishtar Govia