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While storing invoice content as metadata to avoid paper document processing may be the future trend, almost all of daily issued invoices are still printed on paper or generated in digital formats such as PDFs. In this paper, we introduce…

Computation and Language · Computer Science 2022-08-09 Hien Thi Ha , Aleš Horák

Land remote sensing analysis is a crucial research in earth science. In this work, we focus on a challenging task of land analysis, i.e., automatic extraction of traffic roads from remote sensing data, which has widespread applications in…

Computer Vision and Pattern Recognition · Computer Science 2022-05-26 Lingbo Liu , Zewei Yang , Guanbin Li , Kuo Wang , Tianshui Chen , Liang Lin

The Direct Segment Anything Model (DirectSAM) excels in class-agnostic contour extraction. In this paper, we explore its use by applying it to optical remote sensing imagery, where semantic contour extraction-such as identifying buildings,…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Shiyu Miao , Delong Chen , Fan Liu , Chuanyi Zhang , Yanhui Gu , Shengjie Guo , Jun Zhou

Existing color-guided depth super-resolution (DSR) approaches require paired RGB-D data as training samples where the RGB image is used as structural guidance to recover the degraded depth map due to their geometrical similarity. However,…

Computer Vision and Pattern Recognition · Computer Science 2021-03-25 Baoli Sun , Xinchen Ye , Baopu Li , Haojie Li , Zhihui Wang , Rui Xu

A mind-map is a diagram that represents the central concept and key ideas in a hierarchical way. Converting plain text into a mind-map will reveal its key semantic structure and be easier to understand. Given a document, the existing…

Computation and Language · Computer Science 2021-09-07 Mengting Hu , Honglei Guo , Shiwan Zhao , Hang Gao , Zhong Su

Table of contents (ToC) extraction aims to extract headings of different levels in documents to better understand the outline of the contents, which can be widely used for document understanding and information retrieval. Existing works…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Pengfei Hu , Zhenrong Zhang , Jianshu Zhang , Jun Du , Jiajia Wu

We present a novel learned keypoint detection method designed to maximize the number of correct matches for the task of non-rigid image correspondence. Our training framework uses true correspondences, obtained by matching annotated image…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Welerson Melo , Guilherme Potje , Felipe Cadar , Renato Martins , Erickson R. Nascimento

Many documents, that we call templatized documents, are programmatically generated by populating fields in a visual template. Effective data extraction from these documents is crucial to supporting downstream analytical tasks. Current data…

Databases · Computer Science 2025-01-14 Yiming Lin , Mawil Hasan , Rohan Kosalge , Alvin Cheung , Aditya G. Parameswaran

Retrieval-augmented generation (RAG) systems have predominantly focused on text-based retrieval, limiting their effectiveness in handling visually-rich documents that encompass text, images, tables, and charts. To bridge this gap, we…

Information Retrieval · Computer Science 2025-05-07 Mingjun Xu , Zehui Wang , Hengxing Cai , Renxin Zhong

Retrieving accurate details from documents is a crucial task, especially when handling a combination of scanned images and native digital formats. This document presents a combined framework for text extraction that merges Optical Character…

Computer Vision and Pattern Recognition · Computer Science 2025-06-16 Rasha Sinha , Rekha B S

Most search engines index the textual content of documents in digital libraries. However, scholarly articles frequently report important findings in figures for visual impact and the contents of these figures are not indexed. These contents…

Computer Vision and Pattern Recognition · Computer Science 2008-09-11 William Brouwer , Saurabh Kataria , Sujatha Das , Prasenjit Mitra , C. L. Giles

The extraction of templates such as ``regard X as Y'' from a set of related phrases requires the identification of their internal structures. This paper presents an unsupervised approach for extracting templates on-the-fly from only tagged…

Computation and Language · Computer Science 2020-01-29 Daiki Hirano , Kumiko Tanaka-Ishii , Andrew Finch

Document-level relation extraction aims to extract relations among entities within a document. Compared with its sentence-level counterpart, Document-level relation extraction requires inference over multiple sentences to extract complex…

Computation and Language · Computer Science 2022-08-05 Liang Zhang , Yidong Cheng

Document layout analysis is a known problem to the documents research community and has been vastly explored yielding a multitude of solutions ranging from text mining, and recognition to graph-based representation, visual feature…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Subhajit Maity , Sanket Biswas , Siladittya Manna , Ayan Banerjee , Josep Lladós , Saumik Bhattacharya , Umapada Pal

This paper presents a neurosymbolic framework for information extraction from documents, evaluated on transactional documents. We introduce a schema-based approach that integrates symbolic validation methods to enable more effective…

Computation and Language · Computer Science 2025-12-11 Arthur Hemmer , Mickaël Coustaty , Nicola Bartolo , Jean-Marc Ogier

Zero-shot referring expression comprehension (REC) aims to locate target objects in images given natural language queries without relying on task-specific training data, demanding strong visual understanding capabilities. Existing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Yike Wu , Necva Bolucu , Stephen Wan , Dadong Wang , Jiahao Xia , Jian Zhang

The rich textual information of large vision-language models (VLMs) combined with the powerful generative prior of pre-trained text-to-image (T2I) diffusion models has achieved impressive performance in single-image super-resolution (SISR).…

Computer Vision and Pattern Recognition · Computer Science 2025-08-25 Haodong He , Yancheng Bai , Rui Lan , Xu Duan , Lei Sun , Xiangxiang Chu , Gui-Song Xia

Keyword extraction is used for summarizing the content of a document and supports efficient document retrieval, and is as such an indispensable part of modern text-based systems. We explore how load centrality, a graph-theoretic measure…

Computation and Language · Computer Science 2019-11-12 Blaž Škrlj , Andraž Repar , Senja Pollak

Video Paragraph Grounding (VPG) aims to precisely locate the most appropriate moments within a video that are relevant to a given textual paragraph query. However, existing methods typically rely on large-scale annotated temporal labels and…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Mengzhao Wang , Huafeng Li , Yafei Zhang , Jinxing Li , Minghong Xie , Dapeng Tao

Understanding the contents of multimodal documents is essential to accurately extract relevant evidence and use it for reasoning. Existing document understanding models tend to generate answers with a single word or phrase directly,…

Information Retrieval · Computer Science 2024-08-15 Jinxu Zhang