HA, Hien Thi and Aleš HORÁK. Information Extraction from Scanned Invoice Images using Text Analysis and Layout Features. Signal Processing: Image Communication. Elsevier, 2022, vol. 102, No 1, p. 1-11. ISSN 0923-5965. Available from: https://dx.doi.org/10.1016/j.image.2021.116601.
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Basic information
Original name Information Extraction from Scanned Invoice Images using Text Analysis and Layout Features
Authors HA, Hien Thi (704 Viet Nam, belonging to the institution) and Aleš HORÁK (203 Czech Republic, belonging to the institution).
Edition Signal Processing: Image Communication, Elsevier, 2022, 0923-5965.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10201 Computer sciences, information science, bioinformatics
Country of publisher Netherlands
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 3.500
RIV identification code RIV/00216224:14330/22:00125095
Organization unit Faculty of Informatics
Doi http://dx.doi.org/10.1016/j.image.2021.116601
UT WoS 000788052500011
Keywords in English OCR; Information extraction; Scanned documents; Document metadata; Invoice metadata extraction; Metadata indexing
Changed by Changed by: RNDr. Pavel Šmerk, Ph.D., učo 3880. Changed: 28/3/2023 09:56.
Abstract
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 the OCRMiner system for information extraction from scanned document images which is based on text analysis techniques in combination with layout features to extract indexing metadata of (semi-)structured documents. The system is designed to process the document in a similar way a human reader uses, i.e. to employ different layout and text attributes in a coordinated decision. The system consists of a set of interconnected modules that start with (possibly erroneous) character-based output from a standard OCR system and allow to apply different techniques and to expand the extracted knowledge at each step. Using an open source OCR, the system is able to recover the invoice data in 90% for English and in 88% for the Czech set.
Links
LM2018101, research and development projectName: Digitální výzkumná infrastruktura pro jazykové technologie, umění a humanitní vědy (Acronym: LINDAT/CLARIAH-CZ)
Investor: Ministry of Education, Youth and Sports of the CR
MUNI/A/1195/2021, interní kód MUName: Aplikovaný výzkum v oblastech vyhledávání, analýz a vizualizací rozsáhlých dat, zpracování přirozeného jazyka a aplikované umělé inteligence
Investor: Masaryk University
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