{"id":"https://openalex.org/W3201530880","doi":"https://doi.org/10.1007/978-3-030-87802-3_21","title":"OCR Improvements for Images of Multi-page Historical Documents","display_name":"OCR Improvements for Images of Multi-page Historical Documents","publication_year":2021,"publication_date":"2021-01-01","ids":{"openalex":"https://openalex.org/W3201530880","doi":"https://doi.org/10.1007/978-3-030-87802-3_21","mag":"3201530880"},"language":"en","primary_location":{"id":"doi:10.1007/978-3-030-87802-3_21","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-030-87802-3_21","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"},"type":"book-chapter","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5002824719","display_name":"Ivan Gruber","orcid":"https://orcid.org/0000-0003-2333-433X"},"institutions":[{"id":"https://openalex.org/I92715842","display_name":"University of West Bohemia in Pilsen","ror":"https://ror.org/040t43x18","country_code":"CZ","type":"education","lineage":["https://openalex.org/I92715842"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Ivan Gruber","raw_affiliation_strings":["Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","Faculty of Applied Sciences, New Technologies for the Information Society, University of West Bohemia, Plze\u0148, Czech Republic"],"raw_orcid":"https://orcid.org/0000-0003-2333-433X","affiliations":[{"raw_affiliation_string":"Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]},{"raw_affiliation_string":"Faculty of Applied Sciences, New Technologies for the Information Society, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5071580125","display_name":"Marek Hr\u00faz","orcid":"https://orcid.org/0000-0002-7851-9879"},"institutions":[{"id":"https://openalex.org/I92715842","display_name":"University of West Bohemia in Pilsen","ror":"https://ror.org/040t43x18","country_code":"CZ","type":"education","lineage":["https://openalex.org/I92715842"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Marek Hr\u00faz","raw_affiliation_strings":["Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","Faculty of Applied Sciences, New Technologies for the Information Society, University of West Bohemia, Plze\u0148, Czech Republic"],"raw_orcid":"https://orcid.org/0000-0002-7851-9879","affiliations":[{"raw_affiliation_string":"Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]},{"raw_affiliation_string":"Faculty of Applied Sciences, New Technologies for the Information Society, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047784245","display_name":"Pavel Ircing","orcid":"https://orcid.org/0000-0001-6967-1687"},"institutions":[{"id":"https://openalex.org/I92715842","display_name":"University of West Bohemia in Pilsen","ror":"https://ror.org/040t43x18","country_code":"CZ","type":"education","lineage":["https://openalex.org/I92715842"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Pavel Ircing","raw_affiliation_strings":["Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","Faculty of Applied Sciences, New Technologies for the Information Society, University of West Bohemia, Plze\u0148, Czech Republic"],"raw_orcid":"https://orcid.org/0000-0001-6967-1687","affiliations":[{"raw_affiliation_string":"Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]},{"raw_affiliation_string":"Faculty of Applied Sciences, New Technologies for the Information Society, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060996111","display_name":"Petr Neduchal","orcid":"https://orcid.org/0000-0001-5788-604X"},"institutions":[{"id":"https://openalex.org/I92715842","display_name":"University of West Bohemia in Pilsen","ror":"https://ror.org/040t43x18","country_code":"CZ","type":"education","lineage":["https://openalex.org/I92715842"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Petr Neduchal","raw_affiliation_strings":["Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","Faculty of Applied Sciences, New Technologies for the Information Society, University of West Bohemia, Plze\u0148, Czech Republic"],"raw_orcid":"https://orcid.org/0000-0001-5788-604X","affiliations":[{"raw_affiliation_string":"Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]},{"raw_affiliation_string":"Faculty of Applied Sciences, New Technologies for the Information Society, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5051447722","display_name":"Tom\u00e1\u0161 Z\u00edtka","orcid":"https://orcid.org/0000-0002-6798-1494"},"institutions":[{"id":"https://openalex.org/I92715842","display_name":"University of West Bohemia in Pilsen","ror":"https://ror.org/040t43x18","country_code":"CZ","type":"education","lineage":["https://openalex.org/I92715842"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Tom\u00e1\u0161 Z\u00edtka","raw_affiliation_strings":["Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic"],"raw_orcid":"https://orcid.org/0000-0002-6798-1494","affiliations":[{"raw_affiliation_string":"Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5063272921","display_name":"Miroslav Hlav\u00e1\u010d","orcid":"https://orcid.org/0000-0003-1172-930X"},"institutions":[{"id":"https://openalex.org/I92715842","display_name":"University of West Bohemia in Pilsen","ror":"https://ror.org/040t43x18","country_code":"CZ","type":"education","lineage":["https://openalex.org/I92715842"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Miroslav Hlav\u00e1\u010d","raw_affiliation_strings":["Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","Faculty of Applied Sciences, New Technologies for the Information Society, University of West Bohemia, Plze\u0148, Czech Republic"],"raw_orcid":"https://orcid.org/0000-0003-1172-930X","affiliations":[{"raw_affiliation_string":"Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]},{"raw_affiliation_string":"Faculty of Applied Sciences, New Technologies for the Information Society, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020627791","display_name":"Zbyn\u011bk Zaj\u00edc","orcid":"https://orcid.org/0000-0002-4153-6560"},"institutions":[{"id":"https://openalex.org/I92715842","display_name":"University of West Bohemia in Pilsen","ror":"https://ror.org/040t43x18","country_code":"CZ","type":"education","lineage":["https://openalex.org/I92715842"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Zbyn\u011bk Zaj\u00edc","raw_affiliation_strings":["Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","Faculty of Applied Sciences, New Technologies for the Information Society, University of West Bohemia, Plze\u0148, Czech Republic"],"raw_orcid":"https://orcid.org/0000-0002-4153-6560","affiliations":[{"raw_affiliation_string":"Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]},{"raw_affiliation_string":"Faculty of Applied Sciences, New Technologies for the Information Society, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5072542443","display_name":"J\u00e1n \u0160vec","orcid":"https://orcid.org/0000-0001-8362-5927"},"institutions":[{"id":"https://openalex.org/I92715842","display_name":"University of West Bohemia in Pilsen","ror":"https://ror.org/040t43x18","country_code":"CZ","type":"education","lineage":["https://openalex.org/I92715842"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Jan \u0160vec","raw_affiliation_strings":["Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","Faculty of Applied Sciences, New Technologies for the Information Society, University of West Bohemia, Plze\u0148, Czech Republic"],"raw_orcid":"https://orcid.org/0000-0001-8362-5927","affiliations":[{"raw_affiliation_string":"Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]},{"raw_affiliation_string":"Faculty of Applied Sciences, New Technologies for the Information Society, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5088370661","display_name":"Martin Bul\u00edn","orcid":"https://orcid.org/0000-0003-0276-3143"},"institutions":[{"id":"https://openalex.org/I92715842","display_name":"University of West Bohemia in Pilsen","ror":"https://ror.org/040t43x18","country_code":"CZ","type":"education","lineage":["https://openalex.org/I92715842"]}],"countries":["CZ"],"is_corresponding":false,"raw_author_name":"Martin Bul\u00edn","raw_affiliation_strings":["Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","Faculty of Applied Sciences, New Technologies for the Information Society, University of West Bohemia, Plze\u0148, Czech Republic"],"raw_orcid":"https://orcid.org/0000-0003-0276-3143","affiliations":[{"raw_affiliation_string":"Faculty of Applied Sciences, Department of Cybernetics, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]},{"raw_affiliation_string":"Faculty of Applied Sciences, New Technologies for the Information Society, University of West Bohemia, Plze\u0148, Czech Republic","institution_ids":["https://openalex.org/I92715842"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":9,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":1.4046,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.84408845,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"226","last_page":"237"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10601","display_name":"Handwritten Text Recognition Techniques","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10601","display_name":"Handwritten Text Recognition Techniques","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T14339","display_name":"Image Processing and 3D Reconstruction","score":0.9965000152587891,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.9939000010490417,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8920900225639343},{"id":"https://openalex.org/keywords/pipeline","display_name":"Pipeline (software)","score":0.8418911695480347},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5994537472724915},{"id":"https://openalex.org/keywords/orientation","display_name":"Orientation (vector space)","score":0.558127760887146},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.5545319318771362},{"id":"https://openalex.org/keywords/scanner","display_name":"Scanner","score":0.5481361746788025},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.5170841217041016},{"id":"https://openalex.org/keywords/precision-and-recall","display_name":"Precision and recall","score":0.5091099143028259},{"id":"https://openalex.org/keywords/optical-character-recognition","display_name":"Optical character recognition","score":0.4745367765426636},{"id":"https://openalex.org/keywords/word","display_name":"Word (group theory)","score":0.47037333250045776},{"id":"https://openalex.org/keywords/reading","display_name":"Reading (process)","score":0.45075979828834534},{"id":"https://openalex.org/keywords/computer-graphics","display_name":"Computer graphics (images)","score":0.41291365027427673},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.3935489058494568},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.3622870147228241},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.25921356678009033}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8920900225639343},{"id":"https://openalex.org/C43521106","wikidata":"https://www.wikidata.org/wiki/Q2165493","display_name":"Pipeline (software)","level":2,"score":0.8418911695480347},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5994537472724915},{"id":"https://openalex.org/C16345878","wikidata":"https://www.wikidata.org/wiki/Q107472979","display_name":"Orientation (vector space)","level":2,"score":0.558127760887146},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.5545319318771362},{"id":"https://openalex.org/C2779751349","wikidata":"https://www.wikidata.org/wiki/Q1474480","display_name":"Scanner","level":2,"score":0.5481361746788025},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.5170841217041016},{"id":"https://openalex.org/C81669768","wikidata":"https://www.wikidata.org/wiki/Q2359161","display_name":"Precision and recall","level":2,"score":0.5091099143028259},{"id":"https://openalex.org/C546480517","wikidata":"https://www.wikidata.org/wiki/Q167555","display_name":"Optical character recognition","level":3,"score":0.4745367765426636},{"id":"https://openalex.org/C90805587","wikidata":"https://www.wikidata.org/wiki/Q10944557","display_name":"Word (group theory)","level":2,"score":0.47037333250045776},{"id":"https://openalex.org/C554936623","wikidata":"https://www.wikidata.org/wiki/Q199657","display_name":"Reading (process)","level":2,"score":0.45075979828834534},{"id":"https://openalex.org/C121684516","wikidata":"https://www.wikidata.org/wiki/Q7600677","display_name":"Computer graphics (images)","level":1,"score":0.41291365027427673},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.3935489058494568},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.3622870147228241},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.25921356678009033},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/978-3-030-87802-3_21","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-030-87802-3_21","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"},{"id":"pmh:oai:dspace5.zcu.cz:11025/47184","is_oa":false,"landing_page_url":"http://hdl.handle.net/11025/47184","pdf_url":null,"source":{"id":"https://openalex.org/S4306400586","display_name":"Digital Library (University of West Bohemia)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I92715842","host_organization_name":"University of West Bohemia in Pilsen","host_organization_lineage":["https://openalex.org/I92715842"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"konferen\u010dn\u00ed p\u0159\u00edsp\u011bvek"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.7200000286102295,"display_name":"Quality Education","id":"https://metadata.un.org/sdg/4"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W639708223","https://openalex.org/W1959608418","https://openalex.org/W2001642682","https://openalex.org/W2064675550","https://openalex.org/W2164863177","https://openalex.org/W2194775991","https://openalex.org/W2805141225","https://openalex.org/W2964121744","https://openalex.org/W2995934132","https://openalex.org/W3020282502","https://openalex.org/W3028389105","https://openalex.org/W3049072356","https://openalex.org/W3090423411","https://openalex.org/W3090694718","https://openalex.org/W3093938929","https://openalex.org/W3199081815","https://openalex.org/W3200007148","https://openalex.org/W3202466114","https://openalex.org/W3204079904"],"related_works":["https://openalex.org/W4232857084","https://openalex.org/W4245233074","https://openalex.org/W1517555227","https://openalex.org/W2653993779","https://openalex.org/W762151464","https://openalex.org/W2389610024","https://openalex.org/W4239804034","https://openalex.org/W2078499755","https://openalex.org/W4206165639","https://openalex.org/W2050712820"],"abstract_inverted_index":null,"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":3},{"year":2021,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}