{"id":"https://openalex.org/W2538186754","doi":"https://doi.org/10.2312/egs.19991061","title":"Contour Extraction of Watermarks in Old Manuscripts","display_name":"Contour Extraction of Watermarks in Old Manuscripts","publication_year":1999,"publication_date":"1999-01-01","ids":{"openalex":"https://openalex.org/W2538186754","doi":"https://doi.org/10.2312/egs.19991061","mag":"2538186754"},"language":"en","primary_location":{"id":"doi:10.2312/egs.19991061","is_oa":true,"landing_page_url":"https://doi.org/10.2312/egs.19991061","pdf_url":null,"source":{"id":"https://openalex.org/S7407052899","display_name":"Eurographics","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null},"type":"other","indexed_in":["datacite"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://doi.org/10.2312/egs.19991061","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5040150848","display_name":"Emanuel Wenger","orcid":null},"institutions":[{"id":"https://openalex.org/I138211613","display_name":"Austrian Academy of Sciences","ror":"https://ror.org/03anc3s24","country_code":"AT","type":"government","lineage":["https://openalex.org/I138211613"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"Wenger, Emanuel","raw_affiliation_strings":["Austrian Academy of Sciences, Autstria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Austrian Academy of Sciences, Autstria","institution_ids":["https://openalex.org/I138211613"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062176363","display_name":"\u0412. \u041d. \u041a\u0430\u0440\u043d\u0430\u0443\u0445\u043e\u0432","orcid":"https://orcid.org/0000-0001-6132-5202"},"institutions":[{"id":"https://openalex.org/I1313323035","display_name":"Russian Academy of Sciences","ror":"https://ror.org/05qrfxd25","country_code":"RU","type":"government","lineage":["https://openalex.org/I1313323035"]}],"countries":["RU"],"is_corresponding":false,"raw_author_name":"Karnaukhov, Victor N.","raw_affiliation_strings":["Russian Academy of Sciences, Russia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Russian Academy of Sciences, Russia","institution_ids":["https://openalex.org/I1313323035"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5002354687","display_name":"Alois Haidinger","orcid":null},"institutions":[{"id":"https://openalex.org/I138211613","display_name":"Austrian Academy of Sciences","ror":"https://ror.org/03anc3s24","country_code":"AT","type":"government","lineage":["https://openalex.org/I138211613"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"Haidinger, Alois","raw_affiliation_strings":["Austrian Academy of Sciences, Autstria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Austrian Academy of Sciences, Autstria","institution_ids":["https://openalex.org/I138211613"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T14339","display_name":"Image Processing and 3D Reconstruction","score":0.9957000017166138,"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/T14339","display_name":"Image Processing and 3D Reconstruction","score":0.9957000017166138,"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/T11212","display_name":"Cultural Heritage Materials Analysis","score":0.9951000213623047,"subfield":{"id":"https://openalex.org/subfields/1204","display_name":"Archeology"},"field":{"id":"https://openalex.org/fields/12","display_name":"Arts and Humanities"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10601","display_name":"Handwritten Text Recognition Techniques","score":0.9882000088691711,"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":0.6305140852928162},{"id":"https://openalex.org/keywords/extraction","display_name":"Extraction (chemistry)","score":0.49256688356399536},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.4909818470478058},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4898328483104706},{"id":"https://openalex.org/keywords/digital-watermarking","display_name":"Digital watermarking","score":0.410697877407074},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.13518193364143372}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6305140852928162},{"id":"https://openalex.org/C4725764","wikidata":"https://www.wikidata.org/wiki/Q844704","display_name":"Extraction (chemistry)","level":2,"score":0.49256688356399536},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.4909818470478058},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4898328483104706},{"id":"https://openalex.org/C150817343","wikidata":"https://www.wikidata.org/wiki/Q875932","display_name":"Digital watermarking","level":3,"score":0.410697877407074},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.13518193364143372},{"id":"https://openalex.org/C43617362","wikidata":"https://www.wikidata.org/wiki/Q170050","display_name":"Chromatography","level":1,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.2312/egs.19991061","is_oa":true,"landing_page_url":"https://doi.org/10.2312/egs.19991061","pdf_url":null,"source":{"id":"https://openalex.org/S7407052899","display_name":"Eurographics","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":null},{"id":"mag:2538186754","is_oa":false,"landing_page_url":"https://diglib.eg.org:443/handle/10.2312/egs19991061","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":"Eurographics","raw_type":null}],"best_oa_location":{"id":"doi:10.2312/egs.19991061","is_oa":true,"landing_page_url":"https://doi.org/10.2312/egs.19991061","pdf_url":null,"source":{"id":"https://openalex.org/S7407052899","display_name":"Eurographics","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W1566883543","https://openalex.org/W2880325891"],"abstract_inverted_index":{"The":[0,16],"comparison":[1],"of":[2,18,38,55],"watermarks":[3,19],"in":[4,26],"old":[5],"paper":[6,35],"is":[7,22,45],"the":[8,23,36,50],"major":[9],"technique":[10],"for":[11],"dating":[12],"undated":[13],"medieval":[14],"manuscripts.":[15],"extraction":[17],"as":[20],"contours":[21],"crucial":[24],"task":[25],"digitalization":[27],"and":[28,47,53],"building":[29],"a":[30],"watermark":[31],"database.":[32],"In":[33],"this":[34],"method":[37],"object":[39],"delineation":[40],"by":[41],"active":[42],"curves":[43],"(snakes)":[44],"modified":[46],"applied":[48],"to":[49],"contour":[51],"tracing":[52],"skeletonization":[54],"watermarks.":[56]},"counts_by_year":[],"updated_date":"2026-07-15T18:14:33.161393","created_date":"2025-10-10T00:00:00"}
