{"id":"https://openalex.org/W1915225006","doi":"https://doi.org/10.1109/isspit.2014.7300613","title":"Nonorthogonal DCT block convergence for JPEG-75 forensics","display_name":"Nonorthogonal DCT block convergence for JPEG-75 forensics","publication_year":2014,"publication_date":"2014-12-01","ids":{"openalex":"https://openalex.org/W1915225006","doi":"https://doi.org/10.1109/isspit.2014.7300613","mag":"1915225006"},"language":"en","primary_location":{"id":"doi:10.1109/isspit.2014.7300613","is_oa":false,"landing_page_url":"https://doi.org/10.1109/isspit.2014.7300613","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 IEEE International Symposium on Signal Processing and Information Technology (ISSPIT)","raw_type":"proceedings-article"},"type":"article","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/A5105940139","display_name":"Gamal Fahmy","orcid":"https://orcid.org/0000-0002-2902-5661"},"institutions":[{"id":"https://openalex.org/I91041137","display_name":"Assiut University","ror":"https://ror.org/01jaj8n65","country_code":"EG","type":"education","lineage":["https://openalex.org/I91041137"]}],"countries":["EG"],"is_corresponding":true,"raw_author_name":"Gamal Fahmy","raw_affiliation_strings":["Electrical Engineering Dept., Assiut University, Egypt","Electrical Engineering Department, Assiut University, Egypt"],"affiliations":[{"raw_affiliation_string":"Electrical Engineering Dept., Assiut University, Egypt","institution_ids":["https://openalex.org/I91041137"]},{"raw_affiliation_string":"Electrical Engineering Department, Assiut University, Egypt","institution_ids":["https://openalex.org/I91041137"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5105940139"],"corresponding_institution_ids":["https://openalex.org/I91041137"],"apc_list":null,"apc_paid":null,"fwci":0.4878,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.66493393,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"12","issue":null,"first_page":"000349","last_page":"000353"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12357","display_name":"Digital Media Forensic Detection","score":1.0,"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/T12357","display_name":"Digital Media Forensic Detection","score":1.0,"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/T10388","display_name":"Advanced Steganography and Watermarking Techniques","score":0.9936000108718872,"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/T12859","display_name":"Cell Image Analysis Techniques","score":0.9793000221252441,"subfield":{"id":"https://openalex.org/subfields/1304","display_name":"Biophysics"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/discrete-cosine-transform","display_name":"Discrete cosine transform","score":0.7918534278869629},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7422142624855042},{"id":"https://openalex.org/keywords/jpeg","display_name":"JPEG","score":0.732907235622406},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.5944930911064148},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5778699517250061},{"id":"https://openalex.org/keywords/transform-coding","display_name":"Transform coding","score":0.5387960076332092},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.5141746997833252},{"id":"https://openalex.org/keywords/convergence","display_name":"Convergence (economics)","score":0.48948752880096436},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.4766403138637543},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.17904192209243774}],"concepts":[{"id":"https://openalex.org/C2221639","wikidata":"https://www.wikidata.org/wiki/Q2877","display_name":"Discrete cosine transform","level":3,"score":0.7918534278869629},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7422142624855042},{"id":"https://openalex.org/C198751489","wikidata":"https://www.wikidata.org/wiki/Q2195","display_name":"JPEG","level":3,"score":0.732907235622406},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.5944930911064148},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5778699517250061},{"id":"https://openalex.org/C169805256","wikidata":"https://www.wikidata.org/wiki/Q1361381","display_name":"Transform coding","level":4,"score":0.5387960076332092},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.5141746997833252},{"id":"https://openalex.org/C2777303404","wikidata":"https://www.wikidata.org/wiki/Q759757","display_name":"Convergence (economics)","level":2,"score":0.48948752880096436},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.4766403138637543},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.17904192209243774},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C50522688","wikidata":"https://www.wikidata.org/wiki/Q189833","display_name":"Economic growth","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/isspit.2014.7300613","is_oa":false,"landing_page_url":"https://doi.org/10.1109/isspit.2014.7300613","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 IEEE International Symposium on Signal Processing and Information Technology (ISSPIT)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","id":"https://metadata.un.org/sdg/16","score":0.6700000166893005}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W120119343","https://openalex.org/W228380312","https://openalex.org/W2030623417","https://openalex.org/W2034281955","https://openalex.org/W2081060147","https://openalex.org/W2089740826","https://openalex.org/W2099711786","https://openalex.org/W2104662513","https://openalex.org/W2118779391","https://openalex.org/W2123965969","https://openalex.org/W2130225759","https://openalex.org/W2158996282","https://openalex.org/W2217800650","https://openalex.org/W6604906609","https://openalex.org/W6608862822","https://openalex.org/W6673391023","https://openalex.org/W6688756284"],"related_works":["https://openalex.org/W1597187555","https://openalex.org/W2614249221","https://openalex.org/W2997133669","https://openalex.org/W2108294500","https://openalex.org/W2158017498","https://openalex.org/W2094583657","https://openalex.org/W1594300462","https://openalex.org/W2158009109","https://openalex.org/W1606460848","https://openalex.org/W1830945637"],"abstract_inverted_index":{"Many":[0],"forensic":[1],"techniques":[2,25],"recently":[3],"tried":[4],"to":[5,37,83],"detect":[6,38,84],"the":[7,47,76,88,111],"tampering":[8],"and":[9,127],"manipulation":[10],"of":[11,46,68,78,90,110,123],"JPEG":[12],"compressed":[13,48,53],"images":[14,82],"that":[15,27,44,50,97],"became":[16],"a":[17,28],"critical":[18],"problem":[19],"in":[20,101,105],"different":[21,55,108,124],"imaging":[22],"applications.":[23],"Some":[24],"indicated":[26,43],"knowledge":[29],"able":[30],"attacker":[31],"can":[32,58],"make":[33],"it":[34],"very":[35],"hard":[36],"image":[39,49,112,125],"tampering,":[40],"while":[41],"others":[42],"portions":[45],"has":[51],"been":[52,114],"at":[54],"compression":[56],"parameters":[57],"be":[59],"detected,":[60],"if":[61,107],"they":[62],"are":[63],"recompressed":[64],"after":[65,131],"changing":[66],"some":[67],"these":[69],"parameters.":[70],"In":[71],"this":[72],"project,":[73],"we":[74],"pursue":[75],"idea":[77],"analyzing":[79],"forensically":[80],"suspect-able":[81],"forgery.":[85],"We":[86],"study":[87],"effect":[89],"adopting":[91],"Nonorthogonal":[92],"Discrete":[93],"Cosine":[94],"Transform":[95],"(NDCT)":[96],"is":[98,117],"highly":[99],"utilized":[100],"efficient":[102],"media":[103],"implementations,":[104],"detecting":[106,128],"parts":[109,126],"have":[113],"modified.":[115],"This":[116],"performed":[118],"by":[119],"measuring":[120],"block":[121],"convergence":[122],"its":[129],"stability":[130],"recompressions.":[132]},"counts_by_year":[{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}