{"id":"https://openalex.org/W246710947","doi":null,"title":"SPATIAL FILTRATION OF IMAGES ON THE IMAGE-ORTHICON TARGET,","display_name":"SPATIAL FILTRATION OF IMAGES ON THE IMAGE-ORTHICON TARGET,","publication_year":1969,"publication_date":"1969-11-25","ids":{"openalex":"https://openalex.org/W246710947","mag":"246710947"},"language":"en","primary_location":{"id":"pmh:AD0702321","doi":null,"is_oa":false,"landing_page_url":"http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0702321","pdf_url":null,"source":{"id":"https://openalex.org/S4406923043","display_name":"Defense Technical Information Center (DTIC)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"DTIC AND NTIS","raw_type":"Text"},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"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/A5045815720","display_name":"V. L. Lentsman","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Lentsman,V. L.","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5056186809","display_name":"I.I. Tsukkerman","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Tsukkerman,I. I.","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"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/T11992","display_name":"CCD and CMOS Imaging Sensors","score":0.5313000082969666,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11992","display_name":"CCD and CMOS Imaging Sensors","score":0.5313000082969666,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10688","display_name":"Image and Signal Denoising Methods","score":0.09560000151395798,"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/T11105","display_name":"Advanced Image Processing Techniques","score":0.09529999643564224,"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/image-orthicon","display_name":"image orthicon","score":0.8370000123977661},{"id":"https://openalex.org/keywords/spatial-filtering","display_name":"spatial filtering","score":0.8700000047683716},{"id":"https://openalex.org/keywords/spatial-frequency-filtering","display_name":"spatial frequency filtering","score":0.5950000286102295},{"id":"https://openalex.org/keywords/background-noise-reduction","display_name":"background noise suppression","score":0.6970000267028809},{"id":"https://openalex.org/keywords/low-pass-filtering","display_name":"low-pass filtering","score":0.5889999866485596},{"id":"https://openalex.org/keywords/negative-feedback","display_name":"negative feedback","score":0.550000011920929},{"id":"https://openalex.org/keywords/image-readout","display_name":"image readout","score":0.6620000004768372}],"concepts":[{"id":"https://openalex.org/C128489963","wikidata":"https://www.wikidata.org/wiki/Q1187724","display_name":"Filtration (mathematics)","level":2,"score":0.6623092889785767},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.6554116010665894},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.6382319331169128},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.5846600532531738},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5269202589988708},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.524511456489563},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5189290046691895},{"id":"https://openalex.org/C121475858","wikidata":"https://www.wikidata.org/wiki/Q2735911","display_name":"Spatial filter","level":2,"score":0.42559126019477844},{"id":"https://openalex.org/C2780023022","wikidata":"https://www.wikidata.org/wiki/Q1338171","display_name":"Compensation (psychology)","level":2,"score":0.4192540943622589},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.41369760036468506},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.22529557347297668},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"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/C11171543","wikidata":"https://www.wikidata.org/wiki/Q41630","display_name":"Psychoanalysis","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"pmh:AD0702321","doi":null,"is_oa":false,"landing_page_url":"http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0702321","pdf_url":null,"source":{"id":"https://openalex.org/S4406923043","display_name":"Defense Technical Information Center (DTIC)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"DTIC AND NTIS","raw_type":"Text"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":["https://openalex.org/W2998032149","https://openalex.org/W2049397750","https://openalex.org/W4256612955","https://openalex.org/W128991938","https://openalex.org/W2094831023","https://openalex.org/W2053158724","https://openalex.org/W1969422468","https://openalex.org/W2594147255","https://openalex.org/W2015594926","https://openalex.org/W3189794487"],"abstract_inverted_index":{"Three":[0],"methods":[1],"of":[2,5,31,54,65,74,80,97,130,139],"spatial":[3,82],"filtration":[4,90],"image-orthicon":[6],"pictures":[7],"are":[8,24],"considered:":[9],"(1)":[10],"two":[11],"independently":[12],"produced":[13],"images":[14],"-":[15,23,108,113],"a":[16,20,44,72,101,110,119,128,136],"high-definition":[17],"positive":[18],"and":[19,56],"blurred":[21],"negative":[22,102],"algebraically":[25],"combined":[26],"on":[27,161],"the":[28,32,38,52,57,63,66,95,105,115,131,151,162,165,169],"storing":[29],"target":[30,67,116,143,163],"orthicon.":[33],"An":[34,87],"additional":[35,88],"grid":[36],"in":[37,94,124],"image-transfer":[39],"section":[40],"is":[41,159,174],"introduced.":[42],"Such":[43,118],"spatial-frequency":[45],"filter":[46,112],"can":[47,84,91,145],"be":[48,85,92,146],"adjusted":[49],"by":[50,61,69,99],"varying":[51],"potentials":[53],"electrodes":[55],"exposure":[58],"time;":[59],"(2)":[60],"selecting":[62],"potential":[64,144],"irradiated":[68],"slow":[70],"electrons,":[71],"compensation":[73],"relatively":[75],"uniform":[76],"background":[77],"noise":[78],"(suppression":[79],"lower":[81],"frequencies)":[83],"achieved.":[86],"1-f":[89,111],"obtained,":[93],"process":[96],"readout,":[98,167],"applying":[100],"feedback":[103],"from":[104],"video-amplifier":[106],"output":[107],"via":[109],"to":[114],"grid.":[117],"method":[120,133],"may":[121],"find":[122],"application":[123],"astronomic":[125],"TV;":[126],"(3)":[127],"modification":[129],"preceding":[132],"permits":[134],"obtaining":[135],"two-side":[137],"restriction":[138],"electronic":[140],"images.":[141],"The":[142],"reduced":[147],"as":[148,150],"soon":[149],"storage":[152],"has":[153],"been":[154],"completed.":[155],"As":[156],"this":[157],"operation":[158],"performed":[160],"before":[164],"image":[166],"only":[168],"desirable":[170],"picture":[171],"(not":[172],"noise)":[173],"accentuated.":[175]},"counts_by_year":[],"updated_date":"2026-09-25T08:18:29.962427","created_date":"2025-10-10T00:00:00"}