{"id":"https://openalex.org/W7224448035","doi":"https://doi.org/10.64898/2026.10.27.761967","title":"CountAnywhere: frugal cell counting and viability from smartphone hemocytometer photos","display_name":"CountAnywhere: frugal cell counting and viability from smartphone hemocytometer photos","publication_year":2026,"publication_date":"2026-10-29","ids":{"openalex":"https://openalex.org/W7224448035","doi":"https://doi.org/10.64898/2026.10.27.761967"},"language":"en","primary_location":{"id":"doi:10.64898/2026.10.27.761967","doi":"https://doi.org/10.64898/2026.10.27.761967","is_oa":true,"landing_page_url":"https://doi.org/10.64898/2026.10.27.761967","pdf_url":"https://www.biorxiv.org/content/biorxiv/early/2026/10/29/2026.10.27.761967.full.pdf","source":{"id":"https://openalex.org/S4306402567","display_name":"bioRxiv (Cold Spring Harbor Laboratory)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I2750212522","host_organization_name":"Cold Spring Harbor Laboratory","host_organization_lineage":["https://openalex.org/I2750212522"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"bioRxiv","raw_type":"posted-content"},"volume":null,"type":"preprint","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://www.biorxiv.org/content/biorxiv/early/2026/10/29/2026.10.27.761967.full.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5139930590","display_name":"Matthew Yang","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126744593","display_name":"University of Maryland, Baltimore","ror":"https://ror.org/04rq5mt64","country_code":"US","type":"education","lineage":["https://openalex.org/I126744593"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Matthew Yang","raw_affiliation_strings":["Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA","institution_ids":["https://openalex.org/I126744593"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5160074758","display_name":"Misgana Mamo","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126744593","display_name":"University of Maryland, Baltimore","ror":"https://ror.org/04rq5mt64","country_code":"US","type":"education","lineage":["https://openalex.org/I126744593"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Misgana Mamo","raw_affiliation_strings":["Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA","institution_ids":["https://openalex.org/I126744593"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5069530334","display_name":"Asad Usmani","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126744593","display_name":"University of Maryland, Baltimore","ror":"https://ror.org/04rq5mt64","country_code":"US","type":"education","lineage":["https://openalex.org/I126744593"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Asad Usmani","raw_affiliation_strings":["Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA","institution_ids":["https://openalex.org/I126744593"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5160092023","display_name":"Leila Janowska","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126744593","display_name":"University of Maryland, Baltimore","ror":"https://ror.org/04rq5mt64","country_code":"US","type":"education","lineage":["https://openalex.org/I126744593"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Leila Janowska","raw_affiliation_strings":["Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA","institution_ids":["https://openalex.org/I126744593"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5140745721","display_name":"Baixuan Yang","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I126744593","display_name":"University of Maryland, Baltimore","ror":"https://ror.org/04rq5mt64","country_code":"US","type":"education","lineage":["https://openalex.org/I126744593"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Baixuan Yang","raw_affiliation_strings":["Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA","institution_ids":["https://openalex.org/I126744593"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054368715","display_name":"Miros\u0142aw Janowski","orcid":"https://orcid.org/0000-0001-5261-7975","observed_orcids":["https://orcid.org/0000-0001-5261-7975"]},"institutions":[{"id":"https://openalex.org/I126744593","display_name":"University of Maryland, Baltimore","ror":"https://ror.org/04rq5mt64","country_code":"US","type":"education","lineage":["https://openalex.org/I126744593"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Miroslaw Janowski","raw_affiliation_strings":["Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA","institution_ids":["https://openalex.org/I126744593"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045191289","display_name":"Piotr Walczak","orcid":"https://orcid.org/0000-0002-3733-3322","observed_orcids":["https://orcid.org/0000-0002-3733-3322"]},"institutions":[{"id":"https://openalex.org/I126744593","display_name":"University of Maryland, Baltimore","ror":"https://ror.org/04rq5mt64","country_code":"US","type":"education","lineage":["https://openalex.org/I126744593"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Piotr Walczak","raw_affiliation_strings":["Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA","institution_ids":["https://openalex.org/I126744593"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070912636","display_name":"Fengtong Du","orcid":"https://orcid.org/0000-0002-6293-8489","observed_orcids":["https://orcid.org/0000-0002-6293-8489"]},"institutions":[{"id":"https://openalex.org/I1344073410","display_name":"Howard Hughes Medical Institute","ror":"https://ror.org/006w34k90","country_code":"US","type":"facility","lineage":["https://openalex.org/I1344073410"]},{"id":"https://openalex.org/I195573530","display_name":"Janelia Research Campus","ror":"https://ror.org/013sk6x84","country_code":"US","type":"facility","lineage":["https://openalex.org/I1344073410","https://openalex.org/I195573530"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Fengtong Du","raw_affiliation_strings":["Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, Virginia, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, Virginia, USA","institution_ids":["https://openalex.org/I1344073410","https://openalex.org/I195573530"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5026285776","display_name":"Yajie Liang","orcid":"https://orcid.org/0000-0002-4798-4882","observed_orcids":["https://orcid.org/0000-0002-4798-4882"]},"institutions":[{"id":"https://openalex.org/I126744593","display_name":"University of Maryland, Baltimore","ror":"https://ror.org/04rq5mt64","country_code":"US","type":"education","lineage":["https://openalex.org/I126744593"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Yajie Liang","raw_affiliation_strings":["Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA"],"raw_orcid":"https://orcid.org/0000-0002-4798-4882","affiliations":[{"raw_affiliation_string":"Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA","institution_ids":["https://openalex.org/I126744593"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5026285776"],"corresponding_institution_ids":["https://openalex.org/I126744593"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"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/T12859","display_name":"Cell Image Analysis Techniques","score":0.9990000128746033,"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"}},"topics":[{"id":"https://openalex.org/T12859","display_name":"Cell Image Analysis Techniques","score":0.9990000128746033,"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"}},{"id":"https://openalex.org/T12874","display_name":"Digital Imaging for Blood Diseases","score":0.0006000000284984708,"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/T10036","display_name":"Advanced Neural Network Applications","score":0.0,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/cell-counting","display_name":"cell counting","score":0.9390000104904175},{"id":"https://openalex.org/keywords/cell-viability","display_name":"cell viability","score":0.9110000133514404},{"id":"https://openalex.org/keywords/trypan-blue-staining","display_name":"trypan blue staining","score":0.7760000228881836},{"id":"https://openalex.org/keywords/smartphone-imaging","display_name":"smartphone imaging","score":0.5550000071525574},{"id":"https://openalex.org/keywords/hemocytometer","display_name":"hemocytometer","score":0.9769999980926514},{"id":"https://openalex.org/keywords/cell-segmentation","display_name":"cell segmentation","score":0.746999979019165},{"id":"https://openalex.org/keywords/cell-density-estimation","display_name":"cell density estimation","score":0.33500000834465027}],"concepts":[{"id":"https://openalex.org/C19374876","wikidata":"https://www.wikidata.org/wiki/Q247170","display_name":"Hemocytometer","level":2,"score":0.9969000220298767},{"id":"https://openalex.org/C2583947","wikidata":"https://www.wikidata.org/wiki/Q5058179","display_name":"Cell counting","level":4,"score":0.7774999737739563},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4941999912261963},{"id":"https://openalex.org/C2983008078","wikidata":"https://www.wikidata.org/wiki/Q863495","display_name":"Grid cell","level":3,"score":0.49239999055862427},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.47940000891685486},{"id":"https://openalex.org/C89600930","wikidata":"https://www.wikidata.org/wiki/Q1423946","display_name":"Segmentation","level":2,"score":0.42730000615119934},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4138999879360199},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.4016000032424927},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.33309999108314514},{"id":"https://openalex.org/C192209626","wikidata":"https://www.wikidata.org/wiki/Q190909","display_name":"Focus (optics)","level":2,"score":0.313400000333786},{"id":"https://openalex.org/C124504099","wikidata":"https://www.wikidata.org/wiki/Q56933","display_name":"Image segmentation","level":3,"score":0.30640000104904175},{"id":"https://openalex.org/C3019060180","wikidata":"https://www.wikidata.org/wiki/Q184199","display_name":"Automated method","level":2,"score":0.3050000071525574},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.30070000886917114},{"id":"https://openalex.org/C22679943","wikidata":"https://www.wikidata.org/wiki/Q159375","display_name":"Standard deviation","level":2,"score":0.2987000048160553},{"id":"https://openalex.org/C40993552","wikidata":"https://www.wikidata.org/wiki/Q514654","display_name":"Gold standard (test)","level":2,"score":0.29789999127388},{"id":"https://openalex.org/C9417928","wikidata":"https://www.wikidata.org/wiki/Q1070689","display_name":"Image processing","level":3,"score":0.26980000734329224},{"id":"https://openalex.org/C121684516","wikidata":"https://www.wikidata.org/wiki/Q7600677","display_name":"Computer graphics (images)","level":1,"score":0.26019999384880066},{"id":"https://openalex.org/C105054674","wikidata":"https://www.wikidata.org/wiki/Q3707381","display_name":"Mean difference","level":3,"score":0.2572000026702881},{"id":"https://openalex.org/C2776004034","wikidata":"https://www.wikidata.org/wiki/Q1068755","display_name":"Check-in","level":2,"score":0.25290000438690186}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.64898/2026.10.27.761967","doi":"https://doi.org/10.64898/2026.10.27.761967","is_oa":true,"landing_page_url":"https://doi.org/10.64898/2026.10.27.761967","pdf_url":"https://www.biorxiv.org/content/biorxiv/early/2026/10/29/2026.10.27.761967.full.pdf","source":{"id":"https://openalex.org/S4306402567","display_name":"bioRxiv (Cold Spring Harbor Laboratory)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I2750212522","host_organization_name":"Cold Spring Harbor Laboratory","host_organization_lineage":["https://openalex.org/I2750212522"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"bioRxiv","raw_type":"posted-content"}],"best_oa_location":{"id":"doi:10.64898/2026.10.27.761967","doi":"https://doi.org/10.64898/2026.10.27.761967","is_oa":true,"landing_page_url":"https://doi.org/10.64898/2026.10.27.761967","pdf_url":"https://www.biorxiv.org/content/biorxiv/early/2026/10/29/2026.10.27.761967.full.pdf","source":{"id":"https://openalex.org/S4306402567","display_name":"bioRxiv (Cold Spring Harbor Laboratory)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I2750212522","host_organization_name":"Cold Spring Harbor Laboratory","host_organization_lineage":["https://openalex.org/I2750212522"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"bioRxiv","raw_type":"posted-content"},"sustainable_development_goals":[],"study_designs":[],"awards":[{"id":"https://openalex.org/G3095382044","display_name":null,"funder_award_id":"2022-MSCRFD-5886","funder_id":"https://openalex.org/F4320313540","funder_display_name":"Maryland Stem Cell Research Fund"},{"id":"https://openalex.org/G6106332794","display_name":null,"funder_award_id":"2024-MSCRFD-6363","funder_id":"https://openalex.org/F4320313540","funder_display_name":"Maryland Stem Cell Research Fund"},{"id":"https://openalex.org/G900841757","display_name":null,"funder_award_id":"2022-MSCRFL-5893","funder_id":"https://openalex.org/F4320313540","funder_display_name":"Maryland Stem Cell Research Fund"}],"funders":[{"id":"https://openalex.org/F4320313540","display_name":"Maryland Stem Cell Research Fund","ror":"https://ror.org/02wpjhe84"},{"id":"https://openalex.org/F4320332161","display_name":"National Institutes of Health","ror":"https://ror.org/01cwqze88"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W7224448035.pdf","grobid_xml":"https://content.openalex.org/works/W7224448035.grobid-xml"},"referenced_works_count":4,"referenced_works":["https://openalex.org/W2788075919","https://openalex.org/W4390874575","https://openalex.org/W4408804447","https://openalex.org/W4409988818"],"related_works":["https://openalex.org/W2945762784","https://openalex.org/W4396834964","https://openalex.org/W3088725074","https://openalex.org/W7137033584","https://openalex.org/W7202157058","https://openalex.org/W7165447263","https://openalex.org/W2042665609","https://openalex.org/W3135822363","https://openalex.org/W3197573389","https://openalex.org/W2807314944"],"abstract_inverted_index":{"Abstract":[0],"Cell":[1],"counting":[2,67,82],"sets":[3],"the":[4,66,71,98,177],"concentration,":[5],"viability":[6,54],"and":[7,34,51,79,109,128,156,196,205,209],"seeding":[8],"density":[9,167],"of":[10,60],"most":[11],"cell-based":[12],"experiments,":[13],"yet":[14],"it":[15],"still":[16],"relies":[17],"on":[18,25,92,106,192],"a":[19,31,35,45,61,74,76,80,88,110,187,193,201],"slow,":[20],"operator-dependent":[21],"hemocytometer":[22,133,204],"count":[23],"or":[24,123,191],"an":[26,56],"automated":[27],"counter":[28],"that":[29,48],"needs":[30,197],"dedicated":[32],"instrument":[33],"disposable":[36],"slide":[37],"for":[38],"every":[39],"sample.":[40],"Here":[41],"we":[42],"present":[43],"CountAnywhere,":[44],"browser-based":[46],"platform":[47],"counts":[49,136,145,159],"cells":[50,86,120],"scores":[52],"trypan-blue":[53],"from":[55,102],"ordinary":[57],"smartphone":[58],"photograph":[59],"standard":[62,202],"hemocytometer.":[63],"CountAnywhere":[64,184],"uses":[65],"grid":[68],"already":[69],"in":[70,176],"image":[72],"as":[73,121,165,186],"ruler,":[75],"focus":[77],"check":[78],"stereological":[81],"frame,":[83],"then":[84],"segments":[85],"with":[87,113,125,138],"Cellpose-SAM":[89],"model":[90],"fine-tuned":[91],"five":[93],"cell":[94,166,211],"lines.":[95],"Fine-tuning":[96],"raised":[97],"segmentation":[99],"F1":[100],"score":[101],"0.46":[103],"to":[104],"0.97":[105],"held-out":[107],"images,":[108],"local-contrast":[111],"rule":[112],"no":[114,198],"fitted":[115],"parameters":[116],"classified":[117],"5,739":[118],"hand-labeled":[119],"live":[122],"dead":[124],"98%":[126],"sensitivity":[127],"99%":[129],"specificity.":[130],"On":[131],"128":[132],"quadrants,":[134],"app":[135,178,190],"agreed":[137],"ground":[139],"truth":[140],"more":[141],"closely":[142],"than":[143],"manual":[144,158],"(concordance":[146],"0.999":[147],"vs":[148,154],"0.970;":[149],"mean":[150],"absolute":[151],"error":[152],"5.3%":[153],"10.7%),":[155],"unlike":[157],"they":[160],"did":[161],"not":[162],"drift":[163],"downward":[164],"rose.":[168],"A":[169],"full":[170],"chamber":[171],"took":[172],"about":[173],"50":[174],"s":[175,181],"against":[179],"122":[180],"by":[182],"hand.":[183],"runs":[185],"public":[188],"web":[189],"local":[194],"server":[195],"hardware":[199],"beyond":[200],"microscope,":[203],"phone,":[206],"democratizing":[207],"fast":[208],"accurate":[210],"counting.":[212]},"counts_by_year":[],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2026-10-30T00:00:00"}
