{"id":"https://openalex.org/W2588694707","doi":"https://doi.org/10.1061/(asce)cp.1943-5487.0000631","title":"Improved Image Unevenness Reduction and Thresholding Methods for Effective Asphalt X-Ray CT Image Segmentation","display_name":"Improved Image Unevenness Reduction and Thresholding Methods for Effective Asphalt X-Ray CT Image Segmentation","publication_year":2017,"publication_date":"2017-02-18","ids":{"openalex":"https://openalex.org/W2588694707","doi":"https://doi.org/10.1061/(asce)cp.1943-5487.0000631","mag":"2588694707"},"language":"en","primary_location":{"id":"doi:10.1061/(asce)cp.1943-5487.0000631","is_oa":false,"landing_page_url":"https://doi.org/10.1061/(asce)cp.1943-5487.0000631","pdf_url":null,"source":{"id":"https://openalex.org/S176637136","display_name":"Journal of Computing in Civil Engineering","issn_l":"0887-3801","issn":["0887-3801","1943-5487"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310315747","host_organization_name":"American Society of Civil Engineers","host_organization_lineage":["https://openalex.org/P4310315747"],"host_organization_lineage_names":["American Society of Civil Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Computing in Civil Engineering","raw_type":"journal-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/A5089448955","display_name":"Ling Chen","orcid":"https://orcid.org/0000-0002-6490-3108"},"institutions":[{"id":"https://openalex.org/I14243506","display_name":"Hong Kong Polytechnic University","ror":"https://ror.org/0030zas98","country_code":"HK","type":"education","lineage":["https://openalex.org/I14243506"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Ling Chen","raw_affiliation_strings":["Ph.D. Candidate, Dept. of Civil and Environmental Engineering, Hong Kong Polytechnic Univ., Kowloon, Hong Kong SAR"],"affiliations":[{"raw_affiliation_string":"Ph.D. Candidate, Dept. of Civil and Environmental Engineering, Hong Kong Polytechnic Univ., Kowloon, Hong Kong SAR","institution_ids":["https://openalex.org/I14243506"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100413976","display_name":"Yuhong Wang","orcid":"https://orcid.org/0000-0002-4506-4230"},"institutions":[{"id":"https://openalex.org/I14243506","display_name":"Hong Kong Polytechnic University","ror":"https://ror.org/0030zas98","country_code":"HK","type":"education","lineage":["https://openalex.org/I14243506"]}],"countries":["HK"],"is_corresponding":true,"raw_author_name":"Yuhong Wang","raw_affiliation_strings":["Associate Professor, Dept. of Civil and Environmental Engineering, Research Institute for Sustainable Urban Development, Hong Kong Polytechnic Univ., Kowloon, Hong Kong SAR (corresponding author). ORCID: ","Associate Professor, Dept. of Civil and Environmental Engineering, Research Institute for Sustainable Urban Development, Hong Kong Polytechnic Univ., Kowloon, Hong Kong SAR. ORCID: http://orcid.org/0000-0002-4506-4230. E-mail:"],"affiliations":[{"raw_affiliation_string":"Associate Professor, Dept. of Civil and Environmental Engineering, Research Institute for Sustainable Urban Development, Hong Kong Polytechnic Univ., Kowloon, Hong Kong SAR (corresponding author). ORCID: ","institution_ids":[]},{"raw_affiliation_string":"Associate Professor, Dept. of Civil and Environmental Engineering, Research Institute for Sustainable Urban Development, Hong Kong Polytechnic Univ., Kowloon, Hong Kong SAR. ORCID: http://orcid.org/0000-0002-4506-4230. E-mail:","institution_ids":["https://openalex.org/I14243506"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5100413976"],"corresponding_institution_ids":["https://openalex.org/I14243506"],"apc_list":null,"apc_paid":null,"fwci":1.1202,"has_fulltext":false,"cited_by_count":31,"citation_normalized_percentile":{"value":0.77458662,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"31","issue":"4","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11606","display_name":"Infrastructure Maintenance and Monitoring","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural 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/T11606","display_name":"Infrastructure Maintenance and Monitoring","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural 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/T10264","display_name":"Asphalt Pavement Performance Evaluation","score":0.9987000226974487,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural 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/T12549","display_name":"Image and Object Detection Techniques","score":0.9916999936103821,"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/thresholding","display_name":"Thresholding","score":0.9023259282112122},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.6732890009880066},{"id":"https://openalex.org/keywords/asphalt","display_name":"Asphalt","score":0.5955371260643005},{"id":"https://openalex.org/keywords/grayscale","display_name":"Grayscale","score":0.5904035568237305},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.5879978537559509},{"id":"https://openalex.org/keywords/segmentation","display_name":"Segmentation","score":0.5605219006538391},{"id":"https://openalex.org/keywords/image-processing","display_name":"Image processing","score":0.5501506924629211},{"id":"https://openalex.org/keywords/image-segmentation","display_name":"Image segmentation","score":0.545326828956604},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5409227013587952},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.44054800271987915},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.2171379029750824}],"concepts":[{"id":"https://openalex.org/C191178318","wikidata":"https://www.wikidata.org/wiki/Q2256906","display_name":"Thresholding","level":3,"score":0.9023259282112122},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6732890009880066},{"id":"https://openalex.org/C168056786","wikidata":"https://www.wikidata.org/wiki/Q202251","display_name":"Asphalt","level":2,"score":0.5955371260643005},{"id":"https://openalex.org/C78201319","wikidata":"https://www.wikidata.org/wiki/Q685727","display_name":"Grayscale","level":3,"score":0.5904035568237305},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.5879978537559509},{"id":"https://openalex.org/C89600930","wikidata":"https://www.wikidata.org/wiki/Q1423946","display_name":"Segmentation","level":2,"score":0.5605219006538391},{"id":"https://openalex.org/C9417928","wikidata":"https://www.wikidata.org/wiki/Q1070689","display_name":"Image processing","level":3,"score":0.5501506924629211},{"id":"https://openalex.org/C124504099","wikidata":"https://www.wikidata.org/wiki/Q56933","display_name":"Image segmentation","level":3,"score":0.545326828956604},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5409227013587952},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.44054800271987915},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.2171379029750824},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1061/(asce)cp.1943-5487.0000631","is_oa":false,"landing_page_url":"https://doi.org/10.1061/(asce)cp.1943-5487.0000631","pdf_url":null,"source":{"id":"https://openalex.org/S176637136","display_name":"Journal of Computing in Civil Engineering","issn_l":"0887-3801","issn":["0887-3801","1943-5487"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310315747","host_organization_name":"American Society of Civil Engineers","host_organization_lineage":["https://openalex.org/P4310315747"],"host_organization_lineage_names":["American Society of Civil Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Computing in Civil Engineering","raw_type":"journal-article"},{"id":"pmh:oai:ira.lib.polyu.edu.hk:10397/76282","is_oa":false,"landing_page_url":"http://hdl.handle.net/10397/76282","pdf_url":null,"source":{"id":"https://openalex.org/S4306400205","display_name":"PolyU Institutional Research Archive (Hong Kong Polytechnic University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I14243506","host_organization_name":"Hong Kong Polytechnic University","host_organization_lineage":["https://openalex.org/I14243506"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Journal/Magazine Article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.47999998927116394,"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320322598","display_name":"Hong Kong Polytechnic University","ror":"https://ror.org/0030zas98"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":47,"referenced_works":["https://openalex.org/W645221831","https://openalex.org/W653918467","https://openalex.org/W1200012287","https://openalex.org/W1574447377","https://openalex.org/W1965555277","https://openalex.org/W1973558789","https://openalex.org/W1975359898","https://openalex.org/W1975838423","https://openalex.org/W1976941053","https://openalex.org/W1978836391","https://openalex.org/W1980251937","https://openalex.org/W1986369277","https://openalex.org/W1986970058","https://openalex.org/W1997552480","https://openalex.org/W2017908422","https://openalex.org/W2027091505","https://openalex.org/W2030349659","https://openalex.org/W2030873530","https://openalex.org/W2045004323","https://openalex.org/W2047097851","https://openalex.org/W2048297549","https://openalex.org/W2057055225","https://openalex.org/W2061572562","https://openalex.org/W2066350139","https://openalex.org/W2067943751","https://openalex.org/W2077678701","https://openalex.org/W2083970667","https://openalex.org/W2086437745","https://openalex.org/W2089302653","https://openalex.org/W2093286218","https://openalex.org/W2101891472","https://openalex.org/W2112373205","https://openalex.org/W2128210392","https://openalex.org/W2133059825","https://openalex.org/W2133412966","https://openalex.org/W2140014334","https://openalex.org/W2154507547","https://openalex.org/W2155492694","https://openalex.org/W2156359616","https://openalex.org/W2157259291","https://openalex.org/W2210465579","https://openalex.org/W2246993898","https://openalex.org/W2460403215","https://openalex.org/W2503239832","https://openalex.org/W3023803490","https://openalex.org/W4240348877","https://openalex.org/W6680096826"],"related_works":["https://openalex.org/W2549418288","https://openalex.org/W2536634271","https://openalex.org/W2125132704","https://openalex.org/W2141690231","https://openalex.org/W3175788458","https://openalex.org/W2020103936","https://openalex.org/W4295539746","https://openalex.org/W81392389","https://openalex.org/W2348374226","https://openalex.org/W4200222166"],"abstract_inverted_index":{"The":[0,87,139],"internal":[1],"structure":[2],"of":[3,19,89,146],"asphalt":[4,33,77,147],"mixture":[5],"revealed":[6],"by":[7,41,50],"X-ray":[8,34],"computed":[9],"tomography":[10],"(CT)":[11],"images":[12,79,149],"provides":[13],"useful":[14],"information":[15],"in":[16,32,98],"a":[17,55,120,136],"variety":[18],"civil":[20],"engineering":[21,152],"applications.":[22,153],"This":[23],"paper":[24],"studied":[25],"two":[26],"image":[27,37,47,63],"processing":[28],"issues":[29],"commonly":[30],"encountered":[31],"CT":[35,78,148],"images:":[36],"intensity":[38,64],"unevenness":[39],"caused":[40],"beam":[42],"hardening":[43],"effect":[44],"and":[45,85,110],"unrealistic":[46],"segmentation.":[48],"Inspired":[49],"nonuniform":[51],"illumination":[52],"correction":[53],"techniques,":[54],"grayscale":[56],"morphological":[57],"method":[58],"is":[59],"proposed":[60,104],"to":[61,73,122,126],"solve":[62],"unevenness.":[65],"Two":[66],"modified":[67],"multilevel":[68,91],"thresholding":[69,92,116],"methods":[70,93,105,141],"are":[71],"developed":[72,97,115,140],"effectively":[74],"divide":[75],"the":[76,95,103,114,144],"into":[80],"three":[81],"phases\u2014air":[82],"voids,":[83],"binder,":[84],"aggregates.":[86],"comparisons":[88],"existing":[90],"with":[94],"ones":[96],"this":[99],"study":[100],"indicate":[101],"that":[102],"provide":[106],"more":[107],"consistent,":[108],"robust,":[109],"accurate":[111],"results.":[112],"Moreover,":[113],"objective":[117],"functions":[118],"enable":[119],"user":[121],"easily":[123],"adjust":[124],"thresholds":[125],"match":[127],"visual":[128],"examination":[129],"or":[130],"laboratory":[131],"test":[132],"results":[133],"through":[134],"modifying":[135],"single":[137],"parameter.":[138],"help":[142],"improve":[143],"analysis":[145],"for":[150],"various":[151]},"counts_by_year":[{"year":2025,"cited_by_count":10},{"year":2024,"cited_by_count":6},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":5},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}