{"doi":"10.1016/j.net.2022.03.025","title":"Performance analysis of improved hybrid median filter applied to X-ray computed tomography images obtained with high-resolution photon-counting CZT detector: A pilot study","abstract":null,"journal":"Nuclear Engineering and Technology","year":2022,"id":614359,"datarank":0.40620753016533157,"base_score":2.70805020110221,"endowment":2.70805020110221,"self_citation_contribution":0.40620753016533157,"citation_network_contribution":0.0,"self_endowment_contribution":0.40620753016533157,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":14,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":null,"is_data_producer":false,"deposit_databanks":null,"is_oa":false,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":null,"fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":913678,"name":"Youngjin Lee","orcid":"0000-0002-6848-7666","position":0,"is_corresponding":false}],"reference_count":0,"raw_metadata":{"has_enrichment":true,"resolved":true,"title":"Performance analysis of improved hybrid median filter applied to X-ray computed tomography images obtained with high-resolution photon-counting CZT detector: A pilot study","abstract":"We evaluated the performance of an improved hybrid median filter (IHMF) applied to X-ray computed tomography (CT) images obtained using a high-resolution photon-counting cadmium zinc telluride (CZT) detector. To study how the proposed approach improves the image quality, we measured the noise levels and the overall CT-image quality. We established a CZT imaging system with a detector length of 5.12 cm and thickness of 0.3 cm and acquired phantom images. To evaluate the efficacy of the proposed filter, we first modeled two conventional median filters. Subsequently, we were able to achieve a normalized noise power spectrum result of ∼10−8 mm2, and furthermore, the proposed method improved the contrast-to-noise ratio by a factor of ∼1.51 and the coefficient of variation by 1.55 relative to the counterpart values of the no-filter image. In addition, the IHMF exhibited the best performance among the three filters considered as regards the peak signal-to-noise ratio and no-reference-based image-quality evaluation parameters. Thus, our results demonstrate that the IHMF approach provides a superior image performance over conventional median filtering methods when applied to actual CZT X-ray CT images.","is_dataset_classified":null,"base_score":2.70805020110221,"endowment":2.70805020110221,"datacite_reuse_total":0,"file_count":0,"downloads":0,"views":0,"has_version_chain":false,"is_dataset":false,"is_oa":false,"pmid":"23304386","pmcid":null,"openalex_id":"https://openalex.org/W4220815984","authors":[],"funders":[{"funder_name":"National Research Foundation of Korea","grant_id":"NRF-2021R1F1A1061440","title":null}],"total_grants":1,"fwci":1.0014,"citation_percentile":0.70380008,"influential_citations":0,"citation_trend":[{"year":2022,"count":3},{"year":2023,"count":3},{"year":2024,"count":2},{"year":2025,"count":6}],"oa_status":"gold","license":"cc-by-nc-nd","oa_locations":[{"url":"https://doi.org/10.1016/j.net.2022.03.025","host_type":"journal"},{"url":"https://doi.org/10.1016/j.net.2022.03.025","host_type":"publisher"},{"url":"https://api.elsevier.com/content/article/PII:S1738573322001656?httpAccept=text/xml","host_type":"publisher"},{"url":"https://api.elsevier.com/content/article/PII:S1738573322001656?httpAccept=text/plain","host_type":"publisher"},{"url":"https://doaj.org/article/39bbebc871e94ebc926076cf571e9c9d","host_type":"repository"}],"fields_of_study":["Advanced X-ray and CT Imaging","Medical Imaging Techniques and Applications","Digital Radiography and Breast Imaging"],"mesh_terms":[],"keywords":["Cadmium zinc telluride","Imaging phantom","Image quality","Detector","Contrast-to-noise ratio","Filter (signal processing)","Noise (video)","Photon counting","Signal-to-noise ratio (imaging)","Image resolution","Optics","X-ray detector","Tomography","Materials science","Nuclear medicine","Physics","Computer science","Artificial intelligence","Image (mathematics)","Computer vision","Medicine"],"sdg_mappings":[{"sdg_number":0,"sdg_label":"Affordable and clean energy"}],"linked_datasets":[],"clinical_trials":[],"software_tools":[],"database_accessions":[],"source":"live","citation_network_status":"fetched"},"created_at":"2026-08-02T12:44:39.815158Z","pmid":null,"pmcid":null,"fwci":null,"citation_percentile":null,"influential_citations":0,"oa_status":null,"license":null,"views":0,"total_file_size_bytes":0,"version_count":0,"fair_f":null,"fair_a":null,"fair_i":null,"fair_r":null,"fair_zscore":null,"fair_rationale":null,"fair_model":null,"fair_agent_version":null,"fair_fulltext_source":null,"fair_has_llm":null,"fair_computed_at":null,"clinical_trials":[],"software_tools":[],"db_accessions":[],"linked_datasets":[],"topics":[]}