Correlation between objective and subjective image quality measures of medical radiographs
Image quality of Lanex Regular/T Mat G and Lanex Regular/T Mat L screen-film systems was measured objectively by means of noise equivalent quanta (NEQ) and subjectively by means of receiver operating characteristic (ROC) curve analysis to study the correlation between the two measures. For the objec...
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| Format: | Article |
| Language: | English |
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Faculty of Science, UTM
2003
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| Online Access: | http://eprints.utm.my/11004/ http://eprints.utm.my/11004/1/WanMuhamadSaridan2003_CorrelationBetweenObjectiveandSubjective.pdf |
| _version_ | 1848892233103704064 |
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| author | Wan Hassan, Wan Muhamad Saridan Munajat, Yusof Sahibuddin, Shamsul |
| author_facet | Wan Hassan, Wan Muhamad Saridan Munajat, Yusof Sahibuddin, Shamsul |
| author_sort | Wan Hassan, Wan Muhamad Saridan |
| building | UTeM Institutional Repository |
| collection | Online Access |
| description | Image quality of Lanex Regular/T Mat G and Lanex Regular/T Mat L screen-film systems was measured objectively by means of noise equivalent quanta (NEQ) and subjectively by means of receiver operating characteristic (ROC) curve analysis to study the correlation between the two measures. For the objective measure, uniformly exposed radiographs and radiographs of bar pattern test object were used to determine the NEQ. For the subjeclive measure, detection of simulated lesions in posteroanterior anthropomorphic chest radiographs by an observer was analysed by the ROC methodology. Both measures show that a low frequency signal shows better on Lanex Regular/T Mat L, whilst a high frequency signal shows better on Lanex Regular/T Mat G. |
| first_indexed | 2025-11-15T21:10:36Z |
| format | Article |
| id | utm-11004 |
| institution | Universiti Teknologi Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T21:10:36Z |
| publishDate | 2003 |
| publisher | Faculty of Science, UTM |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utm-110042010-11-19T02:32:45Z http://eprints.utm.my/11004/ Correlation between objective and subjective image quality measures of medical radiographs Wan Hassan, Wan Muhamad Saridan Munajat, Yusof Sahibuddin, Shamsul QC Physics Image quality of Lanex Regular/T Mat G and Lanex Regular/T Mat L screen-film systems was measured objectively by means of noise equivalent quanta (NEQ) and subjectively by means of receiver operating characteristic (ROC) curve analysis to study the correlation between the two measures. For the objective measure, uniformly exposed radiographs and radiographs of bar pattern test object were used to determine the NEQ. For the subjeclive measure, detection of simulated lesions in posteroanterior anthropomorphic chest radiographs by an observer was analysed by the ROC methodology. Both measures show that a low frequency signal shows better on Lanex Regular/T Mat L, whilst a high frequency signal shows better on Lanex Regular/T Mat G. Faculty of Science, UTM 2003-12 Article PeerReviewed application/pdf en http://eprints.utm.my/11004/1/WanMuhamadSaridan2003_CorrelationBetweenObjectiveandSubjective.pdf Wan Hassan, Wan Muhamad Saridan and Munajat, Yusof and Sahibuddin, Shamsul (2003) Correlation between objective and subjective image quality measures of medical radiographs. Jurnal Fizik UTM, 9 (1). pp. 30-37. ISSN 0128-8644 |
| spellingShingle | QC Physics Wan Hassan, Wan Muhamad Saridan Munajat, Yusof Sahibuddin, Shamsul Correlation between objective and subjective image quality measures of medical radiographs |
| title | Correlation between objective and subjective image quality measures of medical radiographs |
| title_full | Correlation between objective and subjective image quality measures of medical radiographs |
| title_fullStr | Correlation between objective and subjective image quality measures of medical radiographs |
| title_full_unstemmed | Correlation between objective and subjective image quality measures of medical radiographs |
| title_short | Correlation between objective and subjective image quality measures of medical radiographs |
| title_sort | correlation between objective and subjective image quality measures of medical radiographs |
| topic | QC Physics |
| url | http://eprints.utm.my/11004/ http://eprints.utm.my/11004/1/WanMuhamadSaridan2003_CorrelationBetweenObjectiveandSubjective.pdf |