TY - JOUR
T1 - A computer algorithm to quantitatively assess quality of digital optic disc images
AU - Moscaritolo, Michele
AU - Jampel, Henry
AU - Zimmer-Galler, Ingrid
AU - Knezevich, Frederick
AU - Zeimer, Ran
PY - 2010/3
Y1 - 2010/3
N2 - Optic disc photography is used in the management and study of glaucoma. Quality assessment is needed at the time of acquisition and during review. A computerized algorithm for objective quality assessment was developed to mimic the procedure used by human observers. It was tested on film-based images obtained with mydriasis (40 normal and 46 glaucomatous eyes) and non-mydriatic digital images (30 normal and 38 glaucomatous eyes). The image sharpness was graded by six masked readers into four categories. The area under the receiver operating characteristic curve for identifying unreadable images was 1.0 for the digital and film-based images and 0.91 and 1.0 for differentiating between unreadable and mediocre images for digital and film-based images, respectively. This pilot study demonstrates that the algorithm can identify all unreadable images. Further studies are necessary to test whether it can be applied to images obtained in other locations on the fundus and with additional cameras.
AB - Optic disc photography is used in the management and study of glaucoma. Quality assessment is needed at the time of acquisition and during review. A computerized algorithm for objective quality assessment was developed to mimic the procedure used by human observers. It was tested on film-based images obtained with mydriasis (40 normal and 46 glaucomatous eyes) and non-mydriatic digital images (30 normal and 38 glaucomatous eyes). The image sharpness was graded by six masked readers into four categories. The area under the receiver operating characteristic curve for identifying unreadable images was 1.0 for the digital and film-based images and 0.91 and 1.0 for differentiating between unreadable and mediocre images for digital and film-based images, respectively. This pilot study demonstrates that the algorithm can identify all unreadable images. Further studies are necessary to test whether it can be applied to images obtained in other locations on the fundus and with additional cameras.
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U2 - 10.3928/15428877-20100303-21
DO - 10.3928/15428877-20100303-21
M3 - Article
C2 - 20307051
AN - SCOPUS:77950415892
SN - 1542-8877
VL - 41
SP - 279
EP - 284
JO - Ophthalmic Surgery Lasers and Imaging
JF - Ophthalmic Surgery Lasers and Imaging
IS - 2
ER -