A Computer Algorithm to Quantitatively Assess Quality of Digital Optic Disc Images

作者:Moscaritolo Michele; Jampel Henry; Zimmer Galler Ingrid; Knezevich Frederick; Zeimer Ran*
来源:Ophthalmic Surgery, Lasers and Imaging, 2010, 41(2): 279-284.
DOI:10.3928/15428877-20100303-21

摘要

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 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 HIM COW 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. [Ophthalmic Surg Lasers Imaging 2010;41:279-284.]

  • 出版日期2010-4