Depth discontinuity-based cup segmentation from multiview color retinal images

IEEE Transactions on Bio-medical Engineering
Gopal Datt JoshiS R Krishnadas

Abstract

Accurate segmentation of the cup region from retinal images is needed to derive relevant measurements for glaucoma assessment. A novel, depth discontinuity (in the retinal surface)-based approach to estimate the cup boundary is proposed in this paper. The proposed approach shifts focus from the cup region used by existing approaches to cup boundary. The given set of images, acquired sequentially, are related via a relative motion model and the depth discontinuity at the cup boundary is determined from cues such as motion boundary and partial occlusion. The information encoded by these cues is used to approximate the cup boundary with a set of best-fitting circles. The final boundary is found by considering points on these circles at different sectors using a confidence measure. Four different kinds of data sets ranging from synthetic to real image pairs, covering different multiview scenarios, have been used to evaluate the proposed method. The proposed method was found to yield an error reduction of 16% for cup-to-disk vertical diameter ratio (CDR) and 13% for cup-to-disk area ratio (CAR) estimation, over an existing monocular image-based cup segmentation method. The error reduction increased to 33% in CDR and 18% in CAR with ...Continue Reading

References

Jan 5, 1999·Medical Image Analysis·J P Thirion
Feb 15, 2003·IEEE Transactions on Medical Imaging·Enrique CoronaPeter Soliz
Jul 19, 2005·Computers in Biology and Medicine·Juan Xu, Opas Chutatape
Mar 29, 2007·Investigative Ophthalmology & Visual Science·Michael D AbràmoffYoung H Kwon
Dec 2, 2008·NeuroImage·Tom VercauterenNicholas Ayache
Dec 2, 2010·IEEE Transactions on Bio-medical Engineering·Luca GiancardoEdward Chaum
May 4, 2011·IEEE Transactions on Medical Imaging·Gopal Datt JoshiS R Krishnadas
Feb 1, 1985·IEEE Transactions on Pattern Analysis and Machine Intelligence·K M Mutch, W B Thompson

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Citations

Sep 2, 2014·BMC Medical Informatics and Decision Making·Zhuo ZhangJiang Liu
Sep 4, 2016·Computerized Medical Imaging and Graphics : the Official Journal of the Computerized Medical Imaging Society·Julian ZillyDwarikanath Mahapatra
Oct 21, 2016·Bioengineered·Man HuYongli Xu
Apr 7, 2019·Journal of Medical Systems·M SooryaMalay Kishore Dutta

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