3-D Retinal Curvature Estimation
We study 3-D retinal curvature estimation from multiple images that provides the fundamental geometry of the human retina and could be used for 3-D retina visualization and disease diagnosis purposes. An affine camera model is used for 3-D reconstruction due to its simplicity, linearity, and robustn...
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| Veröffentlicht in: | IEEE journal of biomedical and health informatics 2009-11, Vol.13 (6), p.997-1005 |
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| container_title | IEEE journal of biomedical and health informatics |
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| creator | Chanwimaluang, T. Guoliang Fan Yen, G.G. Fransen, S.R. |
| description | We study 3-D retinal curvature estimation from multiple images that provides the fundamental geometry of the human retina and could be used for 3-D retina visualization and disease diagnosis purposes. An affine camera model is used for 3-D reconstruction due to its simplicity, linearity, and robustness. A major challenge is that a series of optics is involved in the retinal imaging process, including an actual fundus camera, a digital camera, and the optics of the human eye, all of which cause significant nonlinear distortions in retinal images. In this paper, we develop a new constrained optimization method that considers both the geometric shape of the human retina and nonlinear lens distortions. Moreover, we examine a variety of lens distortion models to approximate the optics of the human eye in order to create a smooth spherical surface for curvature estimation. The experimental results on both synthetic data and real retinal images validate the proposed algorithm. |
| doi_str_mv | 10.1109/TITB.2009.2027014 |
| format | Article |
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| source | IEEE Electronic Library (IEL) |
| subjects | Affine camera Algorithms bundle adjustment (BA) Digital cameras Diseases Eyes & eyesight Geometrical optics Humans Imaging, Three-Dimensional - methods lens distortion Lens, Crystalline - anatomy & histology Lenses Models, Biological Nonlinear distortion Nonlinear optics Optical distortion Photography - methods Reproducibility of Results Retina Retina - anatomy & histology retinal curvature estimation structure from motion (SfM) Visualization |
| title | 3-D Retinal Curvature Estimation |
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