| Paper Abstract and Keywords |
| Presentation |
2006-01-28 09:30
3D reconstruction from single 2D fundus image using techniques for blood vessel analysis
Toshiaki Nakagawa (Gifu Univ.), Yoshinori Hayashi (TAK), Yuji Hatanaka (GNCT), Akira Aoyama, Takeshi Hara, Hiroshi Fujita, Tetsuya Yamamoto (Gifu Univ.), Yutaka Mizukusa, Akihiro Fujita (Kowa), Masakatsu Kakogawa (TAK) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
The purpose of this study is to develop a computer-aided diagnosis (CAD) system to detect abnormalities in color retinal images. Techniques have been proposed for automatic extraction of blood vessels (BVs), automatic measurement of diameter of BVs, erasing BVs, and detection of optic disk region. In this study, the techniques were applied to automatic 3D reconstruction using a single 2D fundus image. The BVs were extracted by using mathematical morphology operator from the green component of the RGB value of color retinal images. Next, the BVs were erased from the image and then erased pixels were interpolated by using the RGB values of pixels in surrounding region. The diameter of BV was defined as minimum length of line segment between the BV walls. 3D configuration of optic disk region was reconstructed using intensity of pixel values in BV-erased image as information of the depth. The 3D fundus image was able to express that blood vessels passed along the vitreous side of the retina and the optic disk's concave shape. It can be used as an assisting tool for test subjects to understand the anatomy of the fundus image. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
fundus examination / segmentation / computer-aided diagnosis / 3D fundus image / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 105, no. 580, MI2005-108, pp. 1-4, Jan. 2006. |
| Paper # |
MI2005-108 |
| Date of Issue |
2006-01-21 (MI) |
| ISSN |
Print edition: ISSN 0913-5685 |
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