Image enhancement methods for a customized videokeratography system designed for animals with small eyes
文献类型：会议论文
| 作者 | Chen, Bin; Ling, Shan; Cen, Hongfei; Xu, Wenfu; Chea-Su, Kee; Zhou, Yongjin; Wang, Lei |
| 出版日期 | 2013 |
| 会议名称 | 5th International Symposium on IT in Medicine and Education, ITME 2013 |
| 会议地点 | Xining, China |
| 英文摘要 | We built a Placido's disc videokeratographic system intended for eye examination of small animals. To derive the corneal topology and other corneal biometric parameters we rely on precise extraction of Placido ring patterns. However, since the images from CCD are noisy, image enhancement is necessary as a pre-processing procedure in order to prevent further noise magnification during the corneal surface topography reconstruction. In this study, two popular image enhancement methods, namely Gabor Filtering (GF) and Multiscale Vessel Enhancement Filtering (MVEF), are quantitatively evaluated in the context of image enhancement before corneal reconstruction. The two methods were tested on 21 images of steel balls with different diameters. Both methods have been demonstrated to be useful for Placido ring extraction; however, the GF method showed better performance on images of steel balls with smaller diameter. Compared to the GF method, the MVEF method performed better on images of steel balls with larger diameter. The result of the present work implies that the two methods should be used cooperatively. |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/5003]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | 2013 |
| 推荐引用方式 GB/T 7714 | Chen, Bin,Ling, Shan,Cen, Hongfei,et al. Image enhancement methods for a customized videokeratography system designed for animals with small eyes[C]. 见:5th International Symposium on IT in Medicine and Education, ITME 2013. Xining, China. |
入库方式： OAI收割
来源：深圳先进技术研究院
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