Improving Retinal Image Quality Using Registration with an SIFT Algorithm in Quasi-Confocal Line Scanning Ophthalmoscope.
文献类型：期刊论文
| 作者 | He, Yi; Wang, Yuanyuan; Wei, Ling; Li, Xiqi; Yang, Jinsheng; Zhang, Yudong |
| 刊名 | Advances in experimental medicine and biology
 |
| 出版日期 | 2017 |
| 卷号 | 977页码:183-190 |
| ISSN号 | 0065-2598 |
| 关键词 | Confocal microscopy Feature extraction Image matching SIFT |
| 英文摘要 | When high-magnification images are taken with a quasi-confocal line scanning ophthalmoscope (LSO), the quality of images always suffers from Gaussian noise, and the signal to noise ratio (SNR) is very low for a safer laser illumination. In addition, motions of the retina severely affect the stabilization of the real-time video resulting in significant distortions or warped images. We describe a scale-invariant feature transform (SIFT) algorithm to automatically abstract corner points with subpixel resolution and match these points in sequential images using an affine transformation. Once n images are aligned and averaged, the noise level drops by a factor of [Formula: see text] and the image quality is improved. The improvement of image quality is independent of the acquisition method as long as the image is not warped, particularly severely during confocal scanning. Consequently, even better results can be expected by implementing this image processing technique on higher resolution images. |
| 语种 | 英语 |
| 源URL | [http://ir.ioe.ac.cn/handle/181551/8768]  |
| 专题 | 光电技术研究所_自适应光学技术研究室（八室） |
| 作者单位 | The Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu, 610209, China. heyi_job@126.com. |
| 推荐引用方式 GB/T 7714 | He, Yi,Wang, Yuanyuan,Wei, Ling,et al. Improving Retinal Image Quality Using Registration with an SIFT Algorithm in Quasi-Confocal Line Scanning Ophthalmoscope.[J]. Advances in experimental medicine and biology,2017,977:183-190. |
| APA | He, Yi,Wang, Yuanyuan,Wei, Ling,Li, Xiqi,Yang, Jinsheng,&Zhang, Yudong.(2017).Improving Retinal Image Quality Using Registration with an SIFT Algorithm in Quasi-Confocal Line Scanning Ophthalmoscope..Advances in experimental medicine and biology,977,183-190. |
| MLA | He, Yi,et al."Improving Retinal Image Quality Using Registration with an SIFT Algorithm in Quasi-Confocal Line Scanning Ophthalmoscope.".Advances in experimental medicine and biology 977(2017):183-190. |
入库方式： OAI收割
来源：光电技术研究所
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