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IOE OpenIR  > 光电技术研究所被WoS收录文章  > 期刊论文
题名:
Real-time blind deconvolution of retinal images in adaptive optics scanning laser ophthalmoscopy
作者: Li, Hao1,2,3; Lu, Jing1,2,3; Shi, Guohua1,2,3; Zhang, Yudong1,2
刊名: OPTICS COMMUNICATIONS
出版日期: 2011-06-15
卷号: 284, 期号:13, 页码:3258-3263
关键词: Adaptive optics scanning laser ophthalmoscopy ; Image recovery ; Incremental Wiener filter ; Graphics processing unit
文章类型: Article
英文摘要: With the use of adaptive optics (AO), the ocular aberrations can be compensated to get high-resolution image of living human retina. However, the wavefront correction is not perfect due to the wavefront measure error and hardware restrictions. Thus, it is necessary to use a deconvolution algorithm to recover the retinal images. In this paper, a blind deconvolution technique called Incremental Wiener filter is used to restore the adaptive optics confocal scanning laser ophthalmoscope (AOSLO) images. The point-spread function (PSF) measured by wavefront sensor is only used as an initial value of our algorithm. We also realize the Incremental Wiener filter on graphics processing unit (GPU) in real-time. When the image size is 512 x 480 pixels, six iterations of our algorithm only spend about 10 ms. Retinal blood vessels as well as cells in retinal images are restored by our algorithm, and the PSFs are also revised. Retinal images with and without adaptive optics are both restored. The results show that Incremental Wiener filter reduces the noises and improve the image quality. (C) 2011 Elsevier B.V. All rights reserved.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
关键词[WOS]: HUMAN EYE
收录类别: SCI
语种: 英语
WOS记录号: WOS:000291179200014
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3419
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, Lab Adapt Opt, Inst Opt & Elect, Chengdu 610209, Peoples R China
2.Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Li, Hao,Lu, Jing,Shi, Guohua,et al. Real-time blind deconvolution of retinal images in adaptive optics scanning laser ophthalmoscopy[J]. OPTICS COMMUNICATIONS,2011,284(13):3258-3263.
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