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题名:
Adaptive optics retinal image registration from scale-invariant feature transform
作者: Li, Hao; Yang, Hansheng; Shi, Guohua; Zhang, Yudong
刊名: OPTIK
出版日期: 2011
卷号: 122, 期号:9, 页码:839-841
关键词: Adaptive optics ; Retina ; Scale-invariant feature transform (SIFT)
文章类型: Article
英文摘要: With the use of adaptive optics(AO), high-resolution microscopic imaging of the living human retina in the single cell level has been achieved. In an AO retinal imaging system, with a small field size (about 1 degrees, 300 mu m) the motion of the eye severely affects the stabilization of the real-time video images results in significant distortions of the retina images. Scale-invariant feature transform (SIFT) algorithm is applied to automatically abstract corner points with subpixel resolution and match the points in two frames. With the matched corner points, we estimate and remove the motions of 20 frames of photoreceptor cells and capillary blood vessels, respectively. The maximal translational motion is about 30 and 44 pixels in the 20 frames whose size is 416 x 416 pixels. More general motions can be considered by the SIFT algorithm, but only simple translational motion can be considered by cross-correlation algorithm. (C) 2010 Elsevier GmbH. 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]: SCANNING LASER OPHTHALMOSCOPY ; COHERENCE TOMOGRAPHY ; RESOLUTION ; EYE
收录类别: SCI
语种: 英语
WOS记录号: WOS:000290696000020
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3418
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: Chinese Acad Sci, Grad Sch, Key Lab Adapt Opt, Inst Opt & Elect, Chengdu 610209, Sichuan, Peoples R China

Recommended Citation:
Li, Hao,Yang, Hansheng,Shi, Guohua,et al. Adaptive optics retinal image registration from scale-invariant feature transform[J]. OPTIK,2011,122(9):839-841.
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