Stripe motion artifact suppression in phase-resolved OCT blood flow images of the human eye based on the frequency rejection filter

被引：13
|
作者：
Liu, Guozhong [1 ]
Wang, Ruikang [2 ]
机构：
[1] Beijing Informat Sci & Technol Univ, Sch Instrument Sci & Optoelect Engn, Beijing 100192, Peoples R China
[2] Univ Washington, Dept Bioengn, Seattle, WA 98195 USA
来源：
CHINESE OPTICS LETTERS | 2013年 / 11卷 / 03期
基金：
中国国家自然科学基金;
关键词：
OPTICAL COHERENCE TOMOGRAPHY; SENSITIVITY; ANGIOGRAPHY;
D O I：
10.3788/COL201311.031701
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Stripe motion artifacts caused by phase fluctuation in phase-resolved optical coherence tomography (OCT) result in the quality degradation of the image of in vivo blood flow of human eye. In order to suppress the stripe motion artifacts, we design a kind of frequency rejection filter aimed at the frequency spectrum characteristics of the image. Blood flow images of human eye acquired by our research group and another group are filtered to show the performance of the proposed method. Experimental results indicate that the stripe motion artifacts in the projection images are rejected significantly with minimal loss of signal information. The proposed filter can also be used in other imaging systems with similar stripe noise.
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页数：5
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