17 September 2014 A novel method for speckle reduction in optical coherence tomography by image registration
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Proceedings Volume 9230, Twelfth International Conference on Photonics and Imaging in Biology and Medicine (PIBM 2014); 92301Y (2014) https://doi.org/10.1117/12.2068846
Event: Twelfth International Conference on Photonics and Imaging in Biology and Medicine (PIBM 2014), 2014, Wuhan, China
Abstract
Speckle noise is a key factor that can influence the image quality of optical coherence tomography (OCT). The averaging of multiple B-scans can effectively suppress the speckle noise. Because of the sample motion, the images have to be exactly aligned before averaging. In this paper, we propose a new method for OCT image registration that combines global and local registration. The method is able to align the large global displacements in axial and lateral directions, as well as local displacements caused by non-linear deformation between images. Compared with other OCT image registration methods, our method improves the signal-to-noise ratio and contrast-to-noise ratio.
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Hang Zhang, Hang Zhang, Zhongliang Li, Zhongliang Li, Xiangzhao Wang, Xiangzhao Wang, Nan Nan, Nan Nan, Xuan Wang, Xuan Wang, } "A novel method for speckle reduction in optical coherence tomography by image registration ", Proc. SPIE 9230, Twelfth International Conference on Photonics and Imaging in Biology and Medicine (PIBM 2014), 92301Y (17 September 2014); doi: 10.1117/12.2068846; https://doi.org/10.1117/12.2068846
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