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Proceedings Paper

Image of OCT denoising and 3D reconstructing method
Author(s): Xue-tao Yan; Jun Yang; Zhi-hai Liu; Li-bo Yuan
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Paper Abstract

Optical coherence tomography (OCT), which is a novel tomography method, is non-contact, noninvasive image of the vivo tomograms, and have characteristic of high resolution and high speed; therefore it becomes an important direction of biomedicine imaging. However, when the OCT system used in specimen, noise and distortion will appear, because the speed of the system is confined, therefore image needs the reconstruction. The article studies OCT 3-D reconstruction method. It cotains denoising, recovering and segmenting, these image preprocessing technology are necessary. This paper studies the high scattering medium, such as specimen of skin, using photons transmiting properties, researches the denoising and recovering algorithm with optical photons model of propagation in biological tissu to remove the speckle of skin image and 3-D reconstrut. It proposes a dynamic average background estimation algorithm based on time-domain estimation method. This method combines the estimation in time-domain with the filter in frequency-domain to remove the noises of image effectively. In addition, it constructs a noise-model for recovering image to avoid longitudinal direction distortion and deep's amplitude distortion and image blurring. By compareing and discussing, this method improves and optimizes algorithms to improve the quality of image. The article optimizes iterative reconstruction algorithm by improving convergent speed, and realizes OCT specimen data's 3-D reconstruction. It opened the door for further analysis and diagnosis of diseases.

Paper Details

Date Published: 8 January 2008
PDF: 7 pages
Proc. SPIE 6826, Optics in Health Care and Biomedical Optics III, 682609 (8 January 2008); doi: 10.1117/12.757373
Show Author Affiliations
Xue-tao Yan, Harbin Engineering Univ. (China)
Jun Yang, Harbin Engineering Univ. (China)
Zhi-hai Liu, Harbin Engineering Univ. (China)
Li-bo Yuan, Harbin Engineering Univ. (China)


Published in SPIE Proceedings Vol. 6826:
Optics in Health Care and Biomedical Optics III
Xingde Li; Qingming Luo; Ying Gu, Editor(s)

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