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Compression method and device for optical coherence tomography three-dimensional data

A technology of optical coherence tomography and three-dimensional data, which is applied in the field of three-dimensional data compression of optical coherence tomography to achieve the effect of relieving data storage pressure and achieving obvious effects.

Pending Publication Date: 2021-02-09
FOSHAN UNIVERSITY
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Problems solved by technology

[0008] The purpose of the present invention is to propose a compression method and device for optical coherence tomography three-dimensional data, to solve one or more technical problems existing in the prior art, and at least provide a beneficial choice or create conditions

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  • Compression method and device for optical coherence tomography three-dimensional data
  • Compression method and device for optical coherence tomography three-dimensional data

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[0032] The idea, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, scheme and effect of the present invention. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0033] figure 1 Shown is a flow chart of a compression method for optical coherence tomography three-dimensional data, combined below figure 1 A method according to an embodiment of the present invention will be described.

[0034] The present invention proposes a method for compressing three-dimensional data of optical coherence tomography, which specifically includes the following steps:

[0035] Use OCT (SD-OCT, SS-OCT and various OCT system improvements) equipment to image the sample to obtain the three-dimensional information data of t...

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Abstract

The invention discloses a compression method and device for optical coherence tomography three-dimensional data, and the method comprises the steps: selecting a threshold value according to an A-lineamplitude graph, judging the initial points of A-line in a B-frame image, sequentially connecting the initial points to obtain an initial line, and taking the initial line as the initial line of a sample in the B-frame image; downwards intercepting data with a proper depth to serve as useful information; and on the premise that useful information of the sample is stored as much as possible, effectively compressing three-dimensional data with a large data size. Initial line information of a sample can be simply and efficiently obtained in each Aline amplitude signal through a threshold selection method, and useful information data of the sample is saved and the data storage pressure of high-throughput OCT is relieved by downwards intercepting data with a certain depth; when OCT equipment isused for imaging a sample, the larger the axial imaging range is, the larger the compression ratio is, and the more obvious the effect is.

Description

technical field [0001] The invention relates to the field of optical coherence tomography, in particular to a method and device for compressing three-dimensional data of optical coherence tomography. Background technique [0002] Optical coherence tomography (OCT) is an emerging non-invasive optical detection technology that can provide high-resolution cross-sectional images of biological tissues such as the retina and skin. The basic structure of OCT is a low-coherence interferometer, that is, the broadband light source is divided into two parts: reference light and sample light. When the reflected reference light and the backscattered light of different layers of the sample are coherently superimposed, an optical interference signal will be generated. The coherence length of the light source used in the OCT system is usually very small, about 10 microns, so it can provide high-resolution biological tissue information. There are two main types of OCT techniques: time domai...

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Application Information

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IPC IPC(8): G06T9/00G06T11/00G06T19/20
CPCG06T9/00G06T11/003G06T19/20
Inventor 许景江袁钘韦赢兆别佳奇
Owner FOSHAN UNIVERSITY
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