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OCT image correction method and system for SS-OCT surgical navigation system

A technology of surgical navigation and image correction, applied in image enhancement, image analysis, image data processing, etc., to achieve the effect of visualizing OCT images and eliminating image distortion

Pending Publication Date: 2021-06-22
SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the clinical use of SS-OCT, only distortion correction for tissue imaging cannot meet the needs of doctors. Doctors need to continuously perform real-time imaging of the lesion position during the operation. Too much distortion or even occlusion, which has a serious impact on the location of the lesion, the observation of adjacent tissues, and the implementation of surgery

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  • OCT image correction method and system for SS-OCT surgical navigation system
  • OCT image correction method and system for SS-OCT surgical navigation system
  • OCT image correction method and system for SS-OCT surgical navigation system

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Embodiment 1

[0039] refer to figure 1 , a kind of OCT image correction method that is used for SS-OCT surgical navigation system of the present embodiment, comprises the following steps:

[0040] S1. For the distorted OCT image collected in the SS-OCT surgical navigation system, the target area in the OCT image is divided into three parts according to the relative position of the scalpel and the tissue structure, which are recorded as area Ⅰ, area Ⅱ and area Ⅲ;

[0041] Wherein, there is vertical distortion in the area I, and the area I, area II, and area III are sequentially connected along the transverse direction, and the scalpel used in the SS-OCT surgical navigation system includes a handle and a handle connected to the handle. The knife head has a knife tip; in this embodiment, a man-made gemstone scalpel is selected, and the tissue structure under the scalpel is clearly visible, and the OCT image distortion caused by refraction and scattering effects is small. In this embodiment, t...

Embodiment 2

[0066] This embodiment provides an OCT image correction system for an SS-OCT surgical navigation system, which uses the method in Embodiment 1 to correct the distorted OCT image obtained by the SS-OCT surgical navigation system.

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Abstract

The invention discloses an OCT image correction method and system for an SS-OCT surgical navigation system. The method comprises the following steps: 1) for a distorted OCT image, segmenting a target region in the OCT image into three parts according to the relative position of a scalpel and a tissue structure, and recording the three parts as a region I, a region II and a region III; 2) correcting the vertical distortion of the region I; 3) correcting the distortion of the region II; and 4) taking the region III as a reference, and obtaining a corrected OCT image without processing. According to the method, a reference point is set according to the position relation between the scalpel and the tissue structure in the operation, the OCT image is subjected to region division by using the reference point, and then distortion correction is performed in a targeted manner according to the characteristics of each region, so that image distortion caused by refraction and scattering effects in the operation process is effectively eliminated, the OCT image is more visual and vivid, and great convenience is brought to positioning of a focus, observation of adjacent tissues and implementation of an operation.

Description

technical field [0001] The invention relates to the field, in particular to an OCT image correction method and system for an SS-OCT surgical navigation system. Background technique [0002] Optical coherence tomography (OCT), as a non-contact tomographic imaging technology, has the characteristics of high resolution and high sensitivity, and has been widely used in medical imaging. At present, OCT technology is mostly used in ophthalmic imaging. It can not only display macroscopic structures such as cornea, iris, and sclera, but also provide images of microscopic structures such as trabecular meshwork, optic chiasm, and Schlemm's canal. It has become an important tool in the diagnosis and treatment of ophthalmic diseases. important auxiliary means. According to the OCT two-dimensional image collected before the operation, the doctor can plan the operation path, judge the tissue lesion, navigate the operation in real time, and evaluate the operation effect, which reduces the...

Claims

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Application Information

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IPC IPC(8): G06T7/00G06T7/187G06K9/36G06K9/32
CPCG06T7/0012G06T7/187G06T2207/10101G06T2207/20104G06V10/25G06V10/247G06V10/20
Inventor 唐宁樊金宇邢利娜史国华
Owner SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
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