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Head MRI image skull peeling module

A head and image technology, applied in the medical field, can solve problems such as increasing the amount of image processing calculations

Active Publication Date: 2017-12-05
GUANGZHOU WISEFLY INFORMATION SYST TECH CO LTD
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Problems solved by technology

[0003] In various image processing (such as subcortical structure partitioning, recognition of brain space-occupying lesions, etc.), the existence of the skull may have a certain impact on the recognition of brain tissue, and the presence of the skull will increase the quality of various image processing. amount of computation

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Embodiment Construction

[0014] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0015] A head MRI image skull stripping module according to the present invention, the key point is the use of Canny operator and Otsu algorithm, Canny operator is a kind of edge detection operator, used for edge detection and edge connection; and Otsu algorithm is for image binarization. Calculate the ratio of the number of border pixels obtained by the Canny operator to the number of pixels in the original area. If the ratio is less than the preset ...

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Abstract

The invention discloses a head MRI image skull peeling module. The head MRI image skull peeling module comprises an anisotropy diffusion filtering unit, an Otsu binary unit, a Canny edge detection unit and an image segmentation unit, wherein the anisotropy diffusion filtering unit is used for receiving head MRI images and carrying out smooth image filtering, and image edges are kept during image smoothing; the Otsu binary unit is used for carrying out binary segmentation of a smooth image through Otsu calculation, and a binary image is acquired; the Canny edge detection unit is utilized for carrying out canny operator operation to draft all contour lines of the smooth image to generate a contour image; the image segmentation unit is used for calculating ratios of pixel points of each contour line of the contour image to an area of the binary image, whether corresponding areas of an original image are eliminated is determined according to the ratios, so skull peeling from the head MRI image is carried out, and micro noise is further eliminated. The head MRI image skull peeling module is advantaged in that image processing accuracy is improved, and image processing calculation mount is further reduced.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a head MRI image skull stripping module. Background technique [0002] The imaging principle of MRI is that the relaxation time of the hydrogen nuclei in different tissues is different after being excited and then returns to the ground state. According to the detected electromagnetic pulse, the back projection method is used to reconstruct the internal image of the human tissue. Due to the large difference between bone tissue and other tissues in the human body, the calculated CT value is also quite different from other tissues, which is manifested in the image that the gray value is quite different from other tissues. [0003] In various image processing (such as subcortical structure partitioning, recognition of brain space-occupying lesions, etc.), the existence of the skull may have a certain impact on the recognition of brain tissue, and the presence of the skull will incre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/11G06T7/13G06T7/136G06T7/194
CPCG06T7/11G06T7/13G06T7/136G06T7/194G06T2207/10088G06T2207/30008
Inventor 吴波邝洋辉邓俊文
Owner GUANGZHOU WISEFLY INFORMATION SYST TECH CO LTD
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