Magnetic resonance image-based bone segmentation method and system thereof

A technology of magnetic resonance images and bones, applied in the field of medical images, which can solve problems such as inconvenience

Inactive Publication Date: 2014-06-18
SHENZHEN YORATAL DMIT +1
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[0007] In summary, the existing bone segmentation technology based on magnetic resonance...

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  • Magnetic resonance image-based bone segmentation method and system thereof
  • Magnetic resonance image-based bone segmentation method and system thereof
  • Magnetic resonance image-based bone segmentation method and system thereof

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[0058] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0059] see figure 1 In the first embodiment of the present invention, a system 100 for bone segmentation based on magnetic resonance images is provided, and the system 100 for bone segmentation based on magnetic resonance images includes:

[0060] Calculation module 10, for calculating the Hessian (Hans) matrix and eigenvalues ​​of each pixel in the first magnetic resonance image;

[0061] An extraction module 20, configured to extract the sheet-like structure in the first magnetic resonance image, and perform grayscale enhancement on the sheet-like structure in the first magnetic resonance image,...

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Abstract

The invention is suitable for the field of the medical image technology, and provides a magnetic resonance image-based bone segmentation method and a system thereof. The method comprises the following steps: calculating step: calculating the Hessian matrix of each pixel and a characteristic value thereof in a first magnetic resonance image; extracting step: extracting the flake structure of the first magnetic resonance image and performing gray level enhancement on the flake structure of the first magnetic resonance image to obtain a second magnetic resonance image; optimization step: performing threshold connected calculation on the second magnetic resonance image, extracting a bone contour of the second magnetic resonance image, and carrying out smooth optimization to obtain a bone contour segmentation result of the second magnetic resonance image. Therefore by applying the magnetic resonance image-based bone segmentation method and the system thereof, a bone needing to be segmented is completely and independently segmented from the magnetic resonance image.

Description

technical field [0001] The invention relates to the technical field of medical images, in particular to a method and system for bone segmentation based on magnetic resonance images. Background technique [0002] Bones are the most important supporting and moving structures of the human body. Bones are mainly composed of three parts: bone, bone marrow, and periosteum. There are abundant blood vessels, nerves, and soft tissues around the bones. When performing bone segmentation, it is often necessary to separate each bone separately and not adhere to the blood vessels, nerves, and soft tissues around the bones. [0003] MRI (Magnetic Resonance Imaging, nuclear magnetic resonance imaging) is a tomographic imaging technology that reconstructs human body information by obtaining electromagnetic signals from the human body. Today, with the rapid development of digital imaging technology, MRI is increasingly used in medical procedures , has become one of the essential technologies...

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Application Information

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IPC IPC(8): G06T7/00A61B5/055
Inventor 叶建平王大平张吉帅尤微田毅
Owner SHENZHEN YORATAL DMIT
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