A method and system for constructing clinical brain CT image ROI template
A CT image and image technology, which is applied in the field of medical imaging, can solve the problems of difficult to realize the ROI template production of CT images, and achieve the effect of high registration accuracy and low resolution accuracy.
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Embodiment 1
[0086] The embodiment of the present invention proposes a method for constructing a ROI template of a clinical brain CT image, such as figure 1 As shown, the method includes the following steps:
[0087] Step 110: Obtain the brain CT image I of the same individual in the same state CT_0 and MRI image I MRI_0 .
[0088] CT images and MRI images of the same individual in the same state have similarities in brain functional areas. The acquired CT images and MRI images need to be preprocessed and cropped to the same size. A digital image can be represented by a numerical matrix. The computer usually uses a two-dimensional array to store image data. The elements of the matrix correspond to the pixels of the image, and the value of the matrix element is the gray value of the pixel.
[0089] Step 120, to the MRI image I MRI_0 The ROI template image I of the MRI image is obtained by marking the ROI of the region of interest MRI_ROI , and get the ROI labeled image I ROI .
[00...
Embodiment 2
[0155] Corresponding to the above-mentioned Embodiment 1, the embodiment of the present invention proposes a system for constructing a ROI template of a clinical brain CT image, such as: figure 2 As shown, the system includes:
[0156] The image acquisition module 210 is used to acquire the brain CT image I of the same individual in the same state CT_0 and MRI image I MRI_0 ;
[0157] The image processing module 220 is used for MRI image I MRI_0 The ROI template image I of the MRI image is obtained by marking the ROI of the region of interest MRI_ROI , and get the ROI labeled image I ROI ;
[0158] According to CT image I CT_0 and MRI image I MRI_0 , respectively, to obtain the skull mask map I of the CT image CT_1 and the skull mask of the MRI image I MRI_1 ;
[0159] Brain case mask map I for CT images respectively CT_1 and MRI images of the skull mask I MRI_1 Carry out the skull contour marking, and obtain the skull contour mask M of the CT image CT_1 and MRI ...
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