Trigeminal nerve region segmentation method based on MRI (Magnetic Resonance Imaging)

The invention relates to the technical field of image processing, in particular to an MRI (Magnetic Resonance Imaging)-based trigeminal nerve region segmentation method, which comprises the following steps: acquiring a brain nuclear magnetic resonance image; obtaining block regions containing trigeminal nerves; obtaining a plurality of initial edges according to gray difference and gradient difference of pixel points in the block areas; obtaining a plurality of edges of the trigeminal nerve region according to the possibility that the pixel points in the initial edge serve as edge pixel points and the chain code values of the pixel points; according to the possibility that pixel points in the first neighborhood region and the second neighborhood region of the edge serve as edge pixel points, enhancement coefficients of the block regions are obtained; an enhanced block area is obtained; and performing threshold segmentation on the enhanced block region to obtain a trigeminal nerve region of the patient. Accord