MRI image fusion method based on Laplacian pyramid transformation applied to medical treatment, and MRI equipment

Abstract

The invention relates to an MRI image fusion method based on Laplace pyramid transformation and MRI equipment. The MRI image fusion method comprises the following steps: S1, for the features of a brain MRI image, decomposing a plurality of source images by using Laplace pyramid decomposition to obtain different frequency layers, and adopting different fusion rules in the different frequency layersso as to reserve feature information of each source image in the different frequency layers in a fused image; S2, respectively calculating the regional mean value of the top layer and the point sharpness of other layers to serve as fusion scales; S3, performing normalization processing on the regional mean value and the point definition; S4, comparing the normalized region mean value and point definition value of each layer of different source images, and obtaining a fusion result of each layer of images by adopting different fusion strategies; and S5, for each layer of the Laplace pyramid ofthe obtained fusion image, performing recursion downwards layer by layer from the top layer, and finally obtaining the fusion image. By adopting the MRI image fusion method, the multi-focus fusion image with low noise and clear edge can be obtained.

Description

technical field [0001] The invention relates to the technical field of MRI image acquisition and medical image processing, in particular to a multi-source fusion method of MRI brain images and MRI equipment. Background technique [0002] Magnetic resonance imaging (MRI) technology is an imaging technology that uses the nucleus in the human body to resonate with an external RF magnetic field in a magnetic field to generate images. MRI is a new type of medical digital imaging technology developed with the rapid development of computer technology and the clinical application of X-ray CT. Because it can display morphological structure and biochemical information at the nuclear level, it can also display the functional status of certain organs, and has many advantages such as no radiation and high imaging accuracy. It has been increasingly used in clinical diagnosis and treatment of various systems. [0003] In the prior art, the receiving coil in the MRI equipment adopts a fix...

AI Technical Summary

Problems solved by technology

However, the cost of fusion equipment on the same machine is very expensive, and it is not easy to popularize due to high fees, and its clinical application is limited

The existing two-dimensional fusion of CT and MR images on the same machine, although the image is more realistic, lacks stereoscopic visual effects, and scanning occurs simultaneously on the same imaging device, which is very expensive and limited in clinical application

The cost of different machine fusion is relatively low, and it has a broad application space, but its registration effect is not good, and the accuracy of the obtained stereo fusion image is not high.

Images