Finding the Discrepancy of MRI images using the Second Moment and Geometric Comparison Techniques

This research investigates the technique of image subtraction to find the discrepancy between healthy and illness MRI images. The technique developed in this research moves the healthy MRI image to overlap with the illness MRI image. Then, the two MRI images are aligned to the same orientation. After the healthy MRI image is overlapped with the illness MRI image, the illness MRI image is subtracted from the healthy MRI image. If there is discrepancy in the illness MRI image after the image subtraction, the discrepancy will remain in the subtracted result. The machine does the entire inspection automatically. There is no further human effort involved. The technique developed in this research can accurately find the discrepancy between healthy and illness images. This paper explains the method using the second moment to find the orientations of the MRI images. Using the orientations of the MRI images, the healthy MRI image and the illness MRI image can be aligned to the same orientation. The detailed process of image rotation is addressed in this paper.