Computational and Mathematical Methods in Medicine / 2013 / Article / Fig 1

Research Article

Improving the Convergence Rate in Affine Registration of PET and SPECT Brain Images Using Histogram Equalization

Figure 1

Left image: original MRI brain transaxial image. (a) Balanced diagonal elements result in global rescaling. (b) Unbalanced diagonal elements produce anisotropic rescaling along the -axis. (c) Unbalanced diagonal elements produce anisotropic rescaling along the -axis. (d) Specific balanced relations between off-diagonal elements in the matrix produce rotations. (e) An unbalance change in the off-diagonal elements resulting in shears along one of the two axes.
760903.fig.001

We are committed to sharing findings related to COVID-19 as quickly as possible. We will be providing unlimited waivers of publication charges for accepted research articles as well as case reports and case series related to COVID-19. Review articles are excluded from this waiver policy. Sign up here as a reviewer to help fast-track new submissions.