Fig. 7
From: Multi-contrast brain magnetic resonance image super-resolution using the local weight similarity
Error of regression weights on real MRI images. Weights are estimated within each pair of regions at multi-contrast images. The vertical axis represents the percentage that estimation values lies in the range of the horizontal axis. a-c list the frequency that \( {\left\Vert {\tilde{\mathbf{X}}}^{+}\left(\mathbf{y}-\mathbf{X}\mathbf{b}\right)\right\Vert}_2 \), \( {\left\Vert {\tilde{\mathbf{X}}}^{+}\left(\mathbf{d}-\mathbf{C}\mathbf{b}\right)\right\Vert}_2 \) and \( {\left\Vert \tilde{\mathbf{b}}-\mathbf{b}\right\Vert}_2 \) occurs in the range of the horizontal axis in (a-c), respectively