Multimodal Image Alignment via Linear Mapping between Feature Modalities

Figure 3

Mean distance (in pixels as shown by the Y-axis) between manually marked points and results of the algorithms based on mutual information [19], the robust measurement [4] and our linear mapping, respectively. Gaussian noise with zero mean and variances of 0, 0.01, 0.02, 0.04, and 0.08 are added in the images, respectively, as shown by the X-axis.