Extended Data Figure 7. Diagram for the patch-by-patch refinement.
(A) Input density maps and GMMs from the global orientation refinement. (B) Scatter plot of Gaussian coordinates, colored by clustering result. (C) Soft masks for each cluster. Each mask is a sphere covering all Gaussian coordinates of the corresponding cluster, with a soft falloff. (D) Focused refinement results using the soft masks, colored by local resolution. Note that the same refinement process is done independently for the even/odd subsets of particles using the corresponding half map/GMM as reference. (E) Masked out density from the individual focused refinement result. (F) Final composite map generated by weighted averaging.