Figure 3
From: How does Poisson kriging compare to the popular BYM model for mapping disease risks?
Semivariogram models used by Poisson kriging for mapping lung and cervix cancer mortality. The experimental semivariogram of the risk (red curve) is estimated from county-level rate data, and its deconvolution yields the point-support model (green curve) required by area-to-area Poisson kriging. The regularization of the point support model yields a curve (blue line) that is very close to the experimental one.