Image Processing Reference
Figure 2.8 Phase plots of the first 60 Zernike polynomials. The lowest-order polynomials
are in the lower left corner; increases occur in order toward the right.
Figure 2.9 A linear combination of several Zernike polynomials make a single, com-
In most optical systems, piston can be ignored as it represents a constant phase
shift in the pupil. However, piston is important in representing aberrations in an op-