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Top: magnitudes of the 4 terms of M̂is(u, v) for the case shown in Fig. 6. The |p(u, v)| term goes to 0 in the NW and SE corners, where measurement in XTrue is shifted in ZMeas. (YTrue in FMeas.) by the r(u, v) term. Bottom: frequency dependent measurement energy ratio of [ZMeas., FMeas.] cumulative energy to total energy. Edge effects are induced by pixel area integration. White pixel: undefined value for piston mode.
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