Abstract
Many remote sensing systems are undersampled, which traditionally precluded their use with phase diversity algorithms. Phase-diverse phase retrieval (PDPR) algorithms, which assume a point object, have been generalized to deal with the undersampled case by including a number of undersampled, spatially-displaced point source images within the nonlinear optimization. A different approach is presented in which super-resolution is used to generate Nyquist-sampled images prior to phase diversity reconstruction. Experimental results are presented for two PDPR algorithms, but the technique is also extensible to phase diversity imaging.
© 2012 Optical Society of America
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