Communications: directive radio wave systems and devices (e.g. – Synthetic aperture radar
Reexamination Certificate
2008-05-13
2008-05-13
Sotomayor, John B (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Synthetic aperture radar
C342S02500R, C342S02500R, C342S02500R, C342S195000
Reexamination Certificate
active
07372393
ABSTRACT:
A method converts an input image of noisy wrapped phases to an output image of absolute unwrapped phases. The noisy wrapped phases in the input image are represented as a set of re-wrapped phases and a set of phase shifts. The set of re-wrapped phases are partitioned into a first group and a second group. Integer differences between the phase shifts are optimized while holding the re-wrapped phases fixed. Then, the first group of re-wrapped phases are optimized, while holding the integer differences between the phase shifts, and the second group of re-wrapped phases fixed. The integer differences between the phase shifts are optimized again, while holding the re-wrapped phases fixed. Then, the second group of re-wrapped phases are optimized, while holding the integer differences between the phase shifts, and the first group of re-wrapped phases fixed. The optimizing steps are repeated until the re-wrapped phase converge. Then, the converged re-wrapped phases and integer differences between the phase shifts are output as an output image of absolute unwrapped phases.
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Azarbayejani Ali
Huang Ying-Zong
Martinian Emin
Yedidia Jonathan
Brinkman Dirk
Mitsubishi Electric Research Laboratories Inc.
Mueller Clifton D.
Sotomayor John B
Vinokur Gene V.
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