We introduce a method for recovering-phase information inspired by transport of intensity (TIE). Instead of images at multiple planes, we use defocused images at a single plane with multiple wavelengths, obtained using standard Bayer filters.
© 2009 OSA
(100.0100) Image processing : Image processing
(100.5070) Image processing : Phase retrieval
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology
(120.5050) Instrumentation, measurement, and metrology : Phase measurement
L. Waller and G. Barbastathis, "Phase from Defocused Color Images," in Frontiers in Optics 2009/Laser Science XXV/Fall 2009 OSA Optics & Photonics Technical Digest, OSA Technical Digest (CD) (Optical Society of America, 2009), paper FThR3.
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