Artifact removal from phase encoded images

Details Artifact removal from phase encoded images Artifact removal from phase encoded images

2011-06-14

2011-06-14

Kassa, Yosef (Department: 2624)

Image analysis

Image enhancement or restoration

Focus measuring or adjusting

C382S260000, C382S274000, C382S275000, C358S003260, C358S003270, C358S463000

Reexamination Certificate

active

07961969

ABSTRACT:
PSF coding has become well known in recent years. Although it enables significant increases in the depth of field, defocus introduces artifacts in images that are a major detraction from the final image quality. A method is described that enables the deduction or defocus and consequently the removal of these artifacts. The principle of the disclosed techniques involves iteratively adjusting the restoration algorithm according to a chosen image metric and choosing the defocus parameter that yields the image the lowest level of artifact.

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