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Non-iterative method and system for phase retrieval

  • US 20040052426A1
  • Filed: 01/28/2003
  • Published: 03/18/2004
  • Est. Priority Date: 09/12/2002
  • Status: Abandoned Application
First Claim
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1. A method for processing information for an optical system, the method comprising:

  • capturing a first focused image of a first object at a first focal point;

    capturing a plurality of unfocused images of the first object at a plurality of defocus points having a plurality of distances from the first focal point respectively;

    processing at least information associated with the first focused image and information associated with the plurality of unfocused images; and

    determining a wavefront error using the processing based upon at least the information associated with the first focused image and the information associated with the plurality of unfocused images;

    whereupon the processing is free from an iterative process.

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