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Image compression

  • US 7,194,139 B1
  • Filed: 09/05/1999
  • Issued: 03/20/2007
  • Est. Priority Date: 05/19/1999
  • Status: Expired due to Fees
First Claim
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1. A method of data processing, comprising:

  • providing image-data in an image space that encodes light as a spaced-apart discrete input set with dead spaces between all input set elements wherein each element is windowed by a first window function;

    transforming said light from the image space to a transform space utilizing a continuous optical Fourier transforming component; and

    windowing spatially discrete regions in the transform space with a second window function that is related to the first window function by a matching condition so that at least one of intensities and phases of transformed light in the transform space regions are proportional to coefficients of a discrete transform of the input set; and

    detecting data carried by said transformed light at the spatially discrete sampler regions.

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