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IMAGE QUALITY RATING SYSTEM

  • US 3,788,749 A
  • Filed: 03/13/1972
  • Issued: 01/29/1974
  • Est. Priority Date: 03/13/1972
  • Status: Expired due to Term
First Claim
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1. A system for automatically determining the quality of a light image comprising, a first lens means to which said light image is applied for establishing a diffraction pattern of said light image at the filter plane, photo-conductive detector means for establishing a pattern of voltages representative of the spectral energy distribution in the light diffraction pattern applied thereto, a second lens means for applying the diffraction pattern produced by said first lens means to said photoconductive detector means, a plurality of deblurring filters, means for successively placing each of said plurality of deblurring filters at the focal plane of said first lens means for deblurring the light image which has passed through said first said lens means, computer means including, means for successively storing the voltage patterns produced by said photoconductive detector means in response to the successive light diffraction patterns applied thereto without a deblurring filter and with the successive interposition of each of the plurality of the deblurring filters, means for comparing the pattern of voltages stored without a deblurring filter with each of the patterns of voltages stored when a deblurring filter is used for determining whether or not the quality of the light image is improved by any of the deblurring filters and which one, and means responsive to the determination of said means for comparing to produce an indication thereof.

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