The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 14, 1993
Filed:
Mar. 24, 1992
Robert W Klatt, Rancho Palos Verdes, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
Image restoration methods and systems include a comparison of the outputs of two or more adjacent detector element channels in order to determine the relative responsivities or conversion gains of these channels and to adjust the conversion gains of the two channels to make them substantially equal. These methods include determining the variance for each individual channel's output, and the covariance for each pair of adjacent channel outputs; comparing the values to determine if differences in the variances result from differences in radiant input signals to the channels or from differences in the conversion gains of the channels; and adjusting the conversion gains of the channels as necessary until they are substantially equal.