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:
May. 05, 1987
Filed:
May. 23, 1985
John A Weldy, Rochester, NY (US);
Stephen H Kristy, Fairport, NY (US);
Eastman Kodak Company, Rochester, NY (US);
Abstract
A single sensor video camera includes an optical blurring filter having a known spatial (or frequency) function and a color filter interposed between the blurring filter and an image sensor. The color filter has red and blue filter elements intermingled among a majority of green elements. An accurate estimate of the blurred green light blocked by the non-green elements is recovered by applying the image signal from the sensor to a digital filter and substituting the resultant signal for the missing green portions. The coefficients of the filter are selected in an optimization process that seeks to match the known function of the blurring filter to a like function of the digital filter (as represented by the coefficients). To do this the color filter must be configured to provide at least two green samples on either side of a non-green element.