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:
Jul. 07, 1998
Filed:
Jun. 19, 1996
Stephen Vincent Kowalski, Rancho Palos Verdes, CA (US);
Northrop Grumman Corporation, Los Angeles, CA (US);
Abstract
The present invention is an adaptive luminance filter for filtering digital images. The present invention preserves annotation that is overlaid on a natural image background. Non-color specific filtering is used to preserve the clarity of the annotation. Images processed with the filter of the present invention are smoothed to varying degrees at each point in the image, depending on the luminance of the picture elements in the surrounding area. As a result, non-annotation areas are smoothed and annotation areas are left unfiltered. This allows higher than normal image quality to be produced and also allows the images to be compressed with greater efficiency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile