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:
Dec. 06, 2005
Filed:
Apr. 25, 2001
Timothy Alderson, Winter Spring, FL (US);
Gene D. Tener, Oviedo, FL (US);
Valete C. Hopkins, Winter Spring, FL (US);
Charlie W. Stuart, Orlando, FL (US);
Chinh X. Nguyen, Oviedo, FL (US);
Timothy Alderson, Winter Spring, FL (US);
Gene D. Tener, Oviedo, FL (US);
Valete C. Hopkins, Winter Spring, FL (US);
Charlie W. Stuart, Orlando, FL (US);
Chinh X. Nguyen, Oviedo, FL (US);
Lockheed Martin Corporation, Bethesda, MD (US);
Abstract
A method and apparatus for processing image data is described, comprising acquiring a frame of image data and compressing the dynamic range of the frame of image data using a dynamic range compression (DRC) algorithm that utilizes down-sampling, median filtering, and up-sampling. The DRC algorithm comprises down-sampling a frame of image data comprising a first array of pixels to generate a second array of pixels, applying a first median filter to the second array of pixels to generate a blurred array of pixels, up-sampling the blurred array of pixels, and removing at least a portion of low-frequency gradient data generated by previous steps from the frame of image data.