Abstract: A method is provided for enhancing two-dimensional contrast and range images rendered from three-dimensional STIL data. A series of sequential steps are provided for each of the rendered contrast image data and rendered range image data. Briefly, the rendered contrast image data is scaled based on a mean intensity value of all pixels of data therein, stretched to a predetermined dynamic range, modified to compensate for jitter and CCD array effects associated with the STIL camera system, normalized using an exponential decay function that describes contrast intensity roll-off associated therewith, and has a histogram clip routine applied thereto.
Type:
Grant
Filed:
June 26, 2003
Date of Patent:
April 10, 2007
Assignee:
The United States of America as represented by the Secretary of the Navy
Inventors:
Andrew J. Nevis, James F. Bryan, Brett W. Cordes, James S. Taylor, Mary C. Hulgan