MARK JOHN HUFE
Pilots at Hidden Vly Dr, Newark, DE
License number
Delaware A2559541
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
28 Hidden Valley Dr, Newark, DE 19711
Professional information
Digital Image Orientation Marker
US Patent:
6354737, Mar 12, 2002
Filed:
Nov 12, 1999
Appl. No.:
09/438606
Inventors:
Mark J. Hufe - Newark DE
David Paul Wolff - Newark DE
Chuande Liu - Hockessin DE
David Paul Wolff - Newark DE
Chuande Liu - Hockessin DE
Assignee:
Direct Radiography Corp. - Newark DE
International Classification:
H05G 128
US Classification:
378205, 378163, 378164, 378165, 23546201
Abstract:
An orientation marker for a digital radiogram formed by a plurality of pixels arrayed along a plurality of rows and columns. The pixels have densities which represent the radiogram optical density at each pixel point, and the densities are represented by digital values. The marker is made by a number of marker pixels arrayed along at least one row and one column of the radiogram. Each of the pixels forming the marker, have a marker pixel digital value which has been selected to form an asymmetrical marker pixel pattern on the radiogram, replacing the original radiogram pixel values.