Image analysis – Applications
Reexamination Certificate
2011-03-08
2011-03-08
Ahmed, Samir A (Department: 2624)
Image analysis
Applications
C382S154000
Reexamination Certificate
active
07903840
ABSTRACT:
The present invention provides an image processing method which can search, at high speed, for image coordinates of a pixel corresponding to a position whose three-dimensional position is known, with respect to a line sensor image in which a surface of an object (i.e. the earth) is continuously taken by a line sensor mounted on a flight vehicle. The method includes calculating coordinates transformation information that is transformation information from an image coordinates system to a three-dimensional reference coordinates system for each line of a line sensor image, searching for a line where a distance between a line sensor view for each line that is calculated using flight vehicle three-dimensional coordinates position/speed information and the coordinates transformation information for each line of a line sensor image and a point whose three-dimensional position is known is smallest as the most suitable line corresponding to the point whose three-dimensional position is known on a three-dimensional coordinates, and determining a pixel where a distance between a straight line calculated by using flight vehicle three-dimensional coordinates position/speed information and the coordinates transformation information for each line with respect to each pixel on a line that is searched for as the most suitable line and the point whose three-dimensional position is known is smallest as image coordinates of a pixel on the line sensor image corresponding to the point whose three-dimensional position is known.
REFERENCES:
patent: 4144571 (1979-03-01), Webber
patent: 6389333 (2002-05-01), Hansman et al.
patent: 6422508 (2002-07-01), Barnes
patent: 2003-83745 (2003-03-01), None
Maruya Makoto
Oyama Hiroshi
Ahmed Samir A
NEC Toshiba Space Systems, Ltd.
Rashidian Mehdi
Sughrue & Mion, PLLC
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