Image analysis – Applications – 3-d or stereo imaging analysis
Patent
1998-03-05
1999-10-26
Mancuso, Joseph
Image analysis
Applications
3-d or stereo imaging analysis
382113, G06K 900
Patent
active
059741708
ABSTRACT:
A method of detecting relief contours in digital images representing an aerial or satellite view of the ground includes the steps of calculating a digital elevation map from two stereoscopic images of the terrain, extracting crest lines in the digital map, projecting the crest lines into one of the stereoscopic images, calculating contours in the image and deciding that a contour is a relief contour if the distance to the closest projected crest line, in the sense of a particular affinity criterion, is below a particular threshold.
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patent: 5309522 (1994-05-01), Dye
Construction of Intermediate Pictures for a Multiview 3D System, Liu et al., Stereoscopic Displays and Applications III, SPIE vol. 1669, pp. 10-17, 1992.
Min S. Kang et al, "Recovering an Elevation Map by Stereo Modeling of the Aerial Image Sequence", Optical Engineering, vol. 33, No. 11, Nov. 1, 1994, pp. 3793-3802, XP000475122.
I. S. Kweon et al., "Extracting Topographic Terrain Features from Elevation Maps", CVGIP Image Understanding, vol. 59, No. 2, Mar. 1, 1994, pp. 171, 182, XP000439838.
Lechervy Yves
Louis Christian
Alcatel
Bali Vikkram
Mancuso Joseph
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