Extraction of a scene structure based on gradient runs analysis

Image analysis – Pattern recognition – Feature extraction

Reexamination Certificate

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Reexamination Certificate

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07149354

ABSTRACT:
A method of extracting a scene structure includes determining a plurality of image edges in an image, based on image gradients. A redundant edge is eliminated from the plurality of image edges. The plurality of image edges is linked into a planar graph. A broken edge is restored by a forced extension.

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G. A. Baxes, Digital Image Processing: Principles and Applications. New York: Wiley, 1994. pp. 93-98, 134-135.

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