Image analysis – Image enhancement or restoration – Edge or contour enhancement
Reexamination Certificate
2005-05-31
2005-05-31
Ahmed, Samir (Department: 2623)
Image analysis
Image enhancement or restoration
Edge or contour enhancement
C382S199000
Reexamination Certificate
active
06901171
ABSTRACT:
Methods and apparatuses are disclosed for refining groupings of edge points that represent contours in an image. The methods and apparatuses decrease data dispersion and data quantization effects. The methods and apparatuses are particularly useful for accurate and robust detection of straight line-segment features contained in noisy, cluttered imagery occurring in industrial machine vision applications. Additionally, a measurement criterion of the quality of the detected line segments is introduced.
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Dutta-Choudhury Paul
Picard Len L.
Ahmed Samir
Calabresi Tracy
Cognex Technology and Investment Corporation
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