Line segment detection method
AssigneeIHI Corporation
InventorsShinichirou Sonoda, Hajime Banno, Kentaro Mizouchi
Life of this patent
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Abstract
A line segment detection method includes acquiring an image, extracting from the image a straight line that includes a line segment, acquiring a luminance distribution of the straight line, generating a virtual function model that contains a distribution of a foreground and a background of the image by using the luminance distribution, and determining whether luminance values near end points (start point and end point) of the line segment contained in the virtual function model probabilistically belong to the foreground or the background, and estimating end points (start point and end point) in the virtual function model.
Claims6
A line segment detection method for detecting a line segment from an image, the line segment detection method comprising:
- extracting a straight line from the image that includes the line segment;
- acquiring a luminance distribution of the straight line;
- generating a virtual function model that contains a distribution of a foreground and a background of the image by using the luminance distribution;
- and
- estimating end points in the virtual function model by determining whether luminance values near end points of the line segment contained in the virtual function model probabilistically belong to the foreground or the background.
Dependencies are inferred from the claim text.