Gerät und Verfahren zum Bestimmen von Konturen und Linien
摘要
An apparatus and method for processing image data to derive edges and line segments. Image intensity data is processed in one dimension along a series of scan lines to produce an intensity curve (10). Pairs of points along a scan line curve (10) representing curvature extrema (20) are checked to determine if the intensity difference between the curvature extrema (20) are characteristic of edges. Edge points are then determined between pairs of curvature extrema. Edge points found between curvature extrema (20) are then correlated with other edge points in previous scan lines to determine if they fall within a range of predicted line segments. Line segment data may then be processed at higher levels to identify objects in the data.
申请公布号
DE69027616(D1)
申请公布日期
1996.08.08
申请号
DE1990627616
申请日期
1990.03.22
申请人
HUGHES AIRCRAFT CO., LOS ANGELES, CALIF., US
发明人
MEYER, ROBERT H., DR., REDONDO BEACH, CA 90245, US;TONG, KEVIN K., E1 MONTE, CA 91732, US