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...http://www.google.es/patents/US5081689?utm_source=gb-gplus-sharePatente US5081689 - Apparatus and method for extracting edges and lines
Apparatus and method for extracting edges and lines
