Patent · US Expired

Arrangement for the segmentation of lines

US4731858A · kind A · utility

49Cited by

3References

6Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Hans-Horst Grasmueller · Fürstenfeldbruck, DE
Wilhelm Beutel · Munich, DE
Karl Hohberger · Feldkirchen-Westerham, DE
Paul Koellensperger · Munich, DE
Anna Reischl · Munich, DE
Peter Rummel · Festenbach, DE

Key dates

Filing date	Apr 24, 1985
Grant date	Mar 15, 1988
Priority date	—
Expiry date	Apr 24, 2005

Classification

Technology area (CPC G)Physics
CPC primaryG06V10/469
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A coarse or rough segmentation apparatus has been developed for use in a sensor system for analyzing half-tone images. In contrast with previously employed methods, the apparatus is based on the pipeline principle. In the image picked up by the camera, edges of an object are represented in the form of a sequence of points of high contrast as compared with the surroundings. These edges are initially sought out and tracked by so-called edge tracking. Subsequently, in a rough or coarse segmentation, this line is divided into as large as possible contiguous pieces or sections of equal curvature and pieces or sections with a strong directional change.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.