Method for automatically registering a document having a plurali

Details Method for automatically registering a document having a plurali Method for automatically registering a document having a plurali

1994-01-03

1996-01-09

Boudreau, Leo H.

Image analysis

Image transformation or preprocessing

Changing the image coordinates

395117, G06K 900

Patent

active

054836069

ABSTRACT:
A method for automatically registering documents being copied on an electronic reprographic copier. The registration of the document is based on the actual image content being copied, not the sheet it is on. A first document having original image content is scanned. The original image is processed. A boundary enclosing the original image content of the first document is identified. The boundary is identified by computing a quadratic convex hull of the original image. A second and subsequent documents having image content are scanned and processed. The image content of the second and subsequent documents are positioned within the boundary according to one of the following classes of registration: absolute registration, global fit relative registration or local fit relative registration.

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patent: 5271065 (1993-12-01), Rourke et al.
patent: 5285504 (1994-02-01), Pavlidis et al.

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