Automatic selection of a subset of representative pages from...

Details Automatic selection of a subset of representative pages from... Automatic selection of a subset of representative pages from...

2008-02-01

2011-10-11

Lee, Thomas D (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S001180, C707S736000, C707S737000

Reexamination Certificate

active

08035855

ABSTRACT:
What is provided herein is a method for automatically selecting a subset of pages from a multi-page document for image processing wherein each selected page is substantially different from all other pages according to certain features of interest and wherein the combined content of the selected pages approximately represents the content in the entire document. Selected pages are clustered wherein each page is represented by a feature vector meaningfully related to the task to be performed. A matrix of feature vectors is analyzed. Basis vectors are extracted from the matrix using rank-reduction techniques. Clustering is performed by subspace projection of page features onto the basis vectors with each page being assigned to a cluster to which that page maximally projects. Representative pages are selected from each cluster. The representative pages can then be used as input to a secondary process.

REFERENCES:
patent: 5619709 (1997-04-01), Caid et al.
patent: 6560597 (2003-05-01), Dhillon et al.
patent: 7194461 (2007-03-01), Kawatani
patent: 7711679 (2010-05-01), Patterson
patent: 2006/0152748 (2006-07-01), McCarthy et al.
patent: 2007/0146830 (2007-06-01), Eschbach

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