Methods and apparatuses for finding rectangles and...

Data processing: presentation processing of document – operator i – Presentation processing of document – Spreadsheet

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C715S220000, C715S227000, C715S228000, C715S235000

Reexamination Certificate

active

07739587

ABSTRACT:
In a method for identifying cells, line graphics are converted into vectors (12) having a canonical form without vector overlaps or crossings. Connecting vectors (22, 24, 26, 30, 32) are associated, including (i) forking vectors (22) having common starting points, and (ii) meeting vectors (24) having common ending points. A set of vectors is identified including at least two forking vectors and two meeting vectors cooperatively defining a cell.

REFERENCES:
patent: 5577249 (1996-11-01), Califano
patent: 6006240 (1999-12-01), Handley
patent: 6801673 (2004-10-01), Chao et al.
patent: 7472114 (2008-12-01), Rowney et al.
patent: 2004/0006742 (2004-01-01), Slocombe
patent: 2006/0265649 (2006-11-01), Danilo
Rigamonit, M Bloechle, JL, Hadjar,K, Lalanne, D, Ingold R; “Towards a Canonical and Structured Representation of PDF Documents through Reverse Engineering” Document Analysis and Recoginition 2005 Proceeding Eight Internation Conference; Publication Date Aug. 29-Sep. 1, 2005.
“Hash Table,” Wikipedia, pp. 1-10, at http://en.wikipedia.org/wiki/Hash—table, last visited on Feb. 15, 2006.
Garcia et al., “Using a Generic Document Recognition Method for Mathematical Formulae Recognition,” inSelected Papers From the Fourth International Workshop on Graphics Recognition Algorithms and Applicationspp. 236-244, 2002.
Rigamonti et al., “Towards a Canonical and Structured Representation of PDF Documents Through Reverse Engineering,” In proc. of 8thInternational conference on Document Analysis and Recognition, Seoul (Korea), pp. 1050-1054, 2005.
Avis et al., “An Efficient Algorithm for Decomposing a Polygon into Star-Shaped Polygons,”Pattern Recognition, vol. 13, No. 6, pp. 395-398, 1981.
U.S. Appl. No. 11/312,267, filed Dec. 20, 2005, Vion-Dury.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Methods and apparatuses for finding rectangles and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods and apparatuses for finding rectangles and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and apparatuses for finding rectangles and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4243188

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.