Method of separating text and graphs in digital image data

Details Method of separating text and graphs in digital image data Method of separating text and graphs in digital image data

2007-12-25

2007-12-25

Bella, Matthew C. (Department: 2624)

Image analysis

Image segmentation

Distinguishing text from other regions

C382S164000, C382S180000, C358S462000, C358S538000

Reexamination Certificate

active

11057155

ABSTRACT:
A method of separating text and graphs in digital image data is used to separate digital image data into graph data and text data. According to a default separating parameter, the digital image data are partitioned into several operating matrices. One then sets a default crossing reference level for comparison analyses to compare adjacent pixel units in each operating matrix. When the digital characteristic value of a pixel unit is greater than the default crossing reference level and the digital characteristic value of its one adjacent pixel unit are smaller the default crossing reference level, the operating matrix is given a weight. Afterwards, all the weights are added up to give a weighted statistical value, which eventually is used to separate the graph data from the text data.

REFERENCES:
patent: 4577235 (1986-03-01), Kannapell et al.
patent: 5379130 (1995-01-01), Wang et al.
patent: 5889885 (1999-03-01), Moed et al.
patent: 6681053 (2004-01-01), Zhu
patent: 6690826 (2004-02-01), Slavin
patent: 6903844 (2005-06-01), Kamiya
patent: 7263223 (2007-08-01), Irwin
patent: 10336441 (1998-12-01), None
Du et al. (“Automated system for text detection in individual video images,” Journal of Electronic Imaging, vol. 12(3), Jul. 2003, pp. 410-422).
Mital et al. (“Text segmentation for automatic document processing,” SPIE vol. 3651, 1999, pp. 30-40).
Yuan et al. (“Page segmentation and text extraction from gray scale image in microfilm format,” SPIE vol. 4307 (2001), pp. 323-331).

Affiliated with

Also associated with

Rating

Method of separating text and graphs in digital image data does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of separating text and graphs in digital image data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of separating text and graphs in digital image data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3827660