Document matching and annotation lifting

Details Document matching and annotation lifting Document matching and annotation lifting

2005-11-22

2005-11-22

Miriam, Daniel (Department: 2621)

Image analysis

Pattern recognition

Template matching

Reexamination Certificate

active

06968085

ABSTRACT:
A method for matching an original document image with a copy image is disclosed. The original document image is defined as an ensemble of blocks, each of the blocks having neighboring blocks. A mask is formed for each of the blocks by dilating foreground pixels included in the block. A best match is searched in the copy image, for each of the blocks, using a search window, by correlating pixels in the mask with pixels in a corresponding portion in the copy image. Each of the best matches has a matching score. Each of the blocks is indicated as “unmatched” when the corresponding matching score is less than a matching threshold. A displacement vector is computed for each of the matched blocks.

REFERENCES:
patent: 5067162 (1991-11-01), Driscoll et al.
patent: 5696838 (1997-12-01), Chiu et al.
patent: 6122401 (2000-09-01), Nagao
patent: 6222883 (2001-04-01), Murdock et al.
patent: 6272245 (2001-08-01), Lin
patent: 6320977 (2001-11-01), Tokura
patent: 6343204 (2002-01-01), Yang
patent: 6545706 (2003-04-01), Edwards et al.
J. Mao and K. Mohiuddin, Form Dropout Using Distance Transformation,Proc. Int. Conf. on Image Processing, vol. 3, 1995, pp. 328-331.

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