Matching CCITT compressed document images

Details Matching CCITT compressed document images Matching CCITT compressed document images

1996-08-01

2000-08-15

Mehta, Bhavesh

Image analysis

Pattern recognition

Template matching

382190, 382218, 382306, G06K 962

Patent

active

061048348

ABSTRACT:
A fast, memory efficient, and accurate document image matching system is disclosed. Document image matching is based on identifying anchor points of characters in the document. The document matching process includes a feature extraction step where anchor points, e.g., points representing approximate locations of characters, are identified as features for matching. In a particularly efficient implementation, the anchor points are "pass codes" in a two-dimensionally encoded representation of a document image.

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