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Class Information
Number: 382/198
Name: Image analysis > Pattern recognition > Feature extraction > Local or regional features > Directional codes and vectors (e.g., freeman chains, compasslike codes) > Extracted from alphanumeric characters
Description: Subject matter wherein the directional features or vectors are extracted from letters, numerals, or other human language symbols.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7433537 |
Image reproduction system for removing noise of a periodic pattern |
Oct. 7, 2008 |
| 7394574 |
Method and device for electronically correcting the color value in film scanners |
Jul. 1, 2008 |
| 7349588 |
Automatic meter reading |
Mar. 25, 2008 |
| 7277598 |
Image processing apparatus, certification photograph taking apparatus, and certification photograph creation system |
Oct. 2, 2007 |
| 7242805 |
System and method for automated symbolic recognition including database modeling |
Jul. 10, 2007 |
| 7190833 |
Mobile device and transmission system |
Mar. 13, 2007 |
| 7069215 |
Systems and methods for extracting meaning from multimodal inputs using finite-state devices |
Jun. 27, 2006 |
| 6958714 |
Encoding method and encoding apparatus, and computer program and computer readable storage medium |
Oct. 25, 2005 |
| 6927774 |
Character display device and character display method |
Aug. 9, 2005 |
| 6907145 |
Image processing apparatus, certification photograph taking apparatus, and certification photograph creation system |
Jun. 14, 2005 |
| 6898315 |
Feature extraction for real-time pattern recognition using single curve per pattern analysis |
May. 24, 2005 |
| 6859556 |
Word recognizing apparatus for dynamically generating feature amount of word and method thereof |
Feb. 22, 2005 |
| 6795579 |
Method and apparatus for recognizing handwritten chinese characters |
Sep. 21, 2004 |
| 6721452 |
System and method of handwritten character recognition |
Apr. 13, 2004 |
| 6704449 |
Method of extracting text from graphical images |
Mar. 9, 2004 |
| 6690821 |
Determining the font of text in an image |
Feb. 10, 2004 |
| 6636631 |
Optical character reading method and system for a document with ruled lines and its application |
Oct. 21, 2003 |
| 6580826 |
Method and apparatus for parametric representation of handwritten symbols |
Jun. 17, 2003 |
| 6532303 |
Line direction deciding device, image inclination detecting device and image inclination correcting device |
Mar. 11, 2003 |
| 6393151 |
Pattern reading system |
May. 21, 2002 |
| 6389166 |
On-line handwritten Chinese character recognition apparatus |
May. 14, 2002 |
| 6240209 |
Method for deriving character features in a character recognition system |
May. 29, 2001 |
| 6229920 |
Method of classifying and recognizing patterns by additive contour extraction and averaging |
May. 8, 2001 |
| 6181432 |
Printing system, printing apparatus and printing control method |
Jan. 30, 2001 |
| 6178263 |
Method of estimating at least one run-based font attribute of a group of characters |
Jan. 23, 2001 |
| 6157738 |
System for extracting attached text |
Dec. 5, 2000 |
| 6148119 |
Character recognition in input images divided into areas |
Nov. 14, 2000 |
| 6075892 |
Methods for determining font attributes of characters |
Jun. 13, 2000 |
| 6052481 |
Automatic method for scoring and clustering prototypes of handwritten stroke-based data |
Apr. 18, 2000 |
| 5982929 |
Pattern recognition method and system |
Nov. 9, 1999 |
| 5923790 |
Method and apparatus for detecting vertical direction of document |
Jul. 13, 1999 |
| 5920647 |
Method and apparatus for recognition of hand-printed characters represented as an electronic ink stream using a box filtering technique |
Jul. 6, 1999 |
| 5920644 |
Apparatus and method of recognizing pattern through feature selection by projecting feature vector on partial eigenspace |
Jul. 6, 1999 |
| 5911005 |
Character recognition method and system |
Jun. 8, 1999 |
| 5889889 |
Method and apparatus for machine recognition of handwritten symbols from stroke-parameter data |
Mar. 30, 1999 |
| 5878161 |
Image processing using vector data to reduce noise |
Mar. 2, 1999 |
| 5864635 |
Distinguishing gestures from handwriting in a pen based computer by stroke analysis |
Jan. 26, 1999 |
| 5862256 |
Distinguishing gestures from handwriting in a pen based computer by size discrimination |
Jan. 19, 1999 |
| 5857029 |
Method and apparatus for non-contact signature imaging |
Jan. 5, 1999 |
| 5854855 |
Method and system using meta-classes and polynomial discriminant functions for handwriting recognition |
Dec. 29, 1998 |
| 5802205 |
Method and system for lexical processing |
Sep. 1, 1998 |
| 5781660 |
Image processing method and apparatus |
Jul. 14, 1998 |
| 5764797 |
Method and system for modeling handwriting using polynomials as a function of time |
Jun. 9, 1998 |
| 5761328 |
Computer automated system and method for converting source-documents bearing alphanumeric text relating to survey measurements |
Jun. 2, 1998 |
| 5757964 |
System and method for automatic subcharacter unit and lexicon generation for handwriting recognition |
May. 26, 1998 |
| 5754689 |
Image processing method and apparatus |
May. 19, 1998 |
| 5729629 |
Handwritten symbol recognizer |
Mar. 17, 1998 |
| 5666440 |
Method and apparatus for extracting outline data from bi-level image data |
Sep. 9, 1997 |
| 5659633 |
Character recognition method utilizing compass directions and torsion points as features |
Aug. 19, 1997 |
| 5644366 |
Image reproduction involving enlargement or reduction of extracted contour vector data for binary regions in images having both binary and halftone regions |
Jul. 1, 1997 |
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