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Class Information
Number: 382/201
Name: Image analysis > Pattern recognition > Feature extraction > Local or regional features > Point features (e.g., spatial coordinate descriptors)
Description: Subject matter including any of the following: an image is sampled at only a few key locations to determine whether essential points in a pattern* are present at those locations; every measurement on the image results in a set of values representing spatial coordinates only; or each of the features sought within a pattern* can be defined by a specific point.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7627178 |
Image recognition device using feature points, method for recognizing images using feature points, and robot device which recognizes images using feature points |
Dec. 1, 2009 |
| 7623736 |
Registration of three dimensional image data with patient in a projection imaging system |
Nov. 24, 2009 |
| 7587671 |
Image repositioning, storage and retrieval |
Sep. 8, 2009 |
| 7587088 |
Method and apparatus for image processing |
Sep. 8, 2009 |
| 7576753 |
Method and apparatus to convert bitmapped images for use in a structured text/graphics editor |
Aug. 18, 2009 |
| 7561737 |
Mathematical expression recognition |
Jul. 14, 2009 |
| 7561738 |
Symbol grouping and recognition in expression recognition |
Jul. 14, 2009 |
| 7561739 |
Analyzing scripts and determining characters in expression recognition |
Jul. 14, 2009 |
| 7437003 |
System and method for handling electronic ink |
Oct. 14, 2008 |
| 7428336 |
Efficient detection of constant regions of an image |
Sep. 23, 2008 |
| 7418141 |
Method, apparatus, and computer-readable medium for identifying character coordinates |
Aug. 26, 2008 |
| 7408536 |
Device and method for communication |
Aug. 5, 2008 |
| 7400747 |
Method and apparatus for representing moving objects in a sequence of images |
Jul. 15, 2008 |
| 7400768 |
Enhanced optical recognition of digitized images through selective bit insertion |
Jul. 15, 2008 |
| 7397948 |
System and method for image and video segmentation by anisotropic kernel mean shift |
Jul. 8, 2008 |
| 7386172 |
Image recognition method |
Jun. 10, 2008 |
| 7376251 |
Electronic image evaluating device and evalution method |
May. 20, 2008 |
| 7333649 |
Measurement processing apparatus for geometrically measuring an image |
Feb. 19, 2008 |
| 7317836 |
Pose estimation based on critical point analysis |
Jan. 8, 2008 |
| 7298900 |
Image processing method, image processing apparatus and image processing program |
Nov. 20, 2007 |
| 7239752 |
Extendable tracking by line auto-calibration |
Jul. 3, 2007 |
| 7162059 |
Method for implementing a navigation key function in a mobile communication terminal based on fingerprint recognition |
Jan. 9, 2007 |
| 7162082 |
Method and apparatus for performing a clean background subtraction |
Jan. 9, 2007 |
| 7079144 |
Curve generating device and method, and program recorded medium |
Jul. 18, 2006 |
| 7054476 |
Apparatus for automatically setting measurement reference element and measuring geometric feature of image |
May. 30, 2006 |
| 7035466 |
Process and device for detection of straight-line segments in a stream of digital data that are representative of an image in which the contour points of said image are identified |
Apr. 25, 2006 |
| 7031017 |
Data processing system, printer, image recording system and image recording method |
Apr. 18, 2006 |
| 7019761 |
Methods for auto-separation of texts and graphics |
Mar. 28, 2006 |
| 6985626 |
Pattern evaluation method, pattern evaluation system and computer-readable recorded medium |
Jan. 10, 2006 |
| 6959103 |
Displacement sensor having a display data output |
Oct. 25, 2005 |
| 6934405 |
Address reading method |
Aug. 23, 2005 |
| 6853751 |
Location of generally rectangular shaped objects in an image |
Feb. 8, 2005 |
| 6836555 |
Information management system with authenticity check |
Dec. 28, 2004 |
| 6834119 |
Methods and apparatus for matching multiple images |
Dec. 21, 2004 |
| 6829382 |
Structure-guided automatic alignment for image processing |
Dec. 7, 2004 |
| 6778699 |
Method of determining vanishing point location from an image |
Aug. 17, 2004 |
| 6714675 |
Autogrid analysis |
Mar. 30, 2004 |
| 6687403 |
Process and device for detection of straight-line segments in a stream of digital data that are representative of an image in which the contour points of said image are identified |
Feb. 3, 2004 |
| 6668083 |
Deriving geometrical data of a structure from an image |
Dec. 23, 2003 |
| 6633669 |
Autogrid analysis |
Oct. 14, 2003 |
| 6614932 |
Information converting system |
Sep. 2, 2003 |
| 6574366 |
Line and curve detection using local information |
Jun. 3, 2003 |
| 6542638 |
Method for matching spatial patterns |
Apr. 1, 2003 |
| 6532300 |
Method of automatically analyzing patterns |
Mar. 11, 2003 |
| 6487310 |
Signature matching |
Nov. 26, 2002 |
| 6487306 |
System and method for deriving a string-based representation of a fingerprint image |
Nov. 26, 2002 |
| 6477273 |
Centroid integration |
Nov. 5, 2002 |
| 6459824 |
Method of retrieving moving pictures using joint points based on pose information |
Oct. 1, 2002 |
| 6445814 |
Three-dimensional information processing apparatus and method |
Sep. 3, 2002 |
| 6421461 |
PATTERN RECOGNITION APPARATUS WHICH COMPARES INPUT PATTERN FEATURE AND SIZE DATA TO REGISTERED FEATURE AND SIZE PATTERN DATA, AN APPARATUS FOR REGISTERING FEATURE AND SIZE DATA, AND CORRESPOND |
Jul. 16, 2002 |
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