Patents
Patents for G06K 9 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints (160,016)
07/1990
07/03/1990US4939578 Method of driving multiple chip CCD image sensor
07/03/1990US4939439 Robot vision and optical location systems
06/1990
06/27/1990EP0375352A1 Method of searching a matrix of binary data
06/27/1990EP0375090A2 Document processing system
06/27/1990EP0374604A2 Pattern recognition system and method
06/26/1990US4936680 Method of, and apparatus for, edge enhancement of fingerprint minutia
06/26/1990CA1270953A1 Method of curve approximation
06/20/1990CN1008484B Processor i/o and interrupt filters
06/19/1990US4934799 Multi-lens focussing arrangement for laser graphics imaging apparatus
06/19/1990US4934782 Optical thresholding apparatus and method
06/19/1990CA1270560A1 Sensor aligning means for optical reading apparatus
06/19/1990CA1270541A1 Line tracer improved corner circuit
06/13/1990EP0372762A2 Minutia data extraction in fingerprint identification
06/13/1990EP0372748A2 Fingerprint-detecting device
06/13/1990EP0372608A1 Method and device for picture data compression using a neural network
06/12/1990US4933984 Document analysis system
06/12/1990US4933979 Data reading apparatus for reading data from form sheet
06/12/1990US4933977 Method for identifying plural connected figures
06/12/1990US4933976 System for generating rolled fingerprint images
06/12/1990US4933872 Method and system for wavefront reconstruction
06/12/1990US4933865 Apparatus for recognition of drawn shapes or view types for automatic drawing input in CAD system
06/12/1990US4932776 Fingerprint acquisition system
06/12/1990CA1270332A1 Fingerprint recognition and retrieval system
06/06/1990EP0371792A2 Feature comparison
06/06/1990EP0371703A2 Document scanner
06/06/1990EP0371596A2 Character reader
06/06/1990EP0371449A2 Pattern selecting device capable of selecting favorable candidate patterns
06/06/1990CA2004457A1 Minutia data extraction in fingerprint identification
06/05/1990US4932065 Universal character segmentation scheme for multifont OCR images
06/05/1990US4931881 Method of reducing digital images
06/05/1990US4931880 Copying apparatus
06/01/1990CA2004381A1 Feature comparison
05/1990
05/31/1990WO1990005957A1 Object recognition
05/31/1990DE3938627A1 Pattern recognition system - uses comparison of read data signals with stored reference valves
05/30/1990EP0370766A2 Sorting method and apparatus
05/30/1990EP0370752A2 Methods and apparatus for optically enhancing selected features in an input image
05/29/1990US4930013 For classifying a set of values representing a two-dimensional pattern
05/26/1990CA2003870A1 Document scanner
05/23/1990EP0369761A2 Character segmentation method
05/23/1990CN1042415A Multi-function footprint comparing device
05/22/1990US4928181 Methods and apparatus for optically enhancing selected features in an input image
05/21/1990CA2003528A1 Methods and apparatus for optically enhancing selected features in an image
05/17/1990WO1990005332A1 Information input method and apparatus and information processing apparatus
05/16/1990EP0368671A2 Feature extracting apparatus
05/16/1990EP0367952A2 System for detecting and analyzing rounded objects
05/16/1990EP0367790A1 System for category recognition of analog pattern.
05/16/1990CN1008022B Character recognition system
05/15/1990US4926492 Optical character reading apparatus and method
05/15/1990US4926491 Pattern recognition device
05/15/1990US4926490 Method and apparatus for recognizing characters on a document
05/15/1990US4926483 Pattern recognition system using hueristic search technique
05/15/1990US4925300 Optical fingerprint imaging device
05/09/1990EP0367585A2 Electronic data encoding and recognition system
05/09/1990EP0366850A1 Automatic fingerprint identification method
05/09/1990EP0245359B1 Method and apparatus for character extraction
05/08/1990US4924507 Real-time optical multiple object recognition and tracking system and method
05/08/1990US4924085 Uneven-surface data detection apparatus
05/08/1990US4923297 Optical alignment system
05/03/1990WO1990004837A1 Method and apparatus for converting documents into electronic data for transaction processing
05/02/1990EP0366298A2 Recognition and processing of wave forms
05/01/1990US4922543 Image processing device
05/01/1990US4922086 Write head apparatus for recognizing magnetic characters and method therefor
05/01/1990US4921279 MICR printing technique and apparatus to minimize rejects with correction stickers
04/1990
04/25/1990CN1007759B Improved method and apparatus for specifying and forming characters
04/24/1990US4920572 Object recognition system for a robot
04/24/1990CA1268254A1 Optical information reading apparatus
04/18/1990EP0363828A2 Method and apparatus for adaptive learning type general purpose image measurement and recognition
04/18/1990EP0363525A1 Method of recognising the two-dimensional position and orientation of already known objects
04/17/1990US4918740 Processing means for use in an optical character recognition system
04/17/1990US4918739 Process and system for digital analysis of images applied to stratigraphic data
04/17/1990US4918633 Digital image noise reduction method and transmission system
04/17/1990US4917987 Method of enhancing the resolution of a fingerprint image in a fingerprint recording system
04/12/1990DE3834048A1 Method for optoelectronic identification of a person
04/11/1990EP0362970A2 A writing instrument for use in capturing information in drawing or writing
04/11/1990EP0362595A2 Image binarization apparatus
04/05/1990WO1990003620A1 Full roll fingerprint apparatus
04/04/1990EP0361987A1 Relief surface imaging device, particularly for finger prints
04/04/1990EP0361914A2 A driving way judging device and method
04/04/1990EP0361466A2 Active phase quieting target highlight detector
04/04/1990EP0360920A1 Circuit arrangement for obtaining the white level for the black-white quantizing of scan signals of single photosensors
04/04/1990CN1041055A Document processing apparatus with auxiliary constructive word-out function
04/04/1990CN1041050A Hand-written charactor recognition apparatus
04/04/1990CN1041049A Information code sheet and method for recognition of this code
04/04/1990CN1007464B Production of an image model and inspection of pixel representation of an image
04/03/1990US4914709 Method for identifying unrecognizable characters in optical character recognition machines
04/03/1990US4914708 System for self-organization of stable category recognition codes for analog input patterns
03/1990
03/28/1990EP0360267A2 Processor for process control
03/28/1990EP0085545B1 Pattern recognition apparatus and method for making same
03/28/1990CN1007379B Character recognition system by means of extracting approximated stroke lines
03/27/1990US4912559 Image processing method
03/27/1990US4911531 Optical correlator system
03/22/1990WO1990003012A2 Image recognition
03/21/1990EP0359554A2 Biological object detecting system and fingerprint collating system employing same
03/21/1990EP0359301A1 Method of recognizing a pattern in a field having a multi-valent amplitude, and device for performing such a method
03/21/1990EP0358911A2 Image recognition audience measurement system
03/21/1990EP0358910A2 Image recognition system and method
03/21/1990CN1040694A Hand-written charactor recognition apparatus
03/21/1990CN1040693A Hand-written character recognition apparatus and method
03/20/1990US4910787 Discriminator between handwritten and machine-printed characters
03/20/1990US4910783 Method and apparatus for comparing patterns