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