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1.发明授权
公开(公告)号：EP0632404B1
公开(公告)日：1997-12-29
申请号：EP93110481
申请日：1993-07-01
Applicant: IBM
Inventor： MAIER UDO , RUPPERT WERNER
CPC classification number: G06K9/6202 , G06K9/6255
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公开(公告)号：JPH11345283A
公开(公告)日：1999-12-14
申请号：JP12540899
申请日：1999-05-06
Applicant: IBM
Inventor： MAIER UDO , RUPPERT WERNER
Abstract: PROBLEM TO BE SOLVED: To improve a recognition speed by sending a character that is not clearly recognized through supplementary recognition to a correction system, classifying the character and using the information to educate a supplementary recognition unit. SOLUTION: All characters that are classified by a primary recognition subsystem 1 which has lower reliability value than defined threshold is next sent to a supplementary recognition subsystem 3. A character (rejection) that is not recognized even by the subsystem 3 or is recognized mistakenly is next sent to a correction system 5, e.g. a video coding system. The rejected character is corrected manually in the correction system and the final result of character recognition is usually formed (arrow 6). Here, an additional pattern adaptation system 7 is arranged between the systems 5 and 3 and an input from the system 5 can be used for further education of the system 3 in a continuous process.
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公开(公告)号：DE4407998C2
公开(公告)日：1996-03-14
申请号：DE4407998
申请日：1994-03-10
Applicant: IBM
Inventor： RUPPERT WERNER DIPL ING , MAIER UDO
Abstract: PCT No. PCT/EP95/00857 Sec. 371 Date Sep. 10, 1996 Sec. 102(e) Date Sep. 10, 1996 PCT Filed Mar. 8, 1995 PCT Pub. No. WO95/24693 PCT Pub. Date Sep. 14, 1993An apparatus and method for recognizing written characters. In one aspect, a method for recognizing written characters comprises the steps of: recognizing written characters with each of a plurality of writing recognition units, each of the writing recognition units supplying reliability values for each recognized character; determining a confidence level for each of the written characters from the corresponding reliability value for the written characters; testing the agreement of the results from the writing recognition units for each of the recognized characters; evaluating a plurality of rules for each of the recognized character with the corresponding levels and agreements; and delivering the overall result of the writing recognition process.
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公开(公告)号：DE4407998A1
公开(公告)日：1995-09-14
申请号：DE4407998
申请日：1994-03-10
Applicant: IBM
Inventor： RUPPERT WERNER DIPL ING , MAIER UDO
Abstract: A method and device for recognizing characters on a document (20) are described. The device comprises at least two writing-recognition units (30, 40), an evaluation device (50) for evaluating the results produced by the writing-recognition units (30, 40) by means of a database (110) of rules for evaluating the sample recognized by the writing-recognition units (30, 40), a calculating device (50) for calculating the authenticity of each sample recognized by the writing-recognition units (30, 40) and a sample vector memory part (120) for storing the calculated authenticity. The authenticity is used by the evaluating device (50) to improve the evaluation results.
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Patent Agency Ranking
公开(公告)号：DE19820353C2
公开(公告)日：2001-06-13
申请号：DE19820353
申请日：1998-05-07
Applicant: IBM
Inventor： MAIER UDO , RUPPERT WERNER
Abstract: A novel system for recognition of patterns on presented item. A known recognition system expanded by a complementary recognition which is linked with the primary recognition. The results of the primary recognition which are not positively recognised are passed on to the complementary recognition and any characters not positively recognised by the complementary recognition are again passed on to a correction system. Here an operator classifies the unrecognised characters which are then used to teach the complementary recognition unit. Thus, the classified data of the correction system provide the training data for a continuous training process which is coupled with the correction system.
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公开(公告)号：DE59503705D1
公开(公告)日：1998-10-29
申请号：DE59503705
申请日：1995-03-08
Applicant: IBM
Inventor： RUPPERT WERNER , MAIER UDO
Abstract: PCT No. PCT/EP95/00857 Sec. 371 Date Sep. 10, 1996 Sec. 102(e) Date Sep. 10, 1996 PCT Filed Mar. 8, 1995 PCT Pub. No. WO95/24693 PCT Pub. Date Sep. 14, 1993An apparatus and method for recognizing written characters. In one aspect, a method for recognizing written characters comprises the steps of: recognizing written characters with each of a plurality of writing recognition units, each of the writing recognition units supplying reliability values for each recognized character; determining a confidence level for each of the written characters from the corresponding reliability value for the written characters; testing the agreement of the results from the writing recognition units for each of the recognized characters; evaluating a plurality of rules for each of the recognized character with the corresponding levels and agreements; and delivering the overall result of the writing recognition process.
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公开(公告)号：DE69315990T2
公开(公告)日：1998-07-02
申请号：DE69315990
申请日：1993-07-01
Applicant: IBM
Inventor： MAIER UDO , RUPPERT WERNER RUPPERT WERNER
Abstract: A system for pattern recognition and a system for generating feature masks being used in the pattern recognition process is described which utilizes beside pieces covering a master and sample pattern also pieces not covering the area of the master and sample pattern. Thus, there are formed zonal features and anti-features having positive and negative feature factor values as well as incorporating different weighting factors. This system allows a fully automatic feature generation technique and allows training of new character classes in a very short time. For each meaning class the different shaped classes are generated by statistical means and the weighted zonal positive features are derived. Besides this in parallel there are weighted anti-features trained which increase the accuracy of classification substantially. The system of the present invention implements a classifier of high accuracy for recognition of for example characters with low print quality according to banking requirements.
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公开(公告)号：DE69315990D1
公开(公告)日：1998-02-05
申请号：DE69315990
申请日：1993-07-01
Applicant: IBM
Inventor： MAIER UDO , RUPPERT WERNER RUPPERT WERNER
Abstract: A system for pattern recognition and a system for generating feature masks being used in the pattern recognition process is described which utilizes beside pieces covering a master and sample pattern also pieces not covering the area of the master and sample pattern. Thus, there are formed zonal features and anti-features having positive and negative feature factor values as well as incorporating different weighting factors. This system allows a fully automatic feature generation technique and allows training of new character classes in a very short time. For each meaning class the different shaped classes are generated by statistical means and the weighted zonal positive features are derived. Besides this in parallel there are weighted anti-features trained which increase the accuracy of classification substantially. The system of the present invention implements a classifier of high accuracy for recognition of for example characters with low print quality according to banking requirements.
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公开(公告)号：DE19820353A1
公开(公告)日：1999-11-11
申请号：DE19820353
申请日：1998-05-07
Applicant: IBM
Inventor： MAIER UDO , RUPPERT WERNER
Abstract: A novel system for recognition of patterns on presented item. A known recognition system expanded by a complementary recognition which is linked with the primary recognition. The results of the primary recognition which are not positively recognised are passed on to the complementary recognition and any characters not positively recognised by the complementary recognition are again passed on to a correction system. Here an operator classifies the unrecognised characters which are then used to teach the complementary recognition unit. Thus, the classified data of the correction system provide the training data for a continuous training process which is coupled with the correction system.
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