公开(公告)号：DE69229536T2

公开(公告)日：1999-11-25

申请号：DE69229536

申请日：1992-11-16

Applicant: XEROX CORP

Inventor： CASS TODD A ,  HUTTENLOCHER DANIEL P ,  HALVORSEN PER-KRISTIAN ,  WITHGOTT M MARGARET ,  KAPLAN RONALD M ,  RAO RAMANA B ,  BAGLEY STEVEN C ,  BLOOMBERG DAN S ,  CUTTING DOUGLASS R

IPC: G06F17/21 ,  G06F17/27 ,  G06F17/28 ,  G06K9/20 ,  G06T1/00 ,  G06T11/60 ,  G06K9/00

Abstract: A method and apparatus for processing a document image, using a programmed general or special purpose computer, includes forming the image into image units, and at least one image unit classifier of at least one of the image units is determined, without decoding the content of the at least one of the image units. The classifier of the at least one of the image units is then compared with a classifier of another image unit. The classifier may be image unit length, width, location in the document, font, typeface, cross-section, the number of ascenders, the number of descenders, the average pixel density, the length of the top line contour, the length of the base contour, the location of image units with respect to neighboring image units, vertical position, horizontal inter-image unit spacing, and so forth. The classifier comparison can be a comparison with classifiers of image units of words in a reference table, or with classifiers of other image units in the document. Equivalent classes of image units can be generated, from which word frequency and significance can be determined. The image units can be determined by creating bounding boxes about identifiable segments or extractable units of the image, and can contain a word, a phrase, a letter, a number, a character, a glyph or the like.

公开(公告)号：DE69229536D1

公开(公告)日：1999-08-12

申请号：DE69229536

申请日：1992-11-16

Applicant: XEROX CORP

Inventor： CASS TODD A ,  HUTTENLOCHER DANIEL P ,  HALVORSEN PER-KRISTIAN ,  WITHGOTT M MARGARET ,  KAPLAN RONALD M ,  RAO RAMANA B ,  BAGLEY STEVEN C ,  BLOOMBERG DAN S ,  CUTTING DOUGLASS R

IPC: G06F17/21 ,  G06F17/27 ,  G06F17/28 ,  G06K9/20 ,  G06T1/00 ,  G06T11/60 ,  G06K9/00

Abstract: A method and apparatus for processing a document image, using a programmed general or special purpose computer, includes forming the image into image units, and at least one image unit classifier of at least one of the image units is determined, without decoding the content of the at least one of the image units. The classifier of the at least one of the image units is then compared with a classifier of another image unit. The classifier may be image unit length, width, location in the document, font, typeface, cross-section, the number of ascenders, the number of descenders, the average pixel density, the length of the top line contour, the length of the base contour, the location of image units with respect to neighboring image units, vertical position, horizontal inter-image unit spacing, and so forth. The classifier comparison can be a comparison with classifiers of image units of words in a reference table, or with classifiers of other image units in the document. Equivalent classes of image units can be generated, from which word frequency and significance can be determined. The image units can be determined by creating bounding boxes about identifiable segments or extractable units of the image, and can contain a word, a phrase, a letter, a number, a character, a glyph or the like.

公开(公告)号：CA2077313C

公开(公告)日：1999-02-23

申请号：CA2077313

申请日：1992-09-01

Applicant: XEROX CORP

Inventor： WITHGOTT M MARGARET ,  BAGLEY STEVEN C ,  BLOOMBERG DAN S ,  HALVORSEN PER-KRISTIAN ,  HUTTENLOCHER DANIEL P ,  CASS TODD A ,  KAPLAN RONALD M ,  RAO RAMANA B ,  CUTTING DOUGLASS R

IPC: G06F17/21 ,  G06F17/27 ,  G06F17/28 ,  G06K9/20 ,  G06T1/00 ,  G06T11/60 ,  G06K9/78

Abstract: A method and apparatus for processing a document image, using a programmed general or special purpose computer, includes forming the image into image units, and at least one image unit classifier of at least one of the image units is determined, without decoding the content of the at least one of the image units. The classifier of the at least one of the image units is then compared with a classifier of another image unit. The classifier may be image unit length, width, location in the document, font, typeface, cross-section, the number of ascenders, the number of descenders, the average pixel density, the length of the top line contour, the length of the base contour, the location of image units with respect to neighboring image units, vertical position, horizontal inter-image unit spacing, and so forth. The classifier comparison can be a comparison with classifiers of image units of words in a reference table, or with classifiers of other image units in the document. Equivalent classes of image units can be generated, from which word frequency and significance can be determined. The image units can be determined by creating bounding boxes about identifiable segments or extractable units of the image, and can contain a word, a phrase, a letter, a number, a character, a glyph or the like.

公开(公告)号：DE69226611D1

公开(公告)日：1998-09-17

申请号：DE69226611

申请日：1992-11-16

Applicant: XEROX CORP

Inventor： WITHGOTT M MARGARET ,  HUTTENLOCHER DANIEL P ,  KAY MARTIN ,  BAGLEY STEVEN C ,  HALVORSEN PER KRISTIAN ,  BROWN JOHN SEELY ,  KAPLAN RONALD M ,  CASS TODD A ,  NEWMAN WILLIAM

IPC: G06F17/24 ,  G06F17/27 ,  G06F17/28 ,  G06F17/30 ,  G06K9/20 ,  G06K9/00 ,  G06T7/60

Abstract: A method and apparatus for applying morphological image criteria that identify image units in an undecoded document image having significant information content, and for retrieving related data that supplements the document either from elsewhere within the document or a source external to the document. The retrieved data can result from character code recognition or template matching of the identified significant image units, or the retrieved data can result directly from an analysis of the morphological image characteristics of the identified significant image units. A reading machine can allow a user to browse and select documents or segments thereof, and to obtain interactive retrieval of documents and supplemental data.

公开(公告)号：CA2077604A1

公开(公告)日：1993-05-20

申请号：CA2077604

申请日：1992-09-04

Applicant: XEROX CORP

Inventor： CASS TODD A ,  HALVORSEN PER-KRISTIAN ,  HUTTENLOCHER DANIEL P ,  KAPLAN RONALD M ,  WITHGOTT M MARGARET ,  RAO RAMANA B

IPC: G06K9/20 ,  G06F17/21 ,  G06K9/72 ,  G06T1/00 ,  G06T11/60

Abstract: A method and apparatus for determining word frequency from a document without first converting the document to character codes. The method includes morphological image processing to determine word unit characteristics for placement into equivalence classes utilizing non-content based information. Word shape representations are preferably determined and compared to define equivalent word units.

公开(公告)号：JPH11234500A

公开(公告)日：1999-08-27

申请号：JP30177198

申请日：1998-10-23

Applicant: XEROX CORP

Inventor： FLEET DAVID J ,  HEEGER DAVID J ,  CASS TODD A ,  HECHT DAVID L

IPC: G03G21/04 ,  G06T1/00 ,  H04N1/32 ,  H04N1/387

Abstract: PROBLEM TO BE SOLVED: To provide a method of forming a corrected color image by adding an unperceivable signal to an original image without using the original image. SOLUTION: In this machine operation method, a color image I'(x, y) corrected by adding a signal S (x, y) to an original image I(x, y) is generated (210) and a human perception model is used to measure a perception difference ΔE(x, y) between the original color image I(x, y) and the corrected color image I'(x, y) (240), the perception difference ΔE(x, y) and a threshold value are compared to specify an area where the perception difference ΔE(x, y) is perceived by a human observer (270), a signal S (x, y) is attenuated in the area and an unperceivable difference is added to the original color image I(x, y).

公开(公告)号：JP2003288607A

公开(公告)日：2003-10-10

申请号：JP2003016862

申请日：2003-01-27

Applicant: Xerox Corp ,  ゼロックス・コーポレーション

Inventor： SAUND ERIC ,  MORAN THOMAS P ,  DANIEL L LERNER ,  MAHONEY JAMES V ,  CASS TODD A

IPC: G06T11/60 ,  G06K9/20 ,  G06K9/22 ,  G06K9/62 ,  G09G5/00 ,  H04N1/387

CPC classification number: G06K9/00409 ,  G06K9/00463

Abstract: PROBLEM TO BE SOLVED: To provide a device and method which can simplify and provide labor saving for a process to import digital ink images into a structured text a graphic editor. SOLUTION: A digital ink device 24 can be connected with an electronic device 20, and thereby a digital ink image is electrically sent to the device 20. An image generating software installed in the device 20 generates a structured object expression of the digital ink image for use in a converter system 22. COPYRIGHT: (C)2004,JPO

Abstract translation: 要解决的问题：提供一种可以简化和为将数字墨水图像导入结构化文本的图形编辑器的过程提供省力的设备和方法。 解决方案：数字墨水装置24可以与电子装置20连接，从而将数字墨水图像电传送到装置20.安装在装置20中的图像产生软件产生数字墨水装置24的结构化物体表达 用于转换器系统22的油墨图像。（C）2004，JPO

公开(公告)号：JP2002190947A

公开(公告)日：2002-07-05

申请号：JP2001290056

申请日：2001-09-21

Applicant: XEROX CORP

Inventor： LUNT TERESA F ,  FRANKLIN MATTHEW K ,  HECHT DAVID L ,  BERSON THOMAS A ,  STEFIK MARK J ,  DEAN R DREWS ,  BELL ALAN G ,  BREUEL THOMAS M ,  CASS TODD A ,  CURRY DOUGLAS N ,  GREENE DANIEL H ,  KRIVACIC ROBERT T

IPC: B41J29/38 ,  B41J5/30 ,  B41J29/00 ,  G06F3/12 ,  G06T1/00 ,  H04N1/32 ,  H04N1/387 ,  H04N1/40

Abstract: PROBLEM TO BE SOLVED: To provide a printing method for appropriately preventing document forgery in accordance with a printed document. SOLUTION: A protection level which is to be applied to the document is decided from a plurality of protection levels by considering the value of the printed document, the latent possibility of forgery with respect to the document and cost for forgery prevention. A printer printing a watermark corresponding to the decided protection level is selected. The respective pages of the document are printed by using the printer. A mechanism for generating the evidence of copy and tracking information are incorporated in the watermark in accordance with the protection level.

公开(公告)号：JP2000235475A

公开(公告)日：2000-08-29

申请号：JP35555999

申请日：1999-12-15

Applicant: XEROX CORP

Inventor： ADLER ANNETTE M ,  FISHKIN KENNETH P ,  MARSHALL CATHERINE C ,  SILVERMAN ALEXANDER E ,  CASS TODD A

IPC: G10L15/00 ,  G06F3/16 ,  G06F17/22 ,  G10L15/04 ,  H04M1/57

Abstract: PROBLEM TO BE SOLVED: To provide a system and method for extracting key information from a digital audio message including a voice message over the telephone. SOLUTION: Information such as a telephone number 1318 or a name 1316 of a caller is extracted from a voice message 1310, and used for the establishment of a link with information in the message. Thus, the telephone number and the name of the caller can be reproduced without reproducing all voice messages. The telephone number and the name of the caller can be used as an index to an information data base.

公开(公告)号：JPH10152245A

公开(公告)日：1998-06-09

申请号：JP12095297

申请日：1997-05-12

Applicant: XEROX CORP

Inventor： JACKSON WARREN B ,  BIEGELSEN DAVID K ,  BERLIN ANDREW A ,  SPRAGUE ROBERT A ,  CASS TODD A

IPC: B41J11/42 ,  B65H7/02 ,  G01N13/00 ,  G01N33/34 ,  G03G15/00 ,  H04N1/00

Abstract: PROBLEM TO BE SOLVED: To provide a system to optimize the sheet handing speed, or the like by detecting the characteristics of the paper sheet, and regulating the setting of a sheet carrying mechanism based on the detected characteristics. SOLUTION: A paper sheet characteristics sensor system 100a measures the curl and the thickness of the paper sheet using two paper sheet characteristics sensors 110. Each paper sheet characteristics sensor 110 comprises a member 112, a base 114, and a measurement circuit. Two members 112 are arranged opposite to each other, and both members 112 are brought into contact with a sheet 116 when the paper sheet 116 is passed therethrough. Each member 112 is connected to the base 114 including the measurement circuit. Each measurement circuit measures the displacement of a related member.