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公开(公告)号：EP1360641A4
公开(公告)日：2008-12-24
申请号：EP01985991
申请日：2001-11-19
Applicant: IBM
Inventor： MITCHELL JONA L , PRAKASH RAVINDER , STEPNESKI DAVID
CPC classification number: H04N19/98 , H04N19/126 , H04N19/14 , H04N19/176 , H04N19/18 , H04N19/40 , H04N19/46 , H04N19/60
Abstract: Increased and potentially extreme compression of documents is achieved by reducing/remapping the dynamic range (140) of the document image possibly together with further image analysis (110) and pre-processing (120) and storing the document with a substitute table to restore dynamic range (170) of the document image. Such increased compression allow document images to be maintained in rapid-access memory for extended periods without increased storage costs.
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2.发明专利Apparatus, system, program and method for detecting fraudulent character (apparatus, system and method for detecting fraudulent character using multiple scanning technologies) 有权用于检测伪造字符的装置，系统，程序和方法（使用多个扫描技术检测欺诈字符的装置，系统和方法）
公开(公告)号：JP2006146901A
公开(公告)日：2006-06-08
申请号：JP2005318184
申请日：2005-11-01
Applicant: Internatl Business Mach Corp
, インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation Inventor： KRUPPA ROBERT W , PRAKASH RAVINDER
CPC classification number: G06K9/186
Abstract: PROBLEM TO BE SOLVED: To disclose an apparatus, system and method for detecting fraudulent character.
SOLUTION: A first optical character recognition module optically recognizes a character transcripted with a magnetic ink on a medium using a first optical character recognition algorithm. A second optical character recognition module also optically recognizes the character using a second optical character recognition algorithm. In addition, a magnetic ink character recognition module magnetically recognizes the character using a magnetic recognition algorithm. A voting module determines if the character is potentially fraudulent based on the recognition results of the first optical character recognition module, the second optical character recognition module, and the magnetic ink character recognition module. If the character is potentially fraudulent, a results module communicates a fraud indicator.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：公开用于检测欺诈性的装置，系统和方法。 解决方案：第一光学字符识别模块使用第一光学字符识别算法在介质上光学识别用磁性墨水转录的字符。 第二光学字符识别模块还使用第二光学字符识别算法来光学识别角色。 此外，磁性墨水字符识别模块使用磁性识别算法磁性识别角色。 基于第一光学字符识别模块，第二光学字符识别模块和磁性墨水字符识别模块的识别结果，投票模块确定该角色是否具有潜在的欺诈性。 如果角色潜在地是欺诈性的，则结果模块传达欺诈指示符。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：WO02058000A8
公开(公告)日：2004-04-08
申请号：PCT/US0143631
申请日：2001-11-19
Applicant: IBM
Inventor： MITCHELL JONA L , PRAKASH RAVINDER , STEPNESKI DAVID
CPC classification number: H04N19/98 , H04N19/126 , H04N19/14 , H04N19/176 , H04N19/18 , H04N19/40 , H04N19/46 , H04N19/60
Abstract: Increased and potentially extreme compression of documents is achieved by reducing/remapping the dynamic range (140) of the document image possibly together with further image analysis (110) and pre-processing (120) and storing the document with a substitute table to restore dynamic range (170) of the document image. Such increased compression allow document images to be maintained in rapid-access memory for extended periods without increased storage costs.
Abstract translation: 通过减少/重新映射文档图像的动态范围（140）可能与进一步的图像分析（110）和预处理（120）一起实现文档的增加和潜在的极端压缩，并且用替换表存储文档以恢复动态 范围（170）的文档图像。 这种增加的压缩允许文件图像在快速存取存储器中长时间地维持，而不增加存储成本。
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公开(公告)号：BR8805812A
公开(公告)日：1989-08-01
申请号：BR8805812
申请日：1988-11-08
Applicant: IBM
Inventor： PRAKASH RAVINDER , WOLFE LARRY LANCE
Abstract: An image scanning apparatus for use on a laser electrophotographic printer provides improved imaging in both the scan and process direction in a printer using a multiple spot printhead.
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Patent Agency Ranking
公开(公告)号：AT454015T
公开(公告)日：2010-01-15
申请号：AT01985991
申请日：2001-11-19
Applicant: IBM
Inventor： MITCHELL JONA , PRAKASH RAVINDER , STEPNESKI DAVID
Abstract: Increased and potentially extreme compression of documents is achieved by reducing/remapping the dynamic range of the document image possibly together with further image analysis and pre-processing and storing the document together with a substituted table of values chosen to restore or enhance the dynamic range of the document image. Increased or extreme compression is provided notwithstanding multiple image tones (e.g. colors or grey scale levels) even at low contrast within a document, such as a personal check. Such increased compression allows document images to be maintained in rapid-access memory for extended periods without increased storage costs.
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公开(公告)号：DE69114550D1
公开(公告)日：1995-12-21
申请号：DE69114550
申请日：1991-02-07
Applicant: IBM
Inventor： KOMPLIN STEVEN ROBERT , PRAKASH RAVINDER , WOLFE LARRY LANCE
Abstract: In a laser printer, light beams (4) need to be focused onto a printing surface to form points where print indicia are to effect a print image. In a printer where it is desirable to have variable pitch print characters, a new method has been employed to create variable print character pitches. Multiple non-parallel points of light are emitted through a collimating lens (6) onto a wedge (8) shaped optical component which directs the multiple beams of light into parallel alignment. The optical wedge has one planar surface perpendicular to at least one light beam emitted through the collimating lens. This light beam is normal to the perpendicular planar surface and passes through the wedge without being deflected. The optical wedge also has one or more planar surfaces that direct the other light beams into parallel alignment with the undeflected light beam. By moving the optical wedge away from the collimating lens the pitch (distance) between the light beams is increased and conversely, by moving the optical wedge towards the collimating lens the pitch decreases.
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公开(公告)号：CA2131672A1
公开(公告)日：1995-06-30
申请号：CA2131672
申请日：1994-09-08
Applicant: IBM
Inventor： PRAKASH RAVINDER , ROHRER GENE D
Abstract: An optical scanning station is disclosed which utilizes light bending apparatus such as mirrors or optical wedges to gather and redirect some of the illumination radiating from the object. The gathering of the light occurs off-axis from the lens and the redirection of the light to the lens causes an off-axis angle between the light beam and the lens axis, thereby resulting in multiple images which are spaced apart from each other when focused on an image plane. The multiple images may be split apart and directed to separate image planes by use of front surface mirrors making the images then available for individual capture by charge couple devices or other similar image capture apparatus. Alternatively, the outboard images may be redirected, again by mirrors, to be focused coincident to the on-axis image, thereby increasing the illumination level at the image plane well in excess of that obtainable with only a single image of the object being focused at the image plane. The primary advantage of these devices is either to permit separate images to be presented on separate image planes without the subtractive losses occasioned by use of subtractive beam splitters or to combine the multiple images to raise the illumination level of a single image at the image plane, thereby permitting the use of slower lenses or reduced illumination level at the object.
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公开(公告)号：DE60140959D1
公开(公告)日：2010-02-11
申请号：DE60140959
申请日：2001-11-19
Applicant: IBM
Inventor： MITCHELL JONA L , PRAKASH RAVINDER , STEPNESKI DAVID
Abstract: Increased and potentially extreme compression of documents is achieved by reducing/remapping the dynamic range of the document image possibly together with further image analysis and pre-processing and storing the document together with a substituted table of values chosen to restore or enhance the dynamic range of the document image. Increased or extreme compression is provided notwithstanding multiple image tones (e.g. colors or grey scale levels) even at low contrast within a document, such as a personal check. Such increased compression allows document images to be maintained in rapid-access memory for extended periods without increased storage costs.
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