31.
    发明专利
    未知

    公开(公告)号:DE60132315D1

    公开(公告)日:2008-02-21

    申请号:DE60132315

    申请日:2001-02-21

    Applicant: IBM

    Inventor: ZLOTNICK AVIAD

    Abstract: A method for binarizing a gray-level input image including a plurality of pixels having respective gray-level values. A lower threshold and an upper threshold are determined. A first binary value is assigned to the pixels in the gray-level image having gray-level values above the upper threshold, and a second binary value is assigned to the pixels in the gray-level image having gray-level values below the lower threshold. The pixels in an intermediate group having gray-level values between the lower and upper thresholds are processed so as to determine optimal assignments of the pixels in the intermediate group to the first and second binary values.

    Compression of images in gray level

    公开(公告)号:GB2355359B

    公开(公告)日:2003-12-03

    申请号:GB0020393

    申请日:2000-08-21

    Applicant: IBM

    Inventor: ZLOTNICK AVIAD

    Abstract: A method for compressing an electronic image of an object including gray-level information includes processing the gray-level information to identify a kernel of pixels in the image having respective gray-level values darker than a given kernel threshold. A locus of the pixels in the kernel is stored in a memory, along with the gray-level values of the pixels in the kernel, in order to reconstruct a gray-level image of the object by applying the stored gray-level values to the pixels in the locus.

    Compression of images in gray level

    公开(公告)号:GB2355359A

    公开(公告)日:2001-04-18

    申请号:GB0020393

    申请日:2000-08-21

    Applicant: IBM

    Inventor: ZLOTNICK AVIAD

    Abstract: A method for compressing an electronic image of an object including gray-level information includes processing the gray-level information to identify a kernel of pixels in the image having respective gray-level values darker than a given kernel threshold. A locus of the pixels in the kernel is stored in a memory, along with the gray-level values of the pixels in the kernel, in order to reconstruct a gray-level image of the object by applying the stored gray-level values to the pixels in the locus.

    34.
    发明专利
    未知

    公开(公告)号:DE69503807D1

    公开(公告)日:1998-09-03

    申请号:DE69503807

    申请日:1995-05-11

    Applicant: IBM

    Inventor: ZLOTNICK AVIAD

    Abstract: PCT No. PCT/GB95/01073 Sec. 371 Date Aug. 27, 1997 Sec. 102(e) Date Aug. 27, 1997 PCT Filed May 11, 1995 PCT Pub. No. WO96/18971 PCT Pub. Date Jun. 20, 1996A technique for decoding a barcode from an image of the barcode in the form of an array of pixels stored in digital form by determining a series of bar start and bar end locations from the image. An optimization technique is used to select the bar start and bar end locations for the series by finding an extremum in a predefined target function. The target function is a function of the number of rows of pixels in the image in which runs of black or white pixels start or end at particular locations in the rows.

    35.
    发明专利
    未知

    公开(公告)号:DE69316158D1

    公开(公告)日:1998-02-12

    申请号:DE69316158

    申请日:1993-10-09

    Applicant: IBM

    Abstract: A system and method are disclosed for recognizing the type of an electronically stored image of a document. The method is composed by two parts: form signature computation, and signature matching. For form acquisition, signatures of forms are computed and stored in a template data base. For recognition, the signature of the input form is computed, and the best match between it and the signatures in the template data base is found. The input form is then considered to be the same as the form from which the best matching signature was computed.

    Determining the type of document image

    公开(公告)号:GB2272594A

    公开(公告)日:1994-05-18

    申请号:GB9223116

    申请日:1992-11-04

    Applicant: IBM

    Abstract: A system and method are disclosed for recognizing the type of an electronically stored image of a document. The method is composed by two parts: form signature computation, and signature matching. For form acquisition, signatures of forms are computed and stored in a template data base. For recognition, the signature of the input form is computed, and the best match between it and the signatures in the template data base is found. The input form is then considered to be the same as the form from which the best matching signature was computed.

    37.
    发明专利
    未知

    公开(公告)号:DE60134271D1

    公开(公告)日:2008-07-10

    申请号:DE60134271

    申请日:2001-08-16

    Applicant: IBM

    Inventor: ZLOTNICK AVIAD

    Abstract: A method for processing images includes receiving a group of the images having similar characteristics, the group comprising multiple classes, such that each image belongs to one of the classes and comprises a fixed portion common to all of the images in the class to which it belongs, and a variable portion, which distinguishes the image from the other images in the class. A reference area is found in the images, in which the fixed portion of the images in a first one of the classes differs consistently from the fixed portion of the images in a second one of the classes. The images are sorted into the classes based on the reference area.

    38.
    发明专利
    未知

    公开(公告)号:DE60133539D1

    公开(公告)日:2008-05-21

    申请号:DE60133539

    申请日:2001-02-25

    Applicant: IBM

    Abstract: A method for processing an input image includes applying one or more transformations to the input image, whereby different shifts are applied to different pixels in the input image, so as to generate an output image. A region containing content of interest is selected in the output image, and the region corresponding to the selected region in the output image is located in the input image. The content of the located region in the input image is substituted for the content of the selected region in the output image.

    39.
    发明专利
    未知

    公开(公告)号:AT383625T

    公开(公告)日:2008-01-15

    申请号:AT01908074

    申请日:2001-02-21

    Applicant: IBM

    Inventor: ZLOTNICK AVIAD

    Abstract: A method for binarizing a gray-level input image including a plurality of pixels having respective gray-level values. A lower threshold and an upper threshold are determined. A first binary value is assigned to the pixels in the gray-level image having gray-level values above the upper threshold, and a second binary value is assigned to the pixels in the gray-level image having gray-level values below the lower threshold. The pixels in an intermediate group having gray-level values between the lower and upper thresholds are processed so as to determine optimal assignments of the pixels in the intermediate group to the first and second binary values.

    CORRECTION OF DISTORTIONS IN FORM PROCESSING

    公开(公告)号:CA2397872C

    公开(公告)日:2007-02-06

    申请号:CA2397872

    申请日:2001-02-25

    Applicant: IBM

    Abstract: A method for processing an input image (20) includes applying one or more transformations (50) to the input image, whereby different shifts are applied to different pixels in the input image, so as to generate an output image (Fig. 3). A region (22) containing content (24) of interest is selected in the output image, and the region corresponding to the selected region in the output image is located in the input image. The content of the locate d region in the input image is substituted for the content of the selected region in the output image.

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