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    45.
    发明专利
    未知

    公开(公告)号：DE69133175D1

    公开(公告)日：2003-01-23

    申请号：DE69133175

    申请日：1991-03-15

    Applicant: FUJITSU LTD

    Inventor： NODA TSUGIO ,  FUKUDA MASAHIRO ,  MURASHITA KIMITAKA

    IPC: G06F17/14 ,  G06F17/16 ,  H04N7/26 ,  H04N7/30

    Abstract: A dequantizer (616) obtains DCT coefficients by dequantizing the quantized DCT coefficient decoded by a decoder (612). An inverse DCT unit (620) receives the inverse DCT coefficient and stores the image data in a image data retainer (624). An adder (622) adds the image data output from the unit (620) with previous image data output from the image retainer. Independent claims are included for the following: (1) Image processing method; and (2) Image data restoring device.

    46.
    发明专利
    未知

    公开(公告)号：DE69132232D1

    公开(公告)日：2000-07-06

    申请号：DE69132232

    申请日：1991-03-15

    Applicant: FUJITSU LTD

    Inventor： NODA TSUGIO ,  FUKUDA MASAHIRO ,  MURASHITA KIMITAKA

    IPC: G06F17/14 ,  G06F17/16 ,  H04N7/26 ,  H04N7/30 ,  G06F17/00

    Abstract: A dequantizer (616) obtains DCT coefficients by dequantizing the quantized DCT coefficient decoded by a decoder (612). An inverse DCT unit (620) receives the inverse DCT coefficient and stores the image data in a image data retainer (624). An adder (622) adds the image data output from the unit (620) with previous image data output from the image retainer. Independent claims are included for the following: (1) Image processing method; and (2) Image data restoring device.

    47.
    发明专利
    未知

    公开(公告)号：DE69131808T2

    公开(公告)日：2000-03-16

    申请号：DE69131808

    申请日：1991-07-30

    Applicant: FUJITSU LTD

    Inventor： FUKUDA MASAHIRO ,  NODA TSUGIO ,  CHIBA HIROTAKA ,  MURASHITA KIMITAKA

    IPC: G06F17/14 ,  G06T9/00 ,  H04N7/26 ,  H04N7/30 ,  H04N7/50

    Abstract: The present invention relates to an image data reconstructing apparatus for reconstructing an original image by dividing image data into a plurality of blocks each comprising NXN picture elements, performing two-dimensional orthogonal transform on each of said blocks, quantizing and encoding the result of said transform, decoding the encoded result, dequantizing and two-dimensional inverse orthogonal transforming the above result, wherein an operation associated with the multiplication is skipped if a multiplication by zero is detected when two-dimensional inverse orthogonal transform is performed. Before performing dequantization, two block volume of buffer is provided before or after performing two-dimensional inverse orthogonal transform for executing a pipeline process. Furthermore, two-dimensional inverse orthogonal transform is performed by repeating two times a process of one-dimensional inverse orthogonal transform and matrix transposition, thus the matrix transposition being performed as the result of one-dimensional inverse orthogonal transform which is stored in buffer.

    Image display system
    49.
    发明专利
    Image display system 未知

    公开(公告)号：GB2314750B

    公开(公告)日：1998-12-09

    申请号：GB9625992

    申请日：1996-12-13

    Applicant: FUJITSU LTD

    Inventor： SUZUKI SHOJI ,  MORI MASAHIRO ,  NODA TSUGIO ,  SHIMIZU MASAYOSHI ,  CHIBA HIROTAKA ,  SAKAI KENICHIRO

    IPC: G06F3/147 ,  G09F9/35 ,  G09G3/00 ,  G09G5/00 ,  H04N5/74 ,  H04N9/12 ,  G06F3/00

    Abstract: Image data from an upper apparatus is compressed by a compressing unit, the compressed image data is transferred to a display apparatus by a printer interface of a low speed, and the original image data is reconstructed by a decoding unit and displayed. The display apparatus is a projector and auxiliarily displays a second picture plane into a first picture plane for presentation by an independent liquid crystal panel. A phase transition type liquid crystal panel of a number of pixels and a high resolution is used to display the first picture plane and the image data is compressed and transferred and is displayed. As a second picture plane, a personal computer picture plane is transferred and displayed as it is.

    50.
    发明专利
    未知

    公开(公告)号：DE69128054T2

    公开(公告)日：1998-02-26

    申请号：DE69128054

    申请日：1991-08-09

    Applicant: FUJITSU LTD

    Inventor： SUKUDA MASAHIRO ,  NODA TSUGIO

    IPC: H04N1/41 ,  G06T9/00 ,  H04N7/54 ,  H04N19/42 ,  H04N19/44 ,  H04N19/48 ,  H04N19/60 ,  H04N19/625 ,  H04N19/91 ,  H04N7/30

    Abstract: An image data reconstructing method and apparatus, adaptive to both progressive and sequential image buildup modes, reconstructs an orthogonally transformed image by dequantizing transform coefficients decoded from coded data of a continuous tone image, by causing the transform coefficients to have a common data structure through an attachment of a dummy signal representing a zero value DC element. The image data reconstructing method comprises a coded data decoding step, a common data structure one-dimensional quantized transform coefficient creating step, a one-to-two dimensional quantized transform coefficient transforming step, a dequantization threshold storing step, and a two-dimensional quantized transform coefficient dequantizing step. The image data reconstructing apparatus comprises a dummy signal generator for generating such dummy signals and a selector for selecting the dummy signals.

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