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    22.
    发明专利
    未知

    公开(公告)号：DE69530566T2

    公开(公告)日：2004-03-25

    申请号：DE69530566

    申请日：1995-01-13

    Applicant: ST MICROELECTRONICS SRL

    Inventor： MANCUSO MASSIMO ,  MORETTI PAOLO ,  POLUZZI RINALDO ,  RIZZOTTO GIANGUIDO

    IPC: G06T7/60 ,  G06K9/46

    Abstract: A fuzzy method for the recognition of geometric shapes in images, the particularity whereof is that it comprises the following steps: recognition of at least one edge of a curve of an image; recognition of the gradient of the edge; correction of the gradient by virtue of first fuzzy means; and determination of the number of points that belong to the curve by virtue of second fuzzy means. The process according to the present invention is performed by a fuzzy device for the recognition of geometric shapes in images that comprises: an edge detector, adapted to recognize at least one edge of a curve of an image and adapted to recognize the gradient of the edge; a fuzzy gradient corrector, adapted to correct said gradient; a fuzzy vote attributor, adapted to determine the number of points that belong to the curve.

    23.
    发明专利
    未知

    公开(公告)号：DE69720192T2

    公开(公告)日：2003-12-04

    申请号：DE69720192

    申请日：1997-05-30

    Applicant: ST MICROELECTRONICS SRL

    Inventor： MANCUSO MASSIMO ,  POLUZZI RINALDO

    IPC: G06T9/00 ,  H04N1/41 ,  H04N7/26 ,  H04N7/30

    Abstract: A post-processing method for reducing artifacts in block-coded digital images, characterized by providing for: dividing an input image (In) into a plurality of image blocks (IB); for each image block (IB), estimating global features (GF) of said image block providing information on an average content of image edges along the horizontal and vertical directions of said image block (IB); for each pixel (Px) of an image block (IB) under examination, estimating local features (LF) for said pixel (Px) providing information on the content of image edges along the horizontal and vertical directions of an image area near said pixel (Px); modifying the value of said pixel (Px) according to both said global features (GF) of the image block (IB) to which said pixel (Px) belongs and said local features (LF) of the image area near said pixel (Px).

    24.
    发明专利
    未知

    公开(公告)号：DE69720192D1

    公开(公告)日：2003-04-30

    申请号：DE69720192

    申请日：1997-05-30

    Applicant: ST MICROELECTRONICS SRL

    Inventor： MANCUSO MASSIMO ,  POLUZZI RINALDO

    IPC: G06T9/00 ,  H04N1/41 ,  H04N7/26 ,  H04N7/30

    Abstract: A post-processing method for reducing artifacts in block-coded digital images, characterized by providing for: dividing an input image (In) into a plurality of image blocks (IB); for each image block (IB), estimating global features (GF) of said image block providing information on an average content of image edges along the horizontal and vertical directions of said image block (IB); for each pixel (Px) of an image block (IB) under examination, estimating local features (LF) for said pixel (Px) providing information on the content of image edges along the horizontal and vertical directions of an image area near said pixel (Px); modifying the value of said pixel (Px) according to both said global features (GF) of the image block (IB) to which said pixel (Px) belongs and said local features (LF) of the image area near said pixel (Px).

    26.
    发明专利
    未知

    公开(公告)号：DE69736347D1

    公开(公告)日：2006-08-31

    申请号：DE69736347

    申请日：1997-05-09

    Applicant: ST MICROELECTRONICS SRL

    Inventor： MANCUSO MASSIMO ,  D ALTO VIVIANA ,  POLUZZI RINALDO ,  AIROLDI FABRIZIO

    IPC: H04N1/40 ,  H04N5/225 ,  H04N5/91 ,  H04N5/92

    Abstract: Digital photography apparatus (100), particularly a digital still camera, comprising means (110-125) for acquiring a digital image, compression means (130) for obtaining a compressed image, and a memory (135) for storing the compressed image, the apparatus also including processing means (140) for obtaining a processed image and corresponding processing parameters from the image acquired, the processing means (140) supplying as an output, in a first operative condition, the processed image to be compressed by the compression means (130) and, in a second operative condition, the image acquired to be compressed by the compression means (130) and the processing parameters to be stored in the memory (135).

    27.
    发明专利
    未知

    公开(公告)号：DE69433225D1

    公开(公告)日：2003-11-13

    申请号：DE69433225

    申请日：1994-04-27

    Applicant: ST MICROELECTRONICS SRL ,  CONS RIC MICROELETTRONICA

    Inventor： MANCUSO MASSIMO ,  POLUZZI RINALDO ,  RIZZOTTO GIANGUIDO

    IPC: H04N5/92 ,  H04N5/44 ,  H04N9/80 ,  H04N11/20 ,  H04N1/00

    Abstract: A television signal scanning conversion device of the type comprising at least one filtering block (3) having a plurality of digital inputs (Pi, X) which receive through an interface (2) components (X, Pi) of an interlaced television signal comprises also at least one calculation block (CALC1) connected to the signal inputs and operating with fuzzy logic. Said calculation block is capable of executing a switch between at least two different interpolation procedures, to wit interfield and intrafield.

    28.
    发明专利
    未知

    公开(公告)号：DE69530566D1

    公开(公告)日：2003-06-05

    申请号：DE69530566

    申请日：1995-01-13

    Applicant: ST MICROELECTRONICS SRL

    Inventor： MANCUSO MASSIMO ,  MORETTI PAOLO ,  POLUZZI RINALDO ,  RIZZOTTO GIANGUIDO

    IPC: G06T7/60 ,  G06K9/46

    Abstract: A fuzzy method for the recognition of geometric shapes in images, the particularity whereof is that it comprises the following steps: recognition of at least one edge of a curve of an image; recognition of the gradient of the edge; correction of the gradient by virtue of first fuzzy means; and determination of the number of points that belong to the curve by virtue of second fuzzy means. The process according to the present invention is performed by a fuzzy device for the recognition of geometric shapes in images that comprises: an edge detector, adapted to recognize at least one edge of a curve of an image and adapted to recognize the gradient of the edge; a fuzzy gradient corrector, adapted to correct said gradient; a fuzzy vote attributor, adapted to determine the number of points that belong to the curve.

    29.
    发明专利
    未知

    公开(公告)号：DE69623253D1

    公开(公告)日：2002-10-02

    申请号：DE69623253

    申请日：1996-03-07

    Applicant: ST MICROELECTRONICS SRL

    Inventor： MANCUSO MASSIMO ,  POLUZZI RINALDO

    IPC: G06T5/20 ,  H04N5/14 ,  H04N5/213 ,  H04N5/21

    Abstract: A processing device for video signals comprising: a memory device (1) suitable to store discrete image elements of a video field; a filtering device (3) supplied by the memory device and suitable to recover errors introduced by the memory device. The filtering device (3) comprises: a filter (4) having an input supplied with digital signals representative of values of a plurality of discrete image elements (P1...P8,X) comprising an image element (X) to be examined and neighbouring image elements (P1...P8), the discrete image elements being stored in the memory device (1), and an output supplying digital signals (CO) representative of a filtered value of the image element to be examined (X); noise detector means (5) operating on fuzzy-logic rules having an input supplied with the digital signals representative of the plurality of values of the image elements (P1...P8,X) and an output supplying a weight signal (K) representative of a degree of erroneousness of the discrete image element to be examined (X), the noise detector circuit (5) determining the degree of erroneousness comparing the value of the image element to be examined (X) with the values of the neighbouring image elements (P1...P8); soft-switch means (7) having a first input supplied with the digital signals representative of the value of the image element to be examined (X), a second input supplied with the output (CO) of the filter (4), a third input supplied with the weight signal (K), and an output supplying digital signals (O) representative of a weighted average of the output of the filter (CO) and of the digital signals representative of the value of the image element to be examined (X) according to respective weights determined by the degree of erroneousness.

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