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    DIGITAL SIGNAL FILTER FOR IMAGE, IMAGE FILTER AND METHOD OF FILTERING IMAGE FOR FILM
    1.
    发明专利
    DIGITAL SIGNAL FILTER FOR IMAGE, IMAGE FILTER AND METHOD OF FILTERING IMAGE FOR FILM 失效

    公开(公告)号：JPH07240858A

    公开(公告)日：1995-09-12

    申请号：JP23539494

    申请日：1994-09-29

    Applicant: ST MICROELECTRONICS SRL ,  CONS RIC MICROELETTRONICA

    Inventor： MANCUSO MASSIMO ,  POLUZZI RINALDO ,  RIZZOTTO GIANGUIDO

    IPC: H03H17/02 ,  H04N5/20

    Abstract: PURPOSE: To provide a filter architecture optimizable and easily executable by using fuzzy logic. CONSTITUTION: This filter is provided with a filter circuit 2 for separating high band components and low band components from input signals for video images, a brilliance estimating circuit 6 for obtaining the mean brilliance value of respective plural sections for which the video images are divided, first and second video characteristic adjustment circuits 4 and 5 for changing the high band components and the low band components in response to the mean brilliance value and a totaling circuit 36 for combining the changed high band components and low band components and generating filtered video signals.

    FILTER
    2.
    发明专利
    FILTER 失效

    公开(公告)号：JPH07298101A

    公开(公告)日：1995-11-10

    申请号：JP29325394

    申请日：1994-11-28

    Applicant: ST MICROELECTRONICS SRL ,  CONS RIC MICROELETTRONICA

    Inventor： MANCUSO MASSIMO ,  POLUZZI RINALDO ,  RIZZOTTO GIANGUIDO

    IPC: G06F9/44 ,  G06N7/02 ,  G06T5/00 ,  H03H17/00 ,  H04N5/21 ,  H04N5/93 ,  H03H17/02

    Abstract: PURPOSE: To attain noise reduction through a filter for filtering only the noise- containing signal sections in digital video signals. CONSTITUTION: Each circuit means is operated by a fuzzy logic and provided with inference circuits (look-up tables) C1 and C2 and digital subtracters S1-S4. Each subtracter has an input terminal and is provided for receiving an individual digital video signal for reporting information concerning the pixel to be processed. The number of circuit means included in a filter 1 depends on the size of an image to be processed, and secondly, depends on the number of directions under the operation of a line operator. While using fuzzy type logic rules, a noise calculation circuit 4 compares trigger levels determined in the circuits C1 and C2 with such a trigger level. Thus, noise contained in the digital video signal are reduced effectively.

    TELEVISION SIGNAL SCANNING CONVERTER
    3.
    发明专利
    TELEVISION SIGNAL SCANNING CONVERTER 失效

    公开(公告)号：JPH07298301A

    公开(公告)日：1995-11-10

    申请号：JP10261595

    申请日：1995-04-26

    Applicant: CONS RIC MICROELETTRONICA ,  ST MICROELECTRONICS SRL

    Inventor： MANCUSO MASSIMO ,  POLUZZI RINALDO ,  RIZZOTTO GIANGUIDO

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

    Abstract: PURPOSE: To provide high resolution of video and to eliminate the defects of conventional techniques by providing a calculation block which is connected to an input terminal and operated by a fuzzy-logic based processing method and which executes a switch between at least two different interpolation processing methods. CONSTITUTION: For a TV signal scanning converting device 1, luminance/ chrominance signals CFy and CFuv and signals PFy and PFuv corresponding to image fields are inputted to an interface(IF) 2. The IF 2 is operated with a fuzzy logic and supplies TV signals components Xy and Piy to input terminals Pi and X of a filtering block 3. A calculation block CALC1 is operated with a fuzzy logic processing method, receives a luminance component Y and detects the front and motion of a TV signal, while utilizing information in two continuous image fields. On the other hand, an arithmetic block 5 inputs an average parameter, which is calculated based on pixels (Pi , Pj and x) of image fields, to the calculation block CALC1 . A block MAX calculates and outputs the peak value of plural signals to be inputted.

    FUZZY LOGIC DEVICE FOR REDUCTION OF IMAGE NOISE
    4.
    发明专利
    FUZZY LOGIC DEVICE FOR REDUCTION OF IMAGE NOISE 失效

    公开(公告)号：JPH08190628A

    公开(公告)日：1996-07-23

    申请号：JP20877595

    申请日：1995-08-16

    Applicant: ST MICROELECTRONICS SRL ,  CONS RIC MICROELETTRONICA

    Inventor： PENNINO LAURA ,  MANCUSO MASSIMO ,  TRAVAGLIA FEDERICO ,  POLUZZI RINALDO ,  RIZZOTTO GIANGUIDO

    IPC: G06F9/44 ,  G06N7/02 ,  G06T5/00 ,  G06T5/20

    Abstract: PROBLEM TO BE SOLVED: To perform an excellent noise reduction operation while preserving useful high-pass (high band) information. SOLUTION: This device is provided with an interface 1 for obtaining the gray levels of the pixel to be processed of images and the adjacent pixel, a difference circuit 2 for generating the difference of the gray levels of the pixel to be processed and the adjacent pixel, a fuzzy flat area smoothing circuit 8 for performing the low-pass (low band) smoothing of an almost uniform area stipulated by the pixel and the adjacent pixel, an edge preservation smoothing circuit 9 for performing a low-pass filtering processing to a high frequency information area stipulated by the pixel and the adjacent pixel, an area voter circuit 4 for supplying a measurement value for examining whether or not the area stipulated by the pixel and the adjacent pixel is almost uniform and a soft switching circuit 10 for weighting the output of the smoothing circuits 8 and 9 based on the measurement value.

    FILTER STRUCTURE AND WAVE-FILTRATION METHOD
    5.
    发明专利
    FILTER STRUCTURE AND WAVE-FILTRATION METHOD 失效

    公开(公告)号：JPH08102873A

    公开(公告)日：1996-04-16

    申请号：JP10261495

    申请日：1995-04-26

    Applicant: CONS RIC MICROELETTRONICA ,  ST MICROELECTRONICS SRL

    Inventor： MANCUSO MASSIMO ,  POLUZZI RINALDO ,  RIZZOTTO GIANGUIDO

    IPC: H03H21/00 ,  H04N5/21 ,  H04N5/44 ,  H04N9/64

    Abstract: PURPOSE: To reduce noise of a television signal and also perform simultaneous scan conversion by including a noise reducing circuit and a simultaneous scan conversion circuit of a TV signal. CONSTITUTION: A filter archtecture is provided with at least one filter 3 which has plural digital inputs Pi and X that receive television signal elements through an interface and also has a few outputs NR and includes at least one interpolating block which takes a result of a filtering operation for noise that is associated with a television signal by the outputs NR, is connected to an input in the filter 3, also operates in fuzzy theory and executes scan conversion of a television signal that should be presented to other outputs SRC of the filter 3.

    7.
    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.

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