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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
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.
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2.发明专利
公开(公告)号：JPH10336490A
公开(公告)日：1998-12-18
申请号：JP12835998
申请日：1998-05-12
Applicant: ST MICROELECTRONICS SRL
Inventor： MANCUSO MASSIMO , D ALTO VIVIANA , SIRTORI DANIELE , POLUZZI RINALDO
Abstract: PROBLEM TO BE SOLVED: To suppress noise affected on a specific area of a field scanned by the unit of lines by replacing a pixel having noise with an average pixel value of a nearby pixel belonging to a prescribed processing window. SOLUTION: A difference calculation circuit calculates a difference Di (D1-D7) between luminance values Xi (X1-X7) of a pixel adjacent to a processing pixel value X of a processing window. Then a Dmax &Dmin detection block identifies a maximum value and a minimum value of a received difference Di. Upon the receipt of the Dmax and Dmin by an adaptive threshold level detection processing block adopting a 1st fuzzy logic, they are referenced as a membership 1 and corresponding values to the threshold levels Th1, Th2 are generated. Then a local adaptive noise smoothing processing block adopting a 2nd fuzzy block generates a set of output values Ki based on the threshold level parameters Th1, Th2 referenced by a membership 2 and generated before. A final filter block generates a pixel Xout as a sum of weighting factors.
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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
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.
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公开(公告)号：JPH07152569A
公开(公告)日：1995-06-16
申请号：JP17690794
申请日：1994-07-28
Applicant: ST MICROELECTRONICS SRL
Inventor： PAGNI ANDREA , POLUZZI RINALDO , RIZZOTTO GIANGUIDO
Abstract: PURPOSE: To greatly reduce a storage area for storing belonging relation functions from the IF portion of a fuzzy rule and the calculation operation of a THEN portion by providing a conversion block in an input part and providing at least one memory block for storing information relating to the IF conditions of an IF-THEN rule set in the conversion block. CONSTITUTION: The conversion block 5 for forming this input part of an electronic controller operated in a fuzzy logic form is provided with the memory block 6 and the memory block 6 stores data relating to the belonging relation functions relating to the IF portion of the fuzzy rule. The memory block 6 is divided into an imaging area 7 and an activating area 8. The imaging area 7 is provided with the set of the belonging relation functions relating only to the IF conditions in the IF-THEN rule set and the activating area 8 is provided with the data for relating the respective logic variables of a fuzzy type relating to a control process to the corresponding ones of the belonging relating functions in the set.
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公开(公告)号：JPH11312239A
公开(公告)日：1999-11-09
申请号：JP37282398
申请日：1998-12-28
Applicant: ST MICROELECTRONICS SRL
Inventor： COLLA FEDERICA , MANCUSO MASSIMO , POLUZZI RINALDO
Abstract: PROBLEM TO BE SOLVED: To provide a digital image color correcting device for correcting facial tone image parts of a digital video image by adopting fuzzy logic. SOLUTION: This device includes a pixel fuzzy fine unit 1 for receiving a pixel stream belonging to a sequence of correlated frames of a digital video image and for calculating a multilevel value representing the membership of each pixel with respect to a skin color class, a global parameter estimator 2 for receiving each pixel and a relative membership value and for calculating first and second parameters regulating the feature of an image belonging to the skin color class, a processing unit 3 for correcting each of the pixels of the part of the image belonging to the skin color class according to the first global parameter, and a processing switch 4 for outputting pixels or corrected pixels in accordance with the second global parameter.
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Patent Agency Ranking
公开(公告)号：JP2756420B2
公开(公告)日：1998-05-25
申请号：JP3357595
申请日：1995-02-22
Applicant: ST MICROELECTRONICS SRL
Inventor： MANUSO MASSIMO , POLUZZI RINALDO , RIZZOTTO GIANGUIDO
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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
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.
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公开(公告)号：JPH07141184A
公开(公告)日：1995-06-02
申请号：JP12784094
申请日：1994-06-09
Applicant: ST MICROELECTRONICS SRL , CONS RIC MICROELETTRONICA
Inventor： RUSSO BIAGIO , POLUZZI RINALDO , LUZZI CLAUDIO
Abstract: PURPOSE: To perform an operation at a high calculation speed and at the high degree of a resolution while making a required storage capacity for a hardware to carry out a belonging relation function extremely small. CONSTITUTION: This electronic controller 1A is provided with a buffer part 8 for reproducing the effective value of the belonging relation function and extracting prescribed weight included in the inference rule of fuzzy logic calculation between a storage part 5A for storing a plurality of values of the belonging relation function and the calculation part 6. The storage part 5A is a size corresponding to a large number of non-zero values of the belonging relation function related to a selected point among the finite number of points and the selected point is provided with the maximum number of the non-zero value.
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公开(公告)号：JPH11168703A
公开(公告)日：1999-06-22
申请号：JP11564598
申请日：1998-04-24
Applicant: ST MICROELECTRONICS SRL
Inventor： MANCUSO MASSIMO , D ALTO VIVIANA , POLUZZI RINALDO , MOLINARI LUCA
Abstract: PROBLEM TO BE SOLVED: To obtain a compensation field rate up method by evaluating an error function for each pair of image blocks, evaluating the extent of homogeneity property for each pair of estimation motion vectors, applying a fuzzy rule which has a start level for each pair of estimation motion vectors, deciding the best estimation motion vector of the pair and deciding an estimation motion vector of the image blocks. SOLUTION: A block C BUILD is supplied according to the output of a block FUZZY, an updating set is supplied to a component of a candidate motion vector C, and eight updating motion vectors are decided. An appropriate image block which is positioned by a motion vector that is selected by a block ADDGEN is decided, and the block ADDGEN is supplied by an output of a block VPROC and an output of the block C BUILD. Error function value that is related to eight updating motion vectors which are evaluated by a block SAD 2 is supplied to a block CSEL, and a motion vector related to image block is selected as an estimation motion vector.
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公开(公告)号：JPH1127672A
公开(公告)日：1999-01-29
申请号：JP14425098
申请日：1998-05-26
Applicant: ST MICROELECTRONICS SRL
Inventor： MANCUSO MASSIMO , POLUZZI RINALDO
Abstract: PROBLEM TO BE SOLVED: To reduce image quality deterioration by correcting a pixel value according to both an global feature of a video image block to which the pixel belongs and a local feature of video areas in the vicinity of the pixel so as to attenuate grating noise and stepwise noise. SOLUTION: A global feature GF and a local feature LF of an input video image In evaluated by a feature extract block FE is fed to a fuzzy processing block FUZZY as an input, and a parameter FA proper to decision of a type of filter processing is decided according to a fuzzy criterion. A filter pattern FP decided by a filter compensation block FC is fed to a processing block PROC to which the input video image In is directly supplied and the block PROC applies filter processing of the input video image In based on the filter pattern FP. Thus, low pass filter processing is applied to video areas in the vicinity of grating noise and an edge to reduce both grating noise and stepwise noise.
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