公开(公告)号：EP0848307A1

公开(公告)日：1998-06-17

申请号：EP96830619.1

申请日：1996-12-11

Applicant: SGS-THOMSON MICROELECTRONICS s.r.l.

Inventor： Di Giura, Maddalena ,  Pagni, Andrea ,  Poluzzi, Rinaldo ,  Rizzotto, Gianguido

IPC: G05B13/00 ,  H03H17/02

CPC classification number: H03H17/0261 ,  H03H2222/02

Abstract: The fuzzy filtering of a noise signal comprising a plurality of signal samples [s(t,k)] is carried out using as variables the variation of the signal in the considered window and the distance of the samples from a sample to be reconstructed, so as to distinguish the typical variations of the original signal from those due to the noise and to identify the signal fronts. The method comprises the steps of: defining a current signal sample [s(t)] from among the plurality of signal samples; calculating a plurality of difference samples [D(t,k)] as difference in absolute value between the current signal sample and each signal sample; defining distance values (k) between the current signal sample and each signal sample; determining weight parameters [P(k)] on the basis of the difference samples and the distance values by means of fuzzy logic; and weighing the signal samples with the weight parameters so as to obtain a reconstructed signal sample [o(t)].

Abstract translation: 使用包含多个信号样本Äs（t，k）Ü的噪声信号的模糊滤波使用所考虑的窗口中的信号的变化和样本与要重构的样本的距离作为变量进行，以便 以区分原始信号与由于噪声引起的信号的典型变化并识别信号前沿。 该方法包括以下步骤：从多个信号样本中定义当前信号样本Äs（t）Ü; 计算多个差分样本ÄD（t，k）Ü作为当前信号样本与每个信号样本之间的绝对值差; 定义当前信号样本和每个信号样本之间的距离值（k）; 基于差分样本和模糊逻辑的距离值确定权重参数ÄP（k）Ü; 并用权重参数称量信号样本，以便获得重建信号样本Äo（t）Ü。

公开(公告)号：EP0400748B1

公开(公告)日：1997-08-20

申请号：EP90201351.5

申请日：1990-05-29

Applicant: SGS-THOMSON MICROELECTRONICS s.r.l.

Inventor： Taliercio, Michele ,  Lavorgna, Mario ,  Poluzzi, Rinaldo ,  Rizzotto, Gianguido

IPC: G06F17/16

CPC classification number: G06F17/14 ,  G06F17/16

公开(公告)号：EP0710001A1

公开(公告)日：1996-05-01

申请号：EP94830521.4

申请日：1994-10-31

Applicant: SGS-THOMSON MICROELECTRONICS S.r.l.

Inventor： Pennino, Laura ,  Poluzzi, Rinaldo ,  Mancuso, Massimo ,  Rizzotto, Gianguido ,  Travaglia, Federico

IPC: H04N1/00 ,  G06T5/20

CPC classification number: G06T5/20 ,  H03H2222/02

Abstract: A filter performing a reduction of pulsed noise on video images in accordance with fuzzy logic of the type comprising an interface circuit (2) receiving at input consecutive digital signals in time corresponding to said video images and designed to generate an image window centred in a digital signal (X) to be processed.
Said filter comprises also a comparator block (3) having a plurality of input terminals coupled to output terminals of the interface circuit (2) through a plurality of digital subtractors (SDi) and a memory circuit (4) connected in cascade to the comparator block (3).
This circuit comprises a plurality of memory elements designed to store values of a parameter (Knoise) obtained on the basis of outputs of the comparator block (3) from a procedure performed with fuzzy logic procedures.
The filter (1) also comprises a filtering circuit (F) having inputs connected to some outputs of the interface circuit (2) and designed to organize the values of said inputs and an arithmetic block (5) having a first input terminal connected to an output terminal of the memory circuit (4) and a second input terminal designed to receive the digital signal (X) to be processed and a third input terminal connected to an output terminal of the filtering circuit (F) with this block being designed to perform a switch between the digital signal (X) to be processed and the output of the filtering circuit (F) on the basis of the values taken by the parameter (Knoise).

Abstract translation: 一种滤波器，其根据类型的模糊逻辑执行对视频图像上的脉冲噪声的降低，所述模糊逻辑包括接口电路（2），其在与所述视频图像相对应的时间上在时间上接收输入的连续数字信号，并且被设计为生成以数字 信号（X）被处理。 所述滤波器还包括具有通过多个数字减法器（SDi）耦合到接口电路（2）的输出端的多个输入端的比较器块（3）和与比较器块级联连接的存储器电路（4） （3）。 该电路包括多个存储器元件，其被设计为存储根据由模糊逻辑过程执行的过程基于比较器块（3）的输出获得的参数（Knoise）的值。 滤波器（1）还包括滤波电路（F），其具有连接到接口电路（2）的一些输出并被设计成组织所述输入的值的输入和具有连接到所述输入的第一输入端的算术块（5） 存储器电路（4）的输出端子和被设计为接收要处理的数字信号（X）的第二输入端子和连接到滤波电路（F）的输出端子的第三输入端子，该块被设计为执行 基于由参数（Knoise）取得的值，在要处理的数字信号（X）和滤波电路（F）的输出之间切换。

公开(公告)号：EP0705043A1

公开(公告)日：1996-04-03

申请号：EP94830470.4

申请日：1994-09-30

Applicant: SGS-THOMSON MICROELECTRONICS S.r.l.

Inventor： d'Alto, Viviana ,  Mancuso, Massimo ,  Poluzzi, Rinaldo ,  Rizzotto, Gianguido

IPC: H04N9/64 ,  H04N5/21

CPC classification number: H04N9/646 ,  H03H2222/02 ,  H04N5/21

Abstract: A device for filtering video images, of the type which comprises first and second circuit portions (3,4), each having first (PFy),(PFuv) and second (CFy),(CFuv) input terminals respectively adapted to receive digitalized luminance (Y) and chrominance (U,V) components of a television signal, and an output terminal coinciding with an output terminal of the device. The first and second circuit portions (3,4) further comprise first (5), second (6) and third (8) filters, cascade coupled to one another, and a fourth filter (9), respectively.
The first (5), second (6) and third (8) filters incorporate computational circuit means which use a logic of the fuzzy type to process the digitalized luminance component (Y). The fourth filter (9) comprises, on the other hand, computational circuit means which process the digitalized chrominance components (U,V) based upon a parameter (knr) supplied from the second filter (6).

Abstract translation: 一种用于过滤视频图像的装置，包括第一和第二电路部分（3,4），每个具有分别适于接收数字化亮度的第一（PFy），（PFuv）和第二（CFy），（CFuv） （Y）和色度（U，V）分量，以及与装置的输出端重合的输出端。 第一和第二电路部分（3,4）还包括分别彼此耦合的第一（5），第二（6）和第三（8）滤波器，以及第四滤波器（9）。 第一（5），第二（6）和第三（8）滤波器包括使用模糊类型的逻辑来处理数字化亮度分量（Y）的计算电路装置。 另一方面，第四滤波器（9）包括基于从第二滤波器（6）提供的参数（knr）处理数字化色度分量（U，V）的计算电路装置。

公开(公告)号：EP0647062B1

公开(公告)日：1998-08-05

申请号：EP93830402.9

申请日：1993-09-30

Applicant: SGS-THOMSON MICROELECTRONICS s.r.l. ,  Consorzio per la Ricerca sulla Microelettronica nel Mezzogiorno - CoRiMMe

Inventor： Mancuso, Massimo, c/o SGS-Thomson Microelect. Srl ,  Poluzzi, Rinaldo ,  Rizzotto, Gianguido

IPC: H04N5/20

CPC classification number: H04N5/20 ,  H03H2222/02

公开(公告)号：EP0400748A3

公开(公告)日：1991-10-23

申请号：EP90201351.5

申请日：1990-05-29

Applicant: SGS-THOMSON MICROELECTRONICS S.r.l.

Inventor： Taliercio, Michele ,  Lavorgna, Mario ,  Poluzzi, Rinaldo ,  Rizzotto, Gianguido

IPC: G06F15/31

CPC classification number: G06F17/14 ,  G06F17/16

Abstract: The method comprises two time steps of multiplication and accumulation, of which a first step is assigned to the product of the data and of the coefficient matrices and a second step is assigned to the subsequent product by the transposed coefficient matrix. Moreover preferably the data to be transformed and the corresponding coefficients are supplied to a first multiplication step in time succession, possibly after their storage in an appropriate memory. The device for the attainment of said method comprises two multipliers (31, 32) with their corresponding accumulator (33, 30), a RAM-type memory (34) for storing the data to be transformed and the transform coefficients, a multiplexer (39) which receives said data first from the input and then from the memory (34) and arranges them in a time succession for the supply to a first multiplier (31), and a shift register (38) which receives said transform coefficients from the memory (34) and arranges them for the supply to the second multiplier (32).

公开(公告)号：EP0400748A2

公开(公告)日：1990-12-05

申请号：EP90201351.5

申请日：1990-05-29

Applicant: SGS-THOMSON MICROELECTRONICS S.r.l.

Inventor： Taliercio, Michele ,  Lavorgna, Mario ,  Poluzzi, Rinaldo ,  Rizzotto, Gianguido

IPC: G06F15/31

CPC classification number: G06F17/14 ,  G06F17/16

Abstract: The method comprises two time steps of multiplication and accumulation, of which a first step is assigned to the product of the data and of the coefficient matrices and a second step is assigned to the subsequent product by the transposed coefficient matrix. Moreover preferably the data to be transformed and the corresponding coefficients are supplied to a first multiplication step in time succession, possibly after their storage in an appropriate memory.
The device for the attainment of said method comprises two multipliers (31, 32) with their corresponding accumulator (33, 30), a RAM-type memory (34) for storing the data to be transformed and the transform coefficients, a multiplexer (39) which receives said data first from the input and then from the memory (34) and arranges them in a time succession for the supply to a first multiplier (31), and a shift register (38) which receives said transform coefficients from the memory (34) and arranges them for the supply to the second multiplier (32).

Abstract translation: 该方法包括乘法和累积的两个时间步骤，其中第一步骤被分配给数据和系数矩阵的乘积，并且第二步骤通过转置的系数矩阵分配给后续乘积。 此外，优选地，要被变换的数据和对应的系数可能在它们存储在适当的存储器中之后被提供给第一乘法步骤。 用于实现所述方法的装置包括具有其对应的累加器（33,30）的两个乘法器（31,32），用于存储要变换的数据和变换系数的RAM型存储器（34），多路复用器（39） ），其首先从输入接收所述数据，然后从存储器（34）接收所述数据，并且以时间顺序排列它们以供给第一乘法器（31）;以及移位寄存器（38），其从存储器接收所述变换系数 （34），并且将它们排列供给第二乘法器（32）。

公开(公告)号：EP0698990A1

公开(公告)日：1996-02-28

申请号：EP94830408.4

申请日：1994-08-25

Applicant: SGS-THOMSON MICROELECTRONICS S.r.l. ,  CONSORZIO PER LA RICERCA SULLA MICROELETTRONICA NEL MEZZOGIORNO

Inventor： Pennino, Laura ,  Mancuso, Massimo ,  Travaglia, Federico ,  Poluzzi, Rinaldo ,  Rizzotto, Gianguido

IPC: H04N1/00 ,  G06T5/20

CPC classification number: G06T5/20

Abstract: Fuzzy device for image noise reduction, comprising: interface means adapted to retrieve the gray level of a pixel to be processed of an image and of neighbouring pixels; difference means connected to said interface means adapted to generate a difference of the gray levels between said neighbouring pixels and said pixels to be processed; fuzzy flat area smoothing means connected to said difference means adapted to perform a low-pass smoothing of an almost homogeneous region defined by said pixel and by said neighbouring pixels; edge preserving smoothing means connected to said difference means adapted to perform low-pass filtering on a high-pass information region defined by said pixel and by said neighbouring pixels; region voter means connected to said interface means adapted to give a measure for considering whether said region defined by said pixel and said neighbouring pixels is almost homogeneous; and soft switching means connected to the outputs of said smoothing means adapted to perform the weighting of the said outputs of said smoothing means on the basis of said measure.

Abstract translation: 用于图像噪声降低的模糊设备，包括：接口装置，适于检索要处理的图像和相邻像素的像素的灰度级; 连接到所述接口装置的差分装置，适于产生所述相邻像素与要处理的像素之间的灰度级差; 连接到所述差分装置的模糊平坦区域平滑装置，适于执行由所述像素和所述相邻像素限定的几乎均匀的区域的低通平滑; 连接到所述差分装置的边缘保持平滑装置，适于对由所述像素和所述相邻像素定义的高通信息区域执行低通滤波; 连接到所述接口装置的区域选择器装置，适于提供用于考虑由所述像素和所述相邻像素定义的所述区域是否几乎均匀的度量; 以及连接到所述平滑装置的输出的软开关装置，其适于基于所述测量执行所述平滑装置的所述输出的加权。 $$

公开(公告)号：EP0680224A1

公开(公告)日：1995-11-02

申请号：EP94830196.5

申请日：1994-04-27

Applicant: CO.RI.M.ME. CONSORZIO PER LA RICERCA SULLA MICROELETTRONICA NEL MEZZOGIORNO ,  SGS-THOMSON MICROELECTRONICS S.r.l.

Inventor： Mancuso, Massimo ,  Poluzzi, Rinaldo ,  Rizzotto, Gianguido

IPC: H04N9/64 ,  H04N5/21 ,  H04N5/44

CPC classification number: H04N7/012 ,  H03H2222/02 ,  H04N5/21 ,  H04N7/0132 ,  H04N9/646 ,  Y10S706/90

Abstract: A filter architecture for high-resolution video applications of the type comprising at least one filter block (3) having a plurality of digital inputs (Pi, X) which receive through an interface (2) components (U, V, Y) of a television signal and some outputs (NR) through which to take the result of a filtering operation for noise associated with the television signal also comprises in the filter block (3) at least one interpolator block connected to said inputs and operating with fuzzy logic to execute a television signal scanning conversion to be presented on additional outputs (SRC) of the filter block (3).

Abstract translation: 一种用于高分辨率视频应用的滤波器架构，其包括具有多个数字输入（Pi，X）的至少一个滤波器块（3），所述至少一个滤波器模块（3）通过接口（2）接收（2）组件（U，V，Y） 电视信号和一些输出（NR），通过该输出来获得与电视信号相关联的噪声的滤波操作的结果，还在滤波器块（3）中还包括连接到所述输入的至少一个内插器块，并以模糊逻辑运行以执行 在过滤块（3）的附加输出（SRC）上呈现电视信号扫描转换。

公开(公告)号：EP0669598A1

公开(公告)日：1995-08-30

申请号：EP94830092.6

申请日：1994-02-28

Applicant: SGS-THOMSON MICROELECTRONICS S.r.l.

Inventor： Mancuso, Massimo ,  Poluzzi, Rinaldo ,  Rizzotto, Gianguido

IPC: G06T5/20

CPC classification number: G06T5/20 ,  H03H2222/02

Abstract: Filter achieving noise reduction and digital signal image edge exaltation comprising first and second noise reduction circuit means 2 and 3 designed to elect an image edge. Said first and second noise reduction circuit means 2 and 3 comprise each a first and second comparison element (S1,S2,S3,S4) whose input terminals are designed to receive separate digital signals of an image and an inferential circuit (C1,C2) connected to said comparison elements.
Each inferential circuit (C1,C2) comprises a fuzzy logic unit designed to define activation levels (Vi) dependent upon signals generated by the comparison elements. The filter (1) comprises also a noise detection circuit (4) and an image edge detection circuit (6) both connected to the noise reduction circuit means (2,3) and designed to perform operations in accordance with fuzzy logic rules on the basis of activation levels (Vi) defined in the inferential circuits (C1,C2).
The filter 1 also includes a noise reduction circuit (5) connected to the noise detection circuit (6) and designed to filter the digital image signals on the basis of the operations performed by the circuit (4). In the filter (1) is also included an image edge exalting circuit (7) connected to the noise reduction circuit (5) and to the image edge detection circuit (4) designed to perform on filtered digital image signals an image edge exaltation on the basis of the operations performed by the image edge detection circuit (6).

Abstract translation: 实现滤波器降噪和数字信号的图像边缘提高包含第一和第二噪声减小电路装置2和3的设计，选出一个图像边缘。 所述第一和第二噪声减小电路装置2和3的每一个包括第一和第二比较元件（S1，S2，S3，S4），其输入端被设计为接收图像的和来推理电路单独的数字信号（C1，C2） 连接到所述比较元素。 每个推理电路（C1，C2）包括设计成限定活化水平（六）取决于由所述比较元件产生的信号的模糊逻辑单元。 所述过滤器（1）因此，包括一个噪声检测电路（4）和一个图像边缘检测电路（6）两者都连接到噪声减小电路装置（2,3），并设计成与基于模糊逻辑规则执行雅舞蹈操作 在推理电路（C1，C2）定义的激活水平（VI）。 过滤器1因此包括连接到所述噪声检测电路（6），并设计成由所述电路进行的操作的基础上的数字图像信号滤波器的噪声降低电路（5）（4）。 因此，在所述过滤器（1）被包含在图像边缘高举电路（7），连接到所述噪声减小电路（5）和所述图像的边缘检测电路（4）设计为在对图像的边缘提高的滤波的数字图像信号执行 由图像边缘检测电路（6）执行的操作的基础。