公开(公告)号：EP0790736A1

公开(公告)日：1997-08-20

申请号：EP96830061.6

申请日：1996-02-13

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

Inventor： Marques Pereira, Ricardo Alberto ,  Mancuso, Massimo ,  Poluzzi, Rinaldo

IPC: H04N5/44

CPC classification number: H04N7/012 ,  H04N7/0132

Abstract: An interpolation filter for video signals comprises: first circuit means (R1-R3,L1-L3,C,7-9) supplied by discrete image elements (p1-p10) for detecting an image edge; second circuit means (10) supplied by the first circuit means for generating a first signal (DDA) corresponding to an average of the discrete image elements (p1-p10) along a direction of the image edge; third circuit means (11,12,13) supplied by the first circuit means for detecting a texture image area wherein an image edge cannot be univocally determined and for generating a second signal (K) depending on a degree of existance of the image edge; fourth circuit means (14), supplied by the first signal (DDA), the second signal (K) and a third signal (Mout), for generating an output signal (SWout) obtained by combining the first signal (DDA) with the third signal (Mout) in a proportion determined by the second signal (K), and multiplexing means (15) controlled by a control signal (CNT) for selectively coupling the third signal (Mout) to fourth signal (A), corresponding to an average of the discrete image elements (p1-p10) along a prescribed direction, or to a fifth signal (PF) corresponding to a previously received image element value.

Abstract translation: 用于视频信号的内插滤波器包括：通过离散图像元素（P1-P10），用于检测图像边缘提供第一电路装置（R1-R3，L1-L3，C，7-9）; 由第一电路提供第二电路装置（10）装置，用于产生对应于平均沿着图像边缘的方向上的离散的图像元素（P1-P10）的第一信号（DDA）; 由第一电路提供第三电路装置（11,12,13）装置，用于检测一个纹理图像区域worin图像边缘不能单义地确定的开采和用于产生取决于度的图像边缘的脑干的第二信号（K）; 由第一信号（DDA），所述第二信号（K）和第三信号（MOUT）提供第四电路装置（14），用于在由第一信号（DDA）与所述第三组合而获得输出信号（SWOUT）产生 信号（MOUT）在由所述第二信号（K）开采确定性的比例，并且通过对所述第三信号（MOUT），以第四信号（A）选择性地耦合的控制信号（CNT）控制多路复用装置（15）对应于平均 沿着规定方向离散图像元素（P1-P10）的，或以对应于先前接收到的图像元素值的第五信号（PF）。

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。

公开(公告)号：EP0794512A1

公开(公告)日：1997-09-10

申请号：EP96830099.6

申请日：1996-03-07

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

Inventor： Mancuso, Massimo ,  Poluzzi, Rinaldo

IPC: G06T5/20 ,  H04N5/21

CPC classification number: H04N5/213 ,  G06T5/20 ,  H04N5/14

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.

Abstract translation: 一种用于视频信号的处理装置，包括：适于存储视频场的离散图像元素的存储器件（1）; 由存储装置提供并适于恢复由存储装置引入的错误的过滤装置（3）。 滤波装置（3）包括：滤波器（4），其具有输入代表包括待检查的图像元素（X）的多个离散图像元素（P1 ... P8，X）的值的数字信号的输入） 相邻图像元素（P1 ... P8），离散图像元素被存储在存储器件（1）中，以及输出提供表示待检查图像元素（X）的滤波值的数字信号（CO）; 噪声检测器装置（5）对具有表示图像元素（P1 ... P8，X）的多个值的数字信号的输入的模糊逻辑规则进行操作，以及提供加权信号（K）代表的输出 （X）的离散图像元素的错误程度，噪声检测器电路（5）确定将要检查的图像元素（X）的值与相邻图像元素的值进行比较的错误程度 （P1，...，P8）; 软开关装置（7）具有提供有表示待检查图像元素（X）的值的数字信号的第一输入，提供有滤波器（4）的输出（CO）的第二输入，第三输入 输入提供有加权信号（K）的输出，以及输出表示滤波器（CO）的输出的加权平均数字和表示待检查图像元素的值的数字信号的数字信号（O） X）根据由错误程度确定的各自的权重。

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：EP0722149A1

公开(公告)日：1996-07-17

申请号：EP95830002.2

申请日：1995-01-13

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

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

IPC: G06K9/46

CPC classification number: G06K9/4633

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.

Abstract translation: 用于识别图像中的几何形状的模糊方法，其特征在于它包括以下步骤：识别图像的曲线的至少一个边缘; 识别边缘的梯度; 凭借第一种模糊手段校正梯度; 并通过第二模糊手段确定属于曲线的点数。 根据本发明的方法由用于识别图像中的几何形状的模糊装置来执行，该模糊装置包括：边缘检测器，适于识别图像的曲线的至少一个边缘，并适于识别边缘的梯度 ; 模糊梯度校正器，适于校正所述梯度; 一个模糊投票属性，适用于确定属于曲线的点数。

公开(公告)号：EP0684726A1

公开(公告)日：1995-11-29

申请号：EP94830197.3

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: H04N1/00 ,  H04N5/44

CPC classification number: H04N7/012 ,  H04N7/0132

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.

Abstract translation: 一种包括至少一个具有通过接口（2）接收隔行电视信号的分量（X，Pi）的数字输入（Pi，X）的至少一个滤波块（3）的类型的电视信号扫描转换设备还包括 至少有一个计算模块（CALC1）连接到信号输入端并用模糊逻辑运行。 所述计算块能够在至少两个不同的插值过程之间执行切换，即在场间和场内。

公开(公告)号：EP0818932A1

公开(公告)日：1998-01-14

申请号：EP96830387.5

申请日：1996-07-09

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

Inventor： Thomas, Joseph ,  D'Alto, Viviana ,  Mancuso, Massimo

IPC: H04N9/64

CPC classification number: H04N9/646

Abstract: A circuit for enhancing chrominance transitions in a received chrominance video signal comprises linear-phase digital filter means (1) supplied with an input stream of discrete chromatic image elements (x(n-6)-x(n)) and having a high-pass transfer characteristic in a region of the frequency spectrum corresponding to an upper limit of a transmitted chrominance signal bandwidth for enhancing high-frequency components of the received chrominance signal (CIN), and non-linear digital post-processing means (2) supplied by an output (FOUT) of the filter means and by said input stream of discrete chromatic image elements, the non-linear post-processing means comprising first means (4) acting on said output of the filter means for eliminating distortions introduced in the received chrominance signal by the filter means and second means (3) for detecting if the received chrominance signal contain a transition pattern corresponding to predetermined patterns and for correspondingly forcing an output (COUT) of the circuit to be equal to the received chrominance signal.

Abstract translation: 一种用于增强接收的色度视频信号中的色度转换的电路包括提供有离散彩色图像元素（x（n-6）-x（n））的输入流的线性相位数字滤波器装置（1） 在与用于增强接收的色度信号（CIN）的高频分量的发送色度信号带宽的上限相对应的频谱的区域中的通过传递特性，以及非线性数字后处理装置（2）提供的非线性数字后处理装置 滤波器装置的输出（FOUT）和离散彩色图像元素的所述输入流，非线性后处理装置包括作用在滤波器装置的所述输出上的第一装置（4），用于消除所接收的色度中引入的失真 信号由滤波器装置和第二装置（3）检测接收到的色度信号是否包含对应于预定图案的过渡图案，并且相应地强制输出 ut（COUT）等于接收的色度信号。