公开(公告)号：EP1353518A1

公开(公告)日：2003-10-15

申请号：EP02425218.1

申请日：2002-04-09

Applicant: STMicroelectronics S.r.l.

Inventor： Curti, Salvatore ,  Sirtori, Daniele

IPC: H04N13/00

CPC classification number: H04N13/261 ,  H04N13/122 ,  H04N13/128 ,  H04N13/239 ,  H04N13/286 ,  H04N2013/0081

Abstract: To generate, from at least on monocular image (12), at least one image with stereoscopic effect (18, 20), a depth map is provided (14) of said monocular image (a). The depth map in question defines a mapping of the objects present in the monocular image in relation to their spatial position in the direction of depth. For the pixels included in the monocular image and as a function of the depth map, respective parallax values are determined (16) indicative of a respective quantity of movement by which each pixel must be moved in the image with stereoscopic effect (18, 20) in relation to the monocular image (12). A movement corresponding to the respective quantity thus defined is then applied to the pixels of the monocular image (12), if necessary dividing it between two images of a stereoscopic pair (18, 20). Post-processing (22) of the image generated is also envisaged, to eliminate artifacts such as superimposed areas between moved pixels, a lateral edge of the image or gaps between objects included in said image generated as a result of the aforesaid movement of pixels.

Abstract translation: 为了从至少在单眼图像（12）上产生具有立体效果的至少一个图像（18,20），提供所述单目图像（a）的深度图（14）。 所讨论的深度图定义了相对于其在深度方向上的空间位置的存在于单目图像中的物体的映射。 对于包括在单目图像中的像素和作为深度图的函数，确定各自的视差值（16），其指示每个像素必须以立体效果在图像中移动的相应的移动量（18,20） 相对于单目图像（12）。 如果需要，将对应于如此定义的相应数量的运动应用于单目图像（12）的像素，如果需要，则将它分割成立体对（18,20）的两个图像。 还设想了生成的图像的后处理（22），以消除诸如移动的像素之间的叠加区域，图像的横向边缘或由于像素的上述移动而产生的所述图像中包括的对象之间的间隙之间的假象。

公开(公告)号：EP1267575B1

公开(公告)日：2006-11-29

申请号：EP01830397.4

申请日：2001-06-14

Applicant: STMicroelectronics S.r.l.

Inventor： Sirtori, Daniele ,  Maravita, Matteo

IPC: H04N7/01 ,  H04N5/44 ,  H04N7/26

CPC classification number: H04N7/012

公开(公告)号：EP0878776A1

公开(公告)日：1998-11-18

申请号：EP97830217.2

申请日：1997-05-12

Applicant: STMicroelectronics S.r.l.

Inventor： Mancuso, Massimo ,  D'Alto, Viviana ,  Sirtori, Daniele ,  Poluzzi, Rinaldo

IPC: G06T1/00 ,  G06T5/20

CPC classification number: G06T5/20

Abstract: The level of Gaussian noise in a memory field being scanned by rows is reduced by reconstructing each pixel by fuzzy logic processors, the latter processing the the values of pixels neighbouring the pixel being processed and belonging to a processing window defined by the last scanned row and the row being scanned, thus minimizing the memory requisite of the filtering system to a single row. The system perform an adaptive filtering within the current field itself and does not produce edge-smoothing effects as in prior adaptive filtering systems operating on consecutive fields.

Abstract translation: 通过用模糊逻辑处理器重建每个像素来减少由行扫描的存储器场中的高斯噪声的水平，后者处理与正在处理的像素相邻的像素的值，并且属于由最后扫描行定义的处理窗口， 该行被扫描，从而将过滤系统的存储器必需度最小化到单个行。 该系统在当前字段本身内执行自适应滤波，并且不产生像在连续字段上操作的先前的自适应滤波系统中的@边缘平滑效应。

公开(公告)号：EP1496704A1

公开(公告)日：2005-01-12

申请号：EP03015269.8

申请日：2003-07-07

Applicant: STMicroelectronics S.r.l.

Inventor： Sirtori, Daniele ,  Pau, Danilo Pietro ,  Gardella, Pierluigi ,  Barone, Massimiliano ,  Falchetto, Mirko

IPC: H04N7/26

CPC classification number: G06T15/005 ,  G06T9/001 ,  H04N19/29 ,  H04N19/31 ,  H04N19/42 ,  H04N19/517 ,  H04N19/537 ,  H04N19/577 ,  H04N19/587

Abstract: A graphic system comprising a pipelined tridimensional graphic engine for generating image frames for a display inlcudes a graphic engine (110;210) comprising at least one geometric processing elaboration stages (111, 112), performing motion motion extraction. The engine also includes a rendering stage (113) generating full image frames (KF) at a first frame rate (F2) to be displayed at a second frame rate (F1), higher than the first frame rate (F2). The pipelined graphic engine further comprises a motion encoder (214) receiving motion vector information (MB) and suitable for coding the motion information e.g. with a variable length code, while generating a signal (R4) representative of interpolated frames (IF). The motion encoder (214) exploits the motion information (MB) as generated by the geometric elaboration stages (211, 212). A motion compensation stage (237) is provided fed with the signal representative of interpolated frames (IF) and full image frames for generating said the interpolated frames (IF). A preferred application is in graphic engines intended to operate in association with smart displays through a wireless connection, i.e. in mobile phones.

Abstract translation: 一种图形系统，包括用于生成用于显示器的图像帧的流水线三维图形引擎，包括包括至少一个几何处理制作阶段（111,112）的图形引擎（110; 210），执行运动运动提取。 引擎还包括以比第一帧速率（F2）更高的以第二帧速率（F1）显示的以第一帧速率（F2）产生全图像帧（KF）的渲染级（113）。 流水线图形引擎还包括运动编码器（214），其接收运动矢量信息（MB）并且适于对运动信息进行编码。 同时产生表示内插帧（IF）的信号（R4）。 运动编码器（214）利用由几何制作阶段（211,212）产生的运动信息（MB）。 提供运动补偿级（237），其馈送代表内插帧（IF）的信号和用于产生所述内插帧（IF）的全图像帧。 优选的应用是旨在通过无线连接（即在移动电话中）与智能显示器相关联地操作的图形引擎。

公开(公告)号：EP1081959A1

公开(公告)日：2001-03-07

申请号：EP99830545.2

申请日：1999-09-03

Applicant: STMicroelectronics S.r.l.

Inventor： Pau, Danilo ,  Pezzoni, Luca ,  Rovati, Fabrizio ,  Sirtori, Daniele

IPC: H04N7/26 ,  H04N7/36

CPC classification number: H04N19/105 ,  H04N19/112 ,  H04N19/137 ,  H04N19/85

Abstract: A method of recognizing a progressive or an interlaced content of video pictures during their processing in a coder, comprises the following operations on at least on one of the components (luminance or chrominance) of the video signal:

a) defining a macroblock belonging to a frame of the preceding picture having dimensions R*S pixels, a half of it (R/2)*S being placed on the Top field Tp and the other half on the Bottom field Bp ;
b) for the chosen component of the video signal, calculating a first pair of coefficients (COEFF_1, COEFF_2) equivalent to

the sum, extended to all the columns and to all the even row of said macroblock, of the absolute values of the differences among the values assumed by said component of the video signal in the pixels of the same column and of consecutive rows belonging to the Top semi-frame and Bottom semi-frame, respectively, and
the sum, extended to all the columns and to each fourth row of said macroblock, of the absolute values of the differences among the values assumed by said component of the video signal in the pixels of the same column and of consecutive rows of the same parity belonging to the Top semi-frame and Bottom semi-frame respectively;

c) verifying whether the first one of the coefficients of said pair is greater than or equal to a prefixed first real positive number of times (a) of the second coefficient, incrementing a first counter (CONT_1) at each positive verification;
d) incrementing a second counter (NUM_MACROBLOCK) at each macroblock so tested;
e) calculating for each row of each Top semi-frame a second pair of coefficients (COEFF_3, COEFF_4) equivalent to

for each row the sum, extended to all the columns of each semi-frame of the absolute values of the differences among the values assumed by said component of the video signal in pixels of the Bottom semi-frame of the preceding picture and of the Bottom semi-frame of the current picture, belonging to the row following the considered row and to the same column, and
the sum, extended to all the columns of each semi-frame of the absolute values of the differences among the values assumed by said component of the video signal in pixels of the same column and, respectively, of said row of the Top semi-frame of the preceding picture and the row following the considered row, belonging to the Bottom semi-frame of the current picture, respectively;

f) verifying whether the second coefficient of said second pair is grater than or equal to a second prefixed real positive number of times (β) the first coefficient of said second pair, incrementing a third counter (CONT_2) at each positive verification;
g) incrementing a fourth counter (NUM_RIGHE) at each row so tested;
verifying whether the content of the first counter (CONT_1) is greater than or equal to a third prefixed real positive number of times (γ) the content of second counter (NUM_MACROBLOCK) and whether, at the same time, the content of the third counter (CONT 2) is greater than or equal to a fourth prefixed real positive number of times (δ) the content of the fourth counter (NUM_RIGHE): if so, considerating the frame composed of said Top and Bottom semi-frame an interlaced one, if not a progressive one.

Abstract translation: 认识到他们的处理过程中的渐进或视频图像的隔行扫描内容在一个编码器的方法，包括在所述视频信号的分量（亮度或色度）的至少一个以下操作： - 定义属于一个宏块一个） 具有尺寸preceding-图象的帧R * S像素，它（R / 2）* S被放置在顶场Tp和另一半上底场bp的半; b）该视频信号的所选择的分量，计算中相当于之和的第一对系数（COEFF_1，COEFF_2），延伸到所有的列和所有的偶数行。所述宏块的，的差的绝对值的 由在同一列中的和分别属于顶半帧和底半帧，连续行的像素的视频信号的所述部件，并且总和假定的值，扩展到所有的列和每个第四行 说宏块由在同一列中的像素与分别属于顶半帧和底半帧中的相同奇偶性的连续行的视频信号的所述部件假设值之间的差的绝对值的值，的 ; c）是否验证所述系数的计算对大于或等于所述第二系数的时间（a）一种前缀第一实正数，递增在每个正验证一个第一计数器（CONT_1）中的第一个; D）在递增进行测试，从而每个宏块的第二计数器（NUM_MACROBLOCK）; e）计算为每个顶半帧的每行相当于第二对系数（COEFF_3，COEFF_4）每行的总和，扩展到的值之间的差的绝对值的每个半帧的所有列 由视频信号的所述部件在preceding-图片的底部半帧的像素与当前画面的底部半帧的假设，属于行继考虑行和同一列中，并且该和， 分别延伸到由所述视频信号的所述部件在同一列中的像素假设的值和，之间的差的绝对值的每个半帧的所有列，则preceding-的顶半帧的所述行的 画面和行继考虑行，属于当前画面，分别的底部半帧; F）验证是否所述第二对中的第二系数是磨碎器小于或等于的倍的第二前缀实正数（测试版）所述第二对的所述第一系数，递增在每个正验证一个第三计数器（CONT_2）; 克）在递增以便测试各行的第四计数器（NUM_RIGHE）; 验证是否（CONT_1）第一计数器的含量为大于或等于的倍的第三前缀正实数（伽马）第二计数器（NUM_MACROBLOCK）和无论的内容，同时，所述第三计数器的内容 （CONT 2）大于或等于次四分之一前缀正实数（增量）的第四计数器的内容（NUM_RIGHE）：如果是这样，considerating所述顶部和底部半帧构成的帧隔行之一， 如果没有一个渐进。

公开(公告)号：EP1443461B1

公开(公告)日：2006-11-02

申请号：EP03002205.7

申请日：2003-01-31

Applicant: STMicroelectronics S.r.l.

Inventor： Barone, Massimiliano ,  Vitali, Andrea ,  Pau, Danilo Pietro ,  Sirtori, Daniele ,  Lavigna, Daniele ,  Gardella, Pierluigi

IPC: G06T9/00

CPC classification number: G06T9/005

公开(公告)号：EP1443461A1

公开(公告)日：2004-08-04

申请号：EP03002205.7

申请日：2003-01-31

Applicant: STMicroelectronics S.r.l.

Inventor： Barone, Massimiliano ,  Vitali, Andrea ,  Pau, Danilo Pietro ,  Sirtori, Daniele ,  Lavigna, Daniele ,  Gardella, Pierluigi

IPC: G06T9/00

CPC classification number: G06T9/005

Abstract: A method for texture compressing images having a plurality of color components (R, G, B) includes the step of defining color representatives for use in encoding by defining groups of colors for each said color component (R,G,B), and selecting for each said group a representative color for the group, the median color being chosen as the representative color of the group. Each said group is preferably composed of 3 to 15 colors and the method includes the step of computing, for each group, an error between each member of the group and said representative color of the group. Typically, the error is computed as the sum of the absolute differences (SAD) between each member of the group and said representative color of the group. In order to select each said group and then extract therefrom said representative color, a criterium is used selected from the group consisting of:

selecting the group that minimizes said error by assuming each group comprised of the lower colors sorted in ascending order, wherein the same applies for the groups comprised of the higher colors,
accruing the error as computed separately for two groups in all possible combinations and finding the minimum of the composite error.

Abstract translation: 用于纹理压缩具有多个颜色分量（R，G，B）的图像的方法包括通过为每个所述颜色分量（R，G，B）定义颜色组来定义用于编码的颜色代表的步骤，以及选择 对于每个所述组，该组的代表颜色，中间颜色被选择为该组的代表颜色。 每个所述组优选地由3至15种颜色组成，并且该方法包括以下步骤：针对每个组计算组的每个成员与组的所述代表颜色之间的误差。 通常，误差被计算为组的每个成员与组的所述代表颜色之间的绝对差（SAD）之和。 为了选择每个所述组，然后从其中提取所述代表性颜色，使用选自以下的标准：选择通过假设由按升序排列的较低颜色组成的每个组，使所述误差最小化的组，其中相同 适用于由较高颜色组成的组，在所有可能的组合中分别计算出两组的误差，并找出复合误差的最小值。

公开(公告)号：EP0878776B1

公开(公告)日：2003-08-27

申请号：EP97830217.2

申请日：1997-05-12

Applicant: STMicroelectronics S.r.l.

Inventor： Mancuso, Massimo ,  D'Alto, Viviana ,  Sirtori, Daniele ,  Poluzzi, Rinaldo

IPC: G06T1/00 ,  G06T5/20

CPC classification number: G06T5/20

公开(公告)号：EP1225704A1

公开(公告)日：2002-07-24

申请号：EP01830014.5

申请日：2001-01-12

Applicant: STMicroelectronics S.r.l.

Inventor： Sirtori, Daniele ,  Pau, Danillo

IPC: H03M7/30 ,  H04N7/26

CPC classification number: H03M7/30 ,  H04N19/00

Abstract: A process for converting signals in the form of digital data, such as various types of video/audio/data signals for example, between an original format, in which each data item includes a certain number of digits, and a compressed format, in which each data item includes a smaller number of digits. The process includes the operation of associating the data with a configuration including:

a first field identifying the number of sub-blocks into which the said certain number of digits are subdivided,
a second field that identifies, within the said sub-blocks, respective sections (A 1 , A 2 , A 3 and A 4 ; B 1 , B 2 , B 3 and B 4 ; C 1 , C 2 , C 3 and C 4 ), each one including a given number of digits, and
a third field that identifies, for each these sections, one of a plurality of applicable modes (average, compression, transmission "as is", etc.) that can be adopted for converting the digits in the section between the original format and the compressed format.
The process can be used to advantage at both the compression level (40) and the decompression level (80) for optimising dimensions, technology and methods of implementation, access types and speeds, etc. of memory (60) functions on computer systems, in particular for the real-time processing of audio and video signals.

Abstract translation: 一种用于在原始格式中的数字数据，：诸如各种类型的视频/音频/数据信号对于实施例的形式的信号转换之间的过程，其中，每个数据项包括的位数一定数目，和压缩格式，其中 每个数据项包括的位数较小的数字。 该方法包括操作所述数据与配置，包括相关联的：第一字段，其标识的子块到其中的数字的所述一定数目的细分数目，第二字段做标识，所述的子块，respectivement区段内 （A1，A2，A3和A4; B1，B2，B3和B4; C1，C2，C3和C4），每一个包括数字的给定数量，和第三字段做标识，对于每一个合成部分，一个一 适用模式多个（平均，压缩，传输“原样”等）确实卡恩采用原始格式和压缩格式之间的转换部的数字。 该方法可以用于在这两个压缩级（40）和用于优化的尺寸，技术和实施的方法中，访问类型和速度，存储器等。（60）的功能在计算机系统的解压缩级（80）有利地，在 特别是音频和视频信号的实时处理。

公开(公告)号：EP1496704B1

公开(公告)日：2009-01-21

申请号：EP03015269.8

申请日：2003-07-07

Applicant: STMicroelectronics S.r.l.

Inventor： Sirtori, Daniele ,  Pau, Danilo Pietro ,  Gardella, Pierluigi ,  Barone, Massimiliano ,  Falchetto, Mirko

IPC: H04N7/26

CPC classification number: G06T15/005 ,  G06T9/001 ,  H04N19/29 ,  H04N19/31 ,  H04N19/42 ,  H04N19/517 ,  H04N19/537 ,  H04N19/577 ,  H04N19/587