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    Method of processing a digital image by means of ordered dithering technique
    2.
    发明公开
    Method of processing a digital image by means of ordered dithering technique 有权
    Verfahren zur digitalen Bildverarbeitung mittels geordnetem Dithering

    公开(公告)号：EP1566957A1

    公开(公告)日：2005-08-24

    申请号：EP04425101.5

    申请日：2004-02-18

    Applicant: STMicroelectronics S.r.l. ,  STMicroelectronics Limited

    Inventor： Gardella, Pier Luigi ,  Barone, Massimiliano ,  Sweet, Gary ,  Pau, Danilo ,  Hill, Stephen ,  Goda, Simon

    IPC: H04N1/41 ,  H04N1/64 ,  G06T3/40 ,  H04N7/26 ,  G09G5/02

    CPC classification number: H04N19/00 ,  G09G3/2051 ,  G09G5/02 ,  H04N1/40087 ,  H04N19/42 ,  H04N19/90

    Abstract: A dither matrix is applied to a high-resolution image to compare the value of each of the pixels that compose it with a threshold value of the matrix and to obtain an output value of the matrix (Dither matrix value) from each comparison. To each pixel value (in_value_r) of the image there is applied the algorithm represented by the schematic layout of Figure 7 to obtain the pixel values (Out_r) of a low-resolution image. C 1 -C 5 and n 1 -n 10 are parameters that may be selected by means of predetermined criteria based on comparisons of the low-resolution image, obtained by means of the operations described above, with an equivalent low-resolution image obtained by means of a sample method.

    Abstract translation: 将抖动矩阵应用于高分辨率图像，以将构成它的每个像素的值与矩阵的阈值进行比较，并从每个比较中获得矩阵（抖动矩阵值）的输出值。 对于图像的每个像素值（in_value_r），应用由图7的原理图布局表示的算法，以获得低分辨率图像的像素值（Out_r）。 C1-C5和n1-n10是可以通过基于通过上述操作获得的低分辨率图像与通过样本获得的等效低分辨率图像的比较的预定标准来选择的参数 方法。

    Processor architecture, related system and method of operation
    3.
    发明公开
    Processor architecture, related system and method of operation 审中-公开
    Prozessorarchitektur und系统和Betriebsverfahren

    公开(公告)号：EP1324191A1

    公开(公告)日：2003-07-02

    申请号：EP01830814.8

    申请日：2001-12-27

    Applicant: STMicroelectronics S.r.l.

    Inventor： Cremonesi, Alessandro ,  Rovati, Fabrizio ,  Pau, Danilo

    IPC: G06F9/318

    CPC classification number: G06F9/30196 ,  G06F9/30181 ,  G06F9/30189

    Abstract: A processing architecture enables execution of one first set of instructions (OsTask1.1, OsTask1.2, ...) and one second set of instructions (MmTask2.1, MmTask2.2, MmTask2.3, ...) compiled for being executed by two different CPUs, the first set of instructions (OsTask1.1, OsTask1.2, ...) not being executable by the second CPU, and the second set of instructions (MmTask2.1, MmTask2.2, MmTask2.3, ...) not being executable by the first CPU. The architecture comprises a single CPU (CPU3) configured for executing both the instructions of the first set (OsTask1.1, OsTask1.2, ...) and the instructions of the second set (MmTask2.1, MmTask2.2, MmTask2.3, ...). The single CPU in question (CPU3) being selectively switchable between a first operating mode, in which the single CPU (CPU3) executes the first set instructions (OsTask1.1, OsTask1.2, ...), and a second operating mode, in which the single CPU (CPU3) executes the second set of instructions (MmTask2.1, MmTask2.2, MmTask2.3, ...). The single processor (CPU3) is configured for recognizing a switching instruction between the first operating mode and the second operating mode and for switching between the first operating mode and the second operating mode according to the switching instruction. The solution can be generalized to the use of a number of switching instructions between more than two execution modes for different CPUs.

    Abstract translation: 一种处理架构使得能够执行一组第一组指令（OsTask1.1，OsTask1.2，...）和一组第二组指令（MmTask2.1，MmTask2.2，MmTask2.3，...） 由两个不同的CPU执行，第一组指令（OsTask1.1，OsTask1.2，...）不能由第二个CPU执行，第二组指令（MmTask2.1，MmTask2.2，MmTask2.3 ，...）不能由第一个CPU执行。 该架构包括被配置为执行第一组（OsTask1.1，OsTask1.2，...）的指令和第二组的指令（MmTask2.1，MmTask2.2，MmTask2）的单个CPU（CPU3）。 3，...）。 所讨论的单个CPU（CPU3）可以在单CPU（CPU3）执行第一组指令（OsTask1.1，OsTask1.2，...）的第一操作模式和第二操作模式之间切换， 其中单个CPU（CPU3）执行第二组指令（MmTask2.1，MmTask2.2，MmTask2.3，...）。 单处理器（CPU3）被配置为根据切换指令识别第一操作模式和第二操作模式之间的切换指令，并且用于在第一操作模式和第二操作模式之间切换。 该解决方案可以推广到在不同CPU之间的两个以上执行模式之间使用多个切换指令。

    Detection of a 3:2 pulldown in a motion estimation phase and optimized video compression encoder
    6.
    发明公开
    Detection of a 3:2 pulldown in a motion estimation phase and optimized video compression encoder 审中-公开
    检测运动估计阶段的3：2下拉和优化的视频压缩编码器

    公开(公告)号：EP0994626A1

    公开(公告)日：2000-04-19

    申请号：EP98830600.7

    申请日：1998-10-12

    Applicant: STMicroelectronics S.r.l.

    Inventor： Pezzoni, Luca ,  Piccineli, Emiliano ,  Pau, Danilo

    IPC: H04N7/26

    CPC classification number: H04N19/186 ,  H04N19/61

    Abstract: A method of compressing encoding data of a sequence of pictures based on a motion estimation among the successive images in order to remove the temporal redundancy from the data, characterized in that it comprises recognizing a 3:2 pulldown conversion of a series of photograms of a filmed sequence in a sequence of TV frames of number greater than the number of said photograms by duplication of certain pictures in a certain order and eliminating the redundancy due to such picture duplications.

    Abstract translation: 一种基于连续图像之间的运动估计对图像序列的编码数据进行压缩以便从数据中去除时间冗余的方法，其特征在于，该方法包括识别一系列图像的一系列照片的3：2下拉变换 通过以特定顺序复制某些图像并消除由于这种图像复制而造成的冗余，在数量大于所述图像数量的TV帧序列中拍摄序列。

    Fractal coding of data in the DCT domain
    7.
    发明公开
    Fractal coding of data in the DCT domain 审中-公开
    弗拉基米尔·冯·达滕在德米兰

    公开(公告)号：EP0986026A1

    公开(公告)日：2000-03-15

    申请号：EP98830522.3

    申请日：1998-09-07

    Applicant: STMicroelectronics S.r.l.

    Inventor： Pau, Danilo ,  Sannino, Roberto ,  Capasso, Andrea ,  Fragneto, Pasqualina

    IPC: G06T9/00

    CPC classification number: G06F17/147 ,  H04N19/119 ,  H04N19/122 ,  H04N19/14 ,  H04N19/176 ,  H04N19/436 ,  H04N19/99

    Abstract: A method of calculating the discrete cosine transform (DCT) of blocks of pixels of a picture includes the steps of defining first subdivision blocks called range blocks, having a fractional and scaleable size N/2 i *N/2 i , where i is an integer number, in respect to a maximum pre-defined size of N*N pixels of blocks of division of said picture, referred to as domain blocks, shiftable by intervals of N / 2 i pixels, and of calculating the DCT on 2 i range blocks of subdivision of a domain block of N*N pixels of said picture, in parallel.

    Abstract translation: 计算图像像素块的离散余弦变换（DCT）的方法包括以下步骤：定义具有分数和可缩放大小N / 2 * N / 2的称为范围块的第一细分块， 其中i是整数，关于所述图像的划分块的N * N个像素的最大预定大小，称为域块，可以以N / 2像素的间隔移位，并且计算 并行地对所述图像的N * N个像素的域块进行细分的二进制DCT上的DCT。

    Method and device for processing video signals for presentation on a display and corresponding computer program product
    10.
    发明公开
    Method and device for processing video signals for presentation on a display and corresponding computer program product 有权
    TreiberfüreineFlüssigkristallanzeigeeines个人助理助理Mobiltelefons

    公开(公告)号：EP1381242A2

    公开(公告)日：2004-01-14

    申请号：EP03014057.8

    申请日：2003-06-23

    Applicant: STMicroelectronics S.r.l.

    Inventor： Pau, Danilo ,  Alfonso, Daniele ,  Piccinelli, Emiliano ,  Signorelli, Tiziana

    IPC: H04N9/64 ,  G09G5/36

    CPC classification number: G09G3/3611 ,  G09G3/3688 ,  G09G5/363 ,  G09G2340/02 ,  G09G2340/06 ,  H04N9/64

    Abstract: An RGB digital video signal destined to be displayed on a display such as a liquid crystal display (LCD) is converted from the RGB colour space to the YUV colour space. The signal converted into the YUV colour space is subjected to at least a processing operation selected among a sub-sampling operation (24) and a data compression operation (26). The signal is then stored in a memory and the signal read from said memory (12) is then subjected to at least a return operation (28, 30) complementary to the aforesaid processing operation (24, 26). The signal subjected to the aforesaid return operation is lastly reconverted from the YUV colour space to the RGB colour space, thus being susceptible to be displayed on the display.

    Abstract translation: 将要显示在液晶显示器（LCD）的显示器上的RGB数字视频信号从RGB色彩空间转换为YUV色彩空间。 转换成YUV色彩空间的信号至少经受从子采样操作（24）和数据压缩操作（26）中选择的处理操作。 然后将信号存储在存储器中，然后从所述存储器（12）读取的信号至少经受与上述处理操作（24,26）互补的至少一个返回操作（28,30）。 经过上述返回操作的信号最后从YUV颜色空间重新转换为RGB颜色空间，因此易于显示在显示器上。

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