公开(公告)号：US08269781B2

公开(公告)日：2012-09-18

申请号：US12341725

申请日：2008-12-22

Applicant: Danilo Pau ,  Antonio Maria Borneo ,  Daniele Lavigna

Inventor： Danilo Pau ,  Antonio Maria Borneo ,  Daniele Lavigna

IPC: G06F15/16 ,  H04B1/66

CPC classification number: G06T9/001 ,  H04N19/27 ,  H04N19/42 ,  H04N19/436 ,  H04N19/44

Abstract: A system for decoding a stream of compressed digital video images comprises a graphics accelerator for reading the stream of compressed digital video images, creating, starting from said stream of compressed digital video images, three-dimensional scenes to be rendered, and converting the three-dimensional scenes to be rendered into decoded video images. The graphics accelerator is preferentially configured as pipeline selectively switchable between operation in a graphics context and operation for decoding the stream of video images. The graphics accelerator is controllable during operation for decoding the stream of compressed digital video images via a set of application programming interfaces comprising, in addition to new APIs, also standard APIs for operation of the graphics accelerator in a graphics context.

Abstract translation: 用于解码压缩数字视频图像流的系统包括用于读取压缩数字视频图像流的图形加速器，从所述压缩数字视频图像流开始创建要呈现的三维场景， 要呈现为解码视频图像的三维场景。 图形加速器被优选地配置为在图形上下文的操作和用于解码视频图像流的操作之间有选择地切换的流水线。 图形加速器在操作期间是可控制的，用于经由一组应用程序编程接口解码压缩数字视频图像流，除了新API之外，还包括用于图形上下文中图形加速器的操作的标准API。

公开(公告)号：US20110169822A1

公开(公告)日：2011-07-14

申请号：US13013324

申请日：2011-01-25

Applicant: Pierluigi Gardella ,  Massimiliano Barone ,  Edoardo Gallizio ,  Danilo Pau

Inventor： Pierluigi Gardella ,  Massimiliano Barone ,  Edoardo Gallizio ,  Danilo Pau

IPC: G06T15/00

CPC classification number: G06T11/40

Abstract: A system renders a primitive of an image to be displayed, for instance in a mobile 3D graphic pipeline, the primitive including a set of pixels. The system locates the pixels in the area of the primitive, generates, for each pixel located in the area, a set of associated sub-pixels, borrows a set of sub-pixels from neighboring pixels, subjects the set of associated sub-pixels and the borrowed set of pixels to adaptive filtering to create an adaptively filtered set of sub-pixels, and further filters the adaptively filtered set of sub-pixels to compute a final pixel for display. Preferably, the set of associated sub-pixels fulfils at least one of the following: the set includes two associated sub-pixels and the set includes associated sub-pixels placed on pixel edges.

Abstract translation: 系统呈现要显示的图像的原语，例如在移动3D图形流水线中，该图元包括一组像素。 系统定位基元区域中的像素，为位于该区域中的每个像素产生一组相关联的子像素，从相邻像素借用一组子像素，对该组相关联的子像素进行对象，以及 将借用的像素集合进行自适应滤波以创建自适应滤波的子像素组，并且进一步对自适应滤波的子像素组进行滤波以计算用于显示的最终像素。 优选地，该组相关联的子像素满足以下中的至少一个：该集合包括两个相关联的子像素，并且该集合包括放置在像素边缘上的相关联的子像素。

公开(公告)号：US07623270B2

公开(公告)日：2009-11-24

申请号：US11145021

申请日：2005-06-03

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

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

IPC: H04N1/52 ,  H04N1/405 ,  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 of the image there is applied an algorithm involving simple but displacement operation, namely shifts to the left and shifts to the right. The pixel values of a low-resolution image are output from the applied algorithm.

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，应用涉及简单但位移操作的算法，即向左移动并向右移动。 从应用的算法输出低分辨率图像的像素值。

公开(公告)号：US07233623B1

公开(公告)日：2007-06-19

申请号：US09390554

申请日：1999-09-03

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

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

IPC: H04N7/12 ,  G06K9/36

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/2i*N/2i, where i is an integer number, with respect to a maximum pre-defined size of N*N pixels of blocks of division of the picture, referred to as domain blocks, shiftable by intervals of N/2i pixels. The method also includes the step of calculating the DCT on 2i range blocks of a subdivision of a domain block of N*N pixels of the 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：定义称为范围块的第一细分块，具有分数和可缩放尺寸N / 2 * N / 对于被称为域块的N * N个像素的划分的N×N个像素的最大预定大小，其中i是整数，其中i是整数，可以以N的间隔移位 / 2 像素。 该方法还包括平行地计算图像的N * N个像素的域块的细分的2π/ 2范围块上的DCT的步骤。

公开(公告)号：US06934329B1

公开(公告)日：2005-08-23

申请号：US09712509

申请日：2000-11-14

Applicant: Danilo Pau ,  Luca Bortot ,  Maria Luisa Sacchi

Inventor： Danilo Pau ,  Luca Bortot ,  Maria Luisa Sacchi

IPC: G06T9/00 ,  H03M7/30 ,  H03M7/40 ,  H04N7/26 ,  H04N7/18

CPC classification number: H04N19/40

Abstract: A method of producing an output bitstream of coded digital video data with a bit-rate different from the bit-rate of an input bitstream includes dividing the input bitstream into a sequence of coded data and a sequence of control bits. The sequence of control bits is modified as a function of the desired bit-rate of the output bitstream that is different from the bit-rate of the input bitstream. An output sequence of control bits is produced. The method further includes decoding the sequence of coded data producing an intermediate sequence of data, and quantizing with a pre-established step and coding the intermediate sequence of data producing an output sequence of coded data. The output sequences producing the output bitstream are merged with the desired bit-rate.

Abstract translation: 以与输入比特流的比特率不同的比特率产生编码数字视频数据的输出比特流的方法包括将输入比特流分成编码数据序列和控制比特序列。 控制位的序列被修改为与输入比特流的比特率不同的输出比特流的期望比特率的函数。 产生控制位的输出序列。 该方法还包括对产生中间数据序列的编码数据序列进行解码，并用预先建立的步骤进行量化，并对产生编码数据的输出序列的中间数据序列进行编码。 产生输出比特流的输出序列与期望的比特率合并。

公开(公告)号：US20050117805A1

公开(公告)日：2005-06-02

申请号：US10938426

申请日：2004-09-10

Applicant: Bruno Poutet ,  Massimiliano Barone ,  Pier Gardella ,  Danilo Pau

Inventor： Bruno Poutet ,  Massimiliano Barone ,  Pier Gardella ,  Danilo Pau

IPC: G06T9/00 ,  H04N7/26 ,  G06K9/46

CPC classification number: H04N19/90

Abstract: A digital video image is compressed by determining for a group of adjacent pixels the global error values that result from the available combinations of truncation and integration of data strings associated with the group of pixels. A combination of truncation and integration that produces a minimum global error value is identified and used to control compression of the individual strings of data associated with the group of pixels.

Abstract translation: 通过从一组相邻像素确定由与像素组相关联的数据串的截断和积分的可用组合产生的全局误差值来压缩数字视频图像。 识别产生最小全局误差值的截断和积分的组合，并用于控制与该组像素相关联的各个数据串的压缩。

公开(公告)号：US06549668B1

公开(公告)日：2003-04-15

申请号：US09416646

申请日：1999-10-12

Applicant: Luca Pezzoni ,  Emiliano Piccinelli ,  Danilo Pau

Inventor： Luca Pezzoni ,  Emiliano Piccinelli ,  Danilo Pau

IPC: G06K936

CPC classification number: H04N19/186 ,  H04N19/61

Abstract: A method for compressing encoding data of a sequence of pictures is based on a motion estimation among the successive images to remove the temporal redundancy from the data. The method recognizes a 3:2 pulldown conversion of a series of photograms of a filmed sequence in a sequence of TV frames. The TV frames have a number greater than the number of the photograms by duplicating certain pictures in a certain order. The redundancy due to such picture duplications is eliminated.

Abstract translation: 用于压缩图像序列的编码数据的方法基于连续图像之间的运动估计，以从数据中去除时间冗余。 该方法识别电视帧序列中拍摄序列的一系列照片的3：2下拉转换。 通过以特定顺序复制某些图像，TV帧的数量大于照片的数量。 由于这种图像重复而导致的冗余被消除。

公开(公告)号：US08411094B2

公开(公告)日：2013-04-02

申请号：US12474111

申请日：2009-05-28

Applicant: Mirko Falchetto ,  Massimiliano Barone ,  Danilo Pau

Inventor： Mirko Falchetto ,  Massimiliano Barone ,  Danilo Pau

IPC: G06T1/00 ,  G06T15/40

CPC classification number: G06F15/16 ,  G06T1/20

Abstract: The disclosure relates to a graphics module for rendering a bidimensional scene on a display screen comprising a graphics pipeline of the sort-middle type, said graphics pipeline comprising: a first processing module configured to clip a span-type input primitive received from a rasterizer module into sub-span type primitives to be associated to respective macro-blocks corresponding to portions of the screen, and to store said sub-span type primitives in a scene buffer; a second processing module configured to reconstruct the span-type input primitive starting from said sub-span type primitives, the second processing module being further intended to implement a culling operation of sub-span type primitives of the occluded type.

Abstract translation: 本公开涉及一种用于在包括分类中间类型的图形流水线的显示屏幕上呈现二维场景的图形模块，所述图形流水线包括：第一处理模块，被配置为剪辑从光栅化器模块接收的跨度类型输入原语 转换为与所述屏幕的部分相对应的各个宏块相关联的子跨度类型原语，并将所述子跨度类型原语存储在场景缓冲器中; 第二处理模块，被配置为从所述子跨度类型原语开始重建所述跨度类型输入原语，所述第二处理模块进一步旨在实现所述闭塞类型的子跨度类型原语的剔除操作。

公开(公告)号：US07295764B2

公开(公告)日：2007-11-13

申请号：US10177729

申请日：2002-06-20

Applicant: Giorgio Betti ,  Angelo Dati ,  Viviana D'Alto ,  Danilo Pau ,  Filippo Santinello

Inventor： Giorgio Betti ,  Angelo Dati ,  Viviana D'Alto ,  Danilo Pau ,  Filippo Santinello

IPC: H04N7/26

CPC classification number: H04N19/00266 ,  H04N19/157 ,  H04N19/172 ,  H04N19/61

Abstract: A method of storing a data file, particularly in the MPEG format and including a flow of different frames, comprises a protection system for the data file based on a parameter stored in the data file. Advantageously, the storage method comprises selectively protecting the frames by storing parameters that are associated with corresponding different frames whose values are selected to provide a playing quality level requested by an end user. Also, a method is provided for decoding a data file, particularly of the MPEG type and including a flow of different frames, wherein the data file is stored per above.

Abstract translation: 特别是以MPEG格式存储并包括不同帧流的数据文件的方法包括基于存储在数据文件中的参数的数据文件的保护系统。 有利地，存储方法包括通过存储与其值被选择的相应不同帧相关联的参数来选择性地保护帧，以提供终端用户请求的播放质量等级。 此外，提供了一种用于对数据文件进行解码的方法，特别是MPEG类型的数据文件，并且包括不同帧的流程，其中数据文件存储在上面。

公开(公告)号：US07012618B2

公开(公告)日：2006-03-14

申请号：US10610341

申请日：2003-06-30

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

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

IPC: G09G5/02

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 color space to the YUV color space. The signal converted into the YUV color 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 color space to the RGB color space, thus being susceptible to be displayed on the display.

Abstract translation: 将要显示在诸如液晶显示器（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。