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    A METHOD AND AN APPARATUS FOR THE EXTRACTION OF DESCRIPTORS FROM VIDEO CONTENT, PREFERABLY FOR SEARCH AND RETRIEVAL PURPOSE
    1.
    发明申请
    A METHOD AND AN APPARATUS FOR THE EXTRACTION OF DESCRIPTORS FROM VIDEO CONTENT, PREFERABLY FOR SEARCH AND RETRIEVAL PURPOSE 审中-公开
    一种用于从视频内容中提取描述符的方法和装置，优选用于搜索和检索目的

    公开(公告)号：WO2014009490A1

    公开(公告)日：2014-01-16

    申请号：PCT/EP2013/064729

    申请日：2013-07-11

    Applicant: RAI RADIOTELEVISIONE ITALIANA S.P.A. ,  STMICROELECTRONICS S.R.L.

    Inventor： PAU, Danilo ,  MESSINA, Alberto

    IPC: G06K9/00 ,  G06K9/46

    CPC classification number: G06K9/00744 ,  G06K9/4671

    Abstract: The present invention provides for a method for extraction of descriptors from video content, comprising the following steps: a Key Frame Extracting step, applying a local descriptors-based approach to select pictures of the incoming video as key frames that are representative of a temporal region of the video which is visually homogeneous; a Content Analysis step, analysing the content of said key frames and classifying image patches of said key frames as interesting or not for said extraction of descriptors; a Descriptors Extracting step, extracting compact descriptors from said selected key frames, and defining a set of surrounding images also on the basis of input received from said Content Analysis step; a Temporal Coding step, multiplexing information about the time points at which said key frames have been extracted in said Key Frame Extracting step with said compact descriptors extracted in said Descriptors Extracting step, obtaining said descriptors.

    Abstract translation: 本发明提供一种用于从视频内容中提取描述符的方法，包括以下步骤：关键帧提取步骤，应用基于局部描述符的方法来选择输入视频的图像作为表示时间区域的关键帧 视频均匀的视频; 内容分析步骤，对所述关键帧的内容进行分析，并且对所述关键帧的图像片段进行分类，对于描述符的提取是有趣的; 描述符提取步骤，从所述选择的关键帧中提取紧凑描述符，并且还基于从所述内容分析步骤接收的输入来定义一组周围图像; 时间编码步骤，在所述关键帧提取步骤中，利用在所述描述符提取步骤中提取的所述紧凑描述符，复用关于所述关键帧已被提取的时间点的信息，获得所述描述符。

    A METHOD AND SYSTEM FOR VIDEO DECODING BY MEANS OF A GRAPHIC PIPELINE, COMPUTER PROGRAM PRODUCT THEREFOR
    2.
    发明申请
    A METHOD AND SYSTEM FOR VIDEO DECODING BY MEANS OF A GRAPHIC PIPELINE, COMPUTER PROGRAM PRODUCT THEREFOR 审中-公开
    用于图形管道的视频解码的方法和系统，其计算机程序产品

    公开(公告)号：WO2007148355A1

    公开(公告)日：2007-12-27

    申请号：PCT/IT2006/000478

    申请日：2006-06-22

    Applicant: STMICROELECTRONICS S.R.L. ,  PAU, Danilo ,  BORNEO, Antonio Maria ,  LAVIGNA, Daniele

    Inventor： PAU, Danilo ,  BORNEO, Antonio Maria ,  LAVIGNA, Daniele

    IPC: H04N7/26 ,  G06T15/00

    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 (IS) comprises a graphics accelerator (152 to 158) for reading (152) the stream of compressed digital video images, creating (154, 156), starting from said stream of compressed digital video images, three-dimensional scenes to be rendered, and converting (158, 160) the three-dimensional scenes to be rendered into decoded video images (OS). The graphics accelerator (152 to 158) is preferentially configured as pipeline (102) selectively switchable between operation in a graphics context and operation for decoding the stream of video images (IS) . The graphics accelerator (152 to 158) is controllable during operation for decoding the stream of compressed digital video images (IS) via a set of Application Programmer's Interfaces (APIs) comprising, in addition to new APIs, also standard APIs for operation of the graphics, accelerator (152 to 158) in a graphics context.

    Abstract translation: 用于对压缩数字视频图像（IS）流进行解码的系统包括用于读取（152）压缩数字视频图像流的图形加速器（152至158），从所述压缩数字视频图像流开始创建（154,156） 视频图像，要渲染的三维场景，以及将待渲染的三维场景转换（158,160）为解码视频图像（OS）。 图形加速器（152至158）优选地配置为在图形上下文中的操作和用于解码视频图像（IS）流的操作之间可选择地切换的流水线（102）。 图形加速器（152至158）在操作期间是可控的，用于经由一组应用程序接口（API）解码压缩数字视频图像（IS）流，除了新的API之外，还包括用于操作图形的标准API ，加速器（152至158）。

    IMAGE RENDERING WITH ADAPTIVE FILTERING FOR ANTI-ALIASING
    3.
    发明申请
    IMAGE RENDERING WITH ADAPTIVE FILTERING FOR ANTI-ALIASING 审中-公开
    具有自适应滤波的图像渲染用于抗锯齿

    公开(公告)号：WO2005093664A1

    公开(公告)日：2005-10-06

    申请号：PCT/IB2005/000117

    申请日：2005-01-14

    Applicant: STMICROELECTRONICS S.R.L. ,  GARDELLA, Pierluigi ,  BARONE, Massimiliano ,  GALLIZIO, Edoardo ,  PAU, Danilo

    Inventor： GARDELLA, Pierluigi ,  BARONE, Massimiliano ,  GALLIZIO, Edoardo ,  PAU, Danilo

    IPC: G06T11/40

    CPC classification number: G06T11/40

    Abstract: A system for rendering 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 is configured for: - locating the pixels that fall within the area of the primitive, - generating, for each pixel located in the area, a set of associated sub-pixels, - borrowing a borrowed set of sub-pixels from neighboring pixels, - subjecting the set of associated sub-pixels and the borrowed set of pixels (A, B, C, D) to adaptive filtering to create an' adaptively filtered set of sub­pixels (AA, BB, CC, DD), and - subjecting at least the adaptively filtered set of sub-pixels (AA, BB, CC, DD) to further filtering to compute a final pixel adapted for display. Preferably, the set of associated sub-pixels fulfils at least one of the following requirements: the set includes two associated sub-pixels and - the set includes associated sub-pixels placed on triangle edges.

    Abstract translation: 用于渲染要显示的图像的原语的系统，例如在移动3D图形流水线中，所述图元包括一组像素。 该系统被配置为： - 定位落在基元区域内的像素， - 为位于该区域中的每个像素产生一组相关联的子像素， - 从相邻像素借用借用的子像素组 - 对所述一组相关联的子像素和所借用的像素组（A，B，C，D）进行自适应滤波以创建“自适应滤波的子像素组（AA，BB，CC，DD）”，以及 - 至少自适应滤波的子像素组（AA，BB，CC，DD）进一步滤波以计算适于显示的最终像素。 优选地，该组相关联的子像素满足以下要求中的至少一个：该集合包括两个相关联的子像素，并且 - 该集合包括放置在三角形边缘上的相关联的子像素。

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