公开(公告)号：WO2004109662A3

公开(公告)日：2004-12-16

申请号：PCT/US2004/010741

申请日：2004-04-08

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  YU, Hong, Heather ,  BHATTACHARYA, Prabir

Inventor： YU, Hong, Heather ,  BHATTACHARYA, Prabir

IPC: H04N7/167

Abstract: A multilayer digital content protection system, particularly for a digital cinema application is provided. Detection of unauthorized activity at the time it is occurring is provided using a first protection layer. Two layers of imperceptible watermarks, one camcorder viewable and one camcorder invisible are inserted into unauthorized copies of the digital content with second and third protection layers. Strong near infrared is also used to degrade the quality of any attempted unauthorized recording of digital content using a camcorder.

公开(公告)号：WO2006010107A1

公开(公告)日：2006-01-26

申请号：PCT/US2005/024503

申请日：2005-07-08

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD ,  BUSHMITCH, Dennis ,  YU, Hong, Heather ,  KHANDELWAL, Rajesh

Inventor： BUSHMITCH, Dennis ,  YU, Hong, Heather ,  KHANDELWAL, Rajesh

IPC: G06F15/16

CPC classification number: H04N21/435 ,  H04N21/235 ,  H04N21/2353 ,  H04N21/8405

Abstract: A metadata service system (14) includes a datastore of metadata objects. A search and search and browsing module is adapted to receive a search request from a control point (10) and return at least part of one or more metadata objects to the control point based on a content reference identifier specified by the search request. The metadata service system (14) is adapted to inform the control point of its existence and capabilities by participating as a service in a service discovery protocol. In other aspects, update (20), create (16) , and delete (22) modules provide complimentary functions.

Abstract translation: 元数据服务系统（14）包括元数据对象的数据存储。 搜索和搜索和浏览模块适于从控制点（10）接收搜索请求，并且基于由搜索请求指定的内容参考标识符将至少部分一个或多个元数据对象返回到控制点。 元数据服务系统（14）适于通过在服务发现协议中作为服务来参与控制点的存在和能力。 在其他方面，更新（20），创建（16）和删除（22）模块提供补充功能。

公开(公告)号：WO2003079277A1

公开(公告)日：2003-09-25

申请号：PCT/US2003/006782

申请日：2003-03-07

Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. ,  YU, Hong, Heather

Inventor： YU, Hong, Heather

IPC: G06K9/00

CPC classification number: H04N1/00 ,  G06T1/0028 ,  G06T2201/0051 ,  G06T2201/0083 ,  H04N1/32203 ,  H04N1/32256 ,  H04N2201/3225 ,  H04N2201/3236 ,  H04N2201/3239 ,  H04N2201/324

Abstract: The present invention is a method (Fig. 1) for hiding data in document contents. The method comprises receiving information relating to the document contents, (102) , wherein at least part of the document contents are of a binary nature, converting the data to halftone pixel groups according to predefined binary classifications associated with combinations of halftone pixels, (104), and embedding the halftone pixel groups into a binary portion of the document contents (104 and 114). Further, the present invention is a method for extracting data hidden in document contents (Fig. 7) The method comprises receiving information relating to the document contents (702), wherein the document contents include halftone pixel groups, extracting the halftone pixel groups from the document contents (712), and converting the halftone pixel groups to the data according to predefined binary classifications associated with combinations of halftone pixels (714).

Abstract translation: 本发明是一种在文件内容中隐藏数据的方法（图1）。 该方法包括接收与文档内容相关的信息，（102），其中文档内容的至少一部分具有二进制性质，根据与半色调像素的组合相关联的预定二进制分类将数据转换为半色调像素组（104 ），并且将半色调像素组嵌入到文档内容（104和114）的二进制部分中。 此外，本发明是一种用于提取隐藏在文档内容中的数据的方法（图7）。该方法包括接收与文档内容相关的信息，其中文档内容包括半色调像素组，从该文件内容中提取半色调像素组 文件内容（712），并且根据与半色调像素的组合相关联的预定义的二进制分类，将半色调像素组转换为数据。

公开(公告)号：WO2010043179A1

公开(公告)日：2010-04-22

申请号：PCT/CN2009/074465

申请日：2009-10-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  LU, Taoran ,  CHEN, Zhifeng ,  WU, Dapeng, Oliver ,  HUANG, Yu ,  TIAN, Jun ,  YU, Hong, Heather

Inventor： LU, Taoran ,  CHEN, Zhifeng ,  WU, Dapeng, Oliver ,  HUANG, Yu ,  TIAN, Jun ,  YU, Hong, Heather

IPC: H04N7/32

CPC classification number: H04N19/17 ,  H04N19/124 ,  H04N19/139 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

Abstract: A system and method for region-of-interest-based bit-allocation scheme for video coding is provided. A method for encoding an image sequence of inter-frames and intra-frames includes grouping the inter-frames and the intra-frames in at least one group of pictures (GOP), and performing a frame-level bit-allocation to inter-frames and the intra-frames in the GOP. For each frame of the inter-frames and the intra-frames in the GOP, the method also includes partitioning the frame into a plurality of macroblocks, identifying macroblocks in the plurality of macroblocks as having regions of interest (ROI), and performing a macroblock level bit-allocation for the frame based on macroblocks identified as having ROI. The method further includes encoding the image sequence based on the bit-allocations, thereby producing an encoded image sequence, and outputting the encoded image sequence.

Abstract translation: 提供了一种用于视频编码的基于兴趣区域的比特分配方案的系统和方法。 用于对帧间和帧内图像序列进行编码的方法包括：在至少一组图像（GOP）中对帧间帧和帧内进行分组，并且对帧间帧进行帧级比特分配 和GOP中的帧内。 对于GOP中的帧间和帧内的每帧，该方法还包括将帧划分成多个宏块，将多个宏块中的宏块识别为具有感兴趣区域（ROI），并且执行宏块 基于被识别为具有ROI的宏块的帧的级别位分配。 该方法还包括基于比特分配对图像序列进行编码，从而产生编码图像序列，并输出编码图像序列。