公开(公告)号：WO2006110890A3

公开(公告)日：2007-11-15

申请号：PCT/US2006013983

申请日：2006-04-10

Applicant: SARNOFF CORP ,  CHENG HUI ,  ISNARDI MICHAEL A ,  KOPANSKY ARKADY

Inventor： CHENG HUI ,  ISNARDI MICHAEL A ,  KOPANSKY ARKADY

IPC: H04N7/12

CPC classification number: H04N19/59 ,  H04N19/117 ,  H04N19/132 ,  H04N19/139 ,  H04N19/147 ,  H04N19/176 ,  H04N19/196 ,  H04N19/61 ,  H04N19/82 ,  H04N19/86

Abstract: A system and method of compressing a video signal can include the steps of: receiving a video signal, the video signal including frames; analyzing, for each frame, the video signal on a macroblock-by-macroblock level; determining whether to downsample a macroblock residual for each of the macroblocks; selectively downsampling a macroblock residual for some of the macroblocks; and coding the macroblocks. A system and method of decompressing a video signal can include the steps of receiving a compressed video signal, the video signal including frames; analyzing, for each frame, the video signal on a macroblock-by-macroblock level; determining whether to upsample a macroblock residual for each of the macroblocks; selectively upsampling a macroblock residual for some of the macroblocks; and decoding the macroblocks.

Abstract translation: 压缩视频信号的系统和方法可以包括以下步骤：接收视频信号，视频信号包括帧; 对于每个帧分析以宏块为单位的视频信号; 确定是否对每个所述宏块的宏块残差进行下采样; 选择性地对一些宏块的宏块残差进行下采样; 并对宏块进行编码。 解压缩视频信号的系统和方法可以包括以下步骤：接收压缩视频信号，视频信号包括帧; 对于每个帧分析以宏块为单位的视频信号; 确定是否对每个宏块的宏块残差进行上采样; 选择性地对一些宏块的宏块残差进行采样; 并解码宏块。

公开(公告)号：WO2007021500A2

公开(公告)日：2007-02-22

申请号：PCT/US2006029495

申请日：2006-07-27

Applicant: SARNOFF CORP ,  ISNARDI MICHAEL A ,  CHENG HUI

Inventor： ISNARDI MICHAEL A ,  CHENG HUI

IPC: H04J1/00 ,  H04J3/04

CPC classification number: H04M11/062

Abstract: A method and apparatus for managing delivery of video over a digital- subscriber line is provided. The method includes and the apparatus is adapted for receiving at a multiplexer information indicative of an upstream volume of video traffic for termination to the multiplexer, and for controlling the multiplexer in response to the information. Controlling the multiplexer in response to the information may include regulating, in accordance with the upstream volume of traffic, an amount of traffic buffered by the multiplexer.

Abstract translation: 提供了一种用于管理数字用户线路上的视频传送的方法和装置。 该方法包括并且该装置适于在多路复用器处接收指示视频业务的上行量的信息以供多路复用器终止，并且用于响应于该信息来控制多路复用器。 响应于该信息来控制复用器可以包括根据业务的上行量来调节由复用器缓存的业务量。

公开(公告)号：WO0174085A3

公开(公告)日：2002-03-14

申请号：PCT/US0108675

申请日：2001-03-19

Applicant: SARNOFF CORP

Inventor： ISNARDI MICHAEL A

IPC: H04N5/91 ,  G06T9/00 ,  G11B20/12 ,  H04N7/08 ,  H04N7/081 ,  H04N7/26 ,  H04N7/50 ,  H04N21/2389 ,  H04N7/24

CPC classification number: H04N21/23892 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/467 ,  H04N19/61 ,  H04N19/70

Abstract: A method and apparatus for embedding data in an encoded video bitstream, wherein the bitstream includes redundantly coded syntax element values of which one is an overriding value, includes mandatorily coding the syntax element overriding value and replacing the non-overriding syntax element value with the data to be embedded. Apparatus for embedding data in such bitstream includes a coder creating the coded video bitstream with such value mandatorily coded in the overriding syntax element position therein, and a data inserter for inserting the data to be embedded into the non-overriding syntax element position. An MPEG quantization scale code (QSC) value is mandatorily explicitly coded in the first coded macroblock following a slice header and the embedded data is inserted into the QSC position in the slice header.

Abstract translation: 一种用于在编码视频比特流中嵌入数据的方法和装置，其中所述比特流包括其中一个是重写值的冗余编码语法元素值，包括强制编码语法元素覆盖值并且用数据替换非重叠语法元素值 嵌入。 用于在这种比特流中嵌入数据的装置包括编码器，其创建具有在其中的重写语法元素位置强制编码的值的编码视频比特流;以及数据插入器，用于将要嵌入的数据插入到非覆盖语法元素位置。 在片头之后的第一编码宏块中强制地明确地编码MPEG量化尺度代码（QSC）值，并且将嵌入数据插入片头中的QSC位置。