公开(公告)号：WO2009000110A1

公开(公告)日：2008-12-31

申请号：PCT/CN2007/002009

申请日：2007-06-27

Applicant: THOMSON LICENSING ,  GAO, Yongying ,  WU, Yuwen ,  WANG, Chuanming

Inventor： GAO, Yongying ,  WU, Yuwen ,  WANG, Chuanming

IPC: H04N7/26

CPC classification number: H04N19/00315 ,  H04N19/33 ,  H04N19/503 ,  H04N19/59 ,  H04N19/61

Abstract: A scalable video bitstream may have an H.264 /AVC compatible base layer (BL) and a scalable enhancement layer (EL), where scalability refers to color bit depth. The H.264/AVC scalability extension SVC provides also other types of scalability, e.g. spatial scalability where the number of pixels in BL and EL are different. According to the invention, BL information is upsampled in two logical steps (TUp, BDUp), one being texture upsampling and the other being bit depth upsampling. Texture upsampling is a process that increases the number of pixels, and bit depth upsampling is a process that increases the number of values that each pixel can have, corresponding to the pixels color intensity. The upsampled BL data are used to predict the collocated EL. The BL information is upsampled at the encoder side and in the same manner at the decoder side, wherein the upsampling refers to spatial and bit depth characteristics.

Abstract translation: 可扩展视频比特流可以具有H.264 / AVC兼容的基本层（BL）和可伸缩性指向颜色位深度的可伸缩增强层（EL）。 H.264 / AVC可扩展性扩展SVC还提供其他类型的可扩展性，例如。 空间可伸缩性，其中BL和EL中的像素数不同。 根据本发明，BL信息以两个逻辑步骤（TUp，BDUp）进行上采样，一个是纹理上采样，另一个是位深度上采样。 纹理上采样是增加像素数量的过程，位深度上采样是增加每个像素可以具有的值的数量的过程，对应于像素颜色强度。 上采样BL数据用于预测并置EL。 在编码器侧以相同的方式将BL信息在解码器侧进行上采样，其中上采样是指空间和位深度特性。

公开(公告)号：WO2008049271A1

公开(公告)日：2008-05-02

申请号：PCT/CN2006/002848

申请日：2006-10-25

Applicant: THOMSON BROADBAND R & D (BEIJING) CO., LTD. ,  GAO, Yongying ,  WU, Yuwen

Inventor： GAO, Yongying ,  WU, Yuwen

IPC: H04N7/26

CPC classification number: H04N19/187 ,  H04N19/105 ,  H04N19/184 ,  H04N19/30 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

Abstract: This invention presents a scalable solution to encode the whole 12-bit raw video once to generate one bitstream that contains an H.264/AVC compatible base layer and a scalable enhancement layer. If an H.264/AVC decoder is available at the client end, only the base layer sub- bitstream is decoded and the decoded 8-bit video can be viewed on a conventional 8-bit display device; if the color bit depth scalable decoder is available at the client end, both the base layer and the enhancement layer sub-bitstreams will be decoded to obtain the 12-bit video and it can be viewed on a high quality display device that supports more than eight bit.

Abstract translation: 本发明提出了一种可扩展的解决方案，用于对整个12位原始视频进行一次编码，以生成包含H.264 / AVC兼容的基本层和可伸缩增强层的一个比特流。 如果H.264 / AVC解码器在客户端可用，则只有基层子比特流被解码，并且可以在传统的8位显示设备上观看解码的8位视频; 如果彩色位深度可缩放解码器在客户端可用，则基础层和增强层子比特流将被解码以获得12位视频，并且可以在支持多于一个的高质量显示设备上观看 八位

公开(公告)号：WO2008043198A1

公开(公告)日：2008-04-17

申请号：PCT/CN2006/002593

申请日：2006-09-30

Applicant: THOMSON BROADBAND R & D (BEIJING) CO., LTD ,  GAO, Yongying ,  WU, Yuwen ,  CHEN, Ying

Inventor： GAO, Yongying ,  WU, Yuwen ,  CHEN, Ying

IPC: H04N7/24

CPC classification number: H04N19/34 ,  H04N19/122 ,  H04N19/14 ,  H04N19/176 ,  H04N19/186 ,  H04N19/196 ,  H04N19/33 ,  H04N19/463

Abstract: Enhanced dynamic range requires more than 8 bit representation for single color components of pixels. For this purpose, normal color resolution images and high color resolution images are available. Backward compatibility can be achieved by a layered approach using a color enhancement layer, and a conventional image as color base layer. Both have same spatial and temporal resolution. Encoding of the color enhancement layer uses prediction and residual. A methods for optimized color enhancement prediction is disclosed. Color bit depth prediction is done by constructing a polynomial that approximates for all pixels of one color component of a block the color enhancement layer from the color base layer. A predicted version of the high color resolution image and a residual are generated and updated by a residual. The coefficients are compressed and added as metadata to the data stream.

Abstract translation: 增强的动态范围对于像素的单色组件需要超过8位的表示。 为此，可以使用正常的颜色分辨率图像和高分辨率图像。 可以通过使用颜色增强层和常规图像作为基色层的分层方法来实现向后兼容性。 两者具有相同的空间和时间分辨率。 颜色增强层的编码使用预测和残差。 公开了一种用于优化颜色增强预测的方法。 通过构建一个多项式来完成彩色位深度预测，所述多项式近似来自颜色基础层的颜色增强层的块的一个颜色分量的所有像素。 通过残差生成和更新高分辨率图像和残差的预测版本。 系数被压缩并作为元数据添加到数据流中。

公开(公告)号：WO2012167419A2

公开(公告)日：2012-12-13

申请号：PCT/CN2011/075390

申请日：2011-06-07

Applicant: TECHNICOLOR (CHINA) TECHNOLOGY CO., LTD. ,  WU, Yuwen

Inventor： WU, Yuwen

CPC classification number: H04N19/436 ,  H04N19/11

Abstract: Conventional intra-prediction uses pixels from left and upper neighbour blocks to predict a macroblock (MB). Thus, the MBs must be sequentially processed, since reconstructed left and upper MBs must be available for prediction. In an improved method for encoding Intra predicted MBs, a MB is encoded in two steps: first, a first portion of the MB is encoded independently, without references outside the MB. Pixels of the first portion can be Intra predicted using DC mode. Then, the first portion is reconstructed. The remaining pixels of the MB, being a second portion, are intra predicted from the reconstructed pixels of the first portion and then reconstructed. The first portion comprises at least one column or one row of pixels of the MB. The encoding is applied to at least two Intra predicted MBs per slice, or per picture if no slices are used.

Abstract translation: 常规的帧内预测使用来自左边和上部相邻块的像素来预测宏块（MB）。 因此，MB必须被顺序处理，因为重建的左上MB必须可用于预测。 在用于编码帧内预测MB的改进方法中，MB以两个步骤编码：首先，MB的第一部分被独立地编码，而不在MB之外引用。 第一部分的像素可以使用直流模式进行Intra预测。 然后，重建第一部分。 作为第二部分的MB的剩余像素从第一部分的重构像素进行帧内预测，​​然后重构。 第一部分包括MB的至少一列或一行像素。 如果没有使用切片，则编码被应用于每个切片的至少两个内部预测的MB，或者每个图片应用编码。

公开(公告)号：WO2010069714A1

公开(公告)日：2010-06-24

申请号：PCT/EP2009/065639

申请日：2009-11-23

Applicant: THOMSON LICENSING ,  WU, Yuwen

Inventor： WU, Yuwen

IPC: H04N7/50 ,  H04N7/26

CPC classification number: H04N19/61 ,  H04N19/176 ,  H04N19/30 ,  H04N19/51

Abstract: A method for inter-encoding a block of a colour image in H.264 high444 profile is proposed wherein the image comprises a first, a different second and a different third colour component. Said method comprises the steps of determining among two or more reference block candidates comprised in a different colour image that reference block candidate which has a corresponding first colour component matching said first colour component of said block at least as well as any of corresponding first colour components of the remaining reference block candidates, and encoding the second colour component of said block using a corresponding second colour component of the determined reference block. The reference block having a first colour component, which matches the corresponding first colour component of the block to-be-encoded, often is a good starting point for searching a reference block for a different second colour component of the block to-be-encoded.

Abstract translation: 提出了一种用于对H.264高444轮廓中的彩色图像的块进行帧间编码的方法，其中图像包括第一，不同的第二和不同的第三颜色分量。 所述方法包括以下步骤：在包括在不同颜色图像中的两个或更多个参考块候选之间确定参考块候选，其具有与所述块的所述第一颜色分量匹配的对应的第一颜色分量至少与对应的第一颜色分量 并且使用所确定的参考块的对应的第二颜色分量对所述块的第二颜色分量进行编码。 具有与要被编码的块的对应的第一颜色分量匹配的第一颜色分量的参考块通常是用于搜索参考块以获得要编码的块的不同第二颜色分量的良好起始点 。

公开(公告)号：WO2009051694A3

公开(公告)日：2009-06-04

申请号：PCT/US2008011712

申请日：2008-10-14

Applicant: THOMSON LICENSING ,  YIN PENG ,  LUO JIANCONG ,  GAO YONGYING ,  WU YUWEN

Inventor： YIN PENG ,  LUO JIANCONG ,  GAO YONGYING ,  WU YUWEN

IPC: H04N7/26 ,  H04N7/46 ,  H04N7/50 ,  H04N19/89

CPC classification number: H04N19/59 ,  H04N19/105 ,  H04N19/184 ,  H04N19/186 ,  H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

Abstract: There are provided methods and apparatus for inter-layer residue prediction for scalable video. An apparatus is described for an encoder (200) for encoding a block of a picture, or a decoder (300) for decoding a block of a picture, by applying inverse tone mapping to an inter-layer residue prediction process for the block, wherein the inverse tone mapping is performed in the pixel domain. Methods for encoding (440, 460) or decoding (540, 560) a block of a picture are also described; and performed by applying inverse tone mapping to an inter-layer residue prediction process for the block, wherein the inverse tone mapping is performed in the pixel domain.

Abstract translation: 提供了用于可伸缩视频的层间残差预测的方法和设备。 描述了用于通过对该块的层间残余预测过程应用逆色调映射来对用于对图片的块进行编码的编码器（200）或者用于对图片的块进行解码的解码器（300）的设备，其中 在像素域中执行逆色调映射。 还描述了用于编码（440,460）或解码（540,560）图片块的方法; 并通过对该块的层间残差预测处理应用逆色调映射来执行，其中在像素域中执行逆色调映射。

公开(公告)号：WO2008083521A1

公开(公告)日：2008-07-17

申请号：PCT/CN2007/000105

申请日：2007-01-10

Applicant: THOMSON BROADBAND R & D (BEIJING) CO., LTD ,  GAO, Yongying ,  WU, Yuwen

Inventor： GAO, Yongying ,  WU, Yuwen

IPC: H04N7/26

CPC classification number: H04N19/187 ,  H04N19/105 ,  H04N19/30 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

Abstract: The invention presents a scalable solution to encode the whole 12-bit raw video once to generate one bitstream that contains an H.264 /AVC compatible base layer and a scalable enhancement layer. If a color bit depth scalable decoder is available at the client end, both the base layer and the enhancement layer sub-bitstreams will be decoded to obtain the 12-bit video and it can be viewed on a high quality display that supports more than eight bit; otherwise only the base layer sub-bitstream is decoded using an H.264 /AVC decoder and the decoded 8-bit video can be viewed on a conventional 8-bit display. The enhancement layer contains a residual based on a prediction from the base layer, which is either based on bit-shift or based on an advanced bit depth prediction is utilized, wherein the advanced bit depth prediction method is a Smoothed Histogram method or a Localized Polynomial Approximation method.

Abstract translation: 本发明提出了一种可扩展的解决方案，用于对整个12位原始视频进行编码以产生一个包含H.264 / AVC兼容基本层和可伸缩增强层的比特流。 如果在客户端可以使用彩色位深度可伸缩解码器，则基础层和增强层子比特流将被解码以获得12位视频，并且可以在支持多于八个的高质量显示器上观看 位; 否则仅使用H.264 / AVC解码器解码基本层子比特流，并且可以在传统的8位显示器上观看解码的8位视频。 增强层包含基于来自基本层的预测的残差，其基于位移或基于高级位深度预测，其中高级位深度预测方法是平滑直方图或局部多项式 近似法。

公开(公告)号：WO2008071542A1

公开(公告)日：2008-06-19

申请号：PCT/EP2007/062893

申请日：2007-11-27

Applicant: THOMSON LICENSING ,  WU, Yuwen ,  GAO, Yongying ,  DOSER, Ingo

Inventor： WU, Yuwen ,  GAO, Yongying ,  DOSER, Ingo

IPC: H04N7/26

CPC classification number: H04N19/30 ,  H04N19/46

Abstract: A scalable video bitstream may have an H.264/AVC compatible base layer (BL) and a scalable enhancement layer (EL), where scalability refers to color bit depth. The H.264/AVC scalability extension SVC provides also other types of scalability, e.g. spatial scalability where the number of pixels in BL and EL are different. According to the invention, BL information is upsampled (TUp,BDUp) in two logical steps in adaptive order, one being texture upsampling and the other being bit depth upsampling. Texture upsampling is a process that increases the number of pixels, and bit depth upsampling is a process that increases the number of values that each pixel can have, corresponding to the pixels color intensity. The upsampled BL data are used to predict the collocated EL. A prediction order indication is transferred so that the decoder can upsample BL information in the same manner as the encoder, wherein the upsampling refers to spatial and bit depth characteristics.

Abstract translation: 可扩展视频比特流可以具有H.264 / AVC兼容的基本层（BL）和可伸缩性指向颜色位深度的可伸缩增强层（EL）。 H.264 / AVC可扩展性扩展SVC还提供其他类型的可扩展性，例如。 空间可伸缩性，其中BL和EL中的像素数不同。 根据本发明，BL信息以自适应顺序的两个逻辑步骤被上采样（TUp，BDUp），一个是纹理上采样，另一个是位深度上采样。 纹理上采样是增加像素数量的过程，位深度上采样是增加每个像素可以具有的值的数量的过程，对应于像素颜色强度。 上采样BL数据用于预测并置EL。 传送预测顺序指示，使得解码器可以以与编码器相同的方式对BL信息进行上采样，其中上采样是指空间和位深度特性。

公开(公告)号：WO2008071037A1

公开(公告)日：2008-06-19

申请号：PCT/CN2006/003415

申请日：2006-12-14

Applicant: THOMSON BROADBAND R & D (BEIJING) CO., LTD. ,  WU, Yuwen ,  GAO, Yongying

Inventor： WU, Yuwen ,  GAO, Yongying

IPC: H04N7/26

CPC classification number: H04N19/34 ,  H04N19/186 ,  H04N19/33

Abstract: A scalable video bitstream may have an H.264 /AVC compatible base layer (BL) and a scalable enhancement layer (EL), where scalability refers to color bit depth. The H.264/AVC scalability extension SVC provides also other types of scalability, e.g. spatial scalability where the number of pixels in BL and EL are different. According to the invention, BL information is upsampled in two logical steps (TUp, BDUp), one being texture upsampling and the other being bit depth upsampling. Texture upsampling is a process that increases the number of pixels, and bit depth upsampling is a process that increases the number of values that each pixel can have, corresponding to the pixels color intensity. The upsampled BL data are used to predict the collocated EL. The BL information is upsampled at the encoder side and in the same manner at the decoder side, wherein the upsampling refers to spatial and bit depth characteristics.

Abstract translation: 可伸缩视频比特流可以具有H.264 / AVC兼容基本层（BL）和可伸缩增强层（EL），其中可伸缩性是指颜色比特深度。 H.264 / AVC可伸缩性扩展SVC还提供其他类型的可伸缩性，例如， 空间可伸缩性，其中BL和EL中的像素数量不同。 根据本发明，以两个逻辑步骤（TUp，BDUp）对BL信息进行上采样，一个是纹理上采样，另一个是比特深度上采样。 纹理上采样是一个增加像素数量的过程，位深度上采样是一个过程，它可以增加每个像素可以具有的值的数量，对应于像素的颜色强度。 上采样的BL数据用于预测并置的EL。 BL信息在编码器侧以解码器侧以相同的方式被上采样，其中上采样涉及空间和比特深度特征。

公开(公告)号：WO2008019524A1

公开(公告)日：2008-02-21

申请号：PCT/CN2006/001699

申请日：2006-07-17

Applicant: THOMSON BROADBAND R & D (BEIJING) CO., LTD. ,  GAO, Yongying ,  WU, Yuwen ,  CHEN, Ying

Inventor： GAO, Yongying ,  WU, Yuwen ,  CHEN, Ying

IPC: H04N7/50

CPC classification number: G06T5/009 ,  G06T5/40 ,  G06T5/50 ,  G06T2207/10016 ,  G06T2207/10024 ,  H04N19/105 ,  H04N19/14 ,  H04N19/169 ,  H04N19/36 ,  H04N19/46 ,  H04N19/61

Abstract: A highly accurate reproduction of visual intensity and contrast rather than the conventional 8-bit color depth is more and more used, motivating the development of an enhanced dynamic range called high bit-depth. A method for encoding a first, low bit-depth image (IM BL ) of M bit RGB pixels and a second, high bit-depth video image (IM EL ) of N bit RGB pixels, M inter ) based on color histograms (Hist BL , Hist EL ) of the first and the second video image, generating a second transfer function (LUT final ) based on the first transfer function (LUT inter ), applying (TR) the second transfer function (LUT final ) to the first video image, wherein a transformed first video image (IM TR, BL ) is generated, calculating and encoding the residual (IM res ) f encoding the first video image (IM BL ) and transmitting the encoded first video image (IM BL ), the second transfer function (LUT final ) and the encoded difference.

Abstract translation: 越来越多地使用高度精确的视觉强度和对比度的再现，而不是常规的8位色彩深度，从而激发了称为高位深度的增强动态范围的发展。 一种用于编码M位RGB像素的第一，低位深度图像（IM SUB BL）和第二高位深度视频图像（IM EL EL）的方法， 具有相同空间分辨率的N位RGB像素M EL ），基于第一传递函数（LUT ）生成第二传递函数（LUT ）， 将第二传递函数（LUT ）应用（TR）到第一视频图像，其中生成经变换的第一视频图像（IM SUB TR，BL ，计算和编码编码第一视频图像（IM BL BL）的残差（IM SUB），并且发送编码的第一视频图像（IM BL BL / / SUB >），第二传递函数（LUT final）和编码的差值。