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    • 1. 发明申请
    • METHOD FOR ENCODING AND/OR DECODING IMAGES ON MACROBLOCK LEVEL USING INTRA-PREDICTION
    • 使用内部预测编码和/或解码宏块水平图像的方法
    • US20140205008A1
    • 2014-07-24
    • US14124708
    • 2011-06-07
    • Yu Wen Wu
    • Yu Wen Wu
    • H04N19/593
    • 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.
    • 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。
    • 3. 发明授权
    • Method and apparatus for encoding and/or decoding video data using enhancement layer residual prediction for bit depth scalability
    • 使用增强层残差预测来进行比特深度可扩展性编码和/或解码视频数据的方法和装置
    • US08428129B2
    • 2013-04-23
    • US12448151
    • 2006-12-14
    • Yu Wen WuYong Ying Gao
    • Yu Wen WuYong Ying Gao
    • H04N7/26H04N7/46H04N11/02H04N11/04
    • H04N19/34H04N19/186H04N19/33
    • A scalable video bitstream may have an H.264/AVC compatible base layer and a scalable enhancement layer, 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, 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.
    • 可分级视频比特流可以具有H.264 / AVC兼容的基本层和可伸缩性增强层,其中可伸缩性指的是色彩位深度。 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信息在两个逻辑步骤中被上采样,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。
    • 10. 发明授权
    • Method and apparatus for encoding and/or decoding bit depth scalable video data using adaptive enhancement layer prediction
    • 使用自适应增强层预测对比特深度可分级视频数据进行编码和/或解码的方法和装置
    • US08477853B2
    • 2013-07-02
    • US12448153
    • 2006-12-14
    • Yu Wen WuYong Ying Gao
    • Yu Wen WuYong Ying Gao
    • H04N7/18
    • H04N19/34H04N19/186H04N19/30
    • 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 SVC standard allows spatial inter-layer prediction, wherein a residual in the EL is generated which is then intra coded. Another spatial intra-coding mode for EL is pure intra coding (I_N×N). The invention discloses a new intra-coding mode and two new inter coding modes, particularly for bit depth scalability. The new intra coding mode uses encoding of the residual between upsampled reconstructed BL and original EL, using mode selection. Two possible modes are residual prediction from BL and additional intra-coding of this residual. The new inter coding modes use also prediction of EL from reconstructed BL. In a first inter coding mode, the residual is encoded using Motion Estimation based on this residual. In a second inter coding mode, the residual is encoded using upsampled motion information from the BL.
    • 可扩展视频比特流可以具有H.264 / AVC兼容基本层(BL)和可伸缩性指的是颜色位深度的可伸缩增强层(EL)。 SVC标准允许空间层间预测,其中生成EL中的残差然后进行帧内编码。 EL的另一个空间帧内编码模式是纯帧内编码(I_N×N)。 本发明公开了一种新的帧内编码模式和两种新的帧间编码模式,特别是用于比特深度可扩展性。 新的帧内编码模式使用模式选择对上采样的重构BL和原始EL之间的残差进行编码。 两种可能的模式是来自BL的剩余预测和该残差的附加帧内编码。 新的帧间编码模式还使用来自重建BL的EL的预测。 在第一帧间编码模式中,使用基于该残差的运动估计对残差进行编码。 在第二帧间编码模式中,使用来自BL的上采样运动信息来编码残差。