Context-based adaptive arithmetic coding and decoding methods and apparatuses with improved coding efficiency and video coding and decoding methods and apparatuses using the same
    31.
    发明申请
    Context-based adaptive arithmetic coding and decoding methods and apparatuses with improved coding efficiency and video coding and decoding methods and apparatuses using the same 审中-公开
    具有改进的编码效率的基于上下文的自适应算术编码和解码方法和装置以及使用其的视频编码和解码方法和装置

    公开(公告)号:US20060233240A1

    公开(公告)日:2006-10-19

    申请号:US11402934

    申请日:2006-04-13

    摘要: Context-based adaptive arithmetic coding and decoding methods and apparatuses with improved coding efficiency using the same are provided. The context-based adaptive arithmetic coding method includes resetting a context model for the given slice to a context model for a slice coded temporally before the given slice, arithmetically encoding a data symbol of the given slice using the reset context model, and updating the context model using a value of the data symbol. The context-based adaptive arithmetic decoding method includes resetting a context model for the given slice to a context model coded temporally before the given slice, arithmetically decoding a bitstream corresponding to the given slice using the reset context model to generate a data symbol of the given slice, and updating the context model using a value of the data symbol.

    摘要翻译: 提供了具有改进的编码效率的基于上下文的自适应算术编码和解码方法和装置。 基于上下文的自适应算术编码方法包括将给定切片的上下文模型重置为在给定切片之前暂时编码的切片的上下文模型,使用重置上下文模型对给定切片的数据符号进行算术编码,以及更新上下文 模型使用数据符号的值。 基于上下文的自适应算术解码方法包括将给定切片的上下文模型重新设置为在给定切片之前暂时编码的上下文模型,使用复位上下文模型对对应于给定切片的比特流进行算术解码,以生成给定切片的数据符号 切片,并使用数据符号的值更新上下文模型。

    Video encoding/decoding method and apparatus using motion prediction between temporal levels
    32.
    发明申请
    Video encoding/decoding method and apparatus using motion prediction between temporal levels 审中-公开
    视频编码/解码方法和使用时间水平之间的运动预测的装置

    公开(公告)号:US20060209961A1

    公开(公告)日:2006-09-21

    申请号:US11378357

    申请日:2006-03-20

    摘要: A video encoding/decoding method and apparatus is disclosed that can efficiently compress/decompress motion vectors in a video codec including a hierarchical temporal level decomposition process. The video encoding method including a hierarchical temporal level decomposition process involves obtaining a predicted motion vector of a second frame, which exists at a present temporal level, from a first motion vector of a first frame that exists at a lower temporal level; obtaining a second motion vector of the second frame by performing a motion estimation in a predetermined motion search area using the predicted motion vector as a start point; and encoding the second frame using the obtained second motion vector.

    摘要翻译: 公开了可以有效地压缩/解压缩包括分层时间级别分解处理的视频编解码器中的运动矢量的视频编码/解码方法和装置。 包括分层时间级别分解处理的视频编码方法涉及从存在于较低时间级别的第一帧的第一运动矢量获得在当前时间级存在的第二帧的预测运动矢量; 通过使用预测的运动矢量作为起始点,在预定运动搜索区域中执行运动估计来获得第二帧的第二运动矢量; 以及使用所获得的第二运动矢量对所述第二帧进行编码。

    Color space scalable video coding and decoding method and apparatus for the same
    33.
    发明申请
    Color space scalable video coding and decoding method and apparatus for the same 审中-公开
    彩色空间可缩放视频编码和解码方法和装置相同

    公开(公告)号:US20070065005A1

    公开(公告)日:2007-03-22

    申请号:US11601638

    申请日:2006-11-20

    IPC分类号: G06K9/36 G06K9/00

    摘要: A color space scalable video coding and decoding method and an apparatus for the same are disclosed that can adjust color components or color depth according to the performance of a decoder side. The color space scalable video coding method includes generating transform coefficients by removing the temporal redundancy and spatial redundancy of input video frames, quantizing the transform coefficients, generating a bit stream by entropy coding the quantized transform coefficients, and generating a color space scalable bit stream that includes the bit stream and position information of luminance data in the bit stream.

    摘要翻译: 公开了可以根据解码器侧的性能来调整颜色分量或颜色深度的颜色空间可分级视频编码和解码方法及其装置。 颜色空间可分级视频编码方法包括通过去除输入视频帧的时间冗余和空间冗余来产生变换系数,量化变换系数,通过对量化变换系数进行熵编码产生比特流,以及生成颜色空间可缩放比特流, 在比特流中包括比特流和亮度数据的位置信息。

    Color space scalable video coding and decoding method and apparatus for the same
    34.
    发明授权
    Color space scalable video coding and decoding method and apparatus for the same 失效
    彩色空间可缩放视频编码和解码方法和装置相同

    公开(公告)号:US08411753B2

    公开(公告)日:2013-04-02

    申请号:US11367453

    申请日:2006-03-06

    IPC分类号: H04N7/12

    摘要: A color space scalable video coding and decoding method and an apparatus for the same are disclosed that can adjust color components or color depth according to the performance of a decoder side. The color space scalable video coding method includes generating transform coefficients by removing the temporal redundancy and spatial redundancy of input video frames, quantizing the transform coefficients, generating a bit stream by entropy coding the quantized transform coefficients, and generating a color space scalable bit stream that includes the bit stream and position information of luminance data in the bit stream.

    摘要翻译: 公开了可以根据解码器侧的性能来调整颜色分量或颜色深度的颜色空间可分级视频编码和解码方法及其装置。 颜色空间可分级视频编码方法包括通过去除输入视频帧的时间冗余和空间冗余来产生变换系数,量化变换系数,通过对量化变换系数进行熵编码产生比特流,以及生成颜色空间可缩放比特流, 在比特流中包括比特流和亮度数据的位置信息。

    Method of effectively predicting multi-layer based video frame, and video coding method and apparatus using the same
    36.
    发明授权
    Method of effectively predicting multi-layer based video frame, and video coding method and apparatus using the same 失效
    有效预测多层视频帧的方法,以及使用其的视频编码方法和装置

    公开(公告)号:US08165207B2

    公开(公告)日:2012-04-24

    申请号:US13020567

    申请日:2011-02-03

    IPC分类号: H04N7/12

    摘要: A method and apparatus are provided for effectively predicting a video frame that use all of the advantages of an intra mode and an intra BL mode in multi-layer structure based-video coding. The method includes reconstructing the intra block of a lower layer using the previously reconstructed first neighboring blocks of the intra block; subtracting the first neighboring blocks from previously stored the second neighboring blocks of an upper layer corresponding to the first neighboring blocks; creating a differential predicted block based on a predetermined intra prediction mode by performing intra prediction using virtual differential neighboring blocks that are created as a result of the subtraction; adding the differential predicted block and the reconstructed intra block; and subtracting a predicted block, which is created as a result of the addition, from a block of the upper layer corresponding to the intra block.

    摘要翻译: 提供了一种用于在基于多层结构的视频编码中有效地预测使用帧内模式和帧内BL模式的所有优点的视频帧的方法和装置。 该方法包括使用先前重构的帧内块的第一相邻块来重建下层的块内块; 从先前存储的与第一相邻块对应的上层的第二相邻块中减去第一相邻块; 通过使用作为减法的结果创建的虚拟差分相邻块来执行帧内预测,​​基于预定的帧内预测模式创建差分预测块; 添加差分预测块和重构块内块; 并从对应于帧内块的上层的块中减去作为相加结果而生成的预测块。

    Method and apparatus for encoding and decoding video signals in intra-base-layer prediction mode by selectively applying intra-coding
    37.
    发明申请
    Method and apparatus for encoding and decoding video signals in intra-base-layer prediction mode by selectively applying intra-coding 审中-公开
    通过选择性地应用帧内编码来以帧内预测模式对视频信号进行编码和解码的方法和装置

    公开(公告)号:US20060233250A1

    公开(公告)日:2006-10-19

    申请号:US11402860

    申请日:2006-04-13

    IPC分类号: H04N7/12

    摘要: A method and apparatus for encoding and decoding macroblocks in an intra-base layer prediction mode by selectively applying intra-coding are provided. The method includes the steps of calculating a difference between an input frame and a base layer frame calculated from the input frame and obtaining residual signals, converting the residual signals using an intra-coding method, and generating an enhancement layer frame including the converted residual signals.

    摘要翻译: 提供了一种通过选择性地应用帧内编码来对基站内预测模式中的宏块进行编码和解码的方法和装置。 该方法包括以下步骤:计算从输入帧计算出的输入帧和基本层帧之间的差异,并获得残余信号,使用帧内编码方法转换残余信号,以及生成包括转换的残留信号的增强层帧 。

    Context-based adaptive arithmetic coding and decoding methods and apparatuses with improved coding efficiency and video coding and decoding methods and apparatuses using the same
    38.
    发明申请
    Context-based adaptive arithmetic coding and decoding methods and apparatuses with improved coding efficiency and video coding and decoding methods and apparatuses using the same 失效
    具有改进的编码效率的基于上下文的自适应算术编码和解码方法和装置以及使用其的视频编码和解码方法和装置

    公开(公告)号:US20060232454A1

    公开(公告)日:2006-10-19

    申请号:US11405573

    申请日:2006-04-18

    IPC分类号: H03M7/34

    摘要: Context-based adaptive arithmetic coding and decoding methods and apparatuses with improved coding efficiency and video coding and decoding methods and apparatuses using the same are provided. The method for performing context-based adaptive arithmetic coding on a given slice in an enhancement layer frame of a video signal having a multi-layered structure includes steps of resetting a context model for the given slice to a context model for a base layer slice at the same temporal position as the given slice, arithmetically coding a data symbol of the given slice using the reset context model, and updating the context model based on the value of the arithmetically coded data symbol.

    摘要翻译: 提供了具有改进的编码效率的基于上下文的自适应算术编码和解码方法和装置以及使用其的视频编码和解码方法和装置。 在具有多层结构的视频信号的增强层帧中对给定切片进行基于上下文的自适应算术编码的方法包括以下步骤:将给定切片的上下文模型重置为基底层切片的上下文模型 与给定切片相同的时间位置,使用重置上下文模型对给定切片的数据符号进行算术编码,以及基于算术编码的数据符号的值来更新上下文模型。

    Multi-layered intra-prediction method and video coding method and apparatus using the same
    39.
    发明申请
    Multi-layered intra-prediction method and video coding method and apparatus using the same 审中-公开
    多层帧内预测方法和视频编码方法及使用该方法的装置

    公开(公告)号:US20060104354A1

    公开(公告)日:2006-05-18

    申请号:US11271984

    申请日:2005-11-14

    摘要: A video coding method using a multi-layer structure, and more particularly, a method and apparatus for facilitating a search for an intra-prediction mode in an upper layer using an intra-prediction mode in a lower layer while efficiently and compressively encoding the searched intra-prediction mode are provided. The intra-prediction method includes searching for an optimum prediction mode of a current block among a predetermined number of intra-prediction modes, and obtaining a directional difference between the searched optimum prediction mode and an optimum prediction mode of a lower layer block corresponding to the current block.

    摘要翻译: 一种使用多层结构的视频编码方法,更具体地说,涉及一种在下层中使用帧内预测模式促进对上层内帧内预测模式的搜索的方法和装置,同时有效和​​压缩编码搜索到的 提供帧内预测模式。 帧内预测方法包括在预定数量的帧内预测模式中搜索当前块的最佳预测模式,并且获得所搜索的最佳预测模式与对应于所述帧内预测模式的下层块的最佳预测模式之间的方向差 当前块。

    Video coding method and apparatus for efficiently predicting unsynchronized frame
    40.
    发明申请
    Video coding method and apparatus for efficiently predicting unsynchronized frame 审中-公开
    用于有效预测不同步帧的视频编码方法和装置

    公开(公告)号:US20060165303A1

    公开(公告)日:2006-07-27

    申请号:US11336953

    申请日:2006-01-23

    IPC分类号: G06K9/46

    摘要: A multi-layered video encoding method is provided wherein motion estimation is performed by using one of two frames of a lower layer temporally closest to an unsynchronized frame of a current layer as a reference frame. A virtual base layer frame at the same temporal location as that of the unsynchronized frame is generated using a motion vector obtained as a result of the motion estimation and the reference frame. The generated virtual base layer frame is subtracted from the unsynchronized frame to generate a difference, and the difference is encoded.

    摘要翻译: 提供了一种多层视频编码方法,其中通过使用时间上最接近当前层的不同步帧的下层的两个帧中的一个作为参考帧来执行运动估计。 使用作为运动估计和参考帧的结果获得的运动矢量来生成与非同步帧相同的时间位置的虚拟基本层帧。 从非同步帧中减去生成的虚拟基本层帧以产生差异,并且对差异进行编码。