METHOD AND APPARATUS FOR ENCODING/DECODING IMAGES USING A MOTION VECTOR OF A PREVIOUS BLOCK AS A MOTION VECTOR FOR THE CURRENT BLOCK
    81.
    发明申请
    METHOD AND APPARATUS FOR ENCODING/DECODING IMAGES USING A MOTION VECTOR OF A PREVIOUS BLOCK AS A MOTION VECTOR FOR THE CURRENT BLOCK 有权
    使用先前块的运动矢量作为电流块的运动矢量来编码/解码图像的方法和装置

    公开(公告)号:US20120294363A1

    公开(公告)日:2012-11-22

    申请号:US13574110

    申请日:2011-01-19

    申请人: Tammy Lee Woo-jin Han

    发明人: Tammy Lee Woo-jin Han

    IPC分类号: H04N7/32

    摘要: An encoding method and apparatus and a decoding method and apparatus for determining a motion vector of a current block based on a motion vector of at least one previously-encoded or previously-decoded block are provided. The decoding method includes: decoding information regarding a prediction direction from among a first direction, a second direction, and bi-directions, and information regarding pixel values of the current block; determining the prediction direction in which the current block is to be predicted, based on the decoded information regarding the prediction direction, and determining a motion vector for predicting the current block in the determined prediction direction; and restoring the current block, based on the determined motion vector and the decoded information regarding the pixel values, wherein the first direction is a direction from a current picture to a previous picture, and the second direction is a direction from the current picture to a subsequent picture.

    摘要翻译: 提供了一种用于基于至少一个先前编码或先前解码的块的运动矢量来确定当前块的运动矢量的编码方法和装置以及解码方法和装置。 解码方法包括:从第一方向,第二方向和双向解码关于预测方向的信息,以及关于当前块的像素值的信息; 基于关于预测方向的解码信息,确定当前块要预测的预测方向,并且确定用于在确定的预测方向上预测当前块的运动矢量; 并且基于所确定的运动矢量和关于像素值的解码信息来恢复当前块,其中第一方向是从当前图像到先前图像的方向,并且第二方向是从当前图像到 后续图片。

    Method and apparatus for encoding and decoding image
    83.
    发明授权
    Method and apparatus for encoding and decoding image 有权
    图像编码和解码的方法和装置

    公开(公告)号:US08306115B2

    公开(公告)日:2012-11-06

    申请号:US12396582

    申请日:2009-03-03

    IPC分类号: H04B1/66 H04N7/12

    摘要: Provided are a method and apparatus for encoding an image capable of improving compression efficiency of the image by compensating for a loss due to quantization of a residual block in the frequency domain, and a method and apparatus for decoding the image. The method of encoding an image includes: generating a prediction macro block for a current macro block; generating a first residual block which is a difference between the prediction macro block and the current macro block; generating a compensation residual block by compensating for a quantization loss of the first residual block in the frequency domain; compensating for the prediction macro block by adding the compensation residual block and the prediction macro block.

    摘要翻译: 提供了一种通过补偿由于频域中的残差块的量化造成的损失而能够提高图像的压缩效率的图像的方法和装置,以及用于对图像进行解码的方法和装置。 编码图像的方法包括:产生用于当前宏块的预测宏块; 产生作为预测宏块与当前宏块之间的差的第一残差块; 通过补偿频域中的第一残差块的量化损耗来产生补偿残差块; 通过添加补偿残差块和预测宏块来补偿预测宏块。

    Multilayer-based video encoding method and apparatus thereof
    84.
    发明授权
    Multilayer-based video encoding method and apparatus thereof 有权
    多层视频编码方法及其装置

    公开(公告)号:US08155181B2

    公开(公告)日:2012-04-10

    申请号:US11709124

    申请日:2007-02-22

    IPC分类号: H04N11/02

    摘要: A method and apparatus are provided for reducing the inter-layer redundancy of a difference signal obtained from an intra-prediction when coding a video using multi-layer structure supporting intra-prediction. The method includes obtaining a first difference block between a block of a first layer and a first prediction block which is used to perform an intra-prediction on the block, obtaining a second difference block between a block of a second layer corresponding to the block of the first layer and a second prediction block which is used to perform an intra-prediction on the block, and obtaining a final difference block between the first difference block and the second difference block.

    摘要翻译: 提供一种方法和装置,用于在使用支持帧内预测的多层结构对视频进行编码时,减少从帧内预测中获得的差分信号的层间冗余。 该方法包括获得第一层的块和用于对块执行帧内预测的第一预测块之间的第一差分块,获得与块的块对应的第二层的块之间的第二差分块 第一层和第二预测块,用于对块执行帧内预测,​​并获得第一差分块和第二差分块之间的最终差分块。

    Method and apparatus for predecoding and decoding bitstream including base layer
    85.
    发明授权
    Method and apparatus for predecoding and decoding bitstream including base layer 有权
    用于对包括基本层的比特流进行预解码和解码的方法和装置

    公开(公告)号:US08031776B2

    公开(公告)日:2011-10-04

    申请号:US11180634

    申请日:2005-07-14

    申请人: Woo-jin Han

    发明人: Woo-jin Han

    IPC分类号: H04N7/12

    摘要: A method and apparatus for extracting a higher quality video stream for a given bit-rate by replacing a specific frame by a base layer frame at a predecoder are provided. A predecoding method performed by the predecoder includes selecting a mode by determining frames to be skipped according to a predetermined criterion among frames located at positions where the base layer exists, and extracting a portion of the bitstream according to the selected mode and extraction conditions.

    摘要翻译: 提供了一种用于通过在预解码器处由基本层帧替换特定帧来为给定比特率提取较高质量视频流的方法和装置。 由预解码器执行的预解码方法包括:通过根据位于基层存在的位置的帧中的预定标准来确定要跳过的帧来选择模式,并且根据所选择的模式和提取条件提取比特流的一部分。

    METHOD AND APPARATUS FOR INTRAPREDICTION ENCODING/DECODING USING IMAGE INPAINTING
    86.
    发明申请
    METHOD AND APPARATUS FOR INTRAPREDICTION ENCODING/DECODING USING IMAGE INPAINTING 失效
    使用图像处理进行编码/解码的方法和装置

    公开(公告)号:US20080310744A1

    公开(公告)日:2008-12-18

    申请号:US12129782

    申请日:2008-05-30

    IPC分类号: G06K9/36

    摘要: A method and apparatus for intraprediction encoding/decoding is provided. The method includes performing image inpainting based on pixels included in a previously encoded region of a current picture among pixels that are adjacent to a boundary between a current block and the previously encoded region of the current picture in order to predict the current block, and performing prediction encoding on the current block using the prediction result. Thus, a new intraprediction mode in which the current block can be accurately predicted can be provided.

    摘要翻译: 提供了用于非预测编码/解码的方法和装置。 该方法包括基于与当前图像块和当前图像的先前编码区域之间的边界相邻的像素之中的当前图像的先前编码区域中包括的像素执行图像修像,以便预测当前块,并执行 使用预测结果对当前块进行预测编码。 因此,可以提供其中可以准确地预测当前块的新的预预测模式。

    Method of encoding flags in layer using inter-layer correlation, method and apparatus for decoding coded flags
    88.
    发明申请
    Method of encoding flags in layer using inter-layer correlation, method and apparatus for decoding coded flags 审中-公开
    使用层间相关编码层中标记的方法,用于解码编码标志的方法和装置

    公开(公告)号:US20070086516A1

    公开(公告)日:2007-04-19

    申请号:US11476103

    申请日:2006-06-28

    IPC分类号: H04B1/66 H04N7/12

    摘要: A method and apparatus for efficiently encoding diverse flags being used in a multilayer-based scalable video codec, based on an inter-layer correlation. The encoding method includes judging whether flags of a current layer included in a specified unit area are all equal to flags of a base layer, setting a specified prediction flag according to the result of judgment, and if it is judged that the flags of the current layer are equal to the flags of the base layer, skipping the flags of the current layer and inserting the flags of the base layer and the prediction flag into a bitstream.

    摘要翻译: 一种用于在基于层间相关性的基于多层的可伸缩视频编解码器中有效地编码各种标记的方法和装置。 编码方法包括:判断包含在指定单位区域中的当前层的标志是否全部等于基本层的标志,根据判断结果设定指定的预测标志,如果判断为当前的标志 层等于基本层的标志,跳过当前层的标志,并将基本层的标志和预测标记插入到比特流中。

    Method and apparatus for entropy encoding and entropy decoding fine-granularity scalability layer video data
    89.
    发明申请
    Method and apparatus for entropy encoding and entropy decoding fine-granularity scalability layer video data 审中-公开
    用于熵编码和熵解码细粒度可扩展层视频数据的方法和装置

    公开(公告)号:US20070071088A1

    公开(公告)日:2007-03-29

    申请号:US11525912

    申请日:2006-09-25

    IPC分类号: H04B1/66 H04N11/04

    摘要: Methods and apparatuses for entropy encoding and decoding Fine-granularity Scalability (FGS) layer video data are provided. The encoding method includes extracting residual data between a first block and a second block in a layer lower than the FGS layer corresponding to the first block; obtaining transform coefficients; dividing the transform coefficients in the first block into at least two subblocks; calculating the length of a prefix of first coefficients in the subblocks; and combining the prefix with a suffix used to distinguish the first coefficients; and VLC encoding the first coefficients. The encoding apparatus includes a subblock divider, a prefix generator, and a significant coefficient encoding unit. The decoding method includes calculating a range of a transform coefficient using a length of a prefix of the transform coefficient; extracting a value of the transform coefficient; VLC decoding the value; and combining first and second subblocks having the decoded coefficients.

    摘要翻译: 提供熵编码和解码的方法和装置细粒度可扩展性(FGS)层视频数据。 所述编码方法包括:在与所述第一块相对应的所述FGS层以下的层中提取第一块与第二块之间的残差数据; 获得变换系数; 将第一块中的变换系数划分为至少两个子块; 计算子块中第一系数的前缀的长度; 以及将前缀与用于区分第一系数的后缀组合; 和VLC编码第一系数。 编码装置包括子块分割器,前缀生成器和有效系数编码单元。 解码方法包括使用变换系数的前缀的长度来计算变换系数的范围; 提取变换系数的值; VLC解码值; 以及组合具有解码系数的第一和第二子块。

    Video coding method and apparatus for efficiently predicting unsynchronized frame
    90.
    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。