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21. 发明申请

US20060088101A1 Method and apparatus for effectively compressing motion vectors in video coder based on multi-layer 有权
标题翻译：基于多层视频编码器有效压缩运动矢量的方法和装置
公开(公告)号：US20060088101A1
公开(公告)日：2006-04-27
申请号：US11254051
申请日：2005-10-20
申请人： Woo-jin Han , Kyo-hyuk Lee , Jae-young Lee , Sang-chang Cha , Bae-keun Lee , Ho-jin Ha
发明人： Woo-jin Han , Kyo-hyuk Lee , Jae-young Lee , Sang-chang Cha , Bae-keun Lee , Ho-jin Ha
IPC分类号： H04N11/02 , H04N7/12 , H04B1/66 , H04N11/04
CPC分类号： H04N19/577 , H04N19/31 , H04N19/51 , H04N19/517
摘要： A method and apparatus of improving the compression efficiency of a motion vector by efficiently predicting a motion vector in an enhancement layer from a motion vector in a base layer in a video coding method using a multi-layer are provided. The method includes obtaining a motion vector in a base layer frame having a first frame rate from an input frame, obtaining a motion vector in a first enhancement layer frame having a second frame rate from the input frame, the second frame rate being greater than the first frame rate, generating a predicted motion vector by referring to a motion vector for at least one frame among base layer frames present immediately before and after the same temporal position as the first enhancement layer frame if there is no base layer frame at the same temporal position as the first enhancement layer frame, and coding a difference between the motion vector in the first enhancement layer frame and the generated predicted motion vector, and the obtained motion vector in the base layer.
摘要翻译：提供一种通过使用多层的视频编码方法从基层中的运动矢量有效地预测增强层中的运动矢量来提高运动矢量的压缩效率的方法和装置。该方法包括从输入帧获得具有第一帧速率的基本层帧中的运动矢量，从输入帧获得具有第二帧速率的第一增强层帧中的运动矢量，第二帧速率大于第一帧速率，如果在相同时刻没有基本层帧的情况下，通过参考紧邻在与第一增强层帧相同的时间位置之前和之后的基本层帧中的至少一个帧的运动矢量来生成预测的运动矢量位置作为第一增强层帧，并且编码第一增强层帧中的运动矢量与生成的预测运动矢量之间的差，以及所获得的基本层中的运动矢量。

22. 发明申请

US20070280350A1 Method of assigning priority for controlling bit rate of bitstream, method of controlling bit rate of bitstream, video decoding method, and apparatus using the same 有权
标题翻译：分配用于控制比特流比特率的优先级的方法，控制比特流的比特率的方法，视频解码方法以及使用该比特率的装置
公开(公告)号：US20070280350A1
公开(公告)日：2007-12-06
申请号：US11708336
申请日：2007-02-21
申请人： Manu Mathew , Kyo-hyuk Lee , Woo-jin Han
发明人： Manu Mathew , Kyo-hyuk Lee , Woo-jin Han
IPC分类号： H04B1/66
CPC分类号： H04N19/36 , H04N19/187 , H04N19/19 , H04N19/34
摘要： A method of assigning a priority for controlling a bit rate of a bitstream having a plurality of quality layers is provided. The method includes composing first quality layers for a reference picture, composing second quality layers for a current picture that is encoded with reference to the reference picture, and assigning a priority each of the first and second quality layers, wherein a low priority is assigned to a quality layer having a small influence on a video quality reduction of the current picture when the quality layer is truncated.
摘要翻译：提供了一种分配用于控制具有多个质量层的比特流的比特率的优先级的方法。该方法包括：为参考图像组合第一质量层，为参照参考图像编码的当前图像构成第二质量层，以及分配第一和第二质量层的优先级，其中低优先级被分配给质量层在质量层被截断时对当前图像的视频质量降低具有小的影响。

23. 发明申请

US20070025448A1 Deblocking filtering method considering intra-BL mode and multilayer video encoder/decoder using the same 审中-公开
标题翻译：考虑BL内模式的解块滤波方法及使用其的多层视频编解码器
公开(公告)号：US20070025448A1
公开(公告)日：2007-02-01
申请号：US11483646
申请日：2006-07-11
申请人： Sang-chang Cha , Kyo-hyuk Lee , Bae-keun Lee , Woo-jin Han , Jae-young Lee , Ho-jin Ha
发明人： Sang-chang Cha , Kyo-hyuk Lee , Bae-keun Lee , Woo-jin Han , Jae-young Lee , Ho-jin Ha
IPC分类号： H04N11/04 , H04B1/66
CPC分类号： H04N19/86 , H04N19/117 , H04N19/159 , H04N19/176 , H04N19/61
摘要： Deblocking filter used in a video encoder/decoder based on a multilayer. In deciding a deblocking filter strength when performing a deblocking filtering with respect to a boundary between a current block coded by an intra-BL mode and its neighboring block, it is determined whether the current block or the neighboring block has coefficients. The filter strength is decided as a first filter strength if it is determined that the current block or the neighboring block has the coefficients, and the filter strength is decided as a second filter strength if it is determined that the current block or the neighboring block does not have the coefficients. The first filter strength is greater than the second filter strength.
摘要翻译：基于多层的视频编码器/解码器中使用的去块滤波器。在对由BL模式编码的当前块与其相邻块之间的边界执行解块滤波时，决定解块滤波器强度时，确定当前块或相邻块是否具有系数。如果确定当前块或相邻块具有系数，则将滤波器强度确定为第一滤波器强度，并且如果确定当前块或相邻块确定了滤波器强度，则将滤波器强度确定为第二滤波器强度没有系数。第一过滤强度大于第二过滤强度。

24. 发明申请

US20070019726A1 Method and apparatus for encoding and decoding video signal by extending application of directional intra-prediction 审中-公开
标题翻译：通过扩展定向帧内预测的应用对视频信号进行编码和解码的方法和装置
公开(公告)号：US20070019726A1
公开(公告)日：2007-01-25
申请号：US11490035
申请日：2006-07-21
申请人： Sang-chang Cha , Kyo-hyuk Lee , Woo-jin Han
发明人： Sang-chang Cha , Kyo-hyuk Lee , Woo-jin Han
IPC分类号： H04N7/12 , H04N11/04
CPC分类号： H04N19/187 , H04N19/11 , H04N19/124 , H04N19/136 , H04N19/176 , H04N19/30 , H04N19/593
摘要： A method and apparatus for encoding and decoding a video signal by extending an application of directional intra-prediction. When performing a directional intra-prediction during video data encoding, a second block in a frame is searched in order to predict information of a first block included in the video data from the second block existing in the same frame as the first block, a residual between information included in the searched second block and the information included in the first block is calculated, and the calculated residual is encoded. The second block exists in a position adjacent to the first block, and the first block refers to the second block in a third direction existing between a first direction and a second direction that are adjacent to each other for use in the directional intra-prediction.
摘要翻译：一种通过扩展定向帧内预测的应用来对视频信号进行编码和解码的方法和装置。当在视频数据编码期间执行定向帧内预测时，搜索帧中的第二块以便从与第一块相同的帧中存在的第二块中预测包括在视频数据中的第一块的信息，剩余计算包括在搜索到的第二块中的信息和包括在第一块中的信息之间，并且对所计算的残差进行编码。第二块存在于与第一块相邻的位置，并且第一块是指存在于彼此相邻的第一方向和第二方向之间的第三方向上的第二块，用于定向帧内预测。

25. 发明申请

US20060215762A1 Video coding and decoding method using weighted prediction and apparatus for the same 有权
公开(公告)号：US20060215762A1
公开(公告)日：2006-09-28
申请号：US11388149
申请日：2006-03-24
申请人： Woo-jin Han , Kyo-hyuk Lee
发明人： Woo-jin Han , Kyo-hyuk Lee
IPC分类号： H04N11/02 , H04N11/04 , H04N7/12 , H04B1/66
CPC分类号： H04N19/577 , H04N19/105 , H04N19/137 , H04N19/147 , H04N19/176 , H04N19/187 , H04N19/33 , H04N19/59
摘要： A video coding and decoding method using a weighted prediction and an apparatus for the same are provided. The video coding method includes generating a predicted image for a present block; generating a weighted prediction factor which is a scaling factor of the predicted image that minimizes the difference between the present block and the predicted image; generating a weighted prediction image by multiplying the predicted image by the weighted prediction factor; and coding a residual signal generated by subtracting the weighted prediction image from the present block.

26. 发明授权

US08369410B2 Method and apparatus for encoding/decoding motion vector 有权
标题翻译：用于编码/解码运动矢量的方法和装置
公开(公告)号：US08369410B2
公开(公告)日：2013-02-05
申请号：US13553358
申请日：2012-07-19
申请人： Tammy Lee , Woo-jin Han , Kyo-hyuk Lee
发明人： Tammy Lee , Woo-jin Han , Kyo-hyuk Lee
IPC分类号： H04N7/12
CPC分类号： H04N19/139 , H04N19/105 , H04N19/117 , H04N19/124 , H04N19/147 , H04N19/159 , H04N19/176 , H04N19/184 , H04N19/51 , H04N19/513 , H04N19/52 , H04N19/61 , H04N19/70 , H04N19/865 , H04N19/96
摘要： Provided are methods and apparatuses for encoding and decoding a motion vector. The method of encoding the motion vector includes: selecting, as a mode of encoding information about a motion vector predictor of the current block, a first mode in which information indicating the motion vector predictor from among at least one motion vector predictor is encoded or a second mode in which information indicating generation of the motion vector predictor based on blocks or pixels included in a previously encoded area adjacent to the current block is encoded; determining the motion vector predictor of the current block according to the selected mode and encoding the information about the motion vector predictor of the current block; and encoding a difference vector between the motion vector of the current block and the motion vector predictor of the current block.
摘要翻译：提供了用于对运动矢量进行编码和解码的方法和装置。对运动矢量进行编码的方法包括：作为对当前块的运动矢量预测器的信息进行编码的模式，选择对从至少一个运动矢量预测器中的运动矢量预测器进行编码的信息进行编码的第一模式，第二模式，其中编码基于与当前块相邻的先前编码区域中包括的块或像素的运动矢量预测器的生成的信息; 根据所选择的模式确定当前块的运动矢量预测器，并对关于当前块的运动矢量预测器的信息进行编码; 并且对当前块的运动矢量与当前块的运动矢量预测器之间的差矢量进行编码。

27. 发明授权

US08351502B2 Method and apparatus for adaptively selecting context model for entropy coding 有权
标题翻译：用于自适应选择熵编码的上下文模型的方法和装置
公开(公告)号：US08351502B2
公开(公告)日：2013-01-08
申请号：US11405665
申请日：2006-04-18
申请人： Bae-keun Lee , Kyo-hyuk Lee , Sang-chang Cha , Woo-jin Han
发明人： Bae-keun Lee , Kyo-hyuk Lee , Sang-chang Cha , Woo-jin Han
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/423 , H04N19/13 , H04N19/187 , H04N19/196 , H04N19/30 , H04N19/31 , H04N19/33 , H04N19/34 , H04N19/593 , H04N19/61 , H04N19/70
摘要： A method and apparatus for adaptively selecting a context model for entropy coding and a video decoder are provided. A method of coding a residual prediction flag indicating whether residual data for an enhancement layer block of a multi-layered video signal is predicted from residual data for a lower layer block corresponding to the residual data for the enhancement layer block includes the steps of calculating the energy of the residual data for the lower layer block, determining a coding method for the residual prediction flag according to the energy, and coding the residual prediction flag using the determined coding method.
摘要翻译：提供一种用于自适应地选择用于熵编码的上下文模型和视频解码器的方法和装置。编码残差预测标志的方法，该残差预测标志指示用于与用于增强层块的残差数据相对应的下层块的残差数据的多层视频信号的增强层块的残差数据是否被预测包括以下步骤：根据能量确定残差预测标志的编码方法，并使用所确定的编码方法对残差预测标记进行编码。

28. 发明授权

US08116578B2 Method and apparatus for effectively compressing motion vectors in video coder based on multi-layer 有权
标题翻译：基于多层视频编码器有效压缩运动矢量的方法和装置
公开(公告)号：US08116578B2
公开(公告)日：2012-02-14
申请号：US13005990
申请日：2011-01-13
申请人： Woo-jin Han , Kyo-hyuk Lee , Jae-young Lee , Sang-chang Cha , Bae-keun Lee , Ho-jin Ha
发明人： Woo-jin Han , Kyo-hyuk Lee , Jae-young Lee , Sang-chang Cha , Bae-keun Lee , Ho-jin Ha
IPC分类号： G06K9/46
CPC分类号： H04N19/577 , H04N19/31 , H04N19/51 , H04N19/517
摘要： A method and apparatus of improving the compression efficiency of a motion vector by efficiently predicting a motion vector in an enhancement layer from a motion vector in a base layer in a video coding method using a multi-layer are provided. The method includes obtaining a motion vector in a base layer frame having a first frame rate from an input frame, obtaining a motion vector in a first enhancement layer frame having a second frame rate from the input frame, the second frame rate being greater than the first frame rate, generating a predicted motion vector by referring to a motion vector for at least one frame among base layer frames present immediately before and after the same temporal position as the first enhancement layer frame if there is no base layer frame at the same temporal position as the first enhancement layer frame, and coding a difference between the motion vector in the first enhancement layer frame and the generated predicted motion vector, and the obtained motion vector in the base layer.
摘要翻译：提供一种通过使用多层的视频编码方法从基层中的运动矢量有效地预测增强层中的运动矢量来提高运动矢量的压缩效率的方法和装置。该方法包括从输入帧获得具有第一帧速率的基本层帧中的运动矢量，从输入帧获得具有第二帧速率的第一增强层帧中的运动矢量，第二帧速率大于第一帧速率，如果在相同时刻没有基本层帧的情况下，通过参考紧邻在与第一增强层帧相同的时间位置之前和之后的基本层帧中的至少一个帧的运动矢量来生成预测运动矢量位置作为第一增强层帧，并且编码第一增强层帧中的运动矢量与生成的预测运动矢量之间的差，以及所获得的基本层中的运动矢量。

29. 发明授权

US07889793B2 Method and apparatus for effectively compressing motion vectors in video coder based on multi-layer 有权
标题翻译：基于多层视频编码器有效压缩运动矢量的方法和装置
公开(公告)号：US07889793B2
公开(公告)日：2011-02-15
申请号：US11254051
申请日：2005-10-20
申请人： Woo-jin Han , Kyo-hyuk Lee , Jae-young Lee , Sang-chang Cha , Bae-keun Lee , Ho-jin Ha
发明人： Woo-jin Han , Kyo-hyuk Lee , Jae-young Lee , Sang-chang Cha , Bae-keun Lee , Ho-jin Ha
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04
CPC分类号： H04N19/577 , H04N19/31 , H04N19/51 , H04N19/517
摘要： A method and apparatus of improving the compression efficiency of a motion vector by efficiently predicting a motion vector in an enhancement layer from a motion vector in a base layer in a video coding method using a multi-layer are provided. The method includes obtaining a motion vector in a base layer frame having a first frame rate from an input frame, obtaining a motion vector in a first enhancement layer frame having a second frame rate from the input frame, the second frame rate being greater than the first frame rate, generating a predicted motion vector by referring to a motion vector for at least one frame among base layer frames present immediately before and after the same temporal position as the first enhancement layer frame if there is no base layer frame at the same temporal position as the first enhancement layer frame, and coding a difference between the motion vector in the first enhancement layer frame and the generated predicted motion vector, and the obtained motion vector in the base layer.
摘要翻译：提供一种通过使用多层的视频编码方法从基层中的运动矢量有效地预测增强层中的运动矢量来提高运动矢量的压缩效率的方法和装置。该方法包括从输入帧获得具有第一帧速率的基本层帧中的运动矢量，从输入帧获得具有第二帧速率的第一增强层帧中的运动矢量，第二帧速率大于第一帧速率，如果在相同时刻没有基本层帧的情况下，通过参考紧邻在与第一增强层帧相同的时间位置之前和之后的基本层帧中的至少一个帧的运动矢量来生成预测的运动矢量位置作为第一增强层帧，并且编码第一增强层帧中的运动矢量与生成的预测运动矢量之间的差，以及所获得的基本层中的运动矢量。

30. 发明申请

US20080107181A1 METHOD OF AND APPARATUS FOR VIDEO ENCODING AND DECODING BASED ON MOTION ESTIMATION 有权
标题翻译：基于运动估计的视频编码和解码的方法和装置
公开(公告)号：US20080107181A1
公开(公告)日：2008-05-08
申请号：US11936128
申请日：2007-11-07
申请人： Woo-jin Han , Kyo-hyuk Lee , Tammy Lee
发明人： Woo-jin Han , Kyo-hyuk Lee , Tammy Lee
IPC分类号： H04N7/26
CPC分类号： H04N19/537 , H04N19/132 , H04N19/147 , H04N19/176 , H04N19/52 , H04N19/61
摘要： Provided is a method of and apparatus for video encoding and decoding based on motion estimation. The method includes generating a motion vector by searching a reference picture using pixels of a current block, generating a prediction motion vector that is a prediction value of the motion vector by searching the reference picture using previously encoded pixels located adjacent to the current block, and encoding the current block based on the motion vector and the prediction motion vector. By accurately predicting the motion vector of the current block, the number of bits required for encoding the motion vector can be reduced, thereby improving the compression rate of video data.
摘要翻译：提供了一种基于运动估计的用于视频编码和解码的方法和装置。该方法包括通过使用当前块的像素搜索参考图像来生成运动矢量，通过使用与当前块相邻的先前编码的像素搜索参考图像来生成作为运动矢量的预测值的预测运动矢量，以及基于运动矢量和预测运动矢量对当前块进行编码。通过精确地预测当前块的运动矢量，可以减少编码运动矢量所需的位数，从而提高视频数据的压缩率。

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