公开(公告)号：US20180367811A1

公开(公告)日：2018-12-20

申请号：US16113357

申请日：2018-08-27

Applicant: LG ELECTRONICS INC.

Inventor： Seung Wook PARK ,  Jung Sun KIM ,  Young Hee CHOI ,  Byeong Moon Jeon ,  Joon Young PARK

IPC: H04N19/513 ,  H04N19/573 ,  H04N19/46 ,  H04N19/70 ,  H04N19/176 ,  H04N19/61 ,  H04N19/132 ,  H04N19/44

Abstract: A method of processing a video signal is disclosed. The present invention includes obtaining a current macroblock type, obtaining skip or direct mode indication information on a partition of the current macroblock according to the current macroblock type, deriving a motion vector of the partition according to the skip or direct mode indication information, and predicting a pixel value of the partition using the motion vector. Accordingly, the present invention obtains a pixel value of a reference block close to an original video using a motion vector, thereby enhancing a reconstruction ratio of the macroblock. As a macroblock uses skip or direct prediction indication information, it is unnecessary to separately code skip mode indication information and direct mode indication information on the macroblock, whereby an information size to be coded can be reduced.

公开(公告)号：US20180124426A1

公开(公告)日：2018-05-03

申请号：US15859132

申请日：2017-12-29

Applicant: LG ELECTRONICS INC.

Inventor： Yong Joon JEON ,  Seung Wook PARK ,  Jae Hyun LIM ,  Jung Sun KIM ,  Joon Young PARK ,  Young Hee CHOI ,  Jae Won SUNG ,  Byeong Moon JEON

IPC: H04N19/577 ,  H04N19/159 ,  H04N19/105 ,  H04N19/11 ,  H04N19/80 ,  H04N19/182 ,  H04N19/593 ,  H04N19/70

CPC classification number: H04N19/577 ,  H04N19/105 ,  H04N19/11 ,  H04N19/159 ,  H04N19/182 ,  H04N19/593 ,  H04N19/70 ,  H04N19/80

Abstract: An intra prediction method and a device using the intra prediction method are provided. The intra prediction method using a DC mode includes setting a bottom-right pixel to a DC-predicted value, interpolating the bottom-right pixel and an n-th top reference pixel to derive predicted values of an n-th column and interpolating the bottom-right pixel and an n-th left reference pixel to derive predicted values of an n-row, and performing bidirectional linear interpolation to derive predicted values of pixels included in a prediction unit other than the n-th row and the n-th column.

公开(公告)号：US20160255374A1

公开(公告)日：2016-09-01

申请号：US15151257

申请日：2016-05-10

Applicant: LG ELECTRONICS INC.

Inventor： Jae Hyun LIM ,  Seung Wook PARK ,  Yong Joon JEON ,  Chul Keun KIM ,  Young Hee CHOI ,  Jung Sun KIM ,  Nae Ri PARK ,  Hendry HENDRY ,  Byeong Moon JEON ,  Joon Young PARK

IPC: H04N19/91 ,  H04N19/174 ,  H04N19/159 ,  H04N19/13 ,  H04N19/70

CPC classification number: H04N19/91 ,  H04N19/13 ,  H04N19/146 ,  H04N19/154 ,  H04N19/159 ,  H04N19/174 ,  H04N19/184 ,  H04N19/463 ,  H04N19/52 ,  H04N19/593 ,  H04N19/70

Abstract: The present invention relates to an entropy decoding method and to a decoding apparatus using same. The entropy decoding method according to the present invention comprises: a step of decoding a bin of a syntax element; and a step of acquiring information on the syntax element based on the decoded bin. In the step of decoding the bin, context-based decoding or bypass decoding is performed for each bin of the syntax element.

公开(公告)号：US20160065986A1

公开(公告)日：2016-03-03

申请号：US14935631

申请日：2015-11-09

Applicant: LG ELECTRONICS INC.

Inventor： Seung Wook PARK ,  Jung Sun KIM ,  Young Hee CHOI ,  Byeong Moon Jeon ,  Joon Young PARK

IPC: H04N19/513 ,  H04N19/176 ,  H04N19/573 ,  H04N19/61

CPC classification number: H04N19/513 ,  H04N19/132 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/573 ,  H04N19/61 ,  H04N19/70

Abstract: A method of processing a video signal is disclosed. The present invention includes obtaining a current macroblock type, obtaining skip or direct mode indication information on a partition of the current macroblock according to the current macroblock type, deriving a motion vector of the partition according to the skip or direct mode indication information, and predicting a pixel value of the partition using the motion vector. Accordingly, the present invention obtains a pixel value of a reference block close to an original video using a motion vector, thereby enhancing a reconstruction ratio of the macroblock. As a macroblock uses skip or direct prediction indication information, it is unnecessary to separately code skip mode indication information and direct mode indication information on the macroblock, whereby an information size to be coded can be reduced.

Abstract translation: 公开了一种处理视频信号的方法。 本发明包括获取当前宏块类型，根据当前宏块类型获得关于当前宏块的分区的跳过或直接模式指示信息，根据跳过或直接模式指示信息导出分区的运动矢量，并且预测 使用运动矢量的分区的像素值。 因此，本发明使用运动矢量来获得接近原始视频的参考块的像素值，从而提高宏块的重构率。 由于宏块使用跳过或直接预测指示信息，因此不需要对宏块分别编码跳过模式指示信息和直接模式指示信息，从而可以减少要编码的信息大小。

公开(公告)号：US20150334419A1

公开(公告)日：2015-11-19

申请号：US14807968

申请日：2015-07-24

Applicant: LG ELECTRONICS INC.

Inventor： Seung Wook Park ,  Jung Sun KIM ,  Young Hee CHOI ,  Byeong Moon JEON ,  Joon Young PARK

IPC: H04N19/61 ,  H04N19/86 ,  H04N19/51 ,  H04N19/18 ,  H04N19/176

CPC classification number: H04N19/51 ,  H04N19/107 ,  H04N19/11 ,  H04N19/172 ,  H04N19/176 ,  H04N19/18 ,  H04N19/44 ,  H04N19/61 ,  H04N19/86

Abstract: The present invention relates to a video signal decoding method for adding an intra prediction mode as a sub-macroblock type to prediction of a macroblock in coding a video signal. Some implementations may include obtaining a macroblock type, when a macroblock includes the intra prediction coded sub-macroblock and the inter prediction coded sub-macroblock based on the macroblock type, obtaining prediction mode flag information indicating whether the sub-macroblock is the intra prediction coded or the inter prediction coded, and obtaining a prediction value of the sub-macroblock. Accordingly, implementations disclosed herein may raise coding efficiency of video signal by adding an intra prediction mode as a sub-macroblock type in predicting a macroblock.

Abstract translation: 本发明涉及用于将帧内预测模式作为子宏块类型添加到对编码视频信号的宏块进行预测的视频信号解码方法。 一些实现可以包括：当宏块包括基于宏块类型的帧内预测编码子宏块和帧间预测编码子宏块时获得宏块类型，获得指示子宏块是帧内预测编码的预测模式标志信息 或帧间预测编码，并获得子宏块的预测值。 因此，本文公开的实现方式可以通过在预测宏块中添加帧内预测模式作为子宏块类型来提高视频信号的编码效率。