公开(公告)号：US10009631B2

公开(公告)日：2018-06-26

申请号：US15790236

申请日：2017-10-23

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: H04N19/176 ,  H04N19/44 ,  H04N19/423 ,  H04N19/593 ,  H04N19/136

CPC classification number: H04N19/593 ,  G06T9/004 ,  H04N19/11 ,  H04N19/132 ,  H04N19/136 ,  H04N19/16 ,  H04N19/176 ,  H04N19/186 ,  H04N19/423 ,  H04N19/44 ,  H04N19/70

Abstract: Disclosed are an intra prediction method of a chrominance block using a luminance sample and an apparatus using the same. An image decoding method comprises the steps of: calculating an intra prediction mode of a chrominance block on the basis of an LM mapping table when the chrominance block uses an LM; and generating a prediction block for the chrominance block on the basis of the calculated intra prediction mode of the chrominance block. When intra prediction mode information of chrominance blocks are decoded, mutually different tables are used depending on whether or not an LM is used, so that encoding and decoding can be performed without an unnecessary waste of bits.

公开(公告)号：US09819954B2

公开(公告)日：2017-11-14

申请号：US14694280

申请日：2015-04-23

Applicant: LG Electronics Inc.

Inventor： Joon Young Park ,  Seung Wook Park ,  Jung Sun Kim ,  Young Hee Choi ,  Byeong Moon Jeon

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/44 ,  H04N19/70 ,  H04N19/196 ,  H04N19/11 ,  H04N19/176 ,  H04N19/184 ,  H04N19/587 ,  H04N19/61

CPC classification number: H04N19/44 ,  H04N19/11 ,  H04N19/176 ,  H04N19/184 ,  H04N19/196 ,  H04N19/587 ,  H04N19/61 ,  H04N19/70

Abstract: The present invention includes obtaining block type identification information on a partition of the current macroblock when the current macroblock is intra-mixed, specifying a block type of the current macroblock based on the block type identification information, obtaining an intra prediction mode of the current macroblock according to the block type of the partition of the current macroblock, and predicting the current macroblock using the intra prediction mode and a pixel value of a neighboring block.

公开(公告)号：US09800894B2

公开(公告)日：2017-10-24

申请号：US15389712

申请日：2016-12-23

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: H04N19/593 ,  H04N19/423 ,  H04N19/136 ,  H04N19/176 ,  H04N19/44

CPC classification number: H04N19/593 ,  G06T9/004 ,  H04N19/11 ,  H04N19/132 ,  H04N19/136 ,  H04N19/16 ,  H04N19/176 ,  H04N19/186 ,  H04N19/423 ,  H04N19/44 ,  H04N19/70

Abstract: Disclosed are an intra prediction method of a chrominance block using a luminance sample and an apparatus using the same. An image decoding method comprises the steps of: calculating an intra prediction mode of a chrominance block on the basis of an LM mapping table when the chrominance block uses an LM; and generating a prediction block for the chrominance block on the basis of the calculated intra prediction mode of the chrominance block. When intra prediction mode information of chrominance blocks are decoded, mutually different tables are used depending on whether or not an LM is used, so that encoding and decoding can be performed without an unnecessary waste of bits.

公开(公告)号：US09756358B2

公开(公告)日：2017-09-05

申请号：US15007896

申请日：2016-01-27

Applicant: LG ELECTRONICS INC.

Inventor： Jae Won Sung ,  Seung Wook Park ,  Yong Joon Jeon ,  Jung Sun Kim ,  Young Hee Choi ,  Byeong Moon Jeon ,  Joon Young Park

IPC: H04N19/593 ,  H04N19/46 ,  H04N19/86 ,  H04N19/105 ,  H04N19/14 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44

CPC classification number: H04N19/593 ,  H04N19/105 ,  H04N19/14 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/46 ,  H04N19/61 ,  H04N19/86

Abstract: A method and apparatus for decoding a video signal are disclosed. A method for decoding a video signal includes obtaining block type information of a current block, confirming a prediction mode of the current block based on the block type information, obtaining, if the prediction mode of the current block is an intra prediction mode according to the prediction mode, at least one correlation parameter information using at least one neighboring pixel of the current block, obtaining an intra prediction value of the current block using the correlation parameter information, and reconstructing the current block using the intra prediction value of the current block.

公开(公告)号：US09420313B2

公开(公告)日：2016-08-16

申请号：US14673190

申请日：2015-03-30

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: H04N19/13 ,  H04N19/91 ,  H04N19/146 ,  H04N19/154 ,  H04N19/52 ,  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.

Abstract translation: 本发明涉及一种熵解码方法及其使用的解码装置。 根据本发明的熵解码方法包括：对语法元素的bin进行解码的步骤; 以及基于解码的bin来获取关于语法元素的信息的步骤。 在对bin进行解码的步骤中，对语法元素的每个bin执行基于上下文的解码或旁路解码。

公开(公告)号：US20160119620A1

公开(公告)日：2016-04-28

申请号：US14990405

申请日：2016-01-07

Applicant: LG ELECTRONICS INC.

Inventor： Seung Wook Park ,  Jae Hyun Lim ,  Jung Sun Kim ,  Joon Young Park ,  Young Hee Choi ,  Byeong Moon Jeon ,  Yong Joon Jeon

IPC: H04N19/117 ,  H04N19/14 ,  H04N19/91 ,  H04N19/186 ,  H04N19/82 ,  H04N19/13 ,  H04N19/176

CPC classification number: H04N19/117 ,  H04N19/13 ,  H04N19/139 ,  H04N19/14 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70 ,  H04N19/82 ,  H04N19/91

Abstract: The present invention relates to an image information encoding and decoding method and a device for same. One embodiment of an image information encoding method according to the present invention, as an image information encoding method according to another embodiment of the present invention, includes the steps of: generating a restore block; applying a deblocking filter on the restore block; applying a Sample Adaptive Offset (SAO) on the restore block having the deblocking filter applied thereon; and transmitting information on the SAO application. During the applying of the SAO, the SAO is applied to chroma pixels, and during the transmitting of the information, in addition to information on whether the SAO is applied on the chroma pixels, at least one of area information, division information on the SAO coverage area, SAO type information, and SAO offset information is transmitted.

公开(公告)号：US09288486B2

公开(公告)日：2016-03-15

申请号：US14274113

申请日：2014-05-09

Applicant: LG ELECTRONICS INC.

Inventor： Seung Wook Park ,  Ji Ho Park ,  Byeong Moon Jeon ,  Doe Hun Yoon ,  Hyun Wook Park

IPC: H04N19/00 ,  H04N19/107 ,  H04N19/105 ,  H04N19/46 ,  H04N19/63 ,  H04N19/61 ,  H04N19/186 ,  H04N19/182 ,  H04N19/187 ,  H04N19/167 ,  H04N19/33 ,  H04N19/59 ,  H04N19/615 ,  H04N19/13

CPC classification number: H04N19/107 ,  H04N19/105 ,  H04N19/13 ,  H04N19/167 ,  H04N19/182 ,  H04N19/186 ,  H04N19/187 ,  H04N19/33 ,  H04N19/46 ,  H04N19/59 ,  H04N19/61 ,  H04N19/615 ,  H04N19/63 ,  H04N19/70

Abstract: In one embodiment, the method includes predicting at least a portion of a current image in a current layer based on at least a residual coded portion of a base image in a base layer, a reference image, shift information for samples in the predicted current image, and offset information indicating a position offset between at least one boundary pixel of the reference image and at least one boundary pixel of the current image. The residual coded portion represents difference pixel data.

公开(公告)号：US09042451B2

公开(公告)日：2015-05-26

申请号：US14103380

申请日：2013-12-11

Applicant: LG Electronics Inc.

Inventor： Byeong Moon Jeon

IPC: H04N7/12 ,  G06K9/36 ,  H04N19/513 ,  H04N19/105 ,  H04N19/52 ,  H04N19/50 ,  H04N19/503 ,  H04N19/176 ,  H04N19/51 ,  H04N19/61 ,  H04N19/157 ,  H04N19/573 ,  H04N19/577 ,  H04N19/56

CPC classification number: H04N19/577 ,  H04N19/105 ,  H04N19/157 ,  H04N19/176 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/521 ,  H04N19/56 ,  H04N19/573 ,  H04N19/61

Abstract: In one embodiment, a method for a moving picture coding system to derive at least one motion vector of a bi-predictive block in a current picture from a motion vector of a first block in a first picture includes selecting, by the moving picture coding system, a list 1 motion vector of the first block in the first picture as a motion vector for deriving list 0 and list 1 motion vectors of the bi-predictive block if the first block only has the list 1 motion vector, the first picture being permitted to be located temporally before the current picture and permitted to be located temporally after the current picture and deriving the list 0 and list 1 motion vectors of the bi-predictive block by applying a bit operation to the selected motion vector.

Abstract translation: 在一个实施例中，一种运动图像编码系统从第一图像中的第一块的运动矢量导出当前图像中的双向预测块的至少一个运动矢量的方法包括：通过运动图像编码系统 ，第一图像中的第一块的列表1运动矢量作为用于导出列表0的运动矢量和列表1双预测块的运动矢量，如果第一块仅具有列表1运动矢量，则允许第一图像 位于时间上位于当前画面之前，并被允许在当前画面之后的时间位置，并通过对所选择的运动矢量应用位操作来导出列表0和列表1双重预测块的运动矢量。

公开(公告)号：US08908983B2

公开(公告)日：2014-12-09

申请号：US14109057

申请日：2013-12-17

Applicant: LG Electronics Inc.

Inventor： Byeong Moon Jeon ,  Yoon Seong Soh

IPC: G06K9/36 ,  H04N19/51 ,  H04N19/583 ,  H04N19/577 ,  H04N19/44 ,  H04N19/61 ,  H04N19/50 ,  H04N19/56 ,  H04N19/176

CPC classification number: H04N19/105 ,  H04N19/139 ,  H04N19/176 ,  H04N19/44 ,  H04N19/50 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/56 ,  H04N19/563 ,  H04N19/573 ,  H04N19/577 ,  H04N19/61

Abstract: A method of predicting a motion vector for a current block in a current picture includes obtaining, by a moving picture decoding device, a direction of a reference picture of the current picture, based on a display order of the reference picture and a display order of the current picture, obtaining, by the moving picture decoding device, at least three forward motion vectors for at least three blocks other than the current block based on the direction of the reference picture, wherein the at least three forward motion vectors correspond to the at least three other blocks, respectively, predicting, by the moving picture decoding device, a forward motion vector for the current block by using a median operation of the at least three forward motion vectors and decoding the current block in the current picture using the predicted forward motion vector for the current block.

Abstract translation: 一种预测当前图像中的当前块的运动矢量的方法包括：通过运动图像解码装置，基于参考图像的显示顺序和显示顺序来获得当前图像的参考图像的方向 当前图像，由运动图像解码装置获取至少三个前向运动矢量，用于基于参考图像的方向的当前块以外的至少三个块，其中至少三个前向运动矢量对应于在 至少三个其他块，分别由运动图像解码装置预测用于当前块的前向运动矢量，通过使用至少三个前向运动矢量的中值运算并使用预测的向前解码当前图像中的当前块 当前块的运动矢量。

公开(公告)号：US08902983B2

公开(公告)日：2014-12-02

申请号：US13972238

申请日：2013-08-21

Applicant: LG Electronics Inc.

Inventor： Byeong Moon Jeon

IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/577 ,  H04N19/00 ,  H04N19/61 ,  H04N19/503 ,  H04N19/583 ,  H04N19/139 ,  H04N19/51

CPC classification number: H04N19/137 ,  H04N19/00 ,  H04N19/139 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/573 ,  H04N19/577 ,  H04N19/58 ,  H04N19/61

Abstract: A block prediction method using improved direct mode for B picture in a moving picture coding system obtains forward and backward motion vectors of direct mode, obtains two distinct motion-compensated blocks using the forward and backward motion vectors, and predicts a block of the B picture which is about to be coded (or decoded) presently by applying an interpolative prediction to the above blocks, and thereby, accuracy of the predicted block can be improved and the coding efficiency also can be improved.

Abstract translation: 在运动图像编码系统中使用改进的B图像直接模式的块预测方法获得直接模式的向前和向后运动矢量，使用前向和后向运动矢量获得两个不同的运动补偿块，并且预测B图像的块 其将通过对上述块应用内插预测来进行编码（或解码），从而可以提高预测块的精度并提高编码效率。