公开(公告)号：US10659810B2

公开(公告)日：2020-05-19

申请号：US16132949

申请日：2018-09-17

Applicant: Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： Hui Yong Kim ,  Gwang Hoon Park ,  Kyung Yong Kim ,  Sang Min Kim ,  Sung Chang Lim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC: H04N19/109 ,  H04N19/577 ,  H04N19/503 ,  H04N19/176 ,  H04N19/513 ,  H04N19/593 ,  H04N19/52 ,  H04N19/119 ,  H04N19/61 ,  H04N19/107 ,  H04N19/82

Abstract: According to the present invention, an image encoding apparatus comprises: a motion prediction unit which derives motion information on a current block in the form of the motion information including L0 motion information and L1 motion information; a motion compensation unit which performs a motion compensation for the current block on the basis of at least one of the L0 motion information and L1 motion information so as to generate a prediction block corresponding to the current block; and a restoration block generating unit which generates a restoration block corresponding to the current block based on the prediction block. According to the present invention, image encoding efficiency can be improved.

公开(公告)号：US10575014B2

公开(公告)日：2020-02-25

申请号：US16151627

申请日：2018-10-04

Applicant: Electronics and Telecommunications Research Institute ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Gun Bang ,  Won Sik Cheong ,  Gi Mun Um ,  Nam Ho Hur ,  Gwang Hoon Park ,  Kyung Yong Kim

IPC: H04N19/593 ,  H04N19/597 ,  H04N19/176 ,  H04N19/46 ,  H04N19/96 ,  H04N19/107 ,  H04N19/44

Abstract: Disclosed are an image encoding method using a skip mode and a device using the method. The image encoding method may comprise the steps of: judging whether there is residual block data of a prediction target block on the basis of predetermined data indicating whether residual block data has been encoded; and, if there is residual block data, restoring the prediction target block on the basis of the residual block data and an intra-screen predictive value of the prediction target block. Consequently, encoding and decoding efficiency can be increased by carrying out the encoding and decoding of screen residual data only for prediction target blocks where there is a need for a residual data block in accordance with screen similarity.

公开(公告)号：US10574985B2

公开(公告)日：2020-02-25

申请号：US16244854

申请日：2019-01-10

Applicant: Electronics and Telecommunications Research Institute ,  Kwangwoon University Industry-Academic Collaboration Foundation ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： Sung Chang Lim ,  Ha Hyun Lee ,  Se Yoon Jeong ,  Hui Yong Kim ,  Suk Hee Cho ,  Jong Ho Kim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim ,  Chie Teuk Ahn ,  Dong Gyu Sim ,  Seoung Jun Oh ,  Gwang Hoon Park ,  Sea Nae Park ,  Chan Woong Jeon

IPC: H04N19/117 ,  H04N19/46 ,  H04N19/593 ,  H04N19/132 ,  H04N19/176 ,  H04N19/17 ,  H04N19/50 ,  H04N19/109 ,  H04N19/159 ,  H04N19/174 ,  H04N19/192 ,  H04N19/82

Abstract: The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.

公开(公告)号：US10469840B2

公开(公告)日：2019-11-05

申请号：US15928878

申请日：2018-03-22

Applicant: Electronics and Telecommunications Research Institute ,  Kwangwoon University Industry-Academic Collaboration Foundation ,  University-Industry Cooperation Group of Kyung Hee University ,  Korea Advanced Institute of Science and Technology

Inventor： Sung-Chang Lim ,  Ha Hyun Lee ,  Hui Yong Kim ,  Se Yoon Jeong ,  Suk Hee Cho ,  Hae Chul Choi ,  Jong Ho Kim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woo Hong ,  Dong Gyu Sim ,  Seoung Jun Oh ,  Gwang Hoon Park ,  Mun Churl Kim ,  Neung Joo Hwang ,  Sea Nae Park

IPC: H04N19/122 ,  H04N19/124 ,  H04N19/176 ,  H04N19/12 ,  H04N19/139 ,  H04N19/44 ,  H04N19/625 ,  H04N19/50 ,  H04N19/60 ,  H04N19/14 ,  H04N19/18 ,  H04N19/182 ,  H04N19/107 ,  H04N19/11 ,  H04N19/119 ,  H04N19/13 ,  H04N19/159 ,  H04N19/52 ,  H04N19/55 ,  H04N19/593 ,  H04N19/615 ,  H04N19/91

Abstract: Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit.

公开(公告)号：US10341661B2

公开(公告)日：2019-07-02

申请号：US15630831

申请日：2017-06-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Hui Yong Kim ,  Sung Chang Lim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim ,  Gwang Hoon Park ,  Kyung Yong Kim

IPC: G06K9/00 ,  H04N19/129 ,  H04N19/176 ,  H04N19/70 ,  H04N19/122 ,  H04N19/119 ,  H04N19/136 ,  H04N19/61 ,  H04N19/159 ,  H04N19/593 ,  H04N19/625 ,  H04N19/124 ,  H04N19/157 ,  H04N19/44

Abstract: A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.

公开(公告)号：US10218972B2

公开(公告)日：2019-02-26

申请号：US15649330

申请日：2017-07-13

Applicant: Electronics and Telecommunications Research Institute ,  Kwangwoon University Industry-Academic Collaboration Foundation ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： Sung Chang Lim ,  Ha Hyun Lee ,  Se Yoon Jeong ,  Hui Yong Kim ,  Suk Hee Cho ,  Jong Ho Kim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim ,  Chie Teuk Ahn ,  Dong Gyu Sim ,  Seoung Jun Oh ,  Gwang Hoon Park ,  Sea Nae Park ,  Chan Woong Jeon

IPC: H04N19/11 ,  H04N19/117 ,  H04N19/46 ,  H04N19/593 ,  H04N19/132 ,  H04N19/17 ,  H04N19/50 ,  H04N19/109 ,  H04N19/159 ,  H04N19/174 ,  H04N19/192 ,  H04N19/82 ,  H04N19/176

Abstract: The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.

公开(公告)号：US09832474B2

公开(公告)日：2017-11-28

申请号：US15584474

申请日：2017-05-02

Applicant: Electronics and Telecommunications Research Institute ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： Hui Yong Kim ,  Gwang Hoon Park ,  Kyung Yong Kim ,  Sang Min Kim ,  Sung Chang Lim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim

IPC: H04N19/176 ,  H04N19/103 ,  H04N19/513 ,  H04N19/139 ,  H04N19/124

CPC classification number: H04N19/105 ,  H04N19/103 ,  H04N19/124 ,  H04N19/136 ,  H04N19/139 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/503 ,  H04N19/513 ,  H04N19/52

Abstract: The present invention relates to a method and apparatus for setting a reference picture index of a temporal merging candidate. An inter-picture prediction method using a temporal merging candidate can include the steps of: determining a reference picture index for a current block; and inducing a temporal merging candidate block of the current block and calculating a temporal merging candidate from the temporal merging candidate block, wherein the reference picture index of the temporal merging candidate can be calculated regardless of whether a block other than the current block is decoded. Accordingly, a video processing speed can be increased and video processing complexity can be reduced.

公开(公告)号：US09723311B2

公开(公告)日：2017-08-01

申请号：US15255035

申请日：2016-09-01

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Hui Yong Kim ,  Sung Chang Lim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim ,  Gwang Hoon Park ,  Kyung Yong Kim

IPC: G06K9/36 ,  H04N19/119 ,  H04N19/176 ,  H04N19/70 ,  H04N19/122 ,  H04N19/129 ,  H04N19/136 ,  H04N19/61 ,  H04N19/159 ,  H04N19/593 ,  H04N19/625 ,  H04N19/124

CPC classification number: H04N19/129 ,  H04N19/119 ,  H04N19/122 ,  H04N19/124 ,  H04N19/136 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/593 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70

Abstract: A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.

公开(公告)号：US09497465B2

公开(公告)日：2016-11-15

申请号：US14406438

申请日：2013-06-25

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Hui Yong Kim ,  Sung Chang Lim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim ,  Gwang Hoon Park ,  Kyung Yong Kim

IPC: G06K9/36 ,  H04N19/119 ,  H04N19/176 ,  H04N19/129 ,  H04N19/136 ,  H04N19/61 ,  H04N19/159 ,  H04N19/70 ,  H04N19/122

CPC classification number: H04N19/129 ,  H04N19/119 ,  H04N19/122 ,  H04N19/124 ,  H04N19/136 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/593 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70

Abstract: A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.

Abstract translation: 公开了一种用于对图像进行编码/解码的方法和装置。 用于编码图像的方法包括以下步骤：根据当前块是否是变换跳过块，导出当前块的残差信号的扫描类型; 以及将所述扫描类型应用于所述当前块的残差信号，其中，所述变换跳过块是未应用所述当前块的变换的块，并且基于指示当前块的变换是否为 应用。

公开(公告)号：US20150172658A1

公开(公告)日：2015-06-18

申请号：US14406438

申请日：2013-06-25

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE ,  UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY

Inventor： Hui Yong Kim ,  Sung Chang Lim ,  Jin Ho Lee ,  Jin Soo Choi ,  Jin Woong Kim ,  Gwang Hoon Park ,  Kyung Yong Kim

IPC: H04N19/119 ,  H04N19/136 ,  H04N19/176 ,  H04N19/61

CPC classification number: H04N19/129 ,  H04N19/119 ,  H04N19/122 ,  H04N19/124 ,  H04N19/136 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/593 ,  H04N19/61 ,  H04N19/625 ,  H04N19/70

Abstract: A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.

Abstract translation: 公开了一种用于对图像进行编码/解码的方法和装置。 用于编码图像的方法包括以下步骤：根据当前块是否是变换跳过块，导出当前块的残差信号的扫描类型; 以及将所述扫描类型应用于所述当前块的残差信号，其中，所述变换跳过块是未应用所述当前块的变换的块，并且基于指示当前块的变换是否为 应用。