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公开(公告)号：US20150023413A1
公开(公告)日：2015-01-22
申请号：US14383257
申请日：2012-12-27
Inventor： Soon heung Jung , Dong San Jun , Youn Hee Kim , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/172 , H04N19/119 , H04N19/124
CPC classification number: H04N19/176 , H04N19/124 , H04N19/146
Abstract: A method of controlling a video bit rate includes splitting the current frame into a plurality of first sub frames, deriving a sub frame goal bit rate for each of the plurality of first sub frames, and deriving a QP value for each of the plurality of first sub frames on the basis of the derived sub frame goal bit rate. According to the method, video coding efficiency may be enhanced.
Abstract translation: 一种控制视频比特率的方法包括将当前帧分成多个第一子帧，为多个第一子帧中的每一个导出子帧目标比特率，并且为多个第一子帧中的每个子帧生成QP值 基于派生子帧目标比特率的子帧。 根据该方法，可以提高视频编码效率。
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82.发明授权Apparatus for coding or decoding intra image based on line information of reference image block 有权基于参考图像块的线信息对帧内图像进行编码或解码的装置公开(公告)号：US08929445B2
公开(公告)日：2015-01-06
申请号：US14182995
申请日：2014-02-18
Inventor： Se Yoon Jeong , Jin Soo Choi , Donghyung Kim , Won-Sik Cheong , Kyung Ae Moon , Jin Woo Hong
IPC: H04N7/12 , H04N19/11 , H04N19/51 , H04N19/583 , H04N19/176 , H04N19/61 , H04N19/136 , H04N19/182 , H04N19/593
CPC classification number: H04N19/50 , H04N19/11 , H04N19/136 , H04N19/176 , H04N19/182 , H04N19/51 , H04N19/513 , H04N19/593 , H04N19/61
Abstract: An apparatus for coding an image is provided to effectively code the image. The apparatus for coding the image includes an input image segmentation unit to segment an input image into a plurality of image blocks including a first image block and a second image block. The apparatus also includes a waveform information generation unit to select a plurality of reference pixels from among pixels included in the first image block, generate first waveform information about the first image block based on a pixel value difference between the selected plurality of reference pixels, and generate second waveform information about the second image block based on a pixel value difference between the pixels included in the second image block. The apparatus also includes a coding unit to code an image included in the second image block based on the first waveform information and the second waveform information.
Abstract translation: 提供一种用于编码图像的装置以有效地对图像进行编码。 用于编码图像的装置包括：输入图像分割单元，用于将输入图像分割成包括第一图像块和第二图像块的多个图像块。 该装置还包括波形信息生成单元，用于从包括在第一图像块中的像素中选择多个参考像素，基于所选择的多个参考像素之间的像素值差产生关于第一图像块的第一波形信息，以及 基于包括在第二图像块中的像素之间的像素值差产生关于第二图像块的第二波形信息。 该装置还包括编码单元，用于基于第一波形信息和第二波形信息对包括在第二图像块中的图像进行编码。
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公开(公告)号：US20140362906A1
公开(公告)日：2014-12-11
申请号：US14372278
申请日：2013-01-18
Inventor： Hui Yong Kim , Jin Ho Lee , Sung Chang Lim , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/51 , H04N19/583 , H04N19/182 , H04N19/159 , H04N19/105
CPC classification number: H04N19/51 , H04N19/105 , H04N19/182 , H04N19/196 , H04N19/513 , H04N19/52 , H04N19/593 , H04N19/82
Abstract: A method for decoding an image according to the present invention comprises the steps of: restoring a residual block by performing inverse quantization and inverse transformation for the entropy-decoded residual block; generating a prediction block by performing intra prediction for a current block; and restoring an image by adding the restored residual block to the prediction block, wherein the step of generating the prediction block further comprises a step for generating a final prediction value of a pixel to be predicted, on the basis of a first prediction value of the pixel to be predicted, which is included in the current block, and of a fmal correction value that is calculated by performing an arithmetic right shift by a binary digit I for a two's complement integer representation with respect to an initial correction value of the pixel to be predicted. The operational complexity during image encoding/decoding can be reduced.
Abstract translation: 根据本发明的用于解码图像的方法包括以下步骤：通过对熵解码的残余块执行逆量化和逆变换来恢复残差块; 通过对当前块执行帧内预测来生成预测块; 以及通过将所述恢复的残差块加到所述预测块中来恢复图像，其中，所述生成所述预测块的步骤还包括根据所述预测块的第一预测值生成要预测的像素的最终预测值的步骤 包含在当前块中的要预测的像素，以及通过对二进制补码整数表示相对于像素的初始校正值执行二进制数字I的算术右移而计算出的伪校正值， 被预测。 可以减少图像编码/解码期间的操作复杂度。
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公开(公告)号：US20140341284A1
公开(公告)日：2014-11-20
申请号：US14353615
申请日：2012-11-08
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: H04N19/503 , H04N19/593
CPC classification number: H04N19/159 , H04N19/105 , H04N19/117 , H04N19/122 , H04N19/124 , H04N19/13 , H04N19/15 , H04N19/176 , H04N19/436 , H04N19/503 , H04N19/51 , H04N19/52 , H04N19/593 , H04N19/61
Abstract: The present invention relates to a method and device for sharing a candidate list. A method of generating a merging candidate list for a predictive block may include: producing, on the basis of a coding block including a predictive block on which a parallel merging process is performed, at least one of a spatial merging candidate and a temporal merging candidate of the predictive block; and generating a single merging candidate list for the coding block on the basis of the produced merging candidate. Thus, it is possible to increase processing speeds for coding and decoding by performing inter-picture prediction in parallel on a plurality of predictive blocks.
Abstract translation: 本发明涉及共享候选列表的方法和装置。 一种生成用于预测块的合并候选列表的方法可以包括：基于包括执行并行合并处理的预测块的编码块，生成空间合并候选和时间合并候选中的至少一个 的预测块; 以及基于所生成的合并候选来生成编码块的单个合并候选列表。 因此，通过在多个预测块上并行执行画面间预测，可以提高编码和解码的处理速度。
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公开(公告)号：US20140334543A1
公开(公告)日：2014-11-13
申请号：US14365663
申请日：2013-01-30
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY
Inventor： Jin Ho Lee , Hui Yong Kim , Sung Chang Lim , Jin Soo Choi , Jin woong Kim , Jae Gon Kim , Hae Chul Choi , Sang Yong Lee
IPC: H04N19/11 , H04N19/593 , H04N19/44 , H04N19/176
CPC classification number: H04N19/157 , H04N19/11 , H04N19/176 , H04N19/198 , H04N19/593 , H04N19/70
Abstract: Disclosed are an intra prediction mode encoding and decoding method, an image decoding device, and an image encoding device. The intra prediction mode decoding method comprises the steps of: deriving most probable modes (MPMs) from surrounding prediction units adjacent to a current prediction unit; and deriving an intra prediction mode of the current prediction unit on the basis of an MPM flag indicating whether an MPM having the same prediction mode as the intra prediction mode of the current prediction unit exists among the derived MPMs.
Abstract translation: 公开了帧内预测模式编码和解码方法，图像解码装置和图像编码装置。 帧内预测模式解码方法包括以下步骤：从与当前预测单元相邻的周围预测单元导出最可能模式（MPM）; 并且基于指示在导出的MPM中是否存在与当前预测单元的帧内预测模式具有相同预测模式的MPM的MPM标志来导出当前预测单元的帧内预测模式。
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Patent Agency Ranking
公开(公告)号：US20140286434A1
公开(公告)日：2014-09-25
申请号：US14350267
申请日：2012-10-05
Inventor： Ha Hyun Lee , Jung Won Kang , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/33 , H04N19/80 , H04N19/187
Abstract: The present invention relates to an image-encoding method, to an image-decoding method, and to an apparatus using same. The image-encoding method according to the present invention comprises the following steps: determining the location of a corresponding sample in a reference layer; restoring a sample of a reference unit in the reference layer, specified by the corresponding sample, so as to generate a reference sample signal; and encoding a differential signal between the sample signal of the current unit of an enhancement layer and the reference sample signal.
Abstract translation: 本发明涉及一种图像编码方法，一种图像解码方法以及使用该方法的装置。 根据本发明的图像编码方法包括以下步骤：确定参考层中相应样本的位置; 恢复由相应样本指定的参考层中的参考单元的样本，以产生参考采样信号; 并且对增强层的当前单元的采样信号和参考采样信号之间的差分信号进行编码。
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87.发明申请公开(公告)号：US20140177722A1
公开(公告)日：2014-06-26
申请号：US14159953
申请日：2014-01-21
Inventor： Se Yoon Jeong , Jin Soo Choi , Donghyung Kim , Won-Sik Cheong , Kyung Ae Moon , Jin Woo Hong
IPC: H04N19/583 , H04N19/51
CPC classification number: H04N19/50 , H04N19/11 , H04N19/136 , H04N19/176 , H04N19/182 , H04N19/51 , H04N19/513 , H04N19/593 , H04N19/61
Abstract: An apparatus for coding an image is provided to effectively code the image. The apparatus for coding the image includes an input image segmentation unit to segment an input image into a plurality of image blocks including a first image block and a second image block. The apparatus also includes a waveform information generation unit to select a plurality of reference pixels from among pixels included in the first image block, generate first waveform information about the first image block based on a pixel value difference between the selected plurality of reference pixels, and generate second waveform information about the second image block based on a pixel value difference between the pixels included in the second image block. The apparatus also includes a coding unit to code an image included in the second image block based on the first waveform information and the second waveform information.
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88.发明授权公开(公告)号：US12273510B2
公开(公告)日：2025-04-08
申请号：US18241393
申请日：2023-09-01
Inventor： Dong San Jun , Jin Ho Lee , Jung Won Kang , Hyun Suk Ko , Sung Chang Lim , Ha Hyun Lee , Seung Hyun Cho , Hui Yong Kim , Jin Soo Choi
IPC: H04N19/11 , H04N19/176 , H04N19/593
Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method of the present invention comprises decoding first information indicating whether a maximum of N intra prediction modes are used or a maximum of M intra prediction modes are used for an intra prediction for a current block, in which the M is smaller than the N, deriving an intra prediction mode of the current block, inverse-mapping the derived intra prediction mode on a corresponding intra prediction mode among the maximum N intra prediction modes when the decoded first information indicates that the maximum M intra prediction modes are used for the intra prediction for the current block, and generating an intra prediction block by performing an intra prediction for the current block, based on the inverse-mapped intra prediction mode.
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公开(公告)号：US12267510B2
公开(公告)日：2025-04-01
申请号：US18417415
申请日：2024-01-19
Inventor： Jung Won Kang , Ha Hyun Lee , Jin Soo Choi , Jin Woong Kim
IPC: H04N19/187 , H04N19/124 , H04N19/13 , H04N19/169 , H04N19/182 , H04N19/30 , H04N19/31 , H04N19/33 , H04N19/46 , H04N19/503 , H04N19/52 , H04N19/593 , H04N19/61 , H04N19/70 , H04N19/80 , H04N19/91
Abstract: The present invention relates to an image information decoding method. The decoding method includes receiving a bit stream including a Network Abstraction Layer (NAL) unit that includes information related to encoded image, and parsing a NAL unit header of the NAL unit. The NAL unit header may not include 1 bit flag information that represents whether a picture is a non-reference picture or a reference picture in the entire bit stream during encoding.
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公开(公告)号：US12231678B2
公开(公告)日：2025-02-18
申请号：US18413605
申请日：2024-01-16
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: H04N19/577 , H04N19/109 , H04N19/176 , H04N19/503 , H04N19/513 , H04N19/52 , H04N19/593 , H04N19/107 , H04N19/119 , H04N19/61 , 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.
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