公开(公告)号：US20130266068A1

公开(公告)日：2013-10-10

申请号：US13910639

申请日：2013-06-05

Applicant: Kwangwoon University Research Institute for Industry Cooperation ,  Electronics and Telecommunications Research Institute

Inventor： Jeong-Il Seo ,  Wook-Joong Kim ,  Kyu-Heon Kim ,  Kyeong-Ok Kang ,  Jin-Woo Hong ,  Yung-Lyul Lee ,  Ki-Hun Han ,  Jae-Ho Hur ,  Dong-Gyu Sim ,  Seoung-Jun Oh

IPC: H04N7/26

CPC classification number: H04N19/61 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176

Abstract: Provided is an apparatus and method for encoding/decoding a moving picture based on adaptive scanning. The moving picture apparatus and method can increase a compression rate based on adaptive scanning by performing intra prediction onto blocks of a predetermined size, and scanning coefficients acquired from Discrete Cosine Transform (DCT) of a residue signal and quantization differently according to the intra prediction mode. The moving picture encoding apparatus includes: a mode selector for selecting and outputting a prediction mode; a predictor for predicting pixel values of pixels to be encoded of an input video based on the prediction mode to thereby output a residue signal block; a transform/quantization unit for performing DCT onto the residue signal block and quantizing the transformed residue signal block; and an encoder for adaptively scanning and encoding the quantized residue signal block based on the prediction mode.

公开(公告)号：US11425390B2

公开(公告)日：2022-08-23

申请号：US16964878

申请日：2019-01-25

Applicant: Electronics and Telecommunications Research Institute ,  INDUSTRY-ACADEMIA COOPERATION GROUP OF SEJONG UNIVERSITY ,  INDUSTRY-UNIVERSITY COOPERATION FOUNDATION KOREA AEROSPACE UNIVERSITY

Inventor： Sung-Chang Lim ,  Jung-Won Kang ,  Hyunsuk Ko ,  Jin-Ho Lee ,  Ha-Hyun Lee ,  Dong-San Jun ,  Hui-Yong Kim ,  Yung-Lyul Lee ,  Nam-Uk Kim ,  Jae-Gon Kim

IPC: H04N19/105 ,  H04N19/176 ,  H04N19/119 ,  H04N19/137 ,  H04N19/159

Abstract: Disclosed herein are a decoding method and apparatus and an encoding method and apparatus that perform inter-prediction using a motion vector predictor. For a candidate block in a col picture, a scaled motion vector is generated based on a motion vector of the candidate block. When the scaled motion vector indicates a target block, a motion vector predictor of the target block is generated based on the motion vector of the candidate block. The motion vector predictor is used to derive the motion vector of the target block in a specific inter-prediction mode such as a merge mode and an AMVP mode.

公开(公告)号：US11363260B2

公开(公告)日：2022-06-14

申请号：US16983218

申请日：2020-08-03

Applicant: Electronics and Telecommunications Research Institute ,  Industry-University Cooperation Foundation Korea Aerospace University ,  Industry-Academia Cooperation Group of Sejong University

Inventor： Jin-Ho Lee ,  Jae-Gon Kim ,  Jung-Won Kang ,  Do-Hyeon Park ,  Yung-Lyul Lee ,  Ha-Hyun Lee ,  Sung-Chang Lim ,  Hui-Yong Kim ,  Ji-Hoon Do ,  Yong-Uk Yoon

IPC: H04N19/11 ,  H04N19/159 ,  H04N19/176 ,  H04N19/119 ,  H04N19/105

Abstract: Disclosed herein are a decoding method and apparatus and an encoding method and apparatus for deriving an intra-prediction mode. An intra-prediction mode may be derived using a method for deriving an intra-prediction mode based on a neighbor block of the target block, a method for deriving an intra-prediction mode using signaling of the intra-prediction mode of the target block, or a method for deriving an adaptive intra-prediction mode based on the type of a target slice. An MPM list may be used to derive the intra-prediction mode, and a temporal neighbor block or the like may be used to configure the MPM list.

公开(公告)号：US10575016B2

公开(公告)日：2020-02-25

申请号：US16216551

申请日：2018-12-11

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jeong-Il Seo ,  Wook-Joong Kim ,  Kyu-Heon Kim ,  Kyeong-Ok Kang ,  Jin-Woo Hong ,  Yung-Lyul Lee ,  Ki-Hun Han ,  Jae-Ho Hur ,  Dong-Gyu Sim ,  Seoung-Jun Oh

IPC: H04N19/61 ,  H04N19/159 ,  H04N19/176 ,  H04N19/129

Abstract: Provided is an apparatus and method for encoding/decoding a moving picture based on adaptive scanning. The moving picture apparatus and method can increase a compression rate based on adaptive scanning by performing intra prediction onto blocks of a predetermined size, and scanning coefficients acquired from Discrete Cosine Transform (DCT) of a residue signal and quantization differently according to the intra prediction mode. The moving picture encoding apparatus includes: a mode selector for selecting and outputting a prediction mode; a predictor for predicting pixel values of pixels to be encoded of an input video based on the prediction mode to thereby output a residue signal block; a transform/quantization unit for performing DCT onto the residue signal block and quantizing the transformed residue signal block; and an encoder for adaptively scanning and encoding the quantized residue signal block based on the prediction mode.

公开(公告)号：US09838714B2

公开(公告)日：2017-12-05

申请号：US14750202

申请日：2015-06-25

Applicant: Electronics and Telecommunications Research Institute ,  Kwangwoon University Research Institute for Industry Cooperation ,  INDUSTRY ACADEMY COOPERATION FOUNDATION OF SEJONG UNIVERSITY

Inventor： Jeong-Il Seo ,  Wook-Joong Kim ,  Kyu-Heon Kim ,  Kyeong-Ok Kang ,  Jin-Woo Hong ,  Yung-Lyul Lee ,  Ki-Hun Han ,  Jae-Ho Hur ,  Dong-Gyu Sim ,  Seoung-Jun Oh

IPC: H04N19/61 ,  H04N19/159 ,  H04N19/176 ,  H04N19/129

CPC classification number: H04N19/61 ,  H04N19/129 ,  H04N19/159 ,  H04N19/176

Abstract: Provided is an apparatus and method for encoding/decoding a moving picture based on adaptive scanning. The moving picture apparatus and method can increase a compression rate based on adaptive scanning by performing intra prediction onto blocks of a predetermined size, and scanning coefficients acquired from Discrete Cosine Transform (DCT) of a residue signal and quantization differently according to the intra prediction mode. The moving picture encoding apparatus includes: a mode selector for selecting and outputting a prediction mode; a predictor for predicting pixel values of pixels to be encoded of an input video based on the prediction mode to thereby output a residue signal block; a transform/quantization unit for performing DCT onto the residue signal block and quantizing the transformed residue signal block; and an encoder for adaptively scanning and encoding the quantized residue signal block based on the prediction mode.

公开(公告)号：US09154786B2

公开(公告)日：2015-10-06

申请号：US13729556

申请日：2012-12-28

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Dae-Hee Kim ,  Nam-Ho Hur ,  Soo-In Lee ,  Yung-Lyul Lee ,  Jong-Ryul Kim ,  Suk-Hee Cho

IPC: H04N19/50 ,  H04N19/597 ,  H04N19/52 ,  H04N19/61 ,  H04N19/60 ,  H04N19/114 ,  H04N19/136 ,  H04N19/527 ,  H04N19/94 ,  H04N19/58

CPC classification number: H04N19/50 ,  H04N19/114 ,  H04N19/136 ,  H04N19/52 ,  H04N19/527 ,  H04N19/58 ,  H04N19/597 ,  H04N19/60 ,  H04N19/61 ,  H04N19/94

Abstract: Provided are an apparatus and method for predictive coding/decoding for improving a compression rate of multiview video using one or two additional reference frame buffers. The predictive encoding apparatus includes: a multiview reference picture providing unit for providing a reference picture for a predictive encoding according to temporal and spatial GOP structure information; a prediction unit for creating a vector by predicting which part of the reference picture inputted from the multiview reference picture providing unit is referred by a picture to currently encode; a transforming and quantizing unit for obtaining a difference signal between the predicted signal inputted from the prediction unit and a picture signal to currently encode, transforming the obtained difference signal, quantizing the transformed signal, and compressing the quantized signal; and an entropy encoding unit for encoding the quantized signal and the vectors according to a predetermined scheme and outputting the encoded signal.

Abstract translation: 提供了一种用于使用一个或两个附加参考帧缓冲器来改善多视图视频的压缩率的预测编码/解码的装置和方法。 预测编码装置包括：多视图参考图像提供单元，用于根据时间和空间GOP结构信息提供用于预测编码的参考图像; 一个预测单元，用于通过预测由多视点参考图像提供单元输入的参考图像的哪个部分被一个图片参照当前编码来创建一个矢量; 变换和量化单元，用于获得从预测单元输入的预测信号与图像信号之间的差分信号，以当前编码，变换所获得的差分信号，量化变换的信号，以及压缩量化信号; 以及熵编码单元，用于根据预定方案对量化信号和向量进行编码，并输出编码信号。

公开(公告)号：US20140037000A1

公开(公告)日：2014-02-06

申请号：US13975251

申请日：2013-08-23

Applicant: Electronics and Telecommunications Research Institute ,  Industry-Academia Cooperation Group of Sejong University ,  Kwangwoon University Research Institute for Industry Cooperation

Inventor： Se-Yoon Jeong ,  Hae-Chul Choi ,  Jeong-Il Seo ,  Seung-Kwon Beack ,  In-Seon Jang ,  Jae-Gon Kim ,  Kyung-Ae Moon ,  Dae-Young Jang ,  Jin-Woo Hong ,  Jin-Woong Kim ,  Yung-Lyul Lee ,  Dong-Gyu Sim ,  Seoung-Jun Oh ,  Chang-Beom Ahn ,  Dae-Yeon Kim ,  Dong-Kyun Kim

IPC: H04N7/26

CPC classification number: H04N19/159 ,  H04N19/103 ,  H04N19/11 ,  H04N19/129 ,  H04N19/13 ,  H04N19/136 ,  H04N19/176 ,  H04N19/18 ,  H04N19/182 ,  H04N19/61 ,  H04N19/91

Abstract: The present invention discloses an encoding apparatus using a Discrete Cosine Transform (DCT) scanning, which includes a mode selection means for selecting an optimal mode for intra prediction; an intra prediction means for performing intra prediction onto video inputted based on the mode selected in the mode selection means; a DCT and quantization means for performing DCT and quantization onto residual coefficients of a block outputted from the intra prediction means; and an entropy encoding means for performing entropy encoding onto DCT coefficients acquired from the DCT and quantization by using a scanning mode decided based on pixel similarity of the residual coefficients.

Abstract translation: 本发明公开了一种使用离散余弦变换（DCT）扫描的编码装置，其包括用于选择用于帧内预测的最佳模式的模式选择装置; 帧内预测装置，用于根据在模式选择装置中选择的模式对输入的视频执行帧内预测; DCT和量化装置，用于对从帧内预测装置输出的块的残余系数进行DCT和量化; 以及熵编码装置，用于通过使用基于残差系数的像素相似度确定的扫描模式，对从DCT获取的DCT系数和量化执行熵编码。