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公开(公告)号：US20200154142A1
公开(公告)日：2020-05-14
申请号：US16744384
申请日：2020-01-16
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 , H04N19/129 , H04N19/176 , H04N19/159
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.
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公开(公告)号：US09819942B2
公开(公告)日：2017-11-14
申请号：US14823186
申请日：2015-08-11
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Research Institute for Industry Cooperation , Industry-Academia Cooperation Group of Sejong University
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: G06F21/00 , H04L29/06 , H04N19/159 , H04N19/91 , H04N19/182 , H04N19/13 , H04N19/18 , H04N19/176 , H04N19/129 , H04N19/61 , H04N19/11 , H04N19/103 , H04N19/136 , H04N7/26 , H04N7/34 , H04N7/50
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.
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公开(公告)号：US09736484B2
公开(公告)日：2017-08-15
申请号：US14823273
申请日：2015-08-11
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Research Institute for Industry Cooperation , Industry-Academia Cooperation Group of Sejong University
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: G06F21/00 , H04L29/06 , H04N19/159 , H04N19/91 , H04N19/182 , H04N19/13 , H04N19/18 , H04N19/176 , H04N19/129 , H04N19/61 , H04N19/11 , H04N19/103 , H04N19/136 , H04N7/50 , H04N19/44
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.
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公开(公告)号：US12137248B2
公开(公告)日：2024-11-05
申请号：US18340381
申请日：2023-06-23
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 , H04N19/129 , 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.
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公开(公告)号：US11956426B2
公开(公告)日：2024-04-09
申请号：US17739365
申请日：2022-05-09
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 , H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176
CPC classification number: H04N19/11 , H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176
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.
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Patent Agency Ranking
公开(公告)号：US11949881B2
公开(公告)日：2024-04-02
申请号：US17219964
申请日：2021-04-01
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Research Institute for Industry Cooperation , Industry-Academia Cooperation Group of Sejong University
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: H04N19/159 , H04N19/103 , H04N19/11 , H04N19/129 , H04N19/13 , H04N19/136 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/61 , H04N19/91
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.
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公开(公告)号：US11943447B2
公开(公告)日：2024-03-26
申请号：US17864226
申请日：2022-07-13
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 , H04N19/119 , H04N19/137 , H04N19/159 , H04N19/176
CPC classification number: H04N19/137 , H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176
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.
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公开(公告)号：US11330274B2
公开(公告)日：2022-05-10
申请号：US16438785
申请日：2019-06-12
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Research Institute for Industry Cooperation , Industry-Academia Cooperation Group of Sejong University
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: H04N19/51 , H04N19/645 , H04N19/159 , H04N19/91 , H04N19/182 , H04N19/13 , H04N19/18 , H04N19/176 , H04N19/129 , H04N19/61 , H04N19/11 , H04N19/103 , H04N19/136
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.
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公开(公告)号：US10187660B2
公开(公告)日：2019-01-22
申请号：US15794568
申请日：2017-10-26
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
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.
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公开(公告)号：US11729423B2
公开(公告)日：2023-08-15
申请号：US17446091
申请日：2021-08-26
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.
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