公开(公告)号：US09363528B2

公开(公告)日：2016-06-07

申请号：US14553664

申请日：2014-11-25

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hae-Chul Choi ,  Se Yoon Jeong ,  Sukhee Cho ,  Hui Yong Kim ,  Jinho Lee ,  Hahyun Lee ,  Sung-Chang Lim ,  Jongho Kim ,  Jin Soo Choi ,  Jin Woo Hong ,  Jin Woong Kim

IPC: H04N11/02 ,  H04N19/513 ,  H04N19/52

CPC classification number: H04N19/52 ,  H04N19/172 ,  H04N19/176 ,  H04N19/513

Abstract: Provided is an image encoding/decoding apparatus and method. The image encoding apparatus may include a motion vector prediction unit to perform a prediction with respect to an arbitrary motion vector of a current block within an image, using at least one of vector information of a motion vector corresponding to an adjacent block and vector information of a previous motion vector of the current block, and a differential determination unit to determine differential information of a motion vector of the current block based on the motion vector predicted in the motion vector prediction unit and an actual motion vector of the current block.

公开(公告)号：US20150358620A1

公开(公告)日：2015-12-10

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: H04N19/129 ,  H04N19/13 ,  H04N19/18 ,  H04N19/159

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。

公开(公告)号：US09154784B2

公开(公告)日：2015-10-06

申请号：US13975213

申请日：2013-08-23

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: H04N7/26 ,  H04N19/159 ,  H04N19/176 ,  H04N19/129 ,  H04N19/61 ,  H04N19/11 ,  H04N19/103 ,  H04N19/136

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。

公开(公告)号：US20130343452A1

公开(公告)日：2013-12-26

申请号：US13975213

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.