公开(公告)号：US20160241853A1

公开(公告)日：2016-08-18

申请号：US15137189

申请日：2016-04-25

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Sung Chang LIM ,  Hui Yong KIM ,  Se Yoon JEONG ,  Jong Ho KIM ,  Ha Hyun LEE ,  Jin Ho LEE ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: H04N19/124 ,  H04N19/46 ,  H04N19/186 ,  H04N19/122

CPC classification number: H04N19/124 ,  H04N19/105 ,  H04N19/117 ,  H04N19/122 ,  H04N19/13 ,  H04N19/15 ,  H04N19/157 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/43 ,  H04N19/46 ,  H04N19/463 ,  H04N19/61

Abstract: Disclosed are a method for determining a color difference component quantization parameter and a device using the method. Method for decoding an image can comprise the steps of: decoding a color difference component quantization parameter offset on the basis of size information of a transform unit; and calculating a color difference component quantization parameter index on the basis of the decoded color difference component quantization parameter offset. Therefore, the present invention enables effective quantization by applying different color difference component quantization parameters according to the size of the transform unit when executing the quantization.

公开(公告)号：US20160182905A1

公开(公告)日：2016-06-23

申请号：US15055150

申请日：2016-02-26

Applicant: Electronics and Telecommunications Research Institute

Inventor： Ha Hyun LEE ,  Hui Yong KIM ,  Sung Chang LIM ,  Jong Ho KIM ,  Jin Ho LEE ,  Se Yoon JEONG ,  Suk Hee CHO ,  Jin Soo CHOI ,  Jin Woong KIM ,  Chie Teuk AHN

IPC: H04N19/11 ,  H04N19/176 ,  H04N19/513 ,  H04N19/137

CPC classification number: H04N19/107 ,  H04N19/105 ,  H04N19/109 ,  H04N19/11 ,  H04N19/13 ,  H04N19/137 ,  H04N19/157 ,  H04N19/159 ,  H04N19/176 ,  H04N19/1887 ,  H04N19/196 ,  H04N19/50 ,  H04N19/52 ,  H04N19/521 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70 ,  H04N19/91

Abstract: An intra prediction method according to the present invention comprises the following steps: deriving neighboring prediction mode information from a left neighboring prediction mode and a top neighboring prediction mode; deriving an intra prediction mode for a target unit to be decoded, using the derived neighboring prediction mode information; and performing intra prediction for the target unit to be decoded, based on the intra prediction mode. According to the present invention, video encoding/decoding efficiency may be improved.

公开(公告)号：US20150078453A1

公开(公告)日：2015-03-19

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: H04N19/513

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

Abstract translation: 提供了一种图像编码/解码装置和方法。 图像编码装置可以包括运动矢量预测单元，使用与相邻块对应的运动矢量的矢量信息和矢量信息中的至少一个来执行关于图像内的当前块的任意运动矢量的预测， 当前块的先前运动矢量，以及差分确定单元，用于基于在当前块中预测的运动矢量来确定当前块的运动矢量的差分信息