公开(公告)号：US20170164002A1

公开(公告)日：2017-06-08

申请号：US15433890

申请日：2017-02-15

Applicant: Electronics and Telecommunications Research Instit

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

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/117

CPC classification number: H04N19/593 ,  H04N19/105 ,  H04N19/117 ,  H04N19/136 ,  H04N19/147 ,  H04N19/157 ,  H04N19/176 ,  H04N19/182 ,  H04N19/44 ,  H04N19/82

Abstract: Provided is a method and apparatus for performing intra-prediction using an adaptive filter. The method for performing intra-prediction includes the steps of: determining whether or not to apply a first filter for a reference pixel value on the basis of information of a neighboring block of a current block; applying the first filter for the reference pixel value when it is determined to apply the first filter; performing intra-prediction on the current block on the basis of the reference pixel value; determining whether or not to apply a second filter for a prediction value according to each prediction mode of the current block, which is predicted by the intra-prediction performance on the basis of the information of the neighboring block; and applying the second filter for the prediction value according to each prediction mode of the current block when it is determined to apply the second filter.

公开(公告)号：US20210014494A1

公开(公告)日：2021-01-14

申请号：US17027866

申请日：2020-09-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTIT

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

IPC: H04N19/124 ,  H04N19/196 ,  H04N19/463 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119 ,  H04N19/14 ,  H04N19/33

Abstract: A method for decoding an image, the method including decoding base block size information on a size of a base block from a bitstream, decoding residual presence information of a decoding object unit from the bitstream, the residual presence information indicating whether the decoding object unit has residual signal or not, when the residual presence information indicates that the decoding object unit has the residual signal, decoding a residual quantization parameter of the decoding object unit from the bitstream, determining a quantization parameter of the decoding object unit based on the residual quantization parameter of the decoding object unit, and performing inverse quantization for the decoding object unit based on the quantization parameter.

公开(公告)号：US20160255350A1

公开(公告)日：2016-09-01

申请号：US15028570

申请日：2014-10-13

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTIT UTE

Inventor： Jung Won KANG ,  Jin Ho LEE ,  Ha Hyun LEE ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: H04N19/174 ,  H04N19/13 ,  H04N19/187

CPC classification number: H04N19/436 ,  H04N19/30

Abstract: Disclosed are a method and an apparatus for video decoding that support a plurality of layers. The method for video decoding includes acquiring information indicating whether tile information exists and acquiring the tile information based on the information indicating whether tile information exists.

Abstract translation: 公开了一种支持多个层的视频解码方法和装置。 视频解码方法包括获取指示瓦片信息是否存在的信息，并且基于指示瓦片信息是否存在的信息来获取瓦片信息。