公开(公告)号：US20200186800A1

公开(公告)日：2020-06-11

申请号：US16794054

申请日：2020-02-18

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

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 ,  H04N19/61 ,  H04N19/43 ,  H04N19/159 ,  H04N19/15 ,  H04N19/13 ,  H04N19/117 ,  H04N19/105 ,  H04N19/46 ,  H04N19/122 ,  H04N19/157 ,  H04N19/186 ,  H04N19/463

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：US20180359471A1

公开(公告)日：2018-12-13

申请号：US16105222

申请日：2018-08-20

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Jin Ho LEE ,  Hui Yong KIM ,  Sung Chang LIM ,  Jin Soo CHOI ,  Jin Woong KIM

IPC: H04N19/11 ,  H04N19/91 ,  H04N19/44 ,  H04N19/107 ,  H04N19/176 ,  H04N19/184

CPC classification number: H04N19/11 ,  H04N19/107 ,  H04N19/176 ,  H04N19/184 ,  H04N19/44 ,  H04N19/91

Abstract: An image decoding method, according to the present invention, includes the steps of: deriving an MPM candidate mode from neighboring blocks adjacent to a target block to be decoded; generating an MPM list using the MPM candidate mode derived from the neighboring blocks; and deriving an intra prediction mode for the target block to be decoded using the generated MPM list. According to the present invention, image compression efficiency can be improved.

公开(公告)号：US20210274181A1

公开(公告)日：2021-09-02

申请号：US17321728

申请日：2021-05-17

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

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 ,  H04N19/463 ,  H04N19/186 ,  H04N19/157 ,  H04N19/122 ,  H04N19/46 ,  H04N19/105 ,  H04N19/117 ,  H04N19/13 ,  H04N19/15 ,  H04N19/159 ,  H04N19/43 ,  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：US20210274180A1

公开(公告)日：2021-09-02

申请号：US17321715

申请日：2021-05-17

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

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 ,  H04N19/463 ,  H04N19/186 ,  H04N19/157 ,  H04N19/122 ,  H04N19/46 ,  H04N19/105 ,  H04N19/117 ,  H04N19/13 ,  H04N19/15 ,  H04N19/159 ,  H04N19/43 ,  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：US20210274179A1

公开(公告)日：2021-09-02

申请号：US17321704

申请日：2021-05-17

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

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 ,  H04N19/463 ,  H04N19/186 ,  H04N19/157 ,  H04N19/122 ,  H04N19/46 ,  H04N19/105 ,  H04N19/117 ,  H04N19/13 ,  H04N19/15 ,  H04N19/159 ,  H04N19/43 ,  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：US20180309992A1

公开(公告)日：2018-10-25

申请号：US16019131

申请日：2018-06-26

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

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 ,  H04N19/13 ,  H04N19/157 ,  H04N19/186

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.