公开(公告)号：US20180160113A1

公开(公告)日：2018-06-07

申请号：US15579869

申请日：2016-06-07

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Je Chang JEONG ,  Ki Baek KIM ,  Ung HWANG

IPC: H04N19/105 ,  H04N19/119 ,  H04N19/176 ,  H04N19/59 ,  H04N19/109 ,  H04N19/51 ,  H04N19/117

CPC classification number: H04N19/105 ,  H04N19/109 ,  H04N19/117 ,  H04N19/119 ,  H04N19/176 ,  H04N19/51 ,  H04N19/577 ,  H04N19/59 ,  H04N19/593

Abstract: A method and a device for encoding and decoding intra prediction are disclosed. An image decoding method for performing intra prediction comprises the steps of: receiving a bitstream including data on prediction modes of a current block and a block adjacent to the current block; extracting the data from the received bitstream so as to confirm the prediction mode of the adjacent block; determining whether a boundary pixel within the adjacent block can be used as a reference pixel for the current block in consideration of the prediction mode of the adjacent block; obtaining the reference pixel of the current block according to the determined result; generating a prediction block predicted in the frame on the basis of the obtained reference pixel; and decoding the current block by using the generated prediction block.

公开(公告)号：US20160345025A1

公开(公告)日：2016-11-24

申请号：US15210978

申请日：2016-07-15

Applicant: Intellectual Discovery Co., Ltd.

Inventor： Je Chang JEONG ,  Ki Baek KIM ,  Dong Jin JUNG

IPC: H04N19/80 ,  H04N19/44 ,  H04N19/593 ,  H04N19/126 ,  H04N19/176

CPC classification number: H04N19/80 ,  H04N19/117 ,  H04N19/126 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/44 ,  H04N19/45 ,  H04N19/50 ,  H04N19/59 ,  H04N19/593 ,  H04N19/82 ,  H04N19/86

Abstract: Disclosed is a prediction method adopting in-loop filtering. According to the present invention, a prediction method for encoding and decoding video comprises the following steps: generating a residual block of the current block through an inverse quantization and inverse transform; generating a prediction block of the current block through an intra-prediction; performing in-loop filtering on the current block in which the residual block and the prediction block are combined; and storing the current block, on which the in-loop filtering is performed, in a frame buffer for an intra-prediction of the next block to be encoded. As described above, prediction is performed using an in-loop filter during processes for encoding and decoding video, thereby improving the accuracy of prediction and reducing errors in prediction, thus improving the efficiency of video compression and reducing the amount of data to be transmitted.

公开(公告)号：US20200021801A1

公开(公告)日：2020-01-16

申请号：US16579217

申请日：2019-09-23

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Je Chang JEONG ,  Ki Baek KIM ,  Ung HWANG

IPC: H04N19/105 ,  H04N19/51 ,  H04N19/117 ,  H04N19/109 ,  H04N19/59 ,  H04N19/119 ,  H04N19/176

Abstract: A method and a device for encoding and decoding intra prediction are disclosed. An image decoding method for performing intra prediction comprises the steps of: receiving a bitstream including data on prediction modes of a current block and a block adjacent to the current block; extracting the data from the received bitstream so as to confirm the prediction mode of the adjacent block; determining whether a boundary pixel within the adjacent block can be used as a reference pixel for the current block in consideration of the prediction mode of the adjacent block; obtaining the reference pixel of the current block according to the determined result; generating a prediction block predicted in the frame on the basis of the obtained reference pixel; and decoding the current block by using the generated prediction block.

公开(公告)号：US20160330485A1

公开(公告)日：2016-11-10

申请号：US15210967

申请日：2016-07-15

Applicant: Intellectual Discovery Co., Ltd.

Inventor： Je Chang JEONG ,  Ki Baek KIM ,  Dong Jin JUNG

IPC: H04N19/80 ,  H04N19/186 ,  H04N19/182 ,  H04N19/126 ,  H04N19/593

CPC classification number: H04N19/80 ,  H04N19/117 ,  H04N19/126 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/44 ,  H04N19/45 ,  H04N19/50 ,  H04N19/59 ,  H04N19/593 ,  H04N19/82 ,  H04N19/86

Abstract: Disclosed is a prediction method adopting in-loop filtering. According to the present invention, a prediction method for encoding and decoding video comprises the following steps: generating a residual block of the current block through an inverse quantization and inverse transform; generating a prediction block of the current block through an intra-prediction; performing in-loop filtering on the current block in which the residual block and the prediction block are combined; and storing the current block, on which the in-loop filtering is performed, in a frame buffer for an intra-prediction of the next block to be encoded. As described above, prediction is performed using an in-loop filter during processes for encoding and decoding video, thereby improving the accuracy of prediction and reducing errors in prediction, thus improving the efficiency of video compression and reducing the amount of data to be transmitted.

公开(公告)号：US20190158883A1

公开(公告)日：2019-05-23

申请号：US16261390

申请日：2019-01-29

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Je Chang JEONG ,  Ki Baek KIM ,  Dong Jin JUNG

IPC: H04N19/80 ,  H04N19/50 ,  H04N19/86 ,  H04N19/44 ,  H04N19/82 ,  H04N19/593 ,  H04N19/176 ,  H04N19/186 ,  H04N19/182 ,  H04N19/126

Abstract: Disclosed is a prediction method adopting in-loop filtering. According to the present invention, a prediction method for encoding and decoding video comprises the following steps: generating a residual block of the current block through an inverse quantization and inverse transform; generating a prediction block of the current block through an intra-prediction; performing in-loop filtering on the current block in which the residual block and the prediction block are combined; and storing the current block, on which the in-loop filtering is performed, in a frame buffer for an intra-prediction of the next block to be encoded. As described above, prediction is performed using an in-loop filter during processes for encoding and decoding video, thereby improving the accuracy of prediction and reducing errors in prediction, thus improving the efficiency of video compression and reducing the amount of data to be transmitted.

公开(公告)号：US20180176596A1

公开(公告)日：2018-06-21

申请号：US15579903

申请日：2016-06-07

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Je Chang JEONG ,  Ki Baek KIM ,  Yong Hoon KIM ,  Jung Hyun LEE

IPC: H04N19/593 ,  H04N19/82

CPC classification number: H04N19/593 ,  H04N19/109 ,  H04N19/159 ,  H04N19/176 ,  H04N19/523 ,  H04N19/70 ,  H04N19/82

Abstract: Disclosed are an image encoding and decoding method and an image decoding device for selecting a prediction candidate from reference blocks of a reference picture, which includes a current picture, and using the selected prediction candidate so as to derive motion information on a current block during image encoding and decoding. The image encoding and decoding method includes the steps of: configuring a spatial motion vector candidate; determining whether the reference picture of the current block is present within the current picture; and adding a spatial motion vector candidate in other block of the current picture encoded before the current block, when the reference picture of the current block is present within the current picture.

公开(公告)号：US20150139319A1

公开(公告)日：2015-05-21

申请号：US14609472

申请日：2015-01-30

Applicant: Intellectual Discovery Co., Ltd.

Inventor： Je Chang JEONG ,  Ki Baek KIM ,  Dong Jin JUNG

IPC: H04N19/80 ,  H04N19/44 ,  H04N19/86 ,  H04N19/50

CPC classification number: H04N19/80 ,  H04N19/117 ,  H04N19/126 ,  H04N19/176 ,  H04N19/182 ,  H04N19/186 ,  H04N19/44 ,  H04N19/45 ,  H04N19/50 ,  H04N19/59 ,  H04N19/593 ,  H04N19/82 ,  H04N19/86

Abstract: Disclosed is a prediction method adopting in-loop filtering. According to the present invention, a prediction method for encoding and decoding video comprises the following steps: generating a residual block of the current block through an inverse quantization and inverse transform; generating a prediction block of the current block through an intra-prediction; performing in-loop filtering on the current block in which the residual block and the prediction block are combined; and storing the current block, on which the in-loop filtering is performed, in a frame buffer for an intra-prediction of the next block to be encoded. As described above, prediction is performed using an in-loop filter during processes for encoding and decoding video, thereby improving the accuracy of prediction and reducing errors in prediction, thus improving the efficiency of video compression and reducing the amount of data to be transmitted.

Abstract translation: 公开了采用环路滤波的预测方法。 根据本发明，用于对视频进行编码和解码的预测方法包括以下步骤：通过逆量化和逆变换产生当前块的残留块; 通过帧内预测生成当前块的预测块; 对剩余块和预测块组合的当前块进行环路滤波; 并将在其上进行循环滤波的当前块存储在用于要编码的下一个块的帧内预测的帧缓冲器中。 如上所述，在对视频进行编码和解码的处理期间使用环路滤波器进行预测，从而提高预测的精度并减少预测中的错误，从而提高视频压缩的效率并减少要发送的数据量。

公开(公告)号：US20200374563A1

公开(公告)日：2020-11-26

申请号：US16991312

申请日：2020-08-12

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Je Chang JEONG ,  Ki Baek KIM ,  Dong Jin JUNG

IPC: H04N19/80 ,  H04N19/176 ,  H04N19/593 ,  H04N19/82 ,  H04N19/50 ,  H04N19/44 ,  H04N19/86 ,  H04N19/126 ,  H04N19/182 ,  H04N19/186

Abstract: Disclosed is a prediction method adopting in-loop filtering. According to the present invention, a prediction method for encoding and decoding video comprises the following steps: generating a residual block of the current block through an inverse quantization and inverse transform; generating a prediction block of the current block through an intra-prediction; performing in-loop filtering on the current block in which the residual block and the prediction block are combined; and storing the current block, on which the in-loop filtering is performed, in a frame buffer for an intra-prediction of the next block to be encoded. As described above, prediction is performed using an in-loop filter during processes for encoding and decoding video, thereby improving the accuracy of prediction and reducing errors in prediction, thus improving the efficiency of video compression and reducing the amount of data to be transmitted.

公开(公告)号：US20180176601A1

公开(公告)日：2018-06-21

申请号：US15579909

申请日：2016-06-13

Applicant: INTELLECTUAL DISCOVERY CO., LTD.

Inventor： Je Chang JEONG ,  Ki Baek KIM

IPC: H04N19/82 ,  H04N19/124 ,  H04N19/91 ,  H04N19/107 ,  H04N19/184

CPC classification number: H04N19/82 ,  H04N19/107 ,  H04N19/117 ,  H04N19/124 ,  H04N19/137 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/50 ,  H04N19/51 ,  H04N19/577 ,  H04N19/58 ,  H04N19/593 ,  H04N19/60 ,  H04N19/70 ,  H04N19/91

Abstract: Disclosed is an encoding/decoding method and apparatus related to adaptive deblocking filtering. There is provided an image decoding method performing adaptive filtering in inter-prediction, the method including: reconstructing, from a bitstream, an image signal including a reference block on which block matching is performed in inter-prediction of a current block to be encoded; obtaining, from the bitstream, a flag indicating whether the reference block exists within a current picture where the current block is positioned; reconstructing the current block by using the reference block; adaptively applying an in-loop filter for the reconstructed current block based on the obtained flag; and storing the current block to which the in-loop filter is or is not applied in a decoded picture buffer (DPB).