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公开(公告)号：US20220021873A1
公开(公告)日：2022-01-20
申请号：US17474517
申请日：2021-09-14
Inventor： Sung Chang LIM , Jong Ho KIM , Hae Chul CHOI , Hui Yong KIM , Ha Hyun LEE , Jin Ho LEE , Se Yoon JEONG , Suk Hee CHO , Jin Soo CHOI , Jin Woo HONG , Jin Woong KIM
IPC: H04N19/105 , H04N19/503 , H04N19/176 , H04N19/46 , H04N19/593 , H04N19/11 , H04N19/157
Abstract: Provided are an image encoding method and device. When carrying out image encoding for a block within a slice, at least one block in a restored block of the slice is set as a reference block. When this is done, the encoding parameters of the reference block are distinguished, and the block to be encoded is encoded adaptively based on the encoding parameters.
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72.发明申请公开(公告)号：US20210306622A1
公开(公告)日：2021-09-30
申请号：US17344161
申请日：2021-06-10
Applicant: Electronics and Telecommunications Research Institute , University-Industry Cooperation Group of Kyung Hee University
Inventor： Se Yoon JEONG , Hui Yong KIM , Sung Chang LIM , Jin Ho LEE , Ha Hyun LEE , Jong Ho KIM , Jin Soo CHOI , Jin Woong KIM , Chie Teuk AHN , Gwang Hoon PARK , Kyung Yong KIM , Han Soo LEE , Tae Ryong KIM
IPC: H04N19/10 , H04N19/105 , H04N19/136 , H04N19/196
Abstract: A method for coding image information includes generating prediction information by predicting information on a current coding unit, and determining whether the information on the current coding unit is the same as the prediction information. When the information on the current coding unit is the same as the prediction information, a flag indicating that the information on the current coding unit is the same as the prediction information is coded and transmitted. When the information on the current coding unit is not the same as the prediction information, a flag indicating that the information on the current coding unit is not the same as the prediction information and the information on the current coding unit are coded and transmitted. At the generating of the prediction information, the prediction information is generated by using the information on the coding unit neighboring to the current coding unit
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公开(公告)号：US20210218982A1
公开(公告)日：2021-07-15
申请号：US17214040
申请日：2021-03-26
Inventor： Sung Chang LIM , Hui Yong KIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/52
Abstract: A method for decoding an image according to the present invention comprises the steps of: decoding a residual block by quantizing and inverse transforming an entropy-decoded residual block; generating a prediction block via motion compensation; and decoding an image by adding the decoded residual block to the prediction block, wherein on the basis of the maximum number of motion vector candidates of the motion vector candidate list related to the prediction block, a motion vector candidate list is adjusted by adding a particular motion vector candidate or by discarding a portion from among the motion vector candidates, and in the prediction block generation step, a prediction motion vector of the prediction block is determined on the basis of the adjusted motion vector candidate list. Accordingly, the complexity of arithmetic operations is reduced during encoding/decoding of an image.
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公开(公告)号：US20200382788A1
公开(公告)日：2020-12-03
申请号：US16999252
申请日：2020-08-21
Applicant: Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Hui Yong KIM , Sung Chang LIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Gwang Hoon PARK , Kyung Yong KIM
IPC: H04N19/129 , H04N19/176 , H04N19/70 , H04N19/122 , H04N19/159 , H04N19/119 , H04N19/136 , H04N19/61 , H04N19/593 , H04N19/625 , H04N19/124 , H04N19/157 , H04N19/44
Abstract: A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.
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公开(公告)号：US20200382783A1
公开(公告)日：2020-12-03
申请号：US16997569
申请日：2020-08-19
Applicant: Electronics and Telecommunications Research Institute , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Hui Yong KIM , Sung Chang LIM , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM , Gwang Hoon PARK , Kyung Yong KIM
IPC: H04N19/129 , H04N19/176 , H04N19/70 , H04N19/122 , H04N19/159 , H04N19/119 , H04N19/136 , H04N19/61 , H04N19/593 , H04N19/625 , H04N19/124 , H04N19/157 , H04N19/44
Abstract: A method and a device for encoding/decoding images are disclosed. The method for encoding images comprises the steps of: deriving a scan type of a residual signal for a current block according to whether or not the current block is a transform skip block; and applying the scan type to the residual signal for the current block, wherein the transform skip block is a block to which transform for the current block is not applied and is specified on the basis of information indicating whether or not transform for the current block is to be applied.
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Patent Agency Ranking
公开(公告)号：US20200288155A1
公开(公告)日：2020-09-10
申请号：US16883293
申请日：2020-05-26
Inventor： Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/33 , H04N19/597 , H04N19/30
Abstract: Disclosed is technology associated with video encoding and decoding having a structure including one or more layers (quality, spatial, and view) and technology associated with a method that predicts an higher layer signal by using one or more reference layers in encoding and decoding an higher layer. In more detail, an interlayer prediction is capable of being performed by considering a characteristic of each layer by separating a spatial and quality reference layer list constituted by spatial and quality layers to be referred at the same view as a target layer and a view reference layer list constituted by the same spatial and quality layers as a target layer in encoding and decoding encoding and decoding pictures of an higher layer in encoding and decoding encoded and decoded pictures of the higher layer to improve encoding and decoding efficiency.
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公开(公告)号：US20200236352A1
公开(公告)日：2020-07-23
申请号：US16840547
申请日：2020-04-06
Inventor： Jin Ho LEE , Hui Yong KIM , Sung Chang LIM , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/11 , H04N19/91 , H04N19/44 , H04N19/184 , H04N19/176 , H04N19/107
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.
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公开(公告)号：US20200092580A1
公开(公告)日：2020-03-19
申请号：US16693118
申请日：2019-11-22
Inventor： Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/52 , H04N19/593 , H04N19/30 , H04N19/597 , H04N19/50 , H04N19/503 , H04N19/70 , H04N19/33 , H04N19/31 , H04N19/34 , H04N19/36 , H04N19/187
Abstract: According to the present invention, an image decoding method for supporting a plurality of layers includes the steps of: receiving and parsing layer-dependent information for reference layers that can be referenced by a current layer in an entire bitstream, when interlayer prediction is used in decoding a current picture in the current layer, receiving and parsing layer information for a reference layer referenced by the current picture among the reference layers; and decoding the current picture on the basis of the layer information.
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公开(公告)号：US20200045333A1
公开(公告)日：2020-02-06
申请号：US16598846
申请日：2019-10-10
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: H04N19/52 , H04N19/513 , H04N19/172 , H04N19/176
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.
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80.发明申请公开(公告)号：US20190335185A1
公开(公告)日：2019-10-31
申请号：US16509299
申请日：2019-07-11
Inventor： Ha Hyun LEE , Jin Ho LEE , Jung Won KANG , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/31 , H04N19/157 , H04N19/463 , H04N19/172 , H04N19/70 , H04N19/184 , H04N19/51 , H04N19/187 , H04N19/44 , H04N19/105
Abstract: The present invention relates to a method for predicting an inter-layer of an image having a plurality of layers including at least one temporal sub-layer. The method according to present invention comprises the steps of: acquiring information on a temporal sub-layer for inter-layer prediction; inducing a reference picture used for predicting an inter-layer of a current picture on the basis of the information on the temporal sub-layer; and predicting the inter-layer of the current picture on the basis of the reference picture.
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