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公开(公告)号：US20160173909A1
公开(公告)日：2016-06-16
申请号：US15049854
申请日：2016-02-22
Applicant: Electronics and Telecommunications Research Institute , Kwangwoon University Industry-Academic Collaboration Foundation , University-Industry Cooperation Group of Kyung Hee University , Korea Advanced Institute of Science and Technology
Inventor： Sung-Chang LIM , Ha Hyun LEE , Hui Yong KIM , Se Yoon Jeong , Suk Hee CHO , Hae Chul CHOI , Jong Ho KIM , Jin Ho LEE , Jin Soo CHOI , Jin Woo HONG , Dong Gyu SIM , Seoung Jun OH , Gwang Hoon PARK , Mun Churl KIM , Neung Joo HWANG , Sea Nae PARK
IPC: H04N19/625 , H04N19/55 , H04N19/615 , H04N19/14 , H04N19/176 , H04N19/124 , H04N19/13 , H04N19/122 , H04N19/11 , H04N19/44 , H04N19/107 , H04N19/139 , H04N19/159 , H04N19/52 , H04N19/593 , H04N19/91 , H04N19/18 , H04N19/119
CPC classification number: H04N19/122 , H04N19/107 , H04N19/11 , H04N19/119 , H04N19/12 , H04N19/124 , H04N19/13 , H04N19/139 , H04N19/14 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/182 , H04N19/44 , H04N19/50 , H04N19/52 , H04N19/55 , H04N19/593 , H04N19/60 , H04N19/615 , H04N19/625 , H04N19/91
Abstract: Provided is a video encoding apparatus, including a signal separator to separate a differential image block into a first domain and a second domain, based on a boundary line included in the differential image block, the differential image block indicating a difference between an original image and a prediction image with respect to the original image, a transform encoder to perform a transform encoding with respect to the first domain using a discrete cosine transform (DCT), a quantization unit to quantize an output of the transform encoding unit in a frequency domain, a space domain quantization unit to quantize the second domain in a space domain, and an entropy encoder to perform an entropy encoding using outputs of the quantization unit and the space domain quantization unit.
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公开(公告)号：US20160150240A1
公开(公告)日：2016-05-26
申请号：US15011090
申请日：2016-01-29
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: H04N19/44 , H04N19/52 , H04N19/503
Abstract: An inter prediction method according to the present invention comprises the steps of: selecting candidate units from among reconstructed neighbor units; creating a candidate unit set with respect to units to be decoded, using the selected candidate units; determining a reference unit from among the candidate units which constitute the created candidate unit set; and performing inter prediction on the units to be decoded, using the determined reference unit. According to the present invention, image encoding/decoding efficiency can be improved.
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公开(公告)号：US20160029029A1
公开(公告)日：2016-01-28
申请号：US14782213
申请日：2014-04-03
Inventor： Ha Hyun LEE , Jung Won KANG , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/187 , H04N19/44 , H04N19/176
CPC classification number: H04N19/187 , H04N19/105 , H04N19/176 , H04N19/31 , H04N19/33 , H04N19/463 , H04N19/52 , H04N19/70
Abstract: Disclosed are a method and an apparatus for image encoding/decoding that support a plurality of layers. The method for image decoding that supports a plurality of layers includes decoding information of a first layer which a picture of a second layer including a current decoding target block refers to; mapping the information of the first layer to a picture size of the second layer, configuring a reference picture list for the picture of the second layer by adding the mapped information of the first layer and generating prediction samples of the current decoding target block by predicting the current decoding target block of the second layer based on the reference picture list, and the information of the first layer includes at least one of a sample value and motion information of the first layer picture.
Abstract translation: 公开了用于支持多个层的图像编码/解码的方法和装置。 支持多层的图像解码方法包括：包括当前解码对象块的第二层的图片参照的第一层的解码信息; 将第一层的信息映射到第二层的图像大小，通过添加第一层的映射信息并且通过预测第一层的映射信息来生成当前解码目标块的预测样本来配置第二层的图像的参考图片列表 基于参考图像列表的第二层的当前解码目标块，并且第一层的信息包括第一层图像的采样值和运动信息中的至少一个。
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274.发明申请公开(公告)号：US20150319453A1
公开(公告)日：2015-11-05
申请号：US14650184
申请日：2013-12-24
Inventor： Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/52 , H04N19/187 , H04N19/593
CPC classification number: H04N19/52 , H04N19/187 , H04N19/30 , H04N19/31 , H04N19/33 , H04N19/34 , H04N19/36 , H04N19/50 , H04N19/503 , H04N19/593 , H04N19/597 , H04N19/70
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.
Abstract translation: 根据本发明，用于支持多个层的图像解码方法包括以下步骤：接收和解析可以在整个比特流中由当前层参考的参考层的与层相关的信息; 当层间预测用于对当前图层中的当前图像进行解码时，接收和解析参考层中由当前图片参考的参考层的层信息; 并根据层信息解码当前画面。
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公开(公告)号：US20150016548A1
公开(公告)日：2015-01-15
申请号：US14326232
申请日：2014-07-08
Inventor： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Jin Soo CHOI , Jin Woong KIM
IPC: H04N19/82 , H04N19/117
CPC classification number: H04N19/117 , H04N19/105 , H04N19/124 , H04N19/13 , H04N19/14 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/30 , H04N19/51 , H04N19/61 , H04N19/80
Abstract: A video decoding method according to an embodiment of the present invention may include determining a type of a filter to be applied to a first-layer picture which a second-layer picture as a decoding target refers to; determining a filtering target of the first-layer picture to which the filter is applied; filtering the filtering target based on the type of the filter; and adding the filtered first-layer picture to a second-layer reference picture list. Accordingly, the video decoding method and an apparatus using the same may reduce a prediction error in an upper layer and enhance encoding efficiency.
Abstract translation: 根据本发明的实施例的视频解码方法可以包括确定要应用于作为解码目标的第二层图片参考的第一层图像的滤波器的类型; 确定应用所述滤波器的所述第一层图像的滤波目标; 基于过滤器的类型对过滤目标进行过滤; 并将滤波的第一层图像添加到第二层参考图片列表。 因此，视频解码方法及其使用装置可以减少上层的预测误差，提高编码效率。
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Patent Agency Ranking
276.发明申请公开(公告)号：US20250126246A1
公开(公告)日：2025-04-17
申请号：US18999634
申请日：2024-12-23
Inventor： Jung Won KANG , Sung Chang LIM , Hyun Suk KO , Ha Hyun LEE , Jin Ho LEE , Dong San JUN , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/105 , H04N19/119 , H04N19/159 , H04N19/176 , H04N19/186 , H04N19/70 , H04N19/96
Abstract: The present invention relates to an image encoding method and an image decoding method. The image decoding method includes partitioning a picture into a plurality of coding units, constructing a coding unit group including at least one coding unit of the plurality of coding units, obtaining coding information in units of one coding unit group, and decoding at least one coding unit of the plurality of coding units included in the coding unit group by using the obtained coding information.
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公开(公告)号：US20250119559A1
公开(公告)日：2025-04-10
申请号：US18981345
申请日：2024-12-13
Inventor： Sung Chang LIM , Jung Won KANG , Ha Hyun LEE , Jin Ho LEE , Dae Yeon KIM , Ju Ock LEE
IPC: H04N19/169 , H04N19/119 , H04N19/172 , H04N19/593 , H04N19/70
Abstract: An image encoding/decoding method and apparatus are disclosed. The method of decoding an image according to the present invention, comprises, obtaining a single stream including subpicture information of a plurality of subpictures; selecting a subpicture to be extracted from among the plurality of subpictures; determining the single stream as a stream to be extracted and obtaining a sub stream for the subpicture to be extracted from the stream to be extracted, by removing or using at least one piece of subpicture information included in the stream to be extracted.
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公开(公告)号：US20250097431A1
公开(公告)日：2025-03-20
申请号：US18910820
申请日：2024-10-09
Inventor： Dong San JUN , Jin Ho LEE , Jung Won KANG , Hyun Suk KO , Sung Chang LIM , Ha Hyun LEE , Seung Hyun CHO , Hui Yong KIM , Jin Soo CHOI
IPC: H04N19/159 , H04N19/105 , H04N19/126 , H04N19/13 , H04N19/176 , H04N19/50 , H04N19/593
Abstract: An image encoding/decoding method and apparatus for performing intra prediction are provided. An image decoding method of the present invention comprises deriving an intra prediction mode for a current block, selecting at least one reconstructed sample line neighboring to the current block, constructing a reference sample using at least one reconstructed sample included in the at least one reconstructed sample line, and performing intra prediction for the current block based on the intra prediction mode and the reference sample.
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公开(公告)号：US20250071264A1
公开(公告)日：2025-02-27
申请号：US18944404
申请日：2024-11-12
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 , H04N19/11 , H04N19/157 , H04N19/176 , H04N19/46 , H04N19/503 , H04N19/593
Abstract: Provided are an imaging 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 parameter.
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280.发明申请公开(公告)号：US20250055985A1
公开(公告)日：2025-02-13
申请号：US18930747
申请日：2024-10-29
Inventor： Jin Ho LEE , Jung Won KANG , Ha Hyun LEE , Sung Chang LIM , Hui Yong KIM
IPC: H04N19/11 , H04N19/105 , H04N19/117 , H04N19/176 , H04N19/593
Abstract: An image encoding/decoding method is disclosed. An image decoding method of the present invention may comprise deriving an intra-prediction mode of a current block by using an intra-prediction mode of a neighbor block adjacent to the current block, configuring a reference sample of the current block, and performing intra-prediction on the current block by using the intra-prediction mode and the reference sample, wherein when the intra-prediction mode of the neighbor block is unavailable, the intra-prediction mode of the neighbor block may be replaced with a planar mode.
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