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公开(公告)号：US11218695B2
公开(公告)日：2022-01-04
申请号：US16622139
申请日：2018-02-06
发明人： Young-o Park , Jae-hwan Kim , Jong-seok Lee , Sun-young Jeon , Jeong-hoon Park , Kwang-pyo Choi
IPC分类号： H04N19/117 , H04N19/105 , H04N19/65 , H04N19/82 , G06N20/00 , G06N3/08 , G06T9/00
摘要： Provided is in-loop filtering technology using a trained deep neural network (DNN) filter model. An image decoding method according to an embodiment includes receiving a bitstream of an encoded image, generating reconstructed data by reconstructing the encoded image, obtaining information about a content type of the encoded image from the bitstream, determining a deep neural network (DNN) filter model trained to perform in-loop filtering by using at least one computer, based on the information about the content type, and performing the in-loop filtering by applying the reconstructed data to the determined DNN filter model.
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公开(公告)号：US11095894B2
公开(公告)日：2021-08-17
申请号：US16627406
申请日：2018-02-06
发明人： Sun-young Jeon , Jae-hwan Kim , Young-o Park , Jeong-hoon Park , Jong-seok Lee , Kwang-pyo Choi
IPC分类号： H04N19/124 , H04N19/117 , H04N19/184 , H04N19/196 , H04N19/61 , H04N19/85 , G06N3/08
摘要： Provided is a method of encoding an image, the method including: determining a subjective quality of the image when the image is compressed; determining at least one degree of compression that changes the subjective quality and is from among degrees of compression indicating how much the image is compressed; and encoding the image by compressing a residual signal of the image, based on compression information according to the determined degree of compression, wherein the subjective quality is determined for each frame by using a Deep Neural Network (DNN). Provided are an image decoding method and an image decoding apparatus for performing the image decoding method for decoding an image by using information encoded according to an image encoding method.
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公开(公告)号：US09936197B2
公开(公告)日：2018-04-03
申请号：US14354721
申请日：2012-10-29
发明人： Young-o Park , Il-koo Kim , Chan-yul Kim , Kwang-pyo Choi
IPC分类号： H04N7/12 , H04N19/64 , H04N19/58 , H04N19/196 , H04N19/463
CPC分类号： H04N19/19 , H04N19/196 , H04N19/463 , H04N19/58
摘要： Provided are an inter prediction method and a motion compensation method. The inter prediction method includes: performing inter prediction on a current image by using a long-term reference image stored in a decoded picture buffer; determining residual data and a motion vector of the current image generated via the inter prediction; and determining least significant bit (LSB) information as a long-term reference index indicating the long-term reference image by dividing picture order count (POC) information of the long-term reference image into most significant bit (MSB) information and the LSB information.
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公开(公告)号：US09769483B2
公开(公告)日：2017-09-19
申请号：US15492123
申请日：2017-04-20
发明人： Young-o Park , Chan-yul Kim , Kwang-pyo Choi , Jeong-hoon Park
IPC分类号： H04N19/00 , H04N19/152 , H04N19/44 , H04N19/70
CPC分类号： H04N19/152 , H04N19/44 , H04N19/70
摘要： Provided are methods and apparatuses for encoding and decoding an image. The method of encoding includes: determining a maximum size of a buffer to decode each image frame by a decoder, a number of image frames to be reordered, and latency information of an image frame having a largest difference between an encoding order and a display order from among image frames that form an image sequence, based on an encoding order the image frames that form the image sequence, an encoding order of reference frames referred to by the image frames, a display order of the image frames, and a display order of the reference frames; and adding, to a mandatory sequence parameter set, a first syntax indicating the maximum size of the buffer, a second syntax indicating the number of image frames to be reordered, and a third syntax indicating the latency information.
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5.发明申请INTER PREDICTION METHOD IN WHICH REFERENCE PICTURE LISTS CAN BE CHANGED AND APPARATUS FOR THE SAME 审中-公开可以改变参考图表的INTER预测方法及其设备公开(公告)号：US20150071351A1
公开(公告)日：2015-03-12
申请号：US14394539
申请日：2013-04-12
发明人： Tammy Lee , Young-o Park
IPC分类号： H04N19/50 , H04N19/174
CPC分类号： H04N19/50 , H04N19/174 , H04N19/463 , H04N19/573 , H04N19/577 , H04N19/61 , H04N19/70 , H04N19/96
摘要： An inter prediction method includes determining whether a restriction condition is provided which restricts an identity of reference picture lists to be used for slices of a same slice type among slices included in a same picture; determining a modification possibility of reference picture lists determined for a same slice among the slices of the same slice type; and determining reference picture lists for blocks in an inter mode that belong to the same slice based on the determining of whether the restriction condition is provided and the determining of the modification possibility of the reference picture lists.
摘要翻译： 帧间预测方法包括：确定是否提供限制条件，该限制条件限制在同一图像中包含的切片中使用相同切片类型的切片的参考图像列表的标识; 确定对于相同切片类型的切片中的相同切片确定的参考图像列表的修改可能性; 以及基于确定是否提供限制条件以及确定参考图片列表的修改可能性来确定属于相同片段的帧间模式的块的参考图片列表。
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6.发明申请SCALABLE VIDEO-ENCODING METHOD AND APPARATUS, AND SCALABLE VIDEO-DECODING METHOD AND APPARATUS 审中-公开可扩展的视频编码方法和装置，以及可扩展的视频解码方法和装置公开(公告)号：US20150023432A1
公开(公告)日：2015-01-22
申请号：US14384992
申请日：2013-03-12
发明人： Byeong-doo Choi , Il-koo Kim , Chan-yul Kim , Young-o Park , Jeong-hoon Park , Tammy Lee
摘要： Disclosed are a scalable video encoding method and apparatus and a scalable video decoding method and apparatus. The scalable video encoding method adds, into a bitstream, table index information representing one of a plurality of scalable extension type information tables in which available combinations of a plurality of scalable extension types are specified and layer index information representing the scalable extension type of the encoded video among combinations of a plurality of scalable extension types included in a scalable extension type information table.
摘要翻译： 公开了一种可分级视频编码方法和装置以及可伸缩视频解码方法和装置。 可分级视频编码方法将表示多个可伸缩扩展类型信息表中的一个的表索引信息添加到比特流中，其中指定了多个可伸缩扩展类型的可用组合，以及表示编码的可扩展扩展类型的可扩展扩展类型的层索引信息 包括在可伸缩扩展类型信息表中的多个可伸缩扩展类型的组合之间的视频。
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公开(公告)号：US20240080449A1
公开(公告)日：2024-03-07
申请号：US18506669
申请日：2023-11-10
发明人： Il-koo KIM , Young-o Park
IPC分类号： H04N19/136 , H04N19/124 , H04N19/172 , H04N19/463 , H04N19/58 , H04N19/70
CPC分类号： H04N19/136 , H04N19/124 , H04N19/172 , H04N19/463 , H04N19/58 , H04N19/70 , H04N19/174
摘要： A method of determining a reference picture set (RPS), which is a set of reference pictures used in predictive decoding of a current picture that is to be decoded includes: obtaining a flag indicating whether the RPS is determined based on POC values of the current picture and a previous picture or whether the RPS is determined based on an index of a reference RPS, which is an identification value of the reference RPS that is one of pre-defined RPSs and is referred to in determining the RPS, and a delta RPS that is a difference value between a POC vale of a reference picture included in the reference RPS and a POC value of a reference picture included in the RPS; and determining the RPS according to a value of the flag.
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公开(公告)号：US11252423B2
公开(公告)日：2022-02-15
申请号：US16939704
申请日：2020-07-27
发明人： Byeong-doo Choi , Young-o Park , Il-Koo Kim , Jae-Hyun Kim , Jeong-Hoon Park
摘要： Provided are a video encoding method and apparatus having temporal scalability, and a video decoding method and apparatus having temporal scalability. The video encoding method includes: splitting pictures included in a picture sequence into temporal sub-layers; classifying, as a first temporal layer access picture or a second temporal layer access picture, a temporal layer access picture based on whether a picture encoded after the temporal layer access picture is capable of referring to a picture encoded before the temporal layer access picture; and adding, to transmission unit data including the temporal layer access picture, type syntax information for identifying the first temporal layer access picture and the second temporal layer access picture, wherein the picture encoded after the temporal layer access picture belongs to a same temporal sub-layer as the temporal layer access picture or belongs to an upper temporal sub-layer to the temporal layer access picture.
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公开(公告)号：US11006120B2
公开(公告)日：2021-05-11
申请号：US16799362
申请日：2020-02-24
发明人： Il-koo Kim , Young-o Park
IPC分类号： H04N19/58 , H04N19/136 , H04N19/70 , H04N19/463 , H04N19/124 , H04N19/172 , H04N19/174 , H04N19/86
摘要： A method of determining a reference picture set (RPS), which is a set of reference pictures used in predictive decoding of a current picture that is to be decoded includes: obtaining a flag indicating whether the RPS is determined based on picture order count (POC) values of the current picture and a previous picture or whether the RPS is determined based on an index of a reference RPS, which is an identification value of the reference RPS that is one of pre-defined RPSs and is referred to in determining the RPS, and a delta RPS that is a difference value between a POC vale of a reference picture included in the reference RPS and a POC value of a reference picture included in the RPS; and determining the RPS according to a value of the flag.
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公开(公告)号：US10764593B2
公开(公告)日：2020-09-01
申请号：US14412828
申请日：2013-07-03
发明人： Byeong-doo Choi , Young-o Park , Il-koo Kim , Jae-hyun Kim , Jeong-hoon Park
摘要： Provided are a video encoding method and apparatus having temporal scalability, and a video decoding method and apparatus having temporal scalability. The video encoding method includes: splitting pictures included in a picture sequence into temporal sub-layers; classifying, as a first temporal layer access picture or a second temporal layer access picture, a temporal layer access picture based on whether a picture encoded after the temporal layer access picture is capable of referring to a picture encoded before the temporal layer access picture; and adding, to transmission unit data including the temporal layer access picture, type syntax information for identifying the first temporal layer access picture and the second temporal layer access picture, wherein the picture encoded after the temporal layer access picture belongs to a same temporal sub-layer as the temporal layer access picture or belongs to an upper temporal sub-layer to the temporal layer access picture.
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