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公开(公告)号：US11310514B2
公开(公告)日：2022-04-19
申请号：US15538853
申请日：2014-12-30
发明人： Dae-sung Cho , Chan-yul Kim , Jeong-hoon Park , Pil-kyu Park , Kwang-pyo Choi , Dai-woong Choi , Woong-il Choi
IPC分类号： H04N19/167 , H04N19/169 , H04N19/103 , H04N19/59 , H04N19/124 , H04N19/13 , H04N19/176 , H04N19/182 , H04N19/61 , H04N19/132 , H04N19/156 , H04N19/436 , H04N19/46 , H04N7/01
摘要： Encoding an image using a non-encoding region of the image, a block-based encoding region of the image, and a pixel-based encoding region of the image.
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公开(公告)号：US10986356B2
公开(公告)日：2021-04-20
申请号：US16750615
申请日：2020-01-23
发明人： Jae-hwan Kim , Young-o Park , Jeong-hoon Park , Jong-seok Lee , Sun-young Jeon , Kwang-pyo Choi
IPC分类号： H04N19/33 , H04N19/184 , H04N19/14 , H04N19/50 , H04N19/80
摘要： Provided are an image compressing method including determining a compressed image by performing downsampling using a deep neural network (DNN) on an image; determining a prediction signal by performing prediction based on the compressed image; determining a residual signal based on the compressed image and the prediction signal; and generating a bitstream comprising information about the residual signal, wherein the DNN has a network structure that is predetermined according to training of a downsampling process using information generated in an upsampling process, and an image compressing device for performing the image compressing method. Also, provided are an image reconstructing method of reconstructing a compressed image by using a DNN for upsampling, the compressed image having been compressed by the image compressing method, and an image reconstructing device for performing the image reconstructing method.
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公开(公告)号：US10356421B2
公开(公告)日：2019-07-16
申请号：US15727074
申请日：2017-10-06
发明人： Elena Alshina , Alexander Alshin , Jeong-hoon Park
IPC分类号： H04N19/14 , H04N19/103 , H04N19/186 , H04N19/13 , H04N19/82 , H04N19/91 , H04N19/463 , H04N19/86
摘要： The present disclosure relates to signaling of sample adaptive offset (SAO) parameters determined to minimize an error between an original image and a reconstructed image in video encoding and decoding operations. An SAO decoding method includes obtaining context-encoded leftward SAO merge information and context-encoded upward SAO merge information from a bitstream of a largest coding unit (MCU); obtaining SAO on/off information context-encoded with respect to each color component, from the bitstream; if the SAO on/off information indicates to perform SAO operation, obtaining absolute offset value information for each SAO category bypass-encoded with respect to each color component, from the bitstream; and obtaining one of band position information and edge class information bypass-encoded with respect to each color component, from the bitstream.
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公开(公告)号：US10218984B2
公开(公告)日：2019-02-26
申请号：US15959694
申请日：2018-04-23
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
摘要： Provided are methods and apparatuses for encoding and decoding an image. 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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公开(公告)号：US10116947B2
公开(公告)日：2018-10-30
申请号：US14413154
申请日：2013-07-08
发明人： Byeong-doo Choi , Jae-hyun Kim , Jeong-hoon Park
IPC分类号： H04N19/169 , H04N19/187 , H04N19/46 , H04N19/176 , H04N21/2343 , H04N21/236 , H04N19/597 , H04N19/70 , H04N19/30
摘要： A multilayer video encoding method includes encoding a multilayer video, generating network adaptive layer (NAL) units for data units included in the encoded multilayer video, and adding scalable extension type information, for a scalable extension of the multilayer video, to a video parameter set (VPS) NAL unit among the NAL units, the VPS NAL unit including VPS information that is information commonly applied to the multilayer video.
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6.发明授权公开(公告)号：US09918063B2
公开(公告)日：2018-03-13
申请号：US14522131
申请日：2014-10-23
发明人： Byeong-doo Choi , Jae-hyun Kim , Jeong-hoon Park
IPC分类号： H04N19/159 , H04N19/503 , H04N13/00 , H04N19/597 , H04N19/46 , H04N19/105 , H04N19/172 , H04N19/96 , H04N19/136
CPC分类号： H04N13/10 , H04N19/105 , H04N19/136 , H04N19/172 , H04N19/46 , H04N19/597 , H04N19/96
摘要： Provided are methods and apparatuses for encoding and decoding a multiview video. The method of decoding the multiview video includes obtaining a data unit including encoding information of texture pictures and depth map pictures of a multiview image related to a same point of time, obtaining, from the data unit, view information of pictures that are encoded and are included in the data unit, type information indicating a type of each of the pictures from among the texture pictures and the depth map pictures, and reference flag information indicating whether each of the pictures is previously inter-layer predicted by referring to a texture picture of the same point of time or to a depth map picture of the same point of time, determining an encoding order of the pictures, based on the obtained information, and decoding the texture pictures and depth map pictures based on the determined encoding order.
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7.发明授权公开(公告)号：US09681127B2
公开(公告)日：2017-06-13
申请号：US14514892
申请日：2014-10-15
发明人： Seung-soo Jeong , Tammy Lee , Jae-hyun Kim , Chan-yul Kim , Jeong-hoon Park
IPC分类号： H04N19/42 , H04N19/436 , H04N19/70 , H04N19/44 , H04N19/174
CPC分类号： H04N19/436 , H04N19/174 , H04N19/44 , H04N19/70
摘要： Provided are video encoding and decoding methods and apparatuses for parallel processing. The video decoding method includes obtaining a parallel processing syntax indicating a parallel processing type that is applied to a second data unit of a lower level from a first data unit header of an upper level, obtaining a parallel processing flag indicating whether the parallel processing type is applied to the second data unit from a second data unit header, and determining whether the parallel processing type is applied to the second data unit based on the obtained parallel processing flag.
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8.发明授权Parameter update method for entropy coding and decoding of conversion coefficient level, and entropy coding device and entropy decoding device of conversion coefficient level using same 有权用于熵编码和转换系数级解码的参数更新方法，以及使用相同的转换系数级别的熵编码装置和熵解码装置公开(公告)号：US09554155B2
公开(公告)日：2017-01-24
申请号：US14645560
申请日：2015-03-12
发明人： Chan-yul Kim , Jae-hyun Kim , Jeong-hoon Park
IPC分类号： H04N19/60 , H04N19/70 , H04N19/196 , H04N19/122 , H04N19/463 , H04N19/18 , H04N19/91 , H04N19/44 , H04N19/136 , H04N19/13 , H04N19/96 , H04N19/157 , H03M7/40
CPC分类号： H04N19/13 , H03M7/4018 , H03M7/4075 , H04N19/115 , H04N19/122 , H04N19/136 , H04N19/139 , H04N19/157 , H04N19/18 , H04N19/184 , H04N19/196 , H04N19/44 , H04N19/463 , H04N19/60 , H04N19/70 , H04N19/91 , H04N19/96
摘要： An video decoding apparatus including a parser which obtains bit strings corresponding to current transformation coefficient level information by arithmetic decoding a bitstream based on a context model; a parameter determiner which determines a current binarization parameter by updating or maintaining a previous binarization parameter based on a comparison of a threshold and a size of a previous transformation coefficient; a syntax element restorer which obtains the current transformation coefficient level information by performing de-binarization of the bit strings using the determined current binarization parameter and generates a size of a current transformation coefficient using the current transformation coefficient level information, wherein the current binarization parameter has a value equal to or smaller than a predetermined value.
摘要翻译： 一种视频解码装置，包括解析器，其通过基于上下文模型对位流进行算术解码来获得与当前变换系数电平信息相对应的位串; 参数确定器，其基于阈值和先前变换系数的大小的比较，通过更新或维持先前的二值化参数来确定当前的二值化参数; 语法元素恢复器，其通过使用所确定的当前二值化参数执行比特串的二值化来获得当前变换系数级别信息，并且使用当前变换系数级别信息生成当前变换系数的大小，其中，当前二值化参数具有 等于或小于预定值的值。
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9.发明授权Parameter update method for entropy coding and decoding of conversion coefficient level, and entropy coding device and entropy decoding device of conversion coefficient level using same 有权用于熵编码和转换系数级解码的参数更新方法，以及使用相同的转换系数级别的熵编码装置和熵解码装置公开(公告)号：US09277233B1
公开(公告)日：2016-03-01
申请号：US14603171
申请日：2015-01-22
发明人： Chan-yul Kim , Jae-hyun Kim , Jeong-hoon Park
IPC分类号： H04N19/196 , H04N19/122 , H04N19/18 , H04N19/60 , H04N19/70 , H04N19/91 , H04N19/136
CPC分类号： H04N19/13 , H03M7/4018 , H03M7/4075 , H04N19/115 , H04N19/122 , H04N19/136 , H04N19/139 , H04N19/157 , H04N19/18 , H04N19/184 , H04N19/196 , H04N19/44 , H04N19/463 , H04N19/60 , H04N19/70 , H04N19/91 , H04N19/96
摘要： Methods and apparatuses for decoding and encoding video are provided. A decoding apparatus includes a parser, a parameter determiner, and a syntax element restorer for obtaining current transformation coefficient level information by performing de-binarization of bit strings using a current binarization parameter, and generating a size of a current transformation coefficient using the current transformation coefficient level information.
摘要翻译： 提供了解码和编码视频的方法和装置。 解码装置包括解析器，参数确定器和语法元素恢复器，用于通过使用当前二进制化参数执行位串的去二进制来获得当前变换系数电平信息，并且使用当前变换生成当前变换系数的大小 系数级信息。
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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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