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21.发明申请METHOD AND APPARATUS FOR MOTION VECTOR DETERMINATION IN VIDEO ENCODING OR DECODING 审中-公开用于视频编码或解码的运动矢量确定的方法和装置公开(公告)号：US20140307783A1
公开(公告)日：2014-10-16
申请号：US14357043
申请日：2012-11-08
发明人： Il-koo Kim , Young-o Park
IPC分类号： H04N19/51 , H04N19/124 , H04N19/61
CPC分类号： H04N19/56 , H04N19/124 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/573 , H04N19/577 , H04N19/58 , H04N19/61
摘要： Provided are motion vector determining method and apparatus for determining a motion vector via motion vector prediction.The motion vector determining method involves determining a candidate motion vector list comprising motion vectors of a plurality of candidate blocks referred so as to predict a motion vector of a current block, when a reference image of a first candidate block from among the plurality of candidate blocks is different from a reference image of the current block, determining whether or not to use a motion vector of the first candidate block from the candidate motion vector list, based on whether each of the reference image of the current block and the reference image of the first candidate block is a short-term reference image or a long-term reference image, and determining the motion vector of the current block by using a candidate motion vector selected from among the motion vectors comprised in the candidate motion vector list.
摘要翻译： 提供了用于通过运动矢量预测来确定运动矢量的运动矢量确定方法和装置。 运动矢量确定方法包括确定包括多个候选块的运动矢量的候选运动矢量列表，所述多个候选块被参考用于预测当前块的运动矢量，当来自多个候选块中的第一候选块的参考图像 与当前块的参考图像不同，基于当前块的参考图像和当前块的参考图像中的每一个，确定是否使用来自候选运动矢量列表的第一候选块的运动矢量 第一候选块是短期参考图像或长期参考图像，并且通过使用从候选运动矢量列表中包括的运动矢量中选择的候选运动矢量来确定当前块的运动矢量。
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22.发明申请METHOD FOR DETERMINING QUANTIZATION PARAMETERS ON BASIS OF SIZE OF CONVERSION BLOCK, AND DEVICE FOR SAME 审中-公开基于转换块尺寸的量化参数的确定方法及其设备公开(公告)号：US20140286406A1
公开(公告)日：2014-09-25
申请号：US14357041
申请日：2012-11-08
发明人： Chan-yul Kim , Kwang-pyo Choi , Young-o Park
IPC分类号： H04N19/126 , H04N19/196
CPC分类号： H04N19/176 , H04N19/122 , H04N19/124 , H04N19/134 , H04N19/46
摘要： Provided are a method and apparatus for determining quantization parameter for a quantization and an inverse quantization performed during a video encoding and decoding. The quantization parameter determination method includes determining transformation units of at least one size included in a coding unit; determining a default quantization parameter of the coding unit; reducing a quantization parameter of a transformation unit that is greater than a predetermined size, to be less than the default quantization parameter; and increasing a quantization parameter of a transformation unit that is less than a predetermined size, to be greater than the default quantization parameter.
摘要翻译： 提供了一种用于确定在视频编码和解码期间执行的量化和逆量化的量化参数的方法和装置。 量化参数确定方法包括：确定包括在编码单元中的至少一个大小的变换单位; 确定编码单元的默认量化参数; 将大于预定大小的变换单元的量化参数减小到小于默认量化参数; 以及将小于预定大小的变换单元的量化参数增加到大于默认量化参数。
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公开(公告)号：US11490091B2
公开(公告)日：2022-11-01
申请号：US17231763
申请日：2021-04-15
发明人： Il-koo Kim , Young-o Park
IPC分类号： H04N19/136 , H04N19/70 , H04N19/463 , H04N19/58 , 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：US11206401B2
公开(公告)日：2021-12-21
申请号：US16077181
申请日：2017-02-10
发明人： Jae-hwan Kim , Jong-seok Lee , Young-o Park
IPC分类号： H04N19/124 , H04N19/136 , H04N19/176 , H04N19/184
摘要： Provided is an image encoding or decoding method and device capable of increasing image compression efficiency by determining a differential quantization parameter of a current block based on statistical information of original samples of the current block or samples reconstructed previously to the current block. The image decoding method includes receiving a bitstream, obtaining a predicted quantization parameter value and a quantized transformation coefficient of a current block from the bitstream, obtaining a differential quantization parameter of the current block based on statistical information of samples reconstructed previously to the current block, obtaining a quantization parameter of the current block based on the differential quantization parameter of the current block and the predicted quantization parameter value, and inversely quantizing the quantized transformation coefficient of the current block based on the quantization parameter of the current block.
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公开(公告)号：US11190784B2
公开(公告)日：2021-11-30
申请号：US16468338
申请日：2018-02-06
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 , H04N19/117 , H04N19/154 , H04N19/80 , G06N3/08 , G06T9/00
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：US11012739B2
公开(公告)日：2021-05-18
申请号：US16084030
申请日：2017-03-14
发明人： Tae-kwon Chang , Sang-ha Kim , Sung-jin Kim , Il-koo Kim , Sung-kweon Park , Young-o Park , Won-young Jang
IPC分类号： H04N21/44 , H04N21/431 , H04N21/25 , G06K9/32 , G06Q30/02 , H04N5/445 , H04N21/258
摘要： Provided is a method, performed by a device, of recognizing content, the method including selecting a template to be used for recognizing content displayed on the device when a type of a content service that provides the content to the device is determined; capturing a screen of the device when a control signal is received by the device; determining whether the captured screen corresponds to a gateway page; determining whether the captured screen corresponds to the selected template when the captured screen corresponds to the gateway page; and generating a template corresponding to the content service, based on the captured screen, when the captured screen does not correspond to the selected template.
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公开(公告)号：US10757416B2
公开(公告)日：2020-08-25
申请号：US15307172
申请日：2015-05-01
发明人： Young-o Park , Kwang-pyo Choi , Jeong-hoon Park
IPC分类号： H04N19/137 , H04N19/132 , H04N19/139 , H04N19/124 , H04N19/177 , H04N19/98 , H04N19/12 , H04N19/182 , H04N19/184
摘要： Provided is a method for adaptively compressing image data. A refresh rate and a compression rate of the image data are determined based on motion information of the image data, and the image data are compressed based on the determined refresh rate and compression rate.
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公开(公告)号：US10609378B2
公开(公告)日：2020-03-31
申请号：US16207656
申请日：2018-12-03
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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29.发明授权公开(公告)号：US09967570B2
公开(公告)日：2018-05-08
申请号：US15676155
申请日：2017-08-14
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. 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：US09451282B2
公开(公告)日：2016-09-20
申请号：US14632673
申请日：2015-02-26
发明人： Il-koo Kim , Young-o Park
IPC分类号： H04N19/51 , H04N19/56 , H04N19/52 , H04N19/513 , H04N19/61 , H04N19/124 , H04N19/573 , H04N19/58 , H04N19/577 , H04N19/176
CPC分类号： H04N19/56 , H04N19/124 , H04N19/176 , H04N19/513 , H04N19/52 , H04N19/573 , H04N19/577 , H04N19/58 , H04N19/61
摘要： Provided are motion vector determining method and apparatus for determining a motion vector via motion vector prediction. The motion vector determining method involves determining a candidate motion vector list comprising motion vectors of a plurality of candidate blocks referred so as to predict a motion vector of a current block, when a reference image of a first candidate block from among the plurality of candidate blocks is different from a reference image of the current block, determining whether or not to use a motion vector of the first candidate block from the candidate motion vector list, based on whether each of the reference image of the current block and the reference image of the first candidate block is a short-term reference image or a long-term reference image, and determining the motion vector of the current block by using a candidate motion vector selected from among the motion vectors comprised in the candidate motion vector list.
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