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公开(公告)号：US11871007B2
公开(公告)日：2024-01-09
申请号：US17941083
申请日：2022-09-09
IPC分类号： G06K9/36 , H04N19/159 , H04N19/126 , H04N19/186 , H04N19/94 , H04N19/105 , H04N19/176 , H04N19/70 , H04N19/172 , H04N19/136 , H04N19/463
CPC分类号： H04N19/159 , H04N19/105 , H04N19/126 , H04N19/136 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/463 , H04N19/70 , H04N19/94
摘要： According to an embodiment, an encoding device includes an index setting unit and an encoding unit. The index setting unit generates a common index in which reference indices of one or more reference images included in a first index and a second index are sorted in a combination so as not to include a same reference image in accordance with a predetermined scanning order. The first index representing a combination of the one or more reference images referred to by a first reference image. The second index representing a combination of the one or more reference images referred to by a second reference image. The encoding unit encodes the common index.
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公开(公告)号：US11303917B2
公开(公告)日：2022-04-12
申请号：US17039277
申请日：2020-09-30
IPC分类号： H04N7/12 , H04N19/51 , H04N19/426 , H04N19/52
摘要： A method of dividing an input image signal into pixel blocks, and performing inter-prediction on the divided pixel blocks. This method includes selecting predicted motion information from a motion information buffer storing motion information in an encoded region, and predicting motion information of an encoding target block by using the predicted motion information. The method further includes acquiring representative motion information from a plurality of items of motion information in an encoded region in accordance with first information indicating a method of selecting the predicted motion information, thereby obtaining only the representative motion information.
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公开(公告)号：US11153593B2
公开(公告)日：2021-10-19
申请号：US16785075
申请日：2020-02-07
发明人： Akiyuki Tanizawa , Takeshi Chujoh
IPC分类号： H04N19/463 , H04N19/105 , H04N19/51 , H04N19/44 , H04N19/182 , H04N19/186 , H04N19/61 , H04N19/91
摘要： An encoding device includes: an index setting unit that sets an index that represents information of a reference image and a weighting factor; an index reconfiguring unit that predicts a reference value of the weighting factor, wherein the reference value indicates a factor to be set if a difference of pixel value between a reference image and a target image to be encoded is less than or equal to a specific value; and an entropy encoding unit that encodes a difference value between the weighting factor and the reference value.
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公开(公告)号：US11140405B2
公开(公告)日：2021-10-05
申请号：US16785054
申请日：2020-02-07
发明人： Akiyuki Tanizawa , Takeshi Chujoh
IPC分类号： H04N19/463 , H04N19/105 , H04N19/51 , H04N19/44 , H04N19/182 , H04N19/186 , H04N19/61 , H04N19/91
摘要： An encoding device includes an index setting unit that sets an index that represents information of a reference image and a weighting factor. An index reconfiguring unit predicts a reference value of the weighting factor. The reference value indicates a factor to be set if a difference of pixel value between a reference image and a target image to be encoded is less than or equal to a specific value. An entropy encoding unit encodes a difference value between the weighting factor and the reference value.
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公开(公告)号：US11039159B2
公开(公告)日：2021-06-15
申请号：US16785028
申请日：2020-02-07
发明人： Akiyuki Tanizawa , Takeshi Chujoh
IPC分类号： H04N19/463 , H04N19/105 , H04N19/51 , H04N19/44 , H04N19/182 , H04N19/186 , H04N19/61 , H04N19/91
摘要： An encoding device includes an index setting unit that sets an index that represents information of a reference image and a weighting factor, and an index reconfiguring unit that predicts a reference value of the weighting factor. The reference value indicates a factor to be set if a difference of pixel value between a reference image and a target image to be encoded is less than or equal to a specific value. The encoding device also includes an entropy encoding unit that encodes a difference value between the weighting factor and the reference value.
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公开(公告)号：US10939133B2
公开(公告)日：2021-03-02
申请号：US16254734
申请日：2019-01-23
发明人： Saori Asaka , Takeshi Chujoh , Akiyuki Tanizawa , Goki Yasuda , Naofumi Wada , Takashi Watanabe
IPC分类号： H04N19/513 , H04N19/46 , H04N19/463 , H04N19/91 , H04N19/51 , H04N19/13 , H04N19/593 , H04N19/176
摘要： A video encoding apparatus is a video encoding apparatus for subjecting a video image to motion compensated prediction coding, comprising an acquisition module to acquire available blocks of blocks having motion vectors from encoded blocks adjacent to a to-be-encoded block and number of the available blocks, an acquisition/selection module to select one selection block from the encoded available blocks, a selection information encoder to encode selection information specifying the selection block using a code table corresponding to the number of available blocks, and an image encoder to subject the to-be-encoded block to motion compensated prediction coding using a motion vector of the selection block.
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公开(公告)号：US20210014518A1
公开(公告)日：2021-01-14
申请号：US17039022
申请日：2020-09-30
IPC分类号： H04N19/51 , H04N19/426
摘要： A method of dividing an input image signal into pixel blocks, and performing inter-prediction on the divided pixel blocks. This method includes selecting predicted motion information from a motion information buffer storing motion information in an encoded region, and predicting motion information of an encoding target block by using the predicted motion information. The method further includes acquiring representative motion information from a plurality of items of motion information in an encoded region in accordance with first information indicating a method of selecting the predicted motion information, thereby obtaining only the representative motion information.
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公开(公告)号：US20200252623A1
公开(公告)日：2020-08-06
申请号：US16857650
申请日：2020-04-24
IPC分类号： H04N19/159 , H04N19/126 , H04N19/186 , H04N19/94 , H04N19/105 , H04N19/176 , H04N19/70 , H04N19/172 , H04N19/136 , H04N19/463
摘要： According to an embodiment, an encoding device includes an index setting unit and an encoding unit. The index setting unit generates a common index in which reference indices of one or more reference images included in a first index and a second index are sorted in a combination so as not to include a same reference image in accordance with a predetermined scanning order. The first index representing a combination of the one or more reference images referred to by a first reference image. The second index representing a combination of the one or more reference images referred to by a second reference image. The encoding unit encodes the common index.
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公开(公告)号：US20180084271A1
公开(公告)日：2018-03-22
申请号：US15826438
申请日：2017-11-29
发明人： SAORI ASAKA , Takeshi Chujoh , Akiyuki Tanizawa , Goki Yasuda , Naofumi Wada , Takashi Watanabe
IPC分类号： H04N19/513
CPC分类号： H04N19/513 , H04N19/13 , H04N19/176 , H04N19/46 , H04N19/463 , H04N19/51 , H04N19/593 , H04N19/91
摘要： A video encoding apparatus is a video encoding apparatus for subjecting a video image to motion compensated prediction coding, comprising an acquisition module to acquire available blocks of blocks having motion vectors from encoded blocks adjacent to a to-be-encoded block and number of the available blocks, an acquisition/selection module to select one selection block from the encoded available blocks, a selection information encoder to encode selection information specifying the selection block using a code table corresponding to the number of available blocks, and an image encoder to subject the to-be-encoded block to motion compensated prediction coding using a motion vector of the selection block.
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公开(公告)号：US09681138B2
公开(公告)日：2017-06-13
申请号：US14799253
申请日：2015-07-14
IPC分类号： G06K9/36 , H04N19/159 , H04N19/126 , H04N19/186 , H04N19/94 , H04N19/463 , H04N19/105 , H04N19/176 , H04N19/70 , H04N19/172 , H04N19/136
CPC分类号： H04N19/159 , H04N19/105 , H04N19/126 , H04N19/136 , H04N19/172 , H04N19/176 , H04N19/186 , H04N19/463 , H04N19/70 , H04N19/94
摘要： According to an embodiment, an encoding device includes an index setting unit and an encoding unit. The index setting unit generates a common index in which reference indices of one or more reference images included in a first index and a second index are sorted in a combination so as not to include a same reference image in accordance with a predetermined scanning order. The first index representing a combination of the one or more reference images referred to by a first reference image. The second index representing a combination of the one or more reference images referred to by a second reference image. The encoding unit encodes the common index.
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