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公开(公告)号:US20200162748A1
公开(公告)日:2020-05-21
申请号:US16751967
申请日:2020-01-24
IPC分类号: H04N19/176 , H04N19/146 , H04N19/436 , H04N19/103
摘要: A video image encoding device, in a first mode, variable-length-encodes a residual coefficient to generate a coefficient code string, outputs the coefficient code string and the header information in a state in which the header information is associated with the coefficient code string, in a second mode, directly uses a differential image as a coefficient code string without variable-length-encoding the differential image, and outputs the coefficient code string and the header information in a state in which the header information is associated with the coefficient code string.
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公开(公告)号:US20240040152A1
公开(公告)日:2024-02-01
申请号:US18380277
申请日:2023-10-16
IPC分类号: H04N19/60 , H04N19/172 , H04N19/16 , H04N19/70 , H04N19/112 , H04N19/463
CPC分类号: H04N19/60 , H04N19/172 , H04N19/16 , H04N19/70 , H04N19/112 , H04N19/463 , H04N19/61
摘要: An encoding method includes determining video format information, (i) setting each of all frames or all fields which are included in the video, as a picture, regardless of whether the video format is the interlace format or the progressive format, (ii) setting a POC indicating display order to each of all of the set pictures one by one, the POC being different each other, and encoding a picture to be encoded which is the frame or the field with reference to a picture previously encoded before encoding the picture to be encoded. In the encoding, the video is encoded with a syntax structure which is not dependent on the video format, the video format information is encoded in a header of a sequence which is a unit of the video, and the encoded bit stream is generated.
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公开(公告)号:US20230188703A1
公开(公告)日:2023-06-15
申请号:US18106025
申请日:2023-02-06
IPC分类号: H04N19/102 , H04N19/172 , H04N19/46 , H04N19/112 , H04N19/16
CPC分类号: H04N19/102 , H04N19/16 , H04N19/46 , H04N19/112 , H04N19/172 , H04N19/70
摘要: A video decoding device, in the case where a video of the progressive format is inputted, processes a frame as a picture, in the case where a video of the interlace format is inputted, processes a field as a picture. A video decoding device performs display control corresponding to a format of the both video by analyzing display control information in display control information analyzer. The display control information includes sequence unit display control information which is commonly used in a display process of all pictures that belong to a sequence to be decoded and picture unit display control information which is individually used in a display process of a picture to be decoded. A second code string analyzer acquires each of the sequence unit display control information and the picture unit display control information from an extended information area in units of pictures.
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公开(公告)号:US20170289553A1
公开(公告)日:2017-10-05
申请号:US15624947
申请日:2017-06-16
IPC分类号: H04N19/60 , H04N19/112 , H04N19/16 , H04N19/172 , H04N19/463 , H04N19/61
CPC分类号: H04N19/60 , H04N19/112 , H04N19/16 , H04N19/172 , H04N19/463 , H04N19/61 , H04N19/70
摘要: An encoding method includes determining video format information, (i) setting each of all frames or all fields which are included in the video, as a picture, regardless of whether the video format is the interlace format or the progressive format, (ii) setting a POC indicating display order to each of all of the set pictures one by one, the POC being different each other, and encoding a picture to be encoded which is the frame or the field with reference to a picture previously encoded before encoding the picture to be encoded. In the encoding, the video is encoded with a syntax structure which is not dependent on the video format, the video format information is encoded in a header of a sequence which is a unit of the video, and the encoded bit stream is generated.
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公开(公告)号:US20210358005A1
公开(公告)日:2021-11-18
申请号:US17386119
申请日:2021-07-27
发明人: Kiyofumi ABE , Kazuhito KIMURA , Hideyuki OHGOSE , Hiroshi ARAKAWA , Koji ARIMURA , Kazuma SAKAKIBARA
摘要: A video coding apparatus including a dividing part that outputs the coding target picture divided for each coding unit (basic CU); a prediction processor that generates a prediction image by performing one of intra prediction and inter-screen prediction; a difference calculator that generates a difference image by calculating a difference between the generated prediction image and an image corresponding to the prediction image in the coding target picture; a residual coder that generates a residual coefficient by performing transform processing and quantization processing on the generated difference image; an integration unit that integrates a plurality of basic CUs included in an N×N-pixel region into one new CU, and a code string generator that generates a code string corresponding to the post-integration new CU by performing variable-length coding and arithmetic coding on coding information and the residual coefficient.
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公开(公告)号:US20210250615A1
公开(公告)日:2021-08-12
申请号:US17245206
申请日:2021-04-30
IPC分类号: H04N19/60 , H04N19/172 , H04N19/16 , H04N19/70 , H04N19/112 , H04N19/463
摘要: An encoding method includes determining video format information, (i) setting each of all frames or all fields which are included in the video, as a picture, regardless of whether the video format is the interlace format or the progressive format, (ii) setting a POC indicating display order to each of all of the set pictures one by one, the POC being different each other, and encoding a picture to be encoded which is the frame or the field with reference to a picture previously encoded before encoding the picture to be encoded. In the encoding, the video is encoded with a syntax structure which is not dependent on the video format, the video format information is encoded in a header of a sequence which is a unit of the video, and the encoded bit stream is generated.
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公开(公告)号:US20200162747A1
公开(公告)日:2020-05-21
申请号:US16751932
申请日:2020-01-24
IPC分类号: H04N19/176 , H04N19/436 , H04N19/146 , H04N19/103
摘要: A video image decoding device receives, as the code string to be decoded, a first code string to be decoded including in formation based on an encoded residual coefficient and header information or a second code string to be decoded including a residual image obtained in encoding the code string to be decoded and header information. The video image decoding device, when the code string to be decoded that is received by the receiver is the first code string to be decoded, adds the residual decoded image and the predictive image to each other to generate and output a reconstructed image and, when the code string to be decoded received by the receiver is the second code string to be decoded, adds a residual image included in the second code string to be decoded and the predictive image to each other to generate and output a reconstructed image.
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公开(公告)号:US20240171730A1
公开(公告)日:2024-05-23
申请号:US18397083
申请日:2023-12-27
IPC分类号: H04N19/102 , H04N19/112 , H04N19/16 , H04N19/172 , H04N19/46 , H04N19/577 , H04N19/61 , H04N19/70
CPC分类号: H04N19/102 , H04N19/112 , H04N19/16 , H04N19/172 , H04N19/46 , H04N19/577 , H04N19/61 , H04N19/70
摘要: A video decoding device, in the case where a video of the progressive format is inputted, processes a frame as a picture, in the case where a video of the interlace format is inputted, processes a field as a picture. A video decoding device performs display control corresponding to a format of the both video by analyzing display control information in display control information analyzer. The display control information includes sequence unit display control information which is commonly used in a display process of all pictures that belong to a sequence to be decoded and picture unit display control information which is individually used in a display process of a picture to be decoded. A second code string analyzer acquires each of the sequence unit display control information and the picture unit display control information from an extended information area in units of pictures.
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公开(公告)号:US20240064314A1
公开(公告)日:2024-02-22
申请号:US18385588
申请日:2023-10-31
IPC分类号: H04N19/176 , H04N19/103 , H04N19/146 , H04N19/436
CPC分类号: H04N19/176 , H04N19/103 , H04N19/146 , H04N19/436 , H04N19/50
摘要: A video image encoding device, in a first mode, variable-length-encodes a residual coefficient to generate a coefficient code string, outputs the coefficient code string and the header information in a state in which the header information is associated with the coefficient code string, in a second mode, directly uses a differential image as a coefficient code string without variable-length-encoding the differential image, and outputs the coefficient code string and the header information in a state in which the header information is associated with the coefficient code string.
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公开(公告)号:US20230308663A1
公开(公告)日:2023-09-28
申请号:US18204494
申请日:2023-06-01
IPC分类号: H04N19/176 , H04N19/103 , H04N19/146 , H04N19/436
CPC分类号: H04N19/176 , H04N19/103 , H04N19/146 , H04N19/436 , H04N19/50
摘要: A video image decoding device receives, as the code string to be decoded, a first code string to be decoded including in formation based on an encoded residual coefficient and header information or a second code string to be decoded including a residual image obtained in encoding the code string to be decoded and header information. The video image decoding device, when the code string to be decoded that is received by the receiver is the first code string to be decoded, adds the residual decoded image and the predictive image to each other to generate and output a reconstructed image and, when the code string to be decoded received by the receiver is the second code string to be decoded, adds a residual image included in the second code string to be decoded and the predictive image to each other to generate and output a reconstructed image.
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