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1.发明公开公开(公告)号：US20240305797A1
公开(公告)日：2024-09-12
申请号：US18575010
申请日：2022-08-26
发明人： Yue YU , Haoping YU
IPC分类号： H04N19/196 , H04N19/119 , H04N19/169 , H04N19/18 , H04N19/182 , H04N19/186 , H04N19/436
CPC分类号： H04N19/197 , H04N19/119 , H04N19/18 , H04N19/182 , H04N19/186 , H04N19/1883 , H04N19/436
摘要： In some embodiments, a video decoder decodes a video from a bitstream of the video using a history-based Rice parameter derivation along with the wavefront parallel processing (WPP). The video decoder accesses a binary string representing a partition of the video and processes each coding tree unit (CTU) in the partition to generate decoded coefficient values in the CTU. The process includes prior to decoding the CTU, determining whether WPP is enabled and the CTU is the first CTU of a current CTU row in the partition, and if so, setting a history counter to an initial value. The process further includes decoding the CTU by calculating the Rice parameters for transform units (TUs) in the CTU based on the value of the history counter and decoding the binary string corresponding to the TUs in the CTU into coefficient values of the TUs based on the calculated Rice parameters.
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公开(公告)号：US20240289997A1
公开(公告)日：2024-08-29
申请号：US18690187
申请日：2022-09-09
发明人： Vladyslav ZAKHARCHENKO , Haoping YU , Yue YU
IPC分类号： G06T9/00
CPC分类号： G06T9/001
摘要： A method for decoding three-dimensional (3D) content comprising extracting a video frame from a video, wherein the video frame includes connectivity information associated with the 3D content; and reconstructing the 3D content based on the connectivity information. The reconstructing comprises: determining an end of the connectivity information with respect to a mesh frameblock based on a termination connectivity coding unit (CCU) in the block; and determining an end of the connectivity information with respect to a mesh frame based on a termination block in the mesh frame.
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公开(公告)号：US20240333973A1
公开(公告)日：2024-10-03
申请号：US18578964
申请日：2022-03-22
发明人： Vladyslav ZAKHARCHENKO , Yue YU
IPC分类号： H04N19/597 , H04N19/129 , H04N19/176
CPC分类号： H04N19/597 , H04N19/129 , H04N19/176
摘要： A system may include a demultiplexer, atlas component decoder, and an atlas pre-processing subsystem that includes a processor, and a non-transitory computer readable medium having encoded thereon a set of instructions executable by the processor to arrange one or more sub-bitstreams of a decoded atlas bitstream into one or more blocks, assign head information to each block, and generate a block-order decoded atlas bitstream, wherein generating the block-order decoded atlas bitstream includes ordering the one or more blocks of the decoded atlas bitstream in a scan order following a space-filling curve.
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公开(公告)号：US20240297997A1
公开(公告)日：2024-09-05
申请号：US18566062
申请日：2022-06-01
发明人： Yue YU , Haoping YU
IPC分类号： H04N19/124 , H04N19/14 , H04N19/18
CPC分类号： H04N19/124 , H04N19/14 , H04N19/18
摘要： A method for encoding a picture of a video including a current transform unit is disclosed. A coefficient of each position in the current transform unit is quantized by a processor to generate quantization levels of the current transform unit. A value of a Rice parameter of a current position in the current transform unit for Golomb-Rice binarization is determined by the processor based on a value of a history variable for a previous transform unit preceding the current transform unit. The value of the history variable is determined based on at least one of a bit depth or a bit rate for encoding the picture. The quantization level of the current position is converted by the processor into a binary representation using Golomb-Rice binarization with the value of the Rice parameter. The binary representation of the current position is compressed by the processor into a bitstream.
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公开(公告)号：US20240214585A1
公开(公告)日：2024-06-27
申请号：US18288248
申请日：2022-04-25
发明人： Yue YU , Haoping YU
IPC分类号： H04N19/176 , H04N19/117 , H04N19/124 , H04N19/132 , H04N19/184 , H04N19/46 , H04N19/60
CPC分类号： H04N19/176 , H04N19/117 , H04N19/124 , H04N19/132 , H04N19/184 , H04N19/46 , H04N19/60
摘要： In certain aspects, a method for encoding a picture of a video including a coding block is disclosed. A coefficient of each position in the coding block to is quantized by a processor to generate a quantization level of the respective position. A high throughput mode is enabled. In the high throughput mode, at least one residual coding bin of the coding block is changed from a context-coded bin to a bypass-coded bin, and bypass bit-alignment is applied. The quantization levels of the coding block are encoded by the processor into a bitstream in the high throughput mode.
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6.发明公开公开(公告)号：US20240298015A1
公开(公告)日：2024-09-05
申请号：US18661605
申请日：2024-05-11
发明人： Yue YU , Haoping YU
IPC分类号： H04N19/196 , H04N19/13 , H04N19/167 , H04N19/176 , H04N19/436 , H04N19/96
CPC分类号： H04N19/197 , H04N19/13 , H04N19/167 , H04N19/176 , H04N19/436 , H04N19/96
摘要： A method for decoding a video from a video bitstream is provided and at least includes: accessing a binary string representing a partition of the video, the partition comprising a plurality of coding tree units (CTUs) forming one or more CTU rows; for each CTU of the plurality of CTUs in the partition, determining whether the CTU is the first CTU in a slice or a tile; in response to determining that the CTU is the first CTU in a slice or a tile, initializing context variables for context-adaptive binary arithmetic coding (CABAC) according to a first context variable initialization process; in response to determining that the CTU is not the first CTU in a slice or a tile, determining whether parallel decoding is enabled and the CTU is the first CTU in a CTU row of a tile.
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公开(公告)号：US20240364939A1
公开(公告)日：2024-10-31
申请号：US18685141
申请日：2022-08-25
发明人： Yue YU , Haoping YU
IPC分类号： H04N19/96 , H04N19/124 , H04N19/18 , H04N19/46
CPC分类号： H04N19/96 , H04N19/124 , H04N19/18 , H04N19/46
摘要： In some embodiments, a video decoder decodes a video from a bitstream of the video using a history-based rice parameter derivation. The video decoder accesses a binary string representing a partition of the video and processes each coding tree unit (CTU) in the partition to generate decoded coefficient values in the CTU. The process includes updating a replacement variable for a transform unit (TU) in the CTU for calculating rice parameters independently of the previous TU or CTU. The process further includes calculating the rice parameters for TU in the CTU based on the value of the replacement variable and decoding the binary string corresponding to the TU into coefficient values based on the calculated rice parameters. Pixel values of the TU can be determined from the decoded coefficient values for output.
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公开(公告)号：US20240364910A1
公开(公告)日：2024-10-31
申请号：US18753216
申请日：2024-06-25
发明人： Jonathan GAN , Yue YU , Haoping YU
IPC分类号： H04N19/46 , H04N19/124 , H04N19/184
CPC分类号： H04N19/46 , H04N19/124 , H04N19/184
摘要： A method for decoding a video includes that: a decoder decodes a video from a bitstream of the video; the decoder accesses a bitstream of the video and extracts a GCI flag from the bitstream; the decoder determines that one or more general constraints are imposed for the video based on the GCI flag value and extracts, from the bitstream of the video, a value indicating a quantity of additional bits included in the bitstream of the video, the additional bits include flag bits indicating respective additional coding tools to be constrained for the video; if the value is greater than five, the decoder extracts six flags from the bitstream of the video that indicate respective constraints for six additional coding tools; and the decoder decodes the bitstream of the video into images based on the constraints for the six additional coding tools indicated by the six flags.
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公开(公告)号：US20240364907A1
公开(公告)日：2024-10-31
申请号：US18764570
申请日：2024-07-05
发明人： Jonathan GAN , Yue YU , Haoping YU
IPC分类号： H04N19/44 , H04N19/184
CPC分类号： H04N19/44 , H04N19/184
摘要： A decoding method, system and storage medium are disclosed. In the method, a video decoder decodes a video from a bitstream of the video. The video decoder decodes, from the bitstream, an additional bit count M indicating a quantity of additional general constraints information (GCI) bits included in the bitstream. The additional bits include flag bits indicating respective additional coding tools to be constrained for the video, and an expected value of the additional bit count is 0, 6 or greater than 6. The decoder decodes M-6 bits that follow six flag bits in the bitstream in response to determining that the decoded additional bit count M is greater than 6. The decoder further decodes the remaining portion of the bitstream into images independent of the decoded M-6 bits and based, at least in part, upon constraints specified for the respective additional coding tools by the six flag bits.
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公开(公告)号：US20240298030A1
公开(公告)日：2024-09-05
申请号：US18689653
申请日：2022-09-09
发明人： Vladyslav ZAKHARCHENKO , Haoping YU , Yue YU
IPC分类号： H04N19/597 , H04N19/176
CPC分类号： H04N19/597 , H04N19/176
摘要： Systems and methods of the present disclosure provide solutions that address technological challenges related to 3D content. These solutions include a computer-implemented method for encoding three-dimensional (3D) content comprising: determining connectivity information of a mesh frame; packing the connectivity information of the mesh frame into coding blocks; dividing the coding blocks into connectivity coding units (CCUs) comprising connectivity coding samples; and encoding a video connectivity frame associated with the mesh frame based on the coding blocks and the connectivity coding units.
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