公开(公告)号：US20240364922A1

公开(公告)日：2024-10-31

申请号：US18766006

申请日：2024-07-08

申请人： Telefonaktiebolaget L M Ericsson (publ)

发明人： Jonatan SAMUELSSON ,  Rickard SJÖBERG

IPC分类号： H04N19/58 ,  H04N19/105 ,  H04N19/169 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/423 ,  H04N19/44 ,  H04N19/463 ,  H04N19/503 ,  H04N19/70

CPC分类号： H04N19/58 ,  H04N19/105 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/188 ,  H04N19/423 ,  H04N19/44 ,  H04N19/463 ,  H04N19/503 ,  H04N19/70

摘要： An encoder calculates an indication to a previous reference picture having temporal identity of zero. The encoder creates a first set of indicators to the previous reference picture, to all reference pictures in a first reference picture set of the previous reference picture, and to all pictures following the previous reference picture in decoding order and precede the current picture in decoding order. The encoder sets a flag for picture order count cycle, when a long term reference picture (LTRP) has least significant bits (LSBs) of a picture order count, for which more than one picture in the first set share same value of the LSBs of picture order count as the LTRP. The decoder obtains LSB of a picture order count for a LTRP in a reference picture set of the current picture. The decoder concludes non-compliant bitstream based on indications provided by the flag.

公开(公告)号：US20240364910A1

公开(公告)日：2024-10-31

申请号：US18753216

申请日：2024-06-25

申请人： GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

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.

公开(公告)号：US20240364907A1

公开(公告)日：2024-10-31

申请号：US18764570

申请日：2024-07-05

申请人： GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.

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.

公开(公告)号：US12126838B2

公开(公告)日：2024-10-22

申请号：US17983774

申请日：2022-11-09

申请人： Tencent America LLC

发明人： Yixin Du ,  Xin Zhao ,  Shan Liu

IPC分类号： H04N19/80 ,  H04N19/103 ,  H04N19/117 ,  H04N19/132 ,  H04N19/136 ,  H04N19/184 ,  H04N19/70

CPC分类号： H04N19/80 ,  H04N19/103 ,  H04N19/117 ,  H04N19/132 ,  H04N19/136 ,  H04N19/184 ,  H04N19/70

摘要： Aspects of the disclosure provide methods and apparatuses for video encoding/decoding. In some examples, an apparatus for video decoding includes processing circuitry. The processing circuitry reconstructs a first sample in a video of a coded video bitstream based on a non-linear mapping based filter with a first filter shape configuration of a plurality of filter shape configurations. The plurality of filter shape configurations including at least two filter shape configurations that are based on a same geometric shape. The processing circuitry determines a switch from the first filter shape configuration to a second filter shape configuration. The processing circuitry reconstructs a second sample in the video based on the non-linear mapping based filter with the second filter shape configuration.

公开(公告)号：US12120305B2

公开(公告)日：2024-10-15

申请号：US18057086

申请日：2022-11-18

申请人： V-NOVA INTERNATIONAL LIMITED

发明人： Simone Ferrara ,  Guido Meardi

IPC分类号： H04N19/132 ,  H04N19/172 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30 ,  H04N19/33 ,  H04N19/46 ,  H04N19/98

CPC分类号： H04N19/132 ,  H04N19/172 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30 ,  H04N19/33 ,  H04N19/46 ,  H04N19/98

摘要： There is provided a method for processing an input signal (700). The input signal (700) is processed at least by converting the input signal (700) from a first colour space to a second colour space, to produce a first processed signal. The processed signal is encoded by a first encoding module (703) to generate a first encoded signal (710). A decoded signal is generated by decoding the first encoded signal (710). The decoded signal is processed at least by converting the decoded signal from the second colour space to the first colour space to produce a second processed signal. The second processed signal and the input signal (700) are processed by a second encoding module (707) to generate a second encoded signal (720).

公开(公告)号：US12113974B2

公开(公告)日：2024-10-08

申请号：US17934734

申请日：2022-09-23

申请人： Nokia Technologies Oy

发明人： Miska Matias Hannuksela ,  Emre Baris Aksu ,  Francesco Cricrì ,  Hamed Rezazadegan Tavakoli

IPC分类号： H04N19/117 ,  H04N19/184 ,  H04N19/70 ,  H04N19/85

CPC分类号： H04N19/117 ,  H04N19/184 ,  H04N19/70 ,  H04N19/85

摘要： A method, an apparatus, and a computer program product are provided. An example method includes defining an enhancement message comprising at least one of the following: an identifying number for identifying a post-processing filter; a mode identity (idc) field used of indicating association of a post-processing filter with the identifying number; a flag for specifying the enhancement message being used for a current layer; and the payload byte comprising a bitstream; and using the enhancement message for at least one of specifying a neural network that is used as a post-processing filter or cancelling a use of a previous post-processing filter with the same identifying number.

公开(公告)号：US20240333934A1

公开(公告)日：2024-10-03

申请号：US18738296

申请日：2024-06-10

申请人： Panasonic Intellectual Property Corporation of America

发明人： Kiyofumi ABE ,  Takahiro Nishi ,  Tadamasa Toma ,  Yusuke Kato

IPC分类号： H04N19/13 ,  H04L65/70 ,  H04L65/75 ,  H04N19/176 ,  H04N19/184 ,  H04N19/70

CPC分类号： H04N19/13 ,  H04L65/70 ,  H04L65/75 ,  H04N19/176 ,  H04N19/184 ,  H04N19/70

摘要： An encoder includes memory and circuitry which: (i) encodes an image block; (ii) when encoding the image block: binarizes coefficient information indicating coefficients of the image block; and controls whether to apply arithmetic encoding to a binary data string obtained by binarizing the coefficient information; and (iii) when binarizing the coefficient information: binarizes the coefficient information according to a first syntax structure when arithmetic encoding is applied to the data string and a predetermined condition is not satisfied; binarizes the coefficient information according to a second syntax structure when arithmetic encoding is applied to the data string and the predetermined condition is satisfied; binarizes the coefficient information according to the second syntax structure when no arithmetic encoding is applied to the data string; and subtracts 1 from a value of an initial non-zero coefficient when no arithmetic encoding is applied to the data string when encoding the image block.

公开(公告)号：US12108043B2

公开(公告)日：2024-10-01

申请号：US18225984

申请日：2023-07-25

申请人： TCL King Electrical Appliances (Huizhou) Co. Ltd.

发明人： Sunmi Yoo ,  Jungah Choi ,  Seunghwan Kim ,  Jangwon Choi ,  Jin Heo

IPC分类号： H04N19/124 ,  H04N19/12 ,  H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/184 ,  H04N19/70 ,  H04N19/159

CPC分类号： H04N19/124 ,  H04N19/12 ,  H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/184 ,  H04N19/70 ,  H04N19/159

摘要： An image decoding method according to the present document comprises the steps of: receiving a bitstream including residual information; deriving a quantized transform coefficient for a current block on the basis of the residual information included in the bitstream; deriving a residual sample for the current block on the basis of the quantized transform coefficient; and generating a reconstructed picture on the basis of the residual sample for the current block, wherein the residual information may be derived via different syntax elements depending on whether a transform has been applied to the current block.

公开(公告)号：US20240323407A1

公开(公告)日：2024-09-26

申请号：US18612060

申请日：2024-03-21

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Sungho Jun

IPC分类号： H04N19/184

CPC分类号： H04N19/184

摘要： Provided are an image processing device and an operating method of the image processing device. An image processing device includes a multimedia intellectual property (IP) configured to process image data for pixels constituting one frame image, and an encoder configured to generate compressed data by performing compression on the image data, wherein the encoder includes a compression module and a first buffer. The compression module is configured to generate first compressed data by performing compression on the first image data including a most significant bit (MSB) of the image data, and the first buffer is configured to store second image data containing a least significant bit (LSB) of the image data, in order to skip compression for the second image data.

公开(公告)号：US20240314314A1

公开(公告)日：2024-09-19

申请号：US18443139

申请日：2024-02-15

申请人： Microsoft Technology Licensing, LLC

发明人： Gary J. Sullivan

IPC分类号： H04N19/124 ,  H04N19/117 ,  H04N19/126 ,  H04N19/15 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/184 ,  H04N19/186 ,  H04N19/70 ,  H04N19/86

CPC分类号： H04N19/124 ,  H04N19/117 ,  H04N19/126 ,  H04N19/15 ,  H04N19/172 ,  H04N19/174 ,  H04N19/186 ,  H04N19/70 ,  H04N19/86 ,  H04N19/176 ,  H04N19/184

摘要： Innovations in use of chroma quantization parameter (“QP”) offsets when determining a control parameter for deblock filtering. For example, as part of encoding, an encoder sets a picture-level chroma QP offset and slice-level chroma QP offset for encoding of a slice of a picture. The encoder also performs deblock filtering of at least part of the slice, where derivation of a control parameter considers only the picture-level chroma QP offset. The encoder outputs at least part of a bitstream including the encoded content. As part of decoding, a corresponding decoder sets a picture-level chroma QP offset and a slice-level chroma QP offset for decoding of a slice of a picture, but derivation of a control parameter for deblock filtering considers only the picture-level chroma QP offset.