Abstract: A positioning signal processing method includes receiving positioning reference signal (PRS) configuration information from a positioning device. A PRS is received as a PRS resource set. Each PRS resource set includes one or more PRSs. One access network device corresponds to one or more PRS resource sets. The positioning signal processing method further includes determining PRS time domain information based on the PRS configuration information. The time domain information includes a periodicity (P) of the PRS and a symbol length of the PRS in the P. The positioning signal processing method further includes receiving a plurality of PRSs based on the PRS time domain information.

Abstract: Methods and apparatus for video processing are disclosed. The processing may include video encoding, video decoding, or video transcoding. One example method includes performing a conversion between a video including a picture including one or more slices and a bitstream of the video. The conversion conforms to a rule that specifies that whether a deblocking filter is applied to the one or more slices referring to a picture parameter set is based at least on a first syntax element included in the picture parameter set. The first syntax element indicates whether the deblocking filter is disabled for the picture.

Abstract: Methods, apparatus, and systems for improving data transmission efficiency in a wireless network are described.

Abstract: A method for visual media processing, including performing a conversion between a current chroma video block of visual media data and a bitstream representation of the current chroma video block. During the conversion, a chroma residual of the current chroma video block is scaled based on a scaling coefficient. The scaling coefficient is derived at least based on luma samples located in predefined positions.

Abstract: A method includes performing a conversion between a current slice of a current picture of a video and a bitstream of the video, wherein the bitstream conforms to a format rule, and wherein the format rule specifies that values of a plurality of syntax elements indicative of whether prediction weights are included in a slice header of the current slice are inferred based on a slice type of the current slice and a value of a first flag included in a picture parameter set (PPS) referred to by the current picture.

Abstract: A video processing method includes deriving multiple temporal motion vector prediction (TMVP) candidates for a video block in a current picture based on multiple blocks associated with a second block in one or more pictures that are temporally co-located with the current picture, wherein the current picture is excluded from the one or more pictures, and the second block is temporally collocated with the video block, wherein the second block has a same size as the video block, and wherein a relative position of the second block to a top-left corner of a second picture of the one or more pictures is same as that of the video block to a top-left corner of the current picture; adding the multiple TMVP candidates to a motion candidate list associated with the video block; and performing a conversion between the video block and a bitstream.

Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: obtaining, for a conversion between a current video block of a video and a bitstream of the video, a motion candidate list for the current video block; determining, based on a similarity metric between a first motion candidate and a second motion candidate in the motion candidate list, whether to update the motion candidate list; and performing the conversion based on the determination.

Abstract: Embodiments of the disclosure provide a solution for video processing. A method for video processing is proposed. The method includes: generating, for a conversion between a video unit of a video and a bitstream of the video, an intra mode for the video unit based on coding information associated with the video unit, wherein the video unit is an intra template matching (TM) coded block or the video unit is an intra copy block (IBC) coded block; and performing the conversion based on the generated intra mode.

Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, for a conversion between a current video block of a video and a bitstream of the video, a sign prediction of a block vector difference (BVD) of the current video block; determining the BVD at least based on the sign prediction of the BVD; and performing the conversion based on the BVD.

Abstract: A method for processing video data is disclosed. The method includes: performing a conversion between visual media data and a bitstream of the visual media data by an image compression framework, wherein the image compression framework includes a preprocessing function and a compressor, and the visual media data is processed by the preprocessing function and the compressor sequentially, and wherein the preprocessing function receives a first image among the visual media data with a size of W0×H0×C0 as input and outputs a preprocessed first image with a size of W1×H1×C1, wherein W0 is an input width, H0 is an input height, and C0 is an input channel number, and wherein W1 is an output width, H1 is an output height, and C1 is an output channel number.

Abstract: Embodiments of the present disclosure provide a solution for point cloud coding. A method for point cloud coding is proposed. The method comprises: determining, for a conversion between a current frame of a point cloud sequence and a bitstream of the point cloud sequence, first attribute information of a first node of the current frame based on second attribute information of a second node of the current frame, a node representing a spatial partition of the current frame, a first partition depth of the first node being different from a second partition depth of the second node; and performing the conversion based on the first attribute information.

Abstract: A method for dynamic access control includes receiving a query request associated with a specific person within an organization and a target access object for which access control is to be performed. The method also includes utilizing an access control knowledge map for inferences based on the query request, and returning a query result according to the inferences. The query result indicates an access permission of the specific person for the target access object.

Abstract: An exemplary embodiment of the present disclosure provides a photocatalyst system. This system includes a photocatalyst comprising an organic material infused with clusters of an inorganic material diffused throughout a bulk of the organic material, wherein the organic material and the clusters of the inorganic material are configured such that the organic material photosensitizes the inorganic material. Another exemplary embodiment of the present disclosure provides a method of photocatalyzing a reaction. This method includes providing any of the photocatalysts disclosed herein; mixing the photocatalyst with a reactant to form a reaction mixture; and exposing the reaction mixture to a light source.

Abstract: A method of video processing includes performing a conversion between a video including a video region and a bitstream of the video according to a rule. The rule specifies a relationship between enablement of a palette mode and a coding type of the video region. The video region may represent a coding block of the video.

Abstract: A video processing method includes performing a conversion between a video including a video unit and a coded representation of the video, where, after the video unit is encoded or decoded with an intra prediction mode, one or more frequence tables and/or one or more sorted intra prediction mode (IPM) tables are selectively updated according to a rule, where the one or more frequence tables include information about frequence of the intra prediction mode used for processing the video unit in the conversion, where the frequence indicates an occurrence of the intra prediction mode used for the conversion, and where the one or more sorted IPM tables indicate the intra prediction mode used in the processing.

Abstract: A method of video processing is described. The method includes performing a conversion between a chroma block of a video region of a video picture of a video and a coded representation of the video according to a rule. The rule specifies that, due to the chroma block having a size M×N, the chroma block is disallowed to be represented in the coded representation using an intra coding mode. M and N are integers that indicate a width and a height of the chroma block, respectively. The intra coding mode includes coding the chroma block based on a previously coded video region of the video picture.

Abstract: A mechanism for processing video data is disclosed. The mechanism determines to modify a video unit attendant to applying a video compression function. The modification may include applying a geometric conversion to the video unit. A conversion is performed between a visual media data and a bitstream based on the modified video unit.

Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, for a conversion between a current video block of a video and a bitstream of the video, whether a candidate frame associated with the current video block is a co-located frame based on a frame type of the candidate frame, the co-located frame being co-located with a frame comprising the current video block; and performing the conversion based on the determining.

Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: determining, for a conversion between a current block of a video and a bitstream of the video, motion information of the current block based on motion information of a neighboring block of the current block and an intra block copy merge mode with block vector difference (IBC-MBVD) mode, the neighboring block being coded with a reconstruction-reordered intra block copy (RRIBC) mode; and performing the conversion based on the motion information of the current block.

Abstract: Embodiments of the disclosure provide a solution for video processing. A method for video processing is proposed. The method includes: generating, for a conversion between a video unit of a video and a bitstream of the video unit, a sample value of a first color component of the video unit that is corresponding to a sample of a second color component by applying a plurality of filters to at least one sample of the first color component; and performing the conversion based on the generated sample value.