Abstract: Methods and devices for video decoding are provided. The method may include obtaining a plurality of coding blocks within a video frame, where the plurality of coding blocks may include at least one chroma coding block and a plurality of luma coding blocks. Further, the method may include determining whether to apply OBMC to the at least one chroma coding block and the plurality of luma coding blocks to generate prediction samples for the video frame in response to determining that a local chroma tree partition is applied to the plurality of coding blocks.

Abstract: Methods and devices are provided for deriving constructed affine merge candidates. The method includes obtaining a first reference picture and a second reference picture associated with an inter mode coded block, where the first reference picture is before a current picture and the second reference picture is after the current picture in display order, obtaining a first motion vector from the inter mode coded block to a reference block in the first reference picture, obtaining a second motion vector from the inter mode coded block to a reference block in the second reference picture, applying bi-directional optical flow (BDOF) or decoder-side motion vector refinement (DMVR) to the inter mode coded block based on a mode information of the inter mode coded block, and predicting a bi-prediction of the inter mode coded block based on the applied BDOF or DMVR.

Abstract: A method of video coding comprises independently generating a respective intra prediction for each of a plurality of corresponding sub-partitions. Each respective intra prediction is generated using a plurality of reference samples from a current coding block. Illustratively, no reconstructed sample from a first sub-partition of the plurality of corresponding sub-partitions is used to generate a respective intra prediction for any other sub-partition of the plurality of corresponding sub-partitions, and each of the plurality of corresponding sub-partitions has a width less than or equal to 2.

Abstract: A method for video coding is provided, including: providing a motion vector (MV) rounding process that is configured to perform a MV rounding operation; applying the MV rounding process to at least a first MV used in a first prediction tool selected from a first set of tools including: pair-wise merge candidate, triangle prediction mode, and affine mode; and applying the MV rounding process to at least a second MV used in a second prediction tool selected from a second set of tools including: temporal motion vector prediction (TMVP), alternative temporal motion vector prediction (ATMVP), and merge mode with motion vector differences (MMVD).

Abstract: A method and a computing device are provided for video coding. The method may include deriving parameter ? and parameter ? for a CCLM mode by using a predetermined number of neighboring reconstructed luma samples and chroma samples in a CU; and generating a final chroma predictor for the chroma samples of the CU by using the parameter ? and the parameter ?.

Abstract: Methods and devices for video decoding are provided. The method includes: receiving a control variable associated with the video block at a coding level, where the control variable enables adaptive switch between a plurality of motion vector refinement (MVR) offset sets, and the video block comprises first and second geometric partitions; receiving one or more syntax elements to determine a first MVR offset for the first geometric partition and a second MVR offset for the second geometric partition from a selected MVR offset set; obtaining a first motion vector (MV) and a second MV from a candidate list for the first and second geometric partitions; calculating a first refined MV and a second refined MV based on the first and second MVs and the first and second MVR offsets; and obtaining prediction samples for the video block based on the first and second refined MVs.

Abstract: A method of decoding a video signal, apparatus, and a non-transitory computer-readable storage medium are provided. The method includes obtaining a video block from the video signal, obtaining spatial neighboring blocks based on the video block, obtaining up to one left non-scaled motion vector predictor (MVP) based on the multiple left spatial neighboring blocks, obtaining up to one above non-scaled MVP based on the multiple above spatial neighboring blocks, deriving, at the decoder and by reducing possibility of selecting scaled MVPs derived from the spatial neighboring blocks, an MVP candidate list based on the video block, the multiple left spatial neighboring blocks, the multiple above spatial neighboring blocks, receiving a best MVP based on the MVP candidate list, and obtaining a prediction signal of the video block based on the best MVP.

Abstract: An intelligent identification and warning method for an uncertain object of a production line in a digital twin environment, includes: establishing a model library for uncertain physical objects from a non-production line system; adding attribute data to the uncertain physical objects from the non-production line system; importing an established model library and added attribute data for the uncertain physical objects from the non-production line system into a model library of an existing DT production line system; performing auto-detection on an uncertain physical object entering a production line system; performing auto-detection on an actual size of the uncertain physical object entering the production line system; warning a danger for an unsafe object by means of voice prompting, system alarming and information pushing; matching a corresponding three-dimensional (3D) model in the established model library for a safe object; and loading a matched 3D model to the DT production line system.

Abstract: An intervertebral fusion cage (1). The intervertebral fusion cage (1) is provided with a filler hole (11), which runs through both ends of the intervertebral fusion cage (1), and a plurality of pore areas (14) with spacings are provided on a side face of the intervertebral fusion cage (1). By means of a reasonable arrangement of the pore areas (14), a spacing is provided between the adjacent pore areas (14) so as to ensure that the intervertebral fusion cage (1) has a sufficient strength while having a predetermined elastic modulus, thereby preventing the intervertebral fusion cage (1) from being cracked or even broken when being subjected to an external force, which facilities solution of a technical problem of an insufficient strength of an intervertebral fusion cage (1) due to pore structures in the prior art.

Abstract: An intelligent identification and warning method for an uncertain object of a production line in a digital twin environment, includes: establishing a model library for uncertain physical objects from a non-production line system; adding attribute data to the uncertain physical objects from the non-production line system; importing an established model library and added attribute data for the uncertain physical objects from the non-production line system into a model library of an existing DT production line system; performing auto-detection on an uncertain physical object entering a production line system; performing auto-detection on an actual size of the uncertain physical object entering the production line system; warning a danger for an unsafe object by means of voice prompting, system alarming and information pushing; matching a corresponding three-dimensional (3D) model in the established model library for a safe object; and loading a matched 3D model to the DT production line system.

Abstract: An intelligent material completeness detection and configuration method based on digital twin and augmented reality (AR) includes: constructing a digital twin model base and knowledge base of an incomplete material; importing the digital twin model base and knowledge base of the incomplete material respectively into a model database and a knowledge database in a digital twin system database; sending materials to be detected into a vision-based material completeness detection platform, sorting out an incomplete material, acquiring corresponding data, and importing the data into an incomplete material information database; performing, based on an AR device, perception and reconstruction of incomplete material configuration; matching a configuration plan of the incomplete material in a digital twin relational database, and performing a virtual-real fusion in the AR device; and allowing, a worker to rapidly and accurately find a location and problem type of the incomplete material and configuration the incomplete

Abstract: A circuit for avoiding channel interference, including a Wireless Fidelity (Wi-Fi) chip and at least one first single-pole multi-throw switch, where a movable end of the first single-pole multi-throw switch is connected to a signal transmit pin of the Wi-Fi chip; one non-movable end of the first single-pole multi-throw switch is connected to a first signal transmit tributary while another is connected to a second signal transmit tributary; and when the Wi-Fi chip determines that a first channel and a second channel interfere with each other, the movable end of the first single-pole multi-throw switch is controlled to connect to the second non-movable end of the first single-pole multi-throw switch, where the first channel is a wireless local area network channel, and the second channel is different from the wireless local area network channel.

Abstract: A circuit for avoiding channel interference, including a Wireless Fidelity (Wi-Fi) chip and at least one first single-pole multi-throw switch, where a movable end of the first single-pole multi-throw switch is connected to a signal transmit pin of the Wi-Fi chip; one non-movable end of the first single-pole multi-throw switch is connected to a first signal transmit tributary while another is connected to a second signal transmit tributary; and when the Wi-Fi chip determines that a first channel and a second channel interfere with each other, the movable end of the first single-pole multi-throw switch is controlled to connect to the second non-movable end of the first single-pole multi-throw switch, where the first channel is a wireless local area network channel, and the second channel is different from the wireless local area network channel.