Abstract: A video decoding method according to the present invention may comprise: a step for dividing a coding block into a first partition and a second partition; a step for deriving a merge candidate list for the coding block; a step for determining a first merge candidate and a second merge candidate by using the merge candidate list; a step for deriving a first prediction sample and a second prediction sample on the basis of first motion information on the first merge candidate and second motion information on the second merge candidate; and a step for obtaining a third prediction sample for the coding block on the basis of the first prediction sample and the second prediction sample.

Abstract: Embodiments of the present disclosure provide a solution for video processing. A method for video processing is proposed. The method comprises: applying, during a conversion between a target video block of a video and a bitstream of the video, at least one refinement process to the target video block based on a cost. The cost depends on a plurality of reference samples corresponding to the target video block and a plurality of further samples corresponding to a template of the target video block. The method further comprises: performing the conversion between the target video block and the bitstream. Compared with the conventional solution, the proposed method can advantageously improve the coding effectiveness and coding efficiency.

Abstract: The technology disclosed relates to a method for tracking inventory items including dividing an area of real space into a plurality of cells and identifying inventory items and their locations in the area of real space using sequences of images produced by at least two sensors. The identifying of inventory items further includes comparing a score for the particular inventory item having a location matching a particular cell and based on one or more counts of inventory events, and a second threshold, and accepting or rejecting the particular inventory item as the predicted inventory item in dependence on whether the score is above the second threshold. In response to the identification of the inventory items, the method also includes determining, for a particular inventory item matched with a particular cell, whether a count of the particular inventory item is below a third threshold for re-stocking the particular inventory item.

Abstract: Systems and techniques are provided for caching misaligned pixel tiles. A method includes determining a first codec region including a first region of a frame; determining whether pixels of a first version of a pixel tile were stored in a cache while coding blocks from a second codec region, the pixel tile corresponding to a location within the frame; based on whether the pixels were stored in the cache, determining whether to read the first version of the pixel tile from the cache or retrieve a second version of the pixel tile from a memory device, the second version of the pixel tile including pixels from the first codec region that are not in the first version of the pixel tile; and coding a block based on the first version of the pixel tile read from the cache or second version of the pixel tile retrieved from the memory device.

Abstract: An image decoding method performed by a decoding device according to the present disclosure comprises the steps of: obtaining motion prediction information relating to a current block from a bitstream; generating an affine MVP candidate list for the current block; deriving CPMVPs for CPs of the current block on the basis of the affine MVP candidate list; deriving CPMVDs for the CPs of the current block on the basis of the motion prediction information; deriving CPMVs for the CPs of the current block on the basis of the CPMVPs and the CPMVDs; and deriving prediction samples for the current block on the basis of the CPMVs.

Abstract: A video bitstream including coded information of a current block in a current picture is received. The coded information includes prediction samples of the current block. The prediction samples are obtained by a matrix multiplication of a matrix of coefficients and reference samples of the current block. A transform set is determined for the current block based on which of a subset of intra prediction modes is applied to the current block when one of the subset of the intra prediction modes is applied to the current block. The subset of intra prediction modes is derived based on the prediction samples of the current block. The current block is reconstructed based on the prediction samples and the transform set.

Abstract: A method for image generation, preferably including: generating a set of mission parameters for a UAV mission of the UAV associated with aerial scanning of a region of interest; controlling the UAV to perform the mission; generating an image subassembly corresponding to the mission; and/or rendering the image subassembly at a display.

Abstract: Several techniques for video encoding and video decoding are described. One example method includes performing a conversion between a subpicture in a video picture of a video and a bitstream of the video according to a rule. The rule specifies that, in in case a subpicture is treated as a video picture for the conversion, a cross-layer alignment restriction is applied to less than all of the multiple layers including a current layer that includes the subpicture and a subset of layers associated with the current layer.

Abstract: Method, apparatus and systems are disclosed. In one embodiment, a method of decoding includes obtaining a sub-block based motion prediction signal for a current block of the video; obtaining one or more spatial gradients of the sub-block based motion prediction signal or one or more motion vector difference values; obtaining a refinement signal for the current block based on the one or more obtained spatial gradients or the one or more obtained motion vector difference values; obtaining a refined motion prediction signal for the current block based on the sub-block based motion prediction signal and the refinement signal; and decoding the current block based on the refined motion prediction signal.

Abstract: A flipping or non-flipping type of each BVP candidate in a candidate list may require correct classification/identification, for example, for correct reordering and accurate refinement A block vector predictor (BVP) candidate list may be adjusted to provide a more accurate prediction of a block vector (BV). A coder (e.g., encoder or decoder) may determine a final candidate list, for example, by pruning invalid candidates.

Abstract: An image coding method includes: deriving a candidate for a motion vector predictor from a co-located motion vector; adding the candidate to a list; selecting the motion vector predictor from the list; and coding a current block and coding a current motion vector, wherein the deriving includes: deriving the candidate by a first derivation scheme in the case of determining that each of a current reference picture and a co-located reference picture is a long-term reference picture; and deriving the candidate by a second derivation scheme in the case of determining that each of the current reference picture and the co-located reference picture is a short-term reference picture.

Abstract: An image decoding/encoding method and device according to the present disclosure may: derive a motion vector for the current block on the basis of a merge inter mode; correct the motion vector of the current block; generate a first prediction block in a first direction and a second prediction block in a second direction, on the basis of the motion vector of the current block; and generate a prediction block for the current block on the basis of the first prediction block and the second prediction block. The motion vector of the current block includes a first motion vector in the first direction and a second motion vector in the second direction, wherein the first motion vector may be derived on the basis of the first inter-prediction mode and the second motion vector may be derived on the basis of the second inter-prediction mode.

Abstract: An image encoding/decoding method and apparatus for performing representative sample-based intra prediction are provided. An image decoding method may comprise deriving an intra prediction mode of a current block, configuring a reference sample of the current block, and performing intra prediction for the current block based on the intra prediction mode and the reference sample, wherein the intra prediction is representative sample-based prediction.

Abstract: An image decoding method includes: acquiring, from a bitstream, luma weight L0 flag information indicating whether there is an L0 prediction-related weight factor and luma weight L1 flag information indicating whether there is an L1 prediction-related weight factor; determining to apply decoder-side motion vector refinement (DMVR) to an L0 motion vector and L1 motion vector for a current block, when the luma weight L0 flag information and the luma weight L1 flag information are both zero; when it has been determined to apply DMVR, deriving a refined L0 motion vector and a refined L1 motion vector by applying the DMVR to the current block; deriving prediction samples for the current block on the basis of L0 prediction using the refined L0 motion vector and L1 prediction using the refined L1 motion vector; and generating reconstruction samples for the current block on the basis of the prediction samples.

Abstract: An apparatus directed to improvements to motion coding for vertices in an inter-coded basemesh frame is provided. The apparatus receives a compressed bitstream including deduplicate method information and a syntax element, wherein the deduplicate method information indicates whether duplicate vertex information for identifying duplicate vertices is present in the compressed bitstream, the syntax element indicates whether a flag for a duplicate vertex in a submesh frame is present in the compressed bitstream, and the flag indicates whether motion information for the duplicate vertex in the submesh frame is present in the compressed bitstream. If the syntax element indicates that the flag is present in the compressed bitstream, the deduplicate method information indicates that duplicate vertex information for identifying duplicate vertices is not present in the compressed bitstream.

Abstract: The present invention is about an image encoding/decoding method and apparatus. According to present invention, a method of decoding an image, the method comprising, loading information of a neighboring block of a current block; decoding a current block using the loaded information of the neighboring block; and saving information of the current block that is decoded.

Abstract: Systems and methods for performing motion vector prediction for video coding are disclosed. A motion vector predictor is determined based at least in part on motion information associated with a selected motion vector predictor origin and offset values corresponding to a selected sampling point. The sampling point is specified according to a set of direction and distance on a sampling map for the motion vector predictor origin.

Abstract: A method of encoding video data by an electronic device is provided. The method receives the video data including at least one image frame, each including one or more regions. The method signals a first affine flag in a sequence parameter set (SPS) associated with the at least one image frame when an affine mode including affine tools is enabled, and determines that a second affine flag is signaled in the SPS when the first affine flag is equal to one. The method determines that a third affine flag corresponding to an affine prediction refinement with optical flow (PROF) mode is signaled in a slice header associated with a specific region in a specific image frame when the second affine flag is equal to one. The method reconstructs the specific region based on first candidate modes, including the affine PROF mode, when the third affine flag is equal to zero.

Abstract: The present invention discloses a method and apparatus for encoding or decoding a video signal. The method for processing a video signal according to the present invention uses a merging mode in which prediction information on a neighbor unit is used instead of transmitting prediction information on the present unit, so as to improve coding efficiency. In this case, the number of available candidate units for merging among the units in a predetermined position is determined, and information for the merging mode is acquired on the basis of the number of the available candidate units for merging. The unit to be merged is determined using the information for the merging mode, and prediction information on the unit to be merged is acquired. The prediction value for the present unit is acquired using the prediction information on the unit to be merged, and the present unit is restored using the acquired prediction value.

Abstract: The present disclosure relates to an image decoding and encoding method which can efficiently perform inter-prediction by applying a regular merge mode to the current block on the basis of the case in which an MMVD mode, a merge sub-block mode, a CIIP mode, and a partitioning mode, in which prediction is performed by dividing the current block into two partitions, are not available for the current block.