81results about How to "Improve coding efficiency" patented technology

The invention provides a double-stream video encoding and decoding method, device and equipment and a storage medium, relates to the technical field of video encoding and decoding, and solves the problem that the video real-time requirement cannot be met due to low efficiency when an image with an Alpha channel is encoded in the related technology. According to the scheme, the video image is asynchronously collected to separate the Alpha channel information and the RGB channel information, and the Alpha channel information and the RGB channel information are asynchronously coded to generate different code streams, so that the coding requirement of a transparent image layer synthesis scene is supported; and asynchronous synthesis and artifact elimination processing are carried out on the received code stream at the decoding end side to recover the original video image, so that the asynchronous coding scheme adapted to the coding end side can effectively improve the coding efficiency compared with a synchronous coding scheme, and the coding efficiency is improved. Therefore, the actual system frame rate can reach the maximum frame rate in the current scene, and the coding transmission application of the video data is facilitated.

The present disclosure provides a video frame filtering method and device, electronic equipment and storage medium, belonging to the technical field of computer. The method comprises: for any video frame in a video frame queue, determining a plurality of reference video frames of the video frame from the video frame queue; in the case that the number of idle memory in the idle memory pool is not less than the first number, covering the data in the first memory in the idle memory pool with the video frame and at least one reference video frame, the idle memory in the idle memory pool being used to store the encoded video frames in the video frame queue in a pyramid structure; filtering the video frame based on the video frame in the first memory and the video frame in the second memory, the second memory being used to store at least one reference video frame in a pyramid structure. The above scheme can reduce the additional memory overhead by multiplexing the idle memory in the idle memory pool, avoiding frequent memory allocation, and thus improving the encoding efficiency of the video.

The embodiment of the application discloses a kind of based on wavefront parallel processing to the method, device, storage medium and computer equipment of image H.264 encoding, it is related to image processing field.The application is processed adjacent macroblock line by double encoder parallelly, and respectively first buffer and second buffer are written to encoding bit stream.In macroblock line encoding completion, first buffer remaining bit stream and entropy encoding remaining bit stream are merged in real time, if the length after merging is less than 8 integer multiples, then appropriate bit stream is dynamically taken from the head of second buffer and spliced, complete code stream in line with H.264 standard is generated and outputed.After encoding is completed, the minimum splicing length is used as the offset of second buffer, continue to output byte stream, and the encoding of next macroblock line is started.The application only needs double macroblock line buffer, significantly improves the encoding speed, reduces memory occupation, and does not need to modify decoder, and compatibility is strong.

The application provides a video coding quantization method, device, equipment and computer readable storage medium. The method comprises the following steps: obtaining a to-be-coded video frame, performing block processing and transformation processing on the to-be-coded video frame to obtain transformed video frame data; obtaining frame attribute information of the to-be-coded video frame; determining a quantization mode of the to-be-coded video frame based on the frame attribute information of the to-be-coded video frame, wherein the quantization mode is one of dependent quantization and independent quantization, wherein the dependent quantization needs to depend on the quantization result before the current to-be-quantized coefficient, and the independent quantization does not need to depend on the quantization result before the current to-be-quantized coefficient; and performing quantization processing on the transformed video frame data based on the quantization mode of the to-be-coded video frame to obtain a quantization result. Through the application, the quantization mode can be determined based on the frame attribute information of the video frame, and the quantization flexibility is improved.

The present disclosure relates to a coding method, device, electronic equipment and storage medium. The decoding method comprises: writing a motion vector index corresponding to a target motion vector, an offset direction index corresponding to a target offset direction, an offset step index corresponding to a target offset step, and a multi-function index into a coding bitstream corresponding to an image frame; the offset direction index is used to indicate that the offset direction is a horizontal X-axis direction or a vertical Y-axis direction; wherein, in the case that the prediction direction of the current coding unit is bidirectional, the multi-function index is used to represent a candidate coding unit index; in the case that the prediction direction of the current coding unit is unidirectional, the multi-function index is used to represent the positive or negative direction of the X-axis or Y-axis in the offset direction. The method can effectively reduce the influence of MMVD optimization on decoder parallelism and improve decoding efficiency.

A video encoding and decoding method, apparatus, and medium are provided. An example method of video decoding includes receiving a video bitstream including a plurality of frames, the plurality of frames including a current frame; and identifying a primary reference frame for context initialization of the current frame. The method further includes identifying a reference frame of the current frame based on the primary reference frame, and reconstructing the current frame by applying a cross component sample offset (CCSO) mode using the reference frame.

The encoding device (100) has a circuit and a memory connected to the circuit, and the circuit performs, in operation, a process of deciding a boundary strength (S311) for controlling whether or not to perform deblocking filter processing for a block boundary of a generated reconstructed image. The decided process includes a process of setting the boundary strength to a second value in a case where encoding modes of one of a current block and a neighboring block of the current block and an encoding mode of the other are different from each other, the encoding modes of the one and the other being one of an intra block copy mode, a palette mode, and an inter mode, the setting process being performed in a case where the current block is a luma block, and not being performed in a case where the current block is a chroma block.

The invention relates to a coding and decoding device, a coding and decoding method, a bit stream transmission device and a storage medium. This encoding device is provided with: a circuit that, during operation, designs each of a plurality of sub-pictures included in a picture, encodes configuration information indicating the configuration of each of the plurality of sub-pictures included in the picture, and stores the encoded configuration information; the circuit encodes each of the plurality of sub-pictures, the circuit, in action, designs each of the plurality of sub-pictures such that at least one pixel contained in each sub-picture is contained in the same consistent cropping window in the picture, conditions for designing the plurality of sub-pictures include that an upper end of each of the plurality of sub-pictures is located above a lower end of the consistent clipping window.

The encoding device, the decoding device, and the non-transitory computer-readable medium. The decision-making process includes: a first process performed when the current block is a luma block, determining whether a condition is met, wherein the encoding mode of the current block is different from the encoding mode of the adjacent blocks, and the encoding mode of the current block and the encoding mode of the adjacent blocks are one of three encoding modes, namely intra-block copy mode, palette mode, and inter-frame mode, and determining the boundary strength as a first value or a second value based on the determination of whether the condition is met; and a second process performed when the current block is a chroma block, determining the boundary strength as a first value regardless of whether the condition is met, wherein in the determination of whether the condition is met, the encoding mode of the current block and the encoding mode of the adjacent blocks are one of intra-block copy mode and inter-frame mode.

Disclosed are an image decoding method, an image encoding method, and a recording medium storing a bitstream. The decoding method includes determining a search area for updating motion information of a current block; generating an SAD list including a plurality of SAD candidates for the search area; deriving change amount motion information of the current block based on the SAD candidates in the SAD list; and updating the motion information of the current block based on the change amount motion information, wherein, when a width and a height of the current block are greater than or equal to 8, the updating of the motion information of the current block based on the change amount motion information, the derivation of the change amount motion information is performed based on a comparison result between a reference SAD candidate and a predetermined threshold, the reference SAD candidate means an SAD candidate corresponding to a non-directional offset, and in a case where the reference SAD candidate is greater than or equal to the predetermined threshold, the derivation of the change amount motion information includes identifying an SAD candidate having a minimum value among the SAD candidates belonging to the SAD list; and determining the change amount motion information based on an offset corresponding to the identified SAD candidate.

This utility model belongs to the technical field of conveying devices, and particularly relates to a conveying mechanism for inverted inkjet printing of inkjet printers. It includes a frame, on which a belt conveyor is mounted. The belt conveyor includes a conveyor frame and a drive motor. The conveyor frame is located above the inkjet printer body with the printhead facing upward and extends in the left-right direction. Two transmission rollers are rotatably mounted on the left and right ends of the conveyor frame through bearings. One of the transmission rollers is driven by the drive motor. Two sets of conveyor belts are wound and connected between the two transmission rollers and spaced apart in the front-back direction. An isolation plate is provided on the conveyor frame and passes between each conveyor belt. The isolation plate has a printing nozzle corresponding to the printhead of the inkjet printer body.

The application discloses a data acquisition method and device, electronic equipment and storage medium. The method comprises: acquiring audio to be processed collected through a microphone array, the audio to be processed comprising multiple sentences of multi-channel audio; for each sentence of multi-channel audio, acquiring a phase difference feature between at least one group of specified channel audio as target data, the specified channel audio comprising at least two position-associated channel audios. For each sentence of multi-channel audio, the method performs phase difference calculation by incorporating the audio of at least two position-associated microphone channels, which can generate higher-dimensional phase information coverage on one hand, so that the DOA feature obtained after phase difference is more intensive, thereby helping to improve the accuracy of the DOA encoding result; on the other hand, since the position-associated microphone channel audio is used for phase difference calculation, data redundancy can be avoided, thereby helping to improve the efficiency of DOA encoding.

The present application relates to the technical field of data processing, and especially to an automatic coding intelligent agent control system and method for multi-task scenarios, comprising a data acquisition module, a coding processing module, a quality evaluation module, a strategy optimization module, an execution control module, a defect traceability module, a parameter correction module and an iterative optimization module; the quality evaluation module is used for calculating the quality deviation index of each process core quality index based on a unified feature vector; the strategy optimization module is used for optimizing each process parameter regulation strategy by fusing multi-source information. The present application breaks the limitation of traditional single process coding, effectively avoids cross-process data representation distortion, significantly improves the coding accuracy and data link integrity of multi-process linkage control; has the functions of integrating data coding, quality correlation and parameter iteration, effectively solves the problems of insufficient generalization and closed loop loss of traditional systems, and assists in realizing multi-process quality accurate control in the manufacturing scene, improving production stability and product consistency.

This application discloses an encoding method, a decoding method, an electronic device, and a readable storage medium, relating to the field of programmable logic controller (PLC) technology. The method includes: identifying instruction characteristics of an instruction; determining the instruction code type based on the instruction characteristics, wherein the instruction code type includes basic fixed-length instruction code, fixed extended instruction code, extended long instruction code, and variable-length instruction code; and filling the instruction code field of the instruction according to the instruction code type to obtain the target instruction code. This application solves the problem of low encoding efficiency in PLC instruction encoding methods and effectively improves decoding speed.

The invention relates to a video compression technology, in particular to an improvement of a local luminance compensation (LIC) technology contained in a predictive coding technology for improving the compression performance of a video encoder and a video decoder, and discloses a method for improving the compression performance of the video encoder and the compression performance of the video decoder, and particularly relates to the improvement of the local luminance compensation (LIC) technology contained in the predictive coding technology for improving the compression performance of the video encoder and the video decoder. A method for decoding an encoded video bitstream according to one embodiment of the present invention comprises the steps of: extracting information relating to local luminance compensation (LIC) of a current block currently being decoded from the bitstream, and obtaining LIC information from the extracted information; determining at least one linear model on the basis of the LIC information; generating a prediction sample of the current block by an LIC method using the linear model; and restoring the current block using the prediction sample, in which the linear model is defined by at least one first-order function or a second-order function.

The application provides a point cloud encoding method and device based on a prediction tree, equipment and a storage medium. The method comprises the following steps: obtaining a target point cloud, the target point cloud comprising N points; constructing a main prediction tree based on part of the main nodes in the N points; inserting the adjacent points of the main nodes in the remaining points into the main nodes to obtain a target prediction tree of the target point cloud for each main node in the main prediction tree; and encoding the target point cloud based on the target prediction tree. That is, the application takes the main nodes as the center, optimizes the connection relationship between the local points, and prevents the connection of points far away from each other. The target prediction tree obtained in this way realizes the optimal ordering of the local points, improves the construction accuracy of the target prediction tree. When prediction is performed based on the accurately constructed target prediction tree, the prediction accuracy of the target point cloud can be improved, and the encoding efficiency of the target point cloud is further improved.

Some aspects of the present disclosure provide a mesh processing method. The method includes receiving a bitstream including encoded information of a polygon mesh, the polygon mesh including a plurality of vertices connected into a plurality of polygon faces, the encoded information including dual connectivity information of the polygon mesh and a residual of a geometry predictor of the polygon mesh. The method further includes reconstructing at least a first connectivity of a first polygon face according to the dual connectivity information, the first connectivity of the first polygon face indicating how a first set of vertices of the plurality of vertices are connected to each other to form the first polygon face. In addition, the method includes triangulating the first polygon face into a first set of triangles, and determining first geometry information of the first set of vertices based on the first set of triangles.

The utility model discloses an integrated vision detection function's all -in -one inkjet printer relates to inkjet printer technical field, include: inkjet printer body, color touch -sensitive screen and front panel, AI vision sensor, rear bracket and front bracket, the outer wall of front panel is inlayed and installed electric slide rail, the output of electric slide rail is installed rear bracket, and the inner wall of rear bracket and front bracket is inlayed and installed clamping electric pole, the output of clamping electric pole is installed clamping block. The utility model discloses through being installed with vision detection mechanism, the interval between front bracket and rear bracket is adjusted to the appropriate position, then clamping electric pole work drives clamping block to remove, will utilize the clamping block in front bracket and rear bracket and fix the inkjet head, and electric slide rail can drive the position of front bracket and rear bracket and move up and down, adjusts the position of inkjet head according to different inkjet position.

The present application relates to an image encoding / decoding method, a video data transmission method and a storage medium. According to the present application, a picture decoding method implemented by a decoding device comprises the following steps: acquiring motion prediction information from a bitstream; generating an affine MVP candidate list comprising affine MVP candidates for a current block; deriving a CPMVP for each CP of the current block based on one of the affine MVP candidates comprised in the affine MVP candidate list; deriving a CPMVD for the CP of the current block based on information about the CPMVD of each CP comprised in the acquired motion prediction information; and deriving a CPMV for the CP of the current block based on the CPMVP and the CPMVD.

The application relates to a code spraying device and belongs to the technical field of battery manufacturing. The code spraying device comprises a cup separating device for separating a cup from a battery monomer; a conveying device arranged downstream of the cup separating device and used for receiving and conveying the battery monomer and the cup; a code spraying device used for spraying a two-dimensional code on the battery monomer conveyed by the conveying device; and a cup combining device arranged downstream of the conveying device and used for receiving the battery monomer and the cup and assembling the battery monomer and the cup. The code spraying device can realize automatic cup separation and assembly and has high code spraying efficiency.

This disclosure provides embodiments of a video encoding / decoding and display method, apparatus, electronic device, and computer-readable medium. One specific implementation of the method includes: splitting each video frame to be encoded to obtain a set of video frame blocks; determining a set of video frame block encoding channels that meet interrupt triggering conditions; performing key video frame block peak shifting processing on each video frame block to be encoded to obtain a set of key video frame encoding blocks and a set of channel delay encoding time differences; performing video encoding on each video frame block to be encoded to obtain a set of video frame block channel bitstreams; determining the decoding and splicing threads for the video frame block channel bitstream set to obtain a set of decoding and splicing threads; performing video frame block decoding and splicing on the video frame block channel bitstream set to obtain a decoded video; and performing video frame display processing on the decoded video. This implementation can improve the balance of the bitstream after video encoding, improve the stability and real-time performance of transmitted video, and reduce video transmission latency.

The present application relates to the technical field of code spraying path planning, and discloses a path planning method, device, equipment and medium for log pile code spraying, which comprises the following steps: collecting position information of the end face of each log in the log pile to be sprayed and corresponding diameter grade information; modeling the log pile to be sprayed into a dynamic layered network model; traversing the log nodes in the dynamic layered network model to generate a code spraying path; performing collision detection on the code spraying path, and optimizing the code spraying path according to the collision detection result; inputting the log code spraying sequence list corresponding to the optimized code spraying path to a code spraying device, and spraying codes according to the log code spraying sequence. The present application converts the log pile into a layered network model by combining the physical constraints of the log pile, traverses the log nodes, plans the code spraying path, embeds the collision detection logic, and dynamically optimizes the code spraying path, thereby replacing manual code spraying, reducing the time complexity of finding the optimal path, and improving the code spraying efficiency.

An image encoding / decoding method, a bit stream transmission method, and a computer-readable recording medium storing a bit stream are provided. An image decoding method according to the present disclosure comprises the steps of: acquiring a source picture timing information (SPTI) supplemental enhancement information (SEI) message; and reconstructing the image based on the SPTI SEI message, where the SPTI SEI message may include information about source picture timing for a picture associated with the SEI.

A video decoding method performed by a decoding apparatus according to the present document may comprise the steps of: obtaining, from a bitstream, information indicating a level value of a transform coefficient in a current block; selecting one Rice parameter look-up table for the information indicating the level value of the transform coefficient, from among a plurality of Rice parameter look-up tables; deriving a Rice parameter for the information indicating the level value of the transform coefficient on the basis of the selected Rice parameter look-up table; deriving a bin string for the information indicating the level value of the transform coefficient on the basis of the Rice parameter; and deriving the level value of the transform coefficient on the basis of the bin string.

The invention relates to an improved application method of an intra-frame prediction mode derivation (DIMD) technology at a decoder end and utilization of the improved application method of the intra-frame prediction mode derivation technology at the decoder end. A decoding method according to one embodiment of the present invention, as a decoding method for an encoded video bitstream, may comprise: a step for acquiring a first signal from the bitstream, the first signal indicating that an intra prediction method of a block currently being decoded is any one of decoder-side DIMD methods according to a histogram; a histogram generation step of generating at least one histogram including at least one amplitude value based on the at least one piece of directivity information; a histogram storage step of storing the generated at least one histogram for the current block; and a histogram merging step of reading at least one histogram stored for at least one previously decoded block adjacent to the current block, and generating a merged histogram on the basis of the at least one histogram; and an intra prediction step based on the merged histogram: generating intra prediction information of the block currently being decoded on the basis of the merged histogram.

The invention relates to a video compression technology, in particular to an improvement of a local luminance compensation (LIC) technology contained in a predictive coding technology for improving the compression performance of a video encoder and a video decoder, and discloses a method for improving the compression performance of the video encoder and the compression performance of the video decoder, and particularly relates to the improvement of the local luminance compensation (LIC) technology contained in the predictive coding technology for improving the compression performance of the video encoder and the video decoder. A method for decoding an encoded video bitstream, according to one embodiment of the present invention, may comprise: a step for acquiring, from the bitstream, at least one prediction vector for a current block that is currently being decoded; a step of determining at least one reference block on the basis of the prediction vector; a step of defining at least one of the following templates: a first template that takes the current block as a reference block and includes at least one pixel adjacent to the current block; the second template takes the reference block as a reference block and comprises at least one pixel adjacent to the reference block; a step of extracting parameter information related to an LIC with reference to at least one piece of pixel information derived from at least one of the first template and the second template; a step of determining at least one coefficient applied to a first filter on the basis of the parameter information; acquiring a filtering result value for the reference block by using the first filter to which the coefficient is applied; a step of generating a prediction sample for the current block on the basis of the filtering result value; and a step of restoring the current block using the prediction sample.

The application discloses a point cloud encoding method, a point cloud decoding method and a terminal, and belongs to the technical field of point cloud processing. The point cloud encoding method comprises the following steps: obtaining a first identification parameter of a first target point cloud to be encoded; and performing an encoding operation on the first target point cloud based on the first identification parameter. The encoding operation comprises at least one of the following: in the case that the first identification parameter is used to represent parallel encoding, performing geometric encoding and attribute prediction encoding on the first target point cloud in parallel to obtain an encoding result of the first target point cloud; and performing geometric prediction encoding on at least part of the to-be-encoded points of the first target point cloud. In the embodiment of the application, the geometric encoding and the attribute prediction encoding are performed on the first target point cloud in parallel based on the first identification parameter of the first target point cloud. By performing the geometric prediction encoding on at least part of the to-be-encoded points of the first target point cloud, the multi-tree encoding on all the to-be-encoded points of the first target point cloud is avoided.