54results about How to "Increase encoding rate" patented technology

The invention discloses an SHVC (scalable high efficiency video coding) enhancement layer video coding method based on rapid prediction mode selection, mainly solving the problem of low code rate of an enhancement layer in SHVC standards. The SHVC enhancement layer video coding method includes: (1), determining a correlation between a basic layer and the enhancement layer, and acquiring a prediction mode probability statistical table by probability statistics; (2), selecting a rough candidate prediction mode of the enhancement layer according to the probability statistical table; (3) respectively coding previous n frames of a video sequence by means of the rough candidate prediction mode and the Yin method to acquire a rate-distortion performance estimator BD-PSNR; (4), adjusting the rough candidate prediction mode according to the rate-distortion performance estimator BD-PSNR to acquire a final candidate prediction mode; (5), coding the video sequence according to the final candidate prediction mode. The SHVC enhancement layer video coding method has the advantages that on the premise of guaranteeing video rate-distortion performance, coding difficulty is effectively lowered and coding time is reduced; the SHVC enhancement layer video coding method can be applied to real-time video application.

Embodiments of the present invention provide a data transmission method, a base station, and user equipment. The data transmission method includes: the base station determines the coding and modulation level and the number of physical resource block pairs, and selects from the first transmission block size table and the second transmission block size table A transport block size table to determine the corresponding transport block size TBS, so that the base station can increase the encoding rate when transmitting service data to the UE according to the TBS in the selected second transport block size table.

The invention discloses an FSE coding method and device, equipment and a storage medium, and the method comprises the steps: obtaining a to-be-coded symbol sequence corresponding to to-be-coded data, and determining a to-be-coded symbol of which the symbol state does not depend on other symbol states from the to-be-coded symbol sequence, so as to obtain a target to-be-coded symbol; splitting the to-be-coded symbol sequence based on the position of the target to-be-coded symbol in the to-be-coded symbol sequence to obtain a plurality of to-be-coded subsequences corresponding to the to-be-coded symbol sequence; and separately coding the plurality of sub-sequences to be coded to obtain the coded data to be coded. According to the method, the symbol with the unique state is taken as the splitting point to split the to-be-coded symbol sequence to obtain the plurality of subsequences, and compared with the mode that the whole to-be-coded symbol sequence is subjected to serial coding and splitting to realize parallel coding of the subsequences, the coding rate is improved.

The application discloses a video encoding method, device, computer equipment and storage medium, belonging to the technical field of audio and video. In this application, the current macroblock to be encoded is a static macroblock and the reference video frame is a forward reference P frame, based on the quality parameter of the static macroblock being greater than or equal to the quality parameter of the reference macroblock and the motion vector meeting the target condition, the static The coding mode of the macroblock is determined as the target coding mode, skipping the prediction and judgment of other coding modes, and there is no need to calculate the rate-distortion cost of intra-frame mode and inter-frame mode one by one, which can greatly improve the coding rate without losing coding efficiency .

The present invention discloses an information processing method and a terminal. The method may include: when sending information to be sent to a first terminal, determining the sending type of the information to be sent; The field to be encoded in the coded field and the information to be sent, the first fixed coded field is the coded field corresponding to the field other than the field to be coded in the information to be sent, and the field to be coded is a part of the information to be sent; Encoding, and reconstructing the first information to be sent according to the encoded field to be encoded and the first fixed encoding field; sending the first information to be sent to the first terminal.

The invention discloses a method and a related device for determining the coding cost of a coding unit. The method includes: determining a coding unit for predictive coding in an intra-frame prediction mode; and determining pixel gradient information corresponding to the coding unit, where the pixel gradient information includes pixel gradient variance , the pixel gradient variance is the variance of the image gradient of at least some pixels in the coding unit; the coding unit is divided and pre-judged according to the pixel gradient information; Determined as the second coding cost of the coding unit, the second coding cost is used to determine the division strategy of the coding tree unit corresponding to the coding unit, and the first coding cost is to use the current size of the coding unit as the size of the prediction unit to predict the coding unit The encoding cost obtained by encoding. In the technical scheme of the present invention, by ending the division of coding units in advance, the amount of calculation can be reduced, the coding complexity can be reduced, and the coding rate can be improved.

The invention discloses a dynamic control method of channel coding gain. The method comprises the steps of setting multiple optional channel coding rates corresponding to various numbers of code channels occupied by a user in advance; setting an accelerating threshold and a deceleration threshold for each optional channel coding rate under the corresponding code channel number; monitoring a target SIR (Signal Interference Ratio) of the user while the channel coding gain control is carried out; if the target SIR of the access user is always lower than the accelerating threshold of the current channel coding rate within a certain time, keeping the number of the occupied code channels invariable and increasing the channel coding rate so as to reduce the coding gain, increase the code resource utilization rate and provide a larger user bandwidth as much as possible under the precondition of assuring that the access user number is invariable; and if the target SIR of the access user is always higher than the decelerating threshold of the current channel coding rate within a certain time, keeping the number of the occupied code channels invariable and reducing the channel coding rate so as to assure the receiving performance of the user data.

The embodiment of the present invention discloses a method, device, device, and storage medium for determining a coding mode, wherein the method includes: dividing a coding unit under each coding standard into a coding unit under the next coding standard adjacent to the coding standard transformation unit, and calculate the coding cost of each transformation unit; sequentially perform cost optimization integration on the coding unit and transformation unit under the same coding specification, and obtain the overall coding mode under the optimal coding cost. The technical solution provided by the embodiment of the present invention enables the encoding cost to be minimized when the overall encoding mode is used for video encoding, ensures the adaptability of the video encoding mode adopted under different videos, reduces the computational overhead of video encoding, and further improves Video encoding rate.

The invention provides a construction method of partially polarized polar code, which belongs to communication technology field. The method cancels regularly unneeded polarization operation in polarization process of traditional polar code and deletes 1 that needn't participate in polarization operation in the original polarization matrix, which cancels polarization operation caused by raw information Bit in coding procedure. The generated polarization matrix after deleting 1 regularly is provided. On the one hand, partially polarized polar code generated by the method can improve error-correcting performance of finite length polar codes, and simplify polarization operation structure of polar code and reduce code-decode complexity of polar code; on the other hand, the polar code still can be proved to reach the channel capacity at infinity. A simulation result shows that the polar code has better BER performance than the traditional polar code.