Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Lamxon Technology Building Materials Co.,ltd.

China Construction Science &technology Group Co., Ltd

Xinwei Li

Fuzheng Yang

Junyan Huo

Shuai Wan

Yanzhuo Ma

Ze Guo

Wenhan Qiao

Haixin Wang

Qiang Chen

Chihsu Tu

Qingyuan Chen

Qihong Ran

Zhonghua Zhang

Shilong Su

Zesen Fan

Yunxing Chang

Ruinan Tan

Rong Teng

A method for intra prediction includes: obtaining multiple previously reconstructed neighbouring blocks corresponding to a current processing block; determining prediction modes, that are signalled in a bitstream, corresponding to neighbouring blocks of the multiple previously reconstructed neighbouring blocks, to obtain multiple first prediction modes; if the multiple first prediction modes comprise at least two directional modes, taking directional modes comprised in the multiple first prediction modes as first prediction directions; performing, according to a preset operation rule, operation on multiple first prediction directions of the first prediction directions to obtain second prediction directions; obtaining a prediction mode set according to the second prediction directions and the multiple first prediction modes; and performing intra prediction on the current processing block based on the prediction mode set.

Methods for intra prediction, encoder and decoder

A transform method includes: determining a prediction mode parameter of a current block; determining a MIP parameter when the prediction mode parameter indicates that MIP is used for the current block to determine an intra prediction value; determining the intra prediction value of the current block according to the MIP parameter, and calculating a residual value between the current block and the intra prediction value; performing a first transform on the residual value to obtain a first coefficient matrix; determining a scanning order of LFNST coefficients used for the current block according to the MIP parameter when an LFNST is used for the current block; constructing an input coefficient matrix of the LFNST based on the first coefficient matrix according to the scanning order of LFNST coefficients; and performing an LFNST processing on the input coefficient matrix to obtain a transform coefficient matrix of the current block.

Transform method, encoder, decoder, and storage medium

A transform method and a decoder. The encoder determines a prediction mode parameter of a current block; determines a cross-component linear model (CCLM) parameter when the prediction mode parameter indicates that CCLM prediction is used for the current block to determine an intra prediction value; determines the intra prediction value of the current block according to the CCLM parameter, and calculates a residual value between the current block and the intra prediction value; determines a low-frequency non-separable transform (LFNST) transform kernel used for the current block according to the CCLM parameter, sets an LFNST index, and signals the LFNST index into a bitstream of a video, when LFNST is used for the current block; and transforms the residual value with the LFNST transform kernel.

Transform method and decoder

Chroma intra prediction methods and devices are provided. The method comprises parsing bitstream data corresponding to a current chroma block, and determining that a prediction mode corresponding to the current chroma block is DM; before determining a set of chroma prediction modes based on at least one modified candidate mode, acquiring a linear mode corresponding to the current chroma block; determining an intra prediction mode of the current chroma block from the set of chroma prediction modes, wherein the set of chroma prediction modes comprises at least one of the DM, LM, LM_T or LM_L, wherein when a luma prediction mode corresponding to the DM is one of a DC mode, Planar mode, VER mode or HOR mode, the set of modes comprises an angular mode with an index number 66; and determining a reconstructed value of the current chroma block according to the intra prediction mode.

Chroma intra prediction method and device

Disclosed in the implementations of the present disclosure are a mapping method, an encoder, a decoder, and a computer storage medium. The method may include: determining an intra prediction mode used at the time of encoding or decoding a current block; mapping, if the intra prediction mode is a MIP mode, the MIP mode to a first non-MIP mode; and mapping, if the intra prediction mode is a non-MIP mode, the non-MIP mode to a second MIP mode.

Mapping method, encoder, decoder and computer storage medium

Chroma intra prediction methods and devices are provided. The method comprising: parsing bitstream data corresponding to a current chroma block, and determining that a prediction mode corresponding to the current chroma block is DM; before determining a set of chroma prediction modes based on at least one modified candidate mode, acquiring a linear mode corresponding to the current chroma block from the bitstream data; determining an intra prediction mode of the current chroma block from the set of chroma prediction modes, wherein the set of chroma prediction modes comprises at least one of the DM, LM, LM_T or LM_L, wherein when a luma prediction mode corresponding to the DM is a DC mode or a planar mode, the set of chroma prediction modes comprises a diagonal angular mode with prediction direction index number 66, determining a reconstructed value of the current chroma block according to the intra prediction mode.

A prediction method, apparatus, and a computer storage medium for encoding, the method includes: acquiring reference samples adjacent to at least one side of a coding block; determining a reference point from the at least one side and determining reference sample positions corresponding to the at least one side according to a preset number of samples; deriving reference samples corresponding to the reference sample positions from the reference samples; and performing prediction on the coding block based on the derived reference samples.

Prediction method for decoding and apparatus, and computer storage medium

Disclosed are a transformation method, an encoder, a decoder, and a storage medium. The transformation method applied to an encoder includes: determining a prediction mode parameter of a current block; determining a Matrix-based Intra Prediction (MIP) parameter when the prediction mode parameter indicates that MIP is used for the current block to determine an intra prediction value; determining an intra prediction value of the current block according to the MIP parameter and calculating a residual value between the current block and the intra prediction value; determining a Low-Frequency Non-Separable Transform (LFNST) transform kernel used for the current block according to the MIP parameter when an LFNST is used for the current block, setting an LFNST index, and signalling the LFNST index in a video bitstream; and performing a transform processing on the residual value by using the LFNST transform kernel.

Transformation method, encoder, decoder, and storage medium

A method and an apparatus for controlling cruise of an unmanned air vehicle based on a prefabricated construction platform, a terminal device, and a computer readable storage medium are provided. The control method comprises: acquiring personnel information at the construction site; adjusting a cruise cycle of the unmanned air vehicle based on the personnel information; transmitting the imagery data of the construction site collected by the unmanned air vehicle to the prefabricated construction platform; and completing three-dimensional modeling on the prefabricated construction platform based on the imagery data, and displaying a resulting model. In this way, the technical problem that the existing cruise method of the unmanned air vehicle has a low level of intelligence is solved.

Method and apparatus for controlling cruise of unmanned air vehicle based on prefabricated construction platform

The present invention relates to the technical field of intelligent bathroom mirrors, and in particular to an ultrathin LED lamp mirror and a mirror cabinet. The ultrathin LED lamp mirror includes a plurality of power utilization modules. Each of the power utilization modules is connected to a driving block. The driving block is configured to supply power for each of the power utilization modules. The power utilization modules are LED lamp sections or heating films. An objective of the present invention is to provide an ultrathin LED lamp mirror. The plurality of power utilization modules are driven by the plurality of driving blocks, respectively, so that the plurality of driving blocks can be tiled in a lamp mirror body, thereby reducing a thickness of the lamp mirror and achieving the design of the ultrathin LED lamp mirror.

Ultrathin LED lamp mirror and mirror cabinet

A transform method applied to an encoder includes: determining a prediction mode parameter of a current block; determining a CCLM parameter when the prediction mode parameter indicates that CCLM is used for the current block to determine an intra prediction value; determining the intra prediction value of the current block according to the CCLM parameter and calculating a residual value between the current block and the intra prediction value; performing a first transform on the residual value to obtain a first coefficient matrix; determining an LFNST coefficient scanning order used for the current block according to the CCLM parameter when an LFNST is used for the current block; constructing an input coefficient matrix of the LFNST by using the first coefficient matrix according to the LFNST coefficient scanning order; and performing an LFNST processing on the input coefficient matrix to obtain a transform coefficient matrix of the current block.

The invention relates to the technical field of smart mirror cabinets, and in particular, to a compact multifunctional bathroom mirror cabinet, including a cabinet body and a cabinet door. The cabinet door is rotatably connected to the cabinet body. The cabinet door is provided with an electric module. The cabinet body is provided with a control module. The electric module is connected with a wireless receiving module, the control module is connected with a wireless transmitting module, and the wireless transmitting module is signal connected with the wireless receiving module. The present invention realizes signal transmission between the cabinet door and the cabinet body in a wireless manner, thereby achieving the effect of omitting some wires and module chips, and making the structure of the present invention more compact.

Compact multifunctional bathroom mirror cabinet

The present invention relates to the technical field of lamp mirrors, in particular to a cooperative synchronous control system for a plurality of power utilization modules, including the plurality of power utilization modules. The working mode is: B. when any power utilization module generates a control instruction, controlling, by a main controller of the power utilization module, the power utilization module according to the instruction to perform a related action, and transmitting the instruction through a wireless transmitter to the outside; and C. receiving, by other power utilization modules, the instruction respectively through a wireless receiver, analyzing the instruction by the main controller, and performing a related control action. A control group is formed by the plurality of power utilization modules, and any power utilization module can generate the control instruction to control all the power utilization modules, thereby flexibly realizing the cooperative synchronous work and simplifying control.

Cooperative synchronous control system for plurality of power utilization modules

Colour component prediction method is provided, which includes that: first reference sample set corresponding to colour component to be predicted of coding block in video image is acquired; when available sample number in first reference sample set is less than preset number, preset component value is taken as predicted value corresponding to the colour component to be predicted; when available sample number in first reference sample set is not less than preset number, first reference sample set is screened to obtain second reference sample set; when available sample number in second reference sample set is equal to preset number, model parameter is determined through second reference sample set, and prediction model corresponding to colour component to be predicted is obtained based on model parameter, prediction model is used for prediction processing of colour component to be predicted to obtain predicted value corresponding to colour component to be predicted.

Image component prediction method and device, and computer storage medium

Chroma intra prediction methods and devices are provided. The method comprises: decoding bitstream data corresponding to a current block, and determining that a prediction mode corresponding to a chroma component of the current block is a direct mode (DM); determining an intra prediction mode of a chroma component of the current block from a set of chroma prediction modes, wherein the set of chroma prediction modes comprises at least one of the DM derived modes, LM, LM_T or LM_L; and determining a reconstructed value of the current chroma block according to the intra prediction mode.

Growing community of inventors

Guangdong, China

Xinwei Li