Abstract: Disclosed is an image coding method, including: determining a coding mode of a coding block; and performing coding on the coding block using multiple coding modes, including performing coding on pixel sample segments in the coding block using one of the multiple coding modes. Further disclosed is an image decoding method, including: parsing bitstream data of a decoding block, and determining decoding modes of pixel sample segments of the decoding block; and performing hybrid decoding on the decoding block using multiple decoding modes, including performing decoding on the pixel sample segments of the decoding block using corresponding decoding modes. The technical scheme described above can fully exploit and utilize the characteristics of each coding image region in the image to improve the image compression performance.

Abstract: Provided are a method and device for coding an image, a method and device for decoding an image. The method for coding the image includes that: coding mode parameters and parameter groups of one coding block are divided into multiple types of coding mode parameters and parameter groups corresponding to the multiple types of coding mode parameters according to a specified rule respectively; Quantization Parameters (QPs) included in the multiple types of coding mode parameters are determined according to a preset target bit rate; a QP of the coding block is determined according to reconstruction quality for the coding block; a coding mode parameter to be used is selected from the multiple types of coding mode parameters according to the QP of the coding block, a parameter group corresponding to the selected coding mode parameter is set, and a QP difference is calculated; and the coding mode parameter, the parameter group used by the coding block and the QP difference are written into a video bitstream.

Abstract: The present disclosure provides picture encoding and decoding methods, picture encoding and decoding devices as well as a decoder and an encoder. The picture decoding method includes: parsing a video bitstream to obtain candidate reshaping parameters from a picture-layer and/or slice-layer data unit of the video bitstream, and determining a reshaping parameter used for reshaping a reconstructed picture according to the obtained candidate reshaping parameters; and reshaping the reconstructed picture by using the reshaping parameter. The reconstructed picture is a picture obtained by decoding the video bitstream before performing the reshaping.

Abstract: A method for implementing community federation is disclosed, including: establishing community federation containing information of a plurality of social networks (SN) of a user on a device, and configuring a processing policy of the community federation; and after logging on the community federation, the community federation managing a message according to the process policy. An apparatus for implementing community federation is also disclosed. Through the above-mentioned method and apparatus, it guarantees that the content data obtain sufficient sharing in the community federation, eliminates the “garden wall” among the communities, and enables the user personal information, the message content, the friend information, etc., to flow better and faster, and improves the user experience in the service application.

Abstract: An image coding method and apparatus and an image decoding method and apparatus are provided by the present document. The image coding method includes: implementing matching coding for pixels of an input video image to obtain one or more matching relationship parameters, herein the matching relationship parameters are parameters used in a process of constructing predicted values and/or reconstructed values of the pixels in the image; mapping the matching relationship parameters to obtain mapped values of the matching relationship parameters; and performing entropy coding on the mapped values of the matching relationship parameters. The present document addresses the problem existing in the conventional art which is caused by the direct implementation of entropy coding for matching relationship parameters and achieves a good data compression effect through entropy coding.

Abstract: Disclosed are an image encoding and decoding method, image processing device, and computer storage medium, comprising: entropy-encoding a plurality of replication parameters of a current encoding block according to their order after adjustment, to generate a video code stream comprising information of the plurality of replication parameters; said plurality of replication parameters comprising one or more types of replication parameter components. Parsing the video code stream, comprising the information of the plurality of replication parameters, of a decoding block; entropy-decoding said plurality of replication parameters to obtain binary code of said plurality of replication parameters; adjusting said binary code to obtain the values of said plurality of replication parameters; said plurality of replication parameters comprising one or more types of replication parameter components.

Abstract: Disclosed are an image coding and decoding methods, an image processing device, and a computer storage medium. The image coding method comprises: obtaining a dynamic range of a copy parameter of a current coding sampling value segment according to a size of a reference area; and coding the copy parameter according to the dynamic range to generate a video bitstream containing information about the size of the reference area and information about the copy parameter. The decoding method comprises: parsing a video bitstream to obtain a dynamic range of a copy parameter of a decoding sampling value segment; and decoding the copy parameter according to the dynamic range.

Abstract: Disclosed are a bitstream alignment and synchronous processing method, transmitting terminal, receiving terminal and communication system. The method includes: configuring, when multiple bitstreams are required to be aligned, by a transmitting terminal, alignment auxiliary information in the multiple bitstreams so as to store the same or transmit the same to a receiving terminal; and acquiring, by the receiving terminal, the multiple bitstreams, and synchronizing each of the bitstreams of a different standard according to the alignment auxiliary information carried in each of the bitstreams.

Abstract: Disclosed are an image encoding and decoding method, image processing device, and computer storage medium, comprising: when using one of a palette and a pixel-string encoding replication means to replicate the encoding of a currently encoded block, generating a new palette color according to the pixels of said currently encoded block; according to said new palette color and/or palette color candidate set shared by the palette and the pixel-string encoding replication means, generating the palette of said current encoded block; using said palette to replicate the encoding of the palette and the pixel string, and generate a video code stream comprising the replication means and replication parameters.

Abstract: A Personal Area Network (PN) management method is disclosed. The method includes that a PN manager is set for a PN to manage the PN. Correspondingly, a PN system is disclosed. By the method and system, a user can set a PN manager and managed PN equipment of his/her own PN according to his/her own needs, and when a large amount of equipment exists in the PN, some PN equipment in the PN can be conveniently, rapidly and effectively managed through the PN manager.

Abstract: Provided are a method and apparatus for managing a graded cipher. The method includes that: a corresponding relationship between different security grades and corresponding voice passwords is established, herein the voice password corresponding to each security grade in the corresponding relationship is a part or all of a preset voice password; and a voice password is received from a user, and the obtained corresponding relationship is searched for the security grade corresponding to the voice password matched with the received voice password.

Abstract: The present disclosure provides a method and device for image coding and a method and device for image decoding, and the method includes: a representative pixel set of a coding block is constructed, and information for constructing the representative pixel set is determined; predicted values of pixel samples in the coding block are constructed, a generation manner for the predicted values including: constructing the predicted values of the pixel samples according to reconstructed pixel samples in an image region outside the coding block and pixel values of the representative pixel set; and the information for constructing the representative pixel set and information for constructing the predicted values are coded and written into a video bitstream.

Abstract: An image coding method and apparatus, and an image decoding method and apparatus are provided. In the coding method, a scanning manner parameter of a coding block is determined, and the scanning manner parameter may include at least one of: a region indication parameter used for determining a scanning region of the coding block and a scanning indication parameter used for determining a scanning order of pixels in a scanning region of the coding block; predicted values of part or all of pixels in the coding block are determined according to the scanning manner parameter; and the coding block is coded according to the predicted values, and a coding result is written into a bitstream.

Abstract: Disclosed is an image coding method, including: determining a coding mode of a coding block; and performing coding on the coding block using multiple coding modes, including performing coding on pixel sample segments in the coding block using one of the multiple coding modes. Further disclosed is an image decoding method, including: parsing bitstream data of a decoding block, and determining decoding modes of pixel sample segments of the decoding block; and performing hybrid decoding on the decoding block using multiple decoding modes, including performing decoding on the pixel sample segments of the decoding block using corresponding decoding modes. The technical scheme described above can fully exploit and utilize the characteristics of each coding image region in the image to improve the image compression performance.

Abstract: The predictive coding method includes: configuring types of slices; when coding a slice of an inter prediction type, configuring a picture where the slice is located as a reference picture for the slice, using a first coding scheme to code coding blocks employing an intra block copying (IBC) mode in the slice, and, when coding a slice of an intra prediction type, using a second coding scheme that is different from the first coding scheme to code coding blocks employing the IBC mode in the slice. Also provided are the corresponding decoding method, the corresponding coder/decoder, and the electronic device. Different coding schemes are employed to code coding blocks employing the IBC mode in the slice of an inter prediction type and those in the slice of an intra prediction type. Also provided are picture padding method and device.

Abstract: Method, device and electronic equipment for coding/decoding are provided. The coding method includes: restricting range information about Block copying Vector(s) (BV(s)) of an Intra Block Copying (IBC) mode is determined; and the restricting range information is written into a bitstream. In the present disclosure, the problem of reduction in data processing efficiency caused by the fact that a BV range may not be determined when using IBC in the related technology is solved, the data processing efficiency may be improved, and meanwhile, smooth implementation of a coding or decoding process may also be ensured.

Abstract: A device capability negotiation method includes receiving, by a first device, a multilayer video data request sent by a second device, and sending, by the first device, response information to the second device. The response information includes at least one of the following information types: decoding capability information needed for decoding a multilayer video code stream, decoding capability information needed for decoding various layers in the multilayer video code stream, and decoding capability information needed for decoding different output layer combinations in the multilayer video code stream. Also disclosed are a device capability negotiation apparatus, and a computer storage medium.

Abstract: With a method, apparatus and system for determining a terminal state, that a network side considers that a terminal is in an offline state by mistake can be avoided. The method includes: judging that no location update initiated by the terminal is received when a reachable timer corresponding to the terminal is expired, then sending paging message to the terminal, and triggering the terminal to initiate an interaction process with a network side to determine the terminal state. The apparatus comprises a judgment module, a sending module, and a state determination module. By adopting the method, apparatus and system, the network side can timely acquire the state of an MTC terminal, and will not consider that the terminal is in the offline state and delete the mobility context of the terminal by mistake.

Abstract: Provided are a method and device for sending media data. The method is realized by providing a media substitute node between a sender and a receiver. The method comprises: a media substitute node receives an original media data stream from a sender; the media substitute node acquires substitute data for substituting for the original media data stream within a designated interval; the media substitute node converts the format of the acquired substitute data into a media format which conforms to a media parameter of the original media data stream; and the media substitute node sends the converted substitute data to the receiver within the designated interval. The technical solution provided in the disclosure is adopted to solve the technical problems in the related art, such as the reduction in communication efficiency due to the need for re-negotiating a media parameter between substitute data and original media data.

Abstract: Provided are methods and devices for coding or decoding an image. The coding method includes that: one coding manner is selected for predictive or matching coding of a current CU, according to characteristics of pixel samples of the current CU and an adjacent CU of the current CU, from A predetermined predictive coding manners and matching coding manners including at least one predictive coding manner with different prediction characteristics and matching coding manners with mutually different matching characteristics, and the selected coding manner is determined as an optimal coding manner, wherein the A predictive coding manners and matching coding manners include: a predictive coding manner, matching coding manner 1, matching coding manner 2, . . . and matching coding manner A-1, and A is an integer more than or equal to 2; and predictive coding or matching coding is performed on the current CU by adopting the optimal coding manner.