84results about How to "Save bits" patented technology

There are provided methods and apparatus for multi-view video coding. A video encoder includes an encoder for encoding a block in a picture by choosing between temporal prediction and cross-view prediction to enable a prediction for the block. The picture is one of a set of pictures corresponding to multi-view video content and having different view points with respect to a same or similar scene. The picture represents one of the different view points. A high-level syntax is used to indicate the use of cross-view prediction for the block.

The invention discloses a resource allocation indicating method. The resource allocation indicating method includes the steps that equipment at a network side obtains the largest number N0 of RBs, which can be dispatched by user equipment (UE) and is allocated by the equipment at the network side, of the UE, according to the largest number N0 of RBs which can be allocated by the equipment at the network side to the UE and can be dispatched by the UE and the number NRB of resource blocks corresponding to bandwidths which are allocated by the equipment at the network side and can be used by all the UE, a resource indicated value (RIV) is calculated, and the calculated resource indicated value (RIV) is sent to the certain set of UE. Compared with the prior art, the number of bits used by resource indication can be saved, and signaling overheads are lowered.

Method, system and computer program product are provided for adaptively encoding in hardware, software or a combination thereof a series of still or partially still pictures using motion video encoding. A pre-encode statistics measurement unit is employed to derive statistics on each frame of the sequence of video frames to be encoded. The statistics are determinative of whether the frame comprises a still frame. If so, at least one controllable parameter to be used to encode the still frame is modified, and an encoding engine employs the at least one controllable parameter to encode the still frame so that pulsation artifacts are prevented between still frames of the series of still frames. Partial still picture encoding to prevent pulsation artifacts on a macroblock level is also addressed.

The present invention uses calcium base leituoshi stone ore as raw material, and adopts semi-dry artificial modification process including the steps: breaking clay mineral, adding 1%-5% sodium salt, uniformly mixing them, water-spraying, shearing, pressing, piling and ageing for 7-10 days, drying so as to obtain modified leituoshi stone. Said invention is simple in production method, convenient for operation, less in dosage of modifying agent and low in energy consumption and cost. The phi-600 reading value of drilling fluid prepared with modified leituoshi stone is greater than or equal to 60, mud-making rate is greater than or equal to 18 cu.m/t, filter loss is less than or equal to 13.5 ml and dynamic shear force is less than or equal to 1.2XPVPa. It is superior to sodium base bentonite in all the properties, and is applicable for drilling in the fields of petroleum industry, natural gas engineering, geologic drilling engineering and building engineering, etc.

The invention provides a GOP-level QP-Offset setting method, which belongs to the technical field of video processing, and particularly relates to a method for setting quantization parameters under all supporting random access (RA) structure conditions. The GOP-level QP-Offset setting method comprises the following steps of through analyzing the reference relationship between GOP under the RA structure, which has the transferred meaning of the effect strength of the current GOP on the following GOP, describing different importance of the GOP through effect strength attenuation factors of the GOP, and adopting the different importance of the GOP as the basis of GOP-level QP-Offset distribution. According to the GOP-level QP-Offset setting method, the time domain redundant information can be further eliminated on the basis of an original frame-level layering QP-Offset technology. The experiments on two platforms of HEVC and AVS2 show that without increasing time complexity, the bit is further saved, and the encoding performance is improved.

Embodiments of the present invention relate to a transmission method, base station and terminal for dynamically adjusting a beam set. The method comprises the steps of a base station sending first indication information to a terminal through a first layer of signaling, wherein the first indication information is used for indicating a first beam set; the base station sending second indication information to the terminal through a second layer of signaling, wherein the second indication information is used for indicating at least one beam in the first beam set; and the base station transmittingdata to the terminal through the at least one beam. According to the embodiment of the invention, the problem of signal attenuation caused by shielding can be solved.

This invention relates to an instruction method for reporting channel qualities of user devices including: a user device gets to know M, the system total CQI report sub-band number and N, the being reported CQI reported sub-band number to measure channel qualities on all sub-bands to determine N CQI sub-bands going to be reported and the CQI value and transmits the L long bit sequence for instruction to the base station, and the length is: L=[ log2CNM ] and transmits the CQI value on the sub-band going to be reported to the base station. Compared with the bit mapping method, this invention uses a short bit sequence to instruct the sub-band to be reported so as to reduce the information bit necessary for instructing band.

An H.264/AVC code rate control method based on active macroblock concealment comprises the following steps: distributing different target coding bits to a preconfigured ROI macroblock and an NROI macroblock according to the numbers of encoded video frame target bits; then during encoding of the NROI macroblock, under the premise of an H. 264/AVC standard rate distortion model, adding an active macroblock concealment mode, and performing mode selection and encoding according to a constructed rate distortion function; during encoding of the ROI macroblock, adopting an encoding method specified by H. 264/AVC standards to encode; after the encoding of the macroblocks is completed, starting code rate control of next macroblock. According to the method, when the active macroblock concealment mode is selected to encode, the current macroblock of an NROI does not need encoding, so that required bits are reduced; the saved bits are distributed to an uncoded ROI macroblock, so that the ROI macroblock acquires more bites, the encoding quality of the ROI is improved, and meanwhile, the visual quality is improved.

A technique is provided for adaptively encoding in hardware, software or a combination thereof a sequence of frames in real time, wherein one or more of the frames includes a random noise portion. The technique includes using statistics analysis to determine whether a current frame includes a random noise portion, and if so, to evaluate and dynamically encode each macroblock thereof based on activity level of the macroblock. Evaluating macroblock activity level includes determining whether its activity level exceeds a predefined threshold indicative of random noise. The macroblock is adaptively encoded by adjusting one or more coding parameters if the macroblock activity level is excessive and its target bitrate is low. For example, when the macroblock is within the random noise portion of the frame, the macroblock is biased towards being coded predictive and an adjusted quantization level is calculated to conserve bits used in encoding the macroblock, thereby moving encode bits from macroblocks within the random noise portion of the frame to macroblocks within the normal portion of the frame.

The invention discloses a pattern-based time division duplex/time division multiple access channel planning frame coding method, which mainly solves the problem of low coding efficiency of a conventional channel planning frame coding method. The method comprises the following steps of: (1) setting network nodes; (2) dividing a planning cycle; (3) distributing time slots in the planning cycle by a central node to obtain a distribution result of the time slots in the planning cycle; (4) generating uplink and downlink node patterns according to the time slot distribution result; (5) defining P code words according to the purposes of the time slots, and coding the P code words; and (6) generating uplink and downlink time slot mapping patterns according to the time slot distribution result, and combining the uplink and downlink node patterns with the uplink and downlink time slot patterns to complete planning frame coding. The method has the advantages of low planning frame coding length, low overhead of transmission of planning frames in a channel, high utilization rate of the channel and low requirement on equipment, and can be applied to the field of various local area networks and access networks adopting time division duplex/time division multiple access communication.

The invention provides an encoding and decoding method, device and equipment. The method comprises the steps: a plurality of peripheral matching blocks pointed by a pre-configuration angle are selected from peripheral blocks of a current block for any motion information angle prediction mode of the current block based on the pre-configuration angle of the motion information angle prediction mode,wherein the plurality of peripheral matching blocks at least comprise a first peripheral matching block and a second peripheral matching block to be traversed; for a first peripheral matching block and a second peripheral matching block to be traversed, if available motion information exists in the first peripheral matching block and the second peripheral matching block, when the motion information of the first peripheral matching block is different from the motion information of the second peripheral matching block, the first peripheral matching block and the second peripheral matching blockare traversed; finally, the motion information angle prediction mode are added to a motion information prediction mode candidate list of the current block. Through the scheme of the invention, the coding performance can be improved.

The invention relates to a method for reporting RSRP (Reference Signal Receiving Power), a terminal, a computer readable medium and a system for reporting RSRP (Reference Signal Receiving Power). Themethod includes the following steps that: a differential quantization function configured by a base station for a terminal by using RRC (Radio Resource Control ) signaling is received; differential operation is performed on adjacent RSRP measurement values based on the differential quantization function; and an operation result is reported to the base station. According to the method provided by the technical schemes of the invention, differential operation is performed on the adjacent RSRP measurement values, and therefore, the number of bits of differential quantization can be effectively reduced with system performance not affected, the bit overhead of reporting the RSRP measurement values can be reduced, and system efficiency can be improved.

A method of encoding a video bitstream implemented by a video encoder is disclosed. The method includes storing, in a memory of the video encoder, a set of less than five network abstraction layer (NAL) unit types available for video data; selecting, by a processor of the video encoder, a NAL unit type from the set of less than five NAL unit types for a picture from the video data; generating, by the processor of the video encoder, a video bitstream containing a NAL unit corresponding to the NAL unit type selected and containing an identifier identifying the NAL unit type selected; and transmitting, by a transmitter of the video encoder, the video bitstream toward a video decoder. A corresponding method of decoding the video bitstream is also disclosed.

The invention provides an encoding method, a decoding method, corresponding devices, electronic equipment and a storage medium, the encoding method comprises: determining identification information ofa block to be encoded according to first M quantization coefficients of the block to be encoded, M>=1, wherein the identification information is a first identifier or a second identifier, the first identifier is used for identifying that the first M quantization coefficients are all non-zero coefficients, the second identifier is used for identifying that the second M is a non-zero coefficient and the second identifier is used for identifying that a zero coefficient exists in the first M quantization coefficients, determining the context of the identification information, and encoding the identification information according to the context of the identification information, if the identification information is the first identification,encoding the value level of each quantization coefficient in the first M quantization coefficients, and encoding the run length run and the level of each non-zero coefficient in other quantization coefficients except the first M quantization coefficients, and if the identification information is the second identification, encoding the run and level of each non-zero quantization coefficient of the to-be-encoded block. Through the method provided by the embodiment of the invention, the code stream can be effectively saved.

The invention provides a decoding and encoding method, device and equipment. The method comprises the following steps: constructing a motion information prediction mode candidate list of a current block; selecting a target motion information prediction mode of the current block from the motion information prediction mode candidate list; if the target motion information prediction mode is a targetmotion information angle prediction mode, filling unavailable motion information in peripheral blocks of the current block; determining motion information of a current block according to motion information of a plurality of peripheral matching blocks pointed by a pre-configured angle of the target motion information angle prediction mode; and determining a prediction value of the current block according to the motion information of the current block. Through the scheme of the invention, the coding performance can be improved.

The embodiment of the invention relates to the technical field of encoding and decoding, and discloses an encoding method, a decoding method, corresponding device, electronic equipment and a storage medium, the encoding method comprises the following steps: determining identification information of a to-be-encoded block according to all quantization coefficients of the to-be-encoded block, whereinthe identification information is a first identification or a second identification, the first identifier is used for identifying that all quantization coefficients of the to-be-coded block are non-zero coefficients, and the second identifier is used for identifying that zero coefficients exist in all quantization coefficients of the to-be-coded block, determining the context of the identification information, encoding the identification information according to the context of the identification information, if the identification information is the first identification, encoding the value level of each quantization coefficient of the to-be-encoded block, and if the identification information is the second identification, encoding the run length run and level of each non-zero coefficient of the to-be-encoded block. Through the method provided by the embodiment of the invention, the code stream can be effectively saved.

The invention discloses an image searching method and a system, comprising the following steps: S1, respectively dividing a target image set and a meta image into curves; S2 extracting feature compactness from each region after segmentation; 3, store image information in that image set; S4, calculating Hamming distance between feature compactness of each region in the meta-image and feature compactness of each region in the target image set; S5 searches the resulting image set according to the Hamming distance. The invention has the beneficial effects that the data quantity of the feature descriptor of a single image region is reduced from several hundred K bytes to several K bytes according to the feature coding technology of low bit, low complexity and high accuracy of different featuretypes, thereby greatly reducing the storage cost and improving the search precision.