VIDEO ENCODING METHOD AND DEVICE INVOLVING INTRA PREDICTION, AND VIDEO DECODING METHOD AND DEVICE
    22.
    发明申请
    VIDEO ENCODING METHOD AND DEVICE INVOLVING INTRA PREDICTION, AND VIDEO DECODING METHOD AND DEVICE 审中-公开
    视频编码方法和涉及内部预测的设备,以及视频解码方法和设备

    公开(公告)号:US20160295237A1

    公开(公告)日:2016-10-06

    申请号:US15185153

    申请日:2016-06-17

    CPC classification number: H04N19/593 H04N19/11 H04N19/176 H04N19/463

    Abstract: Provided is a video decoding method including determining a reference intra prediction mode, based on availability and a prediction mode of an adjacent block of a current block; determining a plurality of candidate intra prediction modes for the current block, based on the reference intra prediction mode; obtaining, from a bitstream, intra prediction data comprising information regarding an intra prediction mode of the current block; when the intra prediction data indicates that the current block is predicted according to one of the plurality of candidate intra prediction modes, selecting an intra prediction mode to be used in intra predicting the current block, wherein the intra prediction mode is from among the plurality of candidate intra prediction modes; and performing intra prediction on the current block, according to the selected intra prediction mode.

    Abstract translation: 提供了一种视频解码方法,包括基于当前块的相邻块的可用性和预测模式来确定参考帧内预测模式; 基于参考帧内预测模式确定当前块的多个候选帧内预测模式; 从比特流获取包括关于当前块的帧内预测模式的信息的帧内预测数据; 当帧内预测数据表示根据多个候选帧内预测模式中的一个预测当前块时,选择在帧内预测模式中使用的帧内预测模式,其中帧内预测模式来自多个 候选帧内预测模式; 以及根据所选择的帧内预测模式对当前块执行帧内预测。

    METHOD AND DEVICE FOR ENCODING/DECODING MOTION VECTOR

    公开(公告)号:US20230054737A1

    公开(公告)日:2023-02-23

    申请号:US17971969

    申请日:2022-10-24

    Abstract: A motion vector encoding apparatus includes: a predictor configured to obtain motion vector predictor candidates of a plurality of predetermined motion vector resolutions by using a spatial candidate block and a temporal candidate block of a current block, and to determine motion vector predictor of the current block, a motion vector of the current block, and a motion vector resolution of the current block by using the motion vector predictor candidates; and an encoder configured to encode information representing the motion vector predictor of the current block, a residual motion vector between the motion vector of the current block and the motion vector predictor of the current block, and information representing the motion vector resolution of the current block, wherein the plurality of predetermined motion vector resolutions include a resolution of a pixel unit that is greater than a resolution of one-pel unit.

    VIDEO ENCODING METHOD AND APPARATUS, AND VIDEO DECODING METHOD AND APPARATUS

    公开(公告)号:US20180359469A1

    公开(公告)日:2018-12-13

    申请号:US15778681

    申请日:2016-11-22

    Abstract: Provided are methods and apparatuses for encoding and decoding a coding unit of a picture outline. An image decoding method includes obtaining a prediction mode and prediction information of a current block included in a current image, from a bitstream; reconstructing the current block based on at least one of the prediction mode and the prediction information of the current block; when the prediction mode of the current block is a first prediction mode, obtaining a prediction candidate related to a second prediction mode by performing prediction according to the second prediction mode based on the reconstructed current block; and reconstructing an adjacent block reconstructed after the current block by using the prediction candidate related to the second prediction mode.

    METHOD FOR ENCODING/DECODING IMAGE AND DEVICE THEREFOR

    公开(公告)号:US20180324441A1

    公开(公告)日:2018-11-08

    申请号:US15775220

    申请日:2016-11-23

    Abstract: Provided is a video decoding method including determining a data unit for intra prediction from a video picture; obtaining, from a bitstream, intra prediction type information indicating whether to predict the data unit according to a first intra prediction type that predicts using predetermined prediction information or a second intra prediction type that predicts using data units adjacent to the data unit; determining a first data unit predicted according to the first intra prediction type and a second data unit predicted according to the second intra prediction type, based on the intra prediction type information obtained from the bitstream; generating a first prediction value with respect to the first data unit predicted according to the first intra prediction type by using the predetermined prediction information; and generating a second prediction value with respect to the second data unit predicted according to the second intra prediction type by using the data units adjacent to the data unit.

    ENCODING DEVICE, DECODING DEVICE, AND ENCODING METHOD AND DECODING METHOD THEREOF

    公开(公告)号:US20180220159A1

    公开(公告)日:2018-08-02

    申请号:US15744597

    申请日:2016-08-01

    Abstract: coefficient blocks in which the sign is assigned to the non-zero transform coefficients according to the generated plurality of groups of code candidates;a cost calculation unit for calculating a cost on the basis of a pixel value difference between pixel values of a plurality of pixels selected from among the generated candidate reconstruction blocks and pixel values of other pixels adjacent to the selected plurality of pixels; and a decoding unit for allocating predetermined different codewords to each of the plurality of code candidates based on the calculated cost, and determining a code of the non-zero transform coefficients of the selected plurality of pixels according to a candidate group to which a codeword corresponding to the parsed codeword is allocated. An encoding apparatus encoding a bitstream including an image frame is disclosed. The encoding apparatus comprises a selection unit for selecting a plurality of pixels including non-zero transform coefficients in a transform coefficient block constituting an image frame, an inverse transform unit for generating a plurality of groups of code candidates including combinations of codes assignable to the non-zero transform coefficients of the selected plurality of pixels and generating candidate reconstruction blocks by performing an inverse transform on each of the transform coefficient blocks in which the sign is assigned to the non-zero transform coefficients according to the generated plurality of groups of code candidates, a cost calculation unit for calculating a cost on the basis of a pixel value difference between pixel values of a plurality of pixels selected from among the generated candidate reconstruction blocks and pixel values of other pixels adjacent to the selected plurality of pixels and an encoding unit for assigning different predetermined codewords to a plurality of groups of code candidates on the basis of the calculated cost and encoding one codeword of the codewords into encoding information of non-zero transform coefficients of the selected plurality of pixels.

    VIDEO PROCESSING DEVICE AND METHOD
    29.
    发明申请
    VIDEO PROCESSING DEVICE AND METHOD 审中-公开
    视频处理设备和方法

    公开(公告)号:US20170048583A1

    公开(公告)日:2017-02-16

    申请号:US15306902

    申请日:2015-05-01

    Abstract: Provided is a video processing device and method capable of enhancing security of content included in a video, the video processing device including: a loader configured to load an original video; an encoder configured to generate an encoded video including a header and a payload by encoding the loaded original video; and a security information inserter configured to insert security information comprising information about a reproduction right of the video into the header or the payload.

    Abstract translation: 提供一种视频处理装置和方法,其能够增强包括在视频中的内容的安全性,所述视频处理装置包括:加载器,被配置为加载原始视频; 配置为通过对所加载的原始视频进行编码来生成包括头部和有效载荷的编码视频的编码器; 以及安全信息插入器,被配置为将包括关于视频的再现权限的信息的安全信息插入到报头或有效载荷中。

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