Method and apparatus for encoding frequency transformed block using frequency mask table, and method and apparatus for encoding/decoding video using same
    52.
    发明授权
    Method and apparatus for encoding frequency transformed block using frequency mask table, and method and apparatus for encoding/decoding video using same 有权
    使用频率掩码表对频率变换块进行编码的方法和装置,以及使用其对视频进行编码/解码的方法和装置

    公开(公告)号:US09497461B2

    公开(公告)日:2016-11-15

    申请号:US13878352

    申请日:2011-09-30

    摘要: A video encoding/decoding apparatus including a video encoder for generating a prediction block, generating a residual block by subtracting the prediction block from the current block. The video encoder is for generating a frequency-transformed block by transforming and quantizing the residual block, generating a masked frequency-transformed block by masking the frequency-transformed block by using one or more frequency mask tables. The video encoder is for encoding information about a frequency mask table used for masking the masked frequency-transformed block. The apparatus includes a video decoder for extracting a masked quantized frequency coefficient string recorded in the bitstream. The video decoder is for generating a quantized frequency coefficient string by zero setting all quantized frequency coefficients at positions of no records in the bitstream from a masked quantized frequency coefficient string. The video decoder is for generating a quantized frequency-transformed block by inversely scanning the generated quantized frequency coefficient string.

    摘要翻译: 一种视频编码/解码装置,包括用于产生预测块的视频编码器,通过从当前块中减去预测块来产生残差块。 视频编码器用于通过变换和量化残差块来产生频率变换块,通过使用一个或多个频率掩码表掩蔽频率变换块来产生屏蔽的频率变换块。 视频编码器用于编码用于屏蔽被屏蔽的频率变换块的频谱表的信息。 该装置包括用于提取记录在比特流中的被掩蔽的量化频率系数串的视频解码器。 视频解码器用于通过将位流中没有记录的位置处的所有量化频率系数与掩蔽的量化频率系数串进行零设置来生成量化频率系数串。 视频解码器用于通过对生成的量化频率系数串进行逆扫描来生成量化的频率变换块。

    APPARATUS AND METHOD FOR IMAGE ENCODING/DECODING CONSIDERING IMPULSE SIGNAL
    56.
    发明申请
    APPARATUS AND METHOD FOR IMAGE ENCODING/DECODING CONSIDERING IMPULSE SIGNAL 有权
    考虑影像信号的图像编码/解码的装置和方法

    公开(公告)号:US20120106633A1

    公开(公告)日:2012-05-03

    申请号:US13002276

    申请日:2009-09-21

    IPC分类号: H04N7/32

    摘要: An apparatus and method for video encoding/decoding considering impulse signal are disclosed. The method for video encoding includes generating a predicted block from predicting a current block and subtracting the predicted block from the current block to generate an M×N residual block, and encoding an A×B residual block containing residual signals of an impulsive component in the M×N residual block to generate a bitstream. The apparatus and the method of the present disclosure improve coding efficiency by efficiently encoding or decoding the residual signals of the impulse component in encoding or decoding videos.

    摘要翻译: 公开了考虑脉冲信号的视频编码/解码的装置和方法。 视频编码方法包括从预测当前块中生成预测块并从当前块中减去预测块以生成M×N个残留块,并对包含脉冲成分的残留信号的A×B残差块进行编码 M×N个残差块来生成比特流。 本公开的装置和方法通过在编码或解码视频中有效地编码或解码脉冲分量的残差信号来提高编码效率。

    Method and apparatus for intra-prediction encoding/decoding
    57.
    发明授权
    Method and apparatus for intra-prediction encoding/decoding 有权
    用于帧内预测编码/解码的方法和装置

    公开(公告)号:US09451262B2

    公开(公告)日:2016-09-20

    申请号:US13391583

    申请日:2010-08-21

    CPC分类号: H04N19/11 H04N19/61 H04N19/70

    摘要: The present disclosure provides a method and apparatus for intra prediction encoding/decoding. The method includes: selecting an intra prediction mode of each block to be encoded; encoding a residual block generated through an intra prediction of the block according to the selected intra prediction mode to generate a coefficient bit; encoding a mode identifier for indicating the intra prediction mode according to the predetermined mode determination method to generate a mode bit; generating a bitstream including a mode bit field including a mode bit for one or more blocks and a coefficient bit field including a coefficient bit for the block; and including a mode bit field pointer for identifying the mode bit field in the bitstream. The present disclosure simplifies the process of selecting a prediction mode in a video compression to improve a compression speed and decreases a size of compressed data to improve the compression efficiency.

    摘要翻译: 本公开提供了一种用于帧内预测编码/解码的方法和装置。 该方法包括:选择要编码的每个块的帧内预测模式; 根据所选择的帧内预测模式对通过块的帧内预测生成的残差块进行编码,生成系数比特; 根据预定模式确定方法编码用于指示帧内预测模式的模式标识符,以生成模式比特; 生成包括包括一个或多个块的模式位的模式位字段和包括用于块的系数位的系数位字段的比特流; 并且包括用于识别比特流中的模式比特字段的模式比特字段指针。 本公开简化了在视频压缩中选择预测模式的过程,以提高压缩速度并减小压缩数据的大小以提高压缩效率。

    METHOD AND APPARATUS FOR INTRA-PREDICTION ENCODING/DECODING
    60.
    发明申请
    METHOD AND APPARATUS FOR INTRA-PREDICTION ENCODING/DECODING 有权
    用于预测编码/解码的方法和装置

    公开(公告)号:US20120201295A1

    公开(公告)日:2012-08-09

    申请号:US13391583

    申请日:2010-08-21

    IPC分类号: H04N7/32

    CPC分类号: H04N19/11 H04N19/61 H04N19/70

    摘要: The present disclosure provides a method and apparatus for intra prediction encoding/decoding. The method includes: selecting an intra prediction mode of each block to be encoded; encoding a residual block generated through an intra prediction of the block according to the selected intra prediction mode to generate a coefficient bit; encoding a mode identifier for indicating the intra prediction mode according to the predetermined mode determination method to generate a mode bit; generating a bitstream including a mode bit field including a mode bit for one or more blocks and a coefficient bit field including a coefficient bit for the block; and including a mode bit field pointer for identifying the mode bit field in the bitstream. The present disclosure simplifies the process of selecting a prediction mode in a video compression to improve a compression speed and decreases a size of compressed data to improve the compression efficiency.

    摘要翻译: 本公开提供了一种用于帧内预测编码/解码的方法和装置。 该方法包括:选择要编码的每个块的帧内预测模式; 根据所选择的帧内预测模式对通过块的帧内预测生成的残差块进行编码,生成系数比特; 根据预定模式确定方法编码用于指示帧内预测模式的模式标识符,以生成模式比特; 生成包括包括一个或多个块的模式位的模式位字段和包括用于块的系数位的系数位字段的比特流; 并且包括用于识别比特流中的模式比特字段的模式比特字段指针。 本公开简化了在视频压缩中选择预测模式的过程,以提高压缩速度并减小压缩数据的大小以提高压缩效率。