METHOD OF ENCODING AND DECODING MOTION MODEL PARAMETERS AND VIDEO ENCODING AND DECODING METHOD AND APPARATUS USING MOTION MODEL PARAMETERS
    1.
    发明申请
    METHOD OF ENCODING AND DECODING MOTION MODEL PARAMETERS AND VIDEO ENCODING AND DECODING METHOD AND APPARATUS USING MOTION MODEL PARAMETERS 审中-公开
    使用运动模型参数编码和解码运动模型参数和视频编码和解码方法和装置的方法

    公开(公告)号:US20080240247A1

    公开(公告)日:2008-10-02

    申请号:US12028846

    申请日:2008-02-11

    IPC分类号: H04N7/12

    摘要: Provided are a method of efficiently transmitting motion model parameters using temporal correlation between video frames and a video encoding and decoding method and apparatus, in which motion estimation and motion compensation are performed by generating a plurality of reference pictures that are motion-compensated using motion model parameters. Motion model parameters are encoded based on temporal correlation between motion vectors of representative points expressing the motion model parameters, global motion compensation is performed on a previous reference video frame using motion model parameters in order to generate a plurality of transformation reference pictures, and a current video frame is encoded using the plurality of transformation reference pictures.

    摘要翻译: 提供了一种使用视频帧之间的时间相关性和视频编码和解码方法和装置来有效地传输运动模型参数的方法,其中通过使用运动模型生成运动补偿的多个参考图像来执行运动估计和运动补偿 参数。 基于表示运动模型参数的代表点的运动矢量之间的时间相关性对运动模型参数进行编码,使用运动模型参数对先前的参考视频帧执行全局运动补偿,以便生成多个变换参考图片,以及电流 使用多个变换参考图片对视频帧进行编码。

    Motion compensation method and apparatus that sequentially use global motion compensation and local motion compensation, decoding method, video encoder, and video decoder
    2.
    发明授权
    Motion compensation method and apparatus that sequentially use global motion compensation and local motion compensation, decoding method, video encoder, and video decoder 失效
    依次使用全局运动补偿和局部运动补偿,解码方法,视频编码器和视频解码器的运动补偿方法和装置

    公开(公告)号:US08374244B2

    公开(公告)日:2013-02-12

    申请号:US11748537

    申请日:2007-05-15

    IPC分类号: H04N11/02

    摘要: A motion compensation method and apparatus that sequentially use global motion compensation and local motion compensation, a video decoding method, a video encoder, and a video decoder are provided. The motion compensation method includes extracting global motion information of a reference block, performing global motion compensation by applying the extracted global motion information to the reference block, extracting local motion information of the global motion-compensated reference block, and performing local motion compensation by applying the local motion information to the global motion-compensated reference block.

    摘要翻译: 提供了顺序地使用全局运动补偿和局部运动补偿的运动补偿方法和装置,视频解码方法,视频编码器和视频解码器。 运动补偿方法包括提取参考块的全局运动信息,通过将提取的全局运动信息应用于参考块来执行全局运动补偿,提取全局运动补偿参考块的局部运动信息,并通过应用来执行局部运动补偿 局部运动信息到全局运动补偿参考块。

    Image encoding and decoding method and apparatus using motion compensation filtering
    3.
    发明授权
    Image encoding and decoding method and apparatus using motion compensation filtering 有权
    使用运动补偿滤波的图像编码和解码方法和装置

    公开(公告)号:US08045813B2

    公开(公告)日:2011-10-25

    申请号:US11958493

    申请日:2007-12-18

    IPC分类号: G06K9/36 G06K9/40 G06K9/46

    CPC分类号: H04N19/82

    摘要: Provided are an image encoding method and apparatus for encoding image data, in which compression efficiency is further improved by filtering motion-compensated image data, thereby reducing errors with respect to original image data, and an image decoding method and apparatus for decoding encoded image data. A filter is generated using previously decoded surrounding pixels of a current frame and surrounding pixels of a reference frame, and prediction data is then filtered using the generated filter. Therefore, it is possible to decrease a size of residual data to be encoded.

    摘要翻译: 提供了一种用于对图像数据进行编码的图像编码方法和装置,其中通过对运动补偿图像数据进行滤波来进一步提高压缩效率,从而减少关于原始图像数据的误差,以及用于对编码图像数据进行解码的图像解码方法和装置 。 使用先前解码的当前帧的周围像素和参考帧的周围像素来生成滤波器,然后使用所生成的滤波器对预测数据进行滤波。 因此,可以减少要编码的残留数据的大小。

    IMAGE ENCODING AND DECODING METHOD AND APPARATUS USING MOTION COMPENSATION FILTERING
    4.
    发明申请
    IMAGE ENCODING AND DECODING METHOD AND APPARATUS USING MOTION COMPENSATION FILTERING 有权
    使用运动补偿滤波的图像编码和解码方法和装置

    公开(公告)号:US20080240592A1

    公开(公告)日:2008-10-02

    申请号:US11958493

    申请日:2007-12-18

    IPC分类号: G06K9/36

    CPC分类号: H04N19/82

    摘要: Provided are an image encoding method and apparatus for encoding image data, in which compression efficiency is further improved by filtering motion-compensated image data, thereby reducing errors with respect to original image data, and an image decoding method and apparatus for decoding encoded image data. A filter is generated using previously decoded surrounding pixels of a current frame and surrounding pixels of a reference frame, and prediction data is then filtered using the generated filter. Therefore, it is possible to decrease a size of residual data to be encoded.

    摘要翻译: 提供了一种用于对图像数据进行编码的图像编码方法和装置,其中通过对运动补偿图像数据进行滤波来进一步提高压缩效率,从而减少关于原始图像数据的误差,以及用于对编码图像数据进行解码的图像解码方法和装置 。 使用当前帧的先前解码的周围像素和参考帧的周围像素来生成滤波器,然后使用所生成的滤波器对预测数据进行滤波。 因此,可以减少要编码的残留数据的大小。

    Method for enhancing performance of residual prediction and video encoder and decoder using the same
    5.
    发明申请
    Method for enhancing performance of residual prediction and video encoder and decoder using the same 审中-公开
    用于增强残差预测性能的方法及使用其的视频编码器和解码器

    公开(公告)号:US20070047644A1

    公开(公告)日:2007-03-01

    申请号:US11508951

    申请日:2006-08-24

    IPC分类号: H04B1/66 H04N11/04

    摘要: A method and apparatus for enhancing the performance of residual prediction in a multi-layered video codec are provided. A residual prediction method includes calculating a first residual signal for a current layer block; calculating a second residual signal for a lower layer block corresponding to the current layer block; performing scaling by multiplying the second residual signal by a scaling factor; and calculating a difference between the first residual signal and the scaled second residual signal.

    摘要翻译: 提供了一种用于增强多层视频编解码器中的残差预测性能的方法和装置。 残差预测方法包括:计算当前层块的第一残差信号; 计算对应于当前层块的下层块的第二残差信号; 通过将所述第二残差信号乘以缩放因子来执行缩放; 以及计算所述第一残差信号和所述缩放的第二残差信号之间的差。

    Method for encoding digital audio using advanced psychoacoustic model and apparatus thereof
    6.
    发明授权
    Method for encoding digital audio using advanced psychoacoustic model and apparatus thereof 失效
    使用高级心理声学模型对其进行编码的方法及其装置

    公开(公告)号:US07523039B2

    公开(公告)日:2009-04-21

    申请号:US10652341

    申请日:2003-09-02

    申请人: Mathew Manu

    发明人: Mathew Manu

    IPC分类号: G10L19/00 G10L19/14 G10L19/02

    CPC分类号: G10L19/022 G10L19/0212

    摘要: A digital audio encoding method using an advanced psychoacoustic model is provided. The audio encoding method including determining the type of a window according to the characteristic of an input audio signal; generating a complex modified discrete cosine transform (CMDCT) spectrum from the input audio signal according to the determined window type; generating a fast Fourier transform (FFT) spectrum from the input audio signal, by using the determined window type; and performing a psychoacoustic model analysis by using the generated CMDCT spectrum and FFT spectrum.

    摘要翻译: 提供了一种使用高级心理声学模型的数字音频编码方法。 音频编码方法,包括根据输入音频信号的特性确定窗口的类型; 根据确定的窗口类型从输入音频信号生成复杂修正离散余弦变换(CMDCT)频谱; 通过使用确定的窗口类型从输入音频信号产生快速傅里叶变换(FFT)频谱; 并通过使用生成的CMDCT频谱和FFT频谱进行心理声学模型分析。

    METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE USING PIXEL-BASED CONTEXT MODEL
    7.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE USING PIXEL-BASED CONTEXT MODEL 审中-公开
    使用基于像素的语境模型编码和解码图像的方法和装置

    公开(公告)号:US20080232706A1

    公开(公告)日:2008-09-25

    申请号:US12030250

    申请日:2008-02-13

    IPC分类号: G06K9/36

    摘要: A method and apparatus for encoding and decoding an image are provided. The method includes selecting a context model by referring to previously encoded pixels that are adjacent to the current pixel for entropy-encoding a binary value of a pixel value of the current pixel, and entropy-encoding the binary value using the selected context model, thereby performing entropy-coding with high compression efficiency.

    摘要翻译: 提供了一种用于对图像进行编码和解码的方法和装置。 该方法包括通过参考与当前像素相邻的先前编码的像素来选择上下文模型,用于对当前像素的像素值的二进制值进行熵编码,并使用所选择的上下文模型对二进制值进行熵编码,从而 以高压缩效率进行熵编码。

    Audio decoding method and apparatus for reconstructing high frequency components with less computation
    8.
    发明授权
    Audio decoding method and apparatus for reconstructing high frequency components with less computation 失效
    音频解码方法和装置,用于以较少的计算重建高频分量

    公开(公告)号:US07444289B2

    公开(公告)日:2008-10-28

    申请号:US10652189

    申请日:2003-09-02

    IPC分类号: G10L19/00 G10L19/14 G10L13/00

    CPC分类号: G10L19/008 G10L21/038

    摘要: An audio decoding method and apparatus for reconstructing high frequency components with less computation are provided. The audio decoding apparatus includes a decoder, a channel similarity determination unit, a high frequency component generation unit, and an audio synthesizing unit. The audio decoding method generates high frequency components of frames while skipping every other frame for each channel signal; when right and left channel signals are similar to each other, generates high frequency components of the skipped frame for any one channel signal by using the generated high frequency components of the corresponding frame for the other channel signal; and when the right and left channel signals are not similar to each other, generates high frequency components of the skipped frames for each channel signal by using previous frames for the relevant channel signal.

    摘要翻译: 提供了一种用于以较少计算重建高频分量的音频解码方法和装置。 音频解码装置包括解码器,频道相似性确定单元,高频分量产生单元和音频合成单元。 音频解码方法在每个信道信号跳过每隔一帧时产生帧的高频分量; 当右和左声道信号彼此相似时,通过使用对于另一声道信号的相应帧的所生成的高频分量,生成用于任何一个声道信号的跳过帧的高频分量; 并且当左和左声道信号彼此不相似时,通过使用相关通道信号的先前帧,为每个通道信号产生跳过的帧的高频分量。