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    • 24. 发明申请
    • CODING DEVICE AND METHOD, DECODING DEVICE AND METHOD, RECORDING MEDIUM, AND PROGRAM
    • 编码设备和方法,解码设备和方法,记录介质和程序
    • US20140153649A1
    • 2014-06-05
    • US14176826
    • 2014-02-10
    • SONY CORPORATION
    • Kazushi SatoTeruhiko SuzukiOsamu SunoharaYoichi Yagasaki
    • H04N19/51
    • H04N19/52H03M7/4006H04N19/13H04N19/16H04N19/176H04N19/513H04N19/537
    • An encoding apparatus and an encoding method, a decoding apparatus and a decoding method, a recording medium, and a program suitable for encoding image signals with a higher compression ratio for transmission or accumulation. In an arithmetic coding section, from among the syntax elements of input image compression information, the frame/field flag is first encoded by a frame/field flag context model. When the macroblock to be processed is subjected to frame-based encoding, a frame-based context model, specified in the current H.26L standard, is applied. On the other hand, when the macroblock to be processed is subjected to field-based encoding, a field-based context model is applied for the syntax elements described below. The present invention is applied to an encoder for encoding image information and a decoder for decoding image information.
    • 一种编码装置和编码方法,解码装置和解码方法,记录介质和适用于编码用于传输或累积的较高压缩比的图像信号的程序。 在算术编码部分中,从输入图像压缩信息的语法元素中,帧/场标志首先由帧/场标志上下文模型编码。 当要处理的宏块进行基于帧的编码时,应用在当前H.26L标准中指定的基于帧的上下文模型。 另一方面,当对待处理的宏块进行基于场的编码时,对于下面描述的语法元素应用基于场的上下文模型。 本发明应用于编码图像信息的编码器和解码图像信息的解码器。
    • 25. 发明授权
    • Method for scalable video coding on a plurality of space resolution levels
    • 用于在多个空间分辨率级别上进行可缩放视频编码的方法
    • US08625678B2
    • 2014-01-07
    • US11992741
    • 2005-09-29
    • Giovanni CordaraGianluca FranciniSkjalg Lepsoy
    • Giovanni CordaraGianluca FranciniSkjalg Lepsoy
    • H04N7/12
    • H04N19/53H04N19/537
    • A method for estimating motion for the scalable video coding, includes the step of estimating the motion field of a sequence of photograms which can be represented with a plurality of space resolution levels including computing the motion field for the minimum resolution level and, until the maximum resolution level is reached, repeating the steps of: rising by one resolution level; extracting the photograms for such resolution level; and computing the motion field for such resolution level. The motion field is computed through an optical flow equation which contains, for every higher level than the minimum resolution level, a regularization factor between levels which points out the difference between the solution for the considered level and the solution for the immediately lower resolution level. A more or less high value of the regularization factor implies more or less relevant changes of the component at the considered resolution during the following process iterations.
    • 用于估计可伸缩视频编码的运动的方法包括估计可以用多个空间分辨率级别表示的摄影图序列的运动场的步骤,包括计算最小分辨率级别的运动场,并且直到最大值 达到分辨率水平,重复以上步骤:上升一分辨率水平; 提取这样的分辨率级别的照片; 并计算这种分辨率水平的运动场。 运动场是通过一个光学流量方程来计算的,对于每个比最小分辨率级别高的级别,它包含指出所考虑的级别的解决方案与立即降低分辨率级别的解决方案之间的差异的级别之间的正则化因子。 正则化因子的或多或少高值意味着在以下过程迭代期间,在考虑的分辨率下组件的或多或少的相关变化。