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    • 7. 发明申请
    • METHOD AND DEVICE FOR ENCODING A SEQUENCE OF IMAGES AND METHOD AND DEVICE FOR DECODING A SEQUENCE OF IMAGES
    • 用于编码图像序列的方法和装置以及用于解码图像序列的方法和装置
    • WO2013023785A3
    • 2013-05-23
    • PCT/EP2012003490
    • 2012-08-16
    • CANON KKLAROCHE GUILLAUME
    • LAROCHE GUILLAUME
    • H04N7/26
    • H04N19/0003H04N19/107H04N19/43H04N19/436H04N19/44H04N19/503H04N19/52H04N19/593
    • A method and device for deriving at least one motion information predictor for encoding of an image portion by motion compensation. At least two distinct first and second subsets of motion information predictors of a first set of motion information predictors are provided. Processing of the first subset of motion information predictors and processing of the second subset of motion information predictors is performed to obtain a final set of motion information predictors usable for predicting said image portion from the reference image portion. Processing of the second subset may comprise removing duplicates from among the motion information predictors of said second subset, and may be performed so as to exclude temporal predictors. At least part of the processing of the second subset of motion information predictors may be performed concurrently with at least part of the processing of the first subset of motion information predictors.
    • 一种用于通过运动补偿导出用于对图像部分进行编码的至少一个运动信息预测器的方法和装置。 提供了第一组运动信息预测器的运动信息预测器的至少两个不同的第一和第二子集。 执行运动信息预测器的第一子集的处理和运动信息预测器的第二子集的处理,以获得可用于从参考图像部分预测所述图像部分的运动信息预测器的最终集合。 第二子集的处理可以包括从所述第二子集的运动信息预测变量中去除重复,并且可以被执行以排除时间预测变量。 运动信息预测器的第二子集的处理的至少一部分可以与运动信息预测器的第一子集的处理的至少一部分同时执行。
    • 10. 发明申请
    • ENCODING AND DECODING WITH ELIMINATION OF ONE OR MORE PREDETERMINED PREDICTORS
    • 用一个或多个预测预测器消除编码和解码
    • WO2010043806A2
    • 2010-04-22
    • PCT/FR2009051937
    • 2009-10-12
    • FRANCE TELECOMLAROCHE GUILLAUMEJUNG JOEL
    • LAROCHE GUILLAUMEJUNG JOEL
    • H04N7/26H04N5/44H04N7/32H04N7/50
    • H04N19/136H04N19/109H04N19/11H04N19/124H04N19/176H04N19/523H04N19/61
    • The invention relates to a method for encoding an image or a sequence of images generating a data flow (F) comprising data representing at least one group of pixels (MB) in one of said images (IE), said method including the steps of: calculating a predetermined number of predictors (P1,..., Pn) in relation to said group of pixels (MB), and selecting an optimal predictor in accordance with a predetermined selection criterion. According to the invention, between the calculation and selection steps, a step of eliminating at least one predictor with a calculated predetermined number is performed, which consists, for at least two ith (Pi) and jth (Pj) predictors, of: calculating the difference between said jth and ith predictors, applying a transform to said calculated difference, performing a quantification operation on the result of the applied transform, comparing the result of said quantification operation with a predetermined value, eliminating the jth predictor if the result of said quantification operation is less than or equal to said predetermined value.
    • 本发明涉及一种用于编码生成包括表示所述图像(IE)之一中的至少一个像素组(MB)的数据的数据流(F)的图像或图像序列的方法,所述方法包括以下步骤: 计算与所述像素组(MB)有关的预定数量的预测变量(P1,...,Pn),并根据预定的选择标准选择最优预测变量。 根据本发明,在计算和选择步骤之间,执行用计算出的预定数量去除至少一个预测器的步骤,该步骤对于至少两个第i(Pi)和第j(Pj)预测器包括:计算 对所述第j和第i个预测变量之间的差异,对所述计算的差异应用变换,对所施加的变换的结果执行量化操作,将所述量化操作的结果与预定值进行比较,如果所述量化的结果 操作小于或等于所述预定值。