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    • 4. 发明申请
    • METHOD OF CODING, DECODING, CODER AND DECODER
    • 编码,解码,编码器和解码器的方法
    • WO2009138666A3
    • 2010-02-25
    • PCT/FR2009050753
    • 2009-04-23
    • THOMSON LICENSINGFRANCOIS EDOUARDLE MEUR OLIVIERVIERON JEROME
    • FRANCOIS EDOUARDLE MEUR OLIVIERVIERON JEROME
    • H04N7/26H04N7/46
    • H04N19/00024H04N19/105H04N19/136H04N19/17H04N19/23H04N19/577H04N19/61
    • The invention relates to a method of coding an image portion of an image of a video sequence, at least one image of the video sequence being a key image. The method comprises the following steps: a) calculating (47) a salience map of the key image; b) estimating (50) for the portion of image to be coded, at least one motion vector pointing towards a portion of the key image; c) motion-compensating (64) at least one portion of the salience map with the aid of the estimated motion vector so as to obtain, for said image portion, at least one predicted salience map portion; and d) coding (68, 70, 74, 76, 78) the image portion as a function of the salience level of the portion of salience map predicted. The invention also relates to a method of decoding a binary stream, a coder able to code images of a video sequence and a decoder of a binary stream.
    • 本发明涉及一种对视频序列的图像的图像部分进行编码的方法,所述视频序列的至少一个图像是关键图像。 该方法包括以下步骤:a)计算(47)关键图像的显着性图; b)对于要编码的图像的部分估计(50)至少一个指向所述关键图像的一部分的运动矢量; c)利用所估计的运动矢量来运动补偿(64)至少一部分显着图,以便为所述图像部分获得至少一个预测显着图部分; 以及d)作为所预测的显着性图的部分的显着水平的函数的图像部分的编码(68,70,74,76,78)。 本发明还涉及对二进制流进行解码的方法,能够对二进制流的视频序列的图像和解码器进行编码的编码器。
    • 6. 发明申请
    • METHOD FOR DERIVING MOTION DATA FOR HIGH RESOLUTION PICTURES FROM MOTION DATA OF LOW RESOLUTON PICTURES AND CODING AND DECODING DEVICES IMPLEMENTING SAID METHOD
    • 用于从低分辨率图像和编码和解码设备的运动数据中分辨高分辨率图像的运动数据的方法实现方法
    • WO2008006728A3
    • 2008-04-03
    • PCT/EP2007056640
    • 2007-07-02
    • THOMSON LICENSINGFRANCOIS EDOUARDBOTTREAU VINCENTVIERON JEROMECHEVANCE CHRISTOPHE
    • FRANCOIS EDOUARDBOTTREAU VINCENTVIERON JEROMECHEVANCE CHRISTOPHE
    • H04N7/26H04N7/46
    • H04N19/59H04N19/112H04N19/16H04N19/33H04N19/517
    • The invention relates to a method for deriving motion data for a macroblock of a high resolution picture, called high layer macroblock, from motion data of macroblocks of a low resolution picture, called base layer macroblock. The method comprises the following steps: - dividing (2100) the high layer macroblock in elementary blocks; - computing (2200), for each elementary block, an intermediate position within the low resolution picture from the elementary block position depending on the coding modes of the high layer macroblock and of the high and low resolution pictures; - identifying (2300) the base layer macroblock, called base_ MB, comprising the pixel located at the intermediate position; - computing (2400) a final position within the low resolution picture from the virtual base layer position depending on the coding modes of the base_ MB, of the high layer macroblock and of the high and low resolution pictures; - identifying (2500) the base layer macroblock, called real_ base_ MB, comprising the pixel located at the final position; and deriving (2600) motion data, for the high layer macroblock, from motion data of the identified real_ base_ MB.
    • 本发明涉及一种用于从被称为基本层宏块的低分辨率图像的宏块的运动数据中获取高分辨率图像的宏块(称为高层宏块)的运动数据的方法。 该方法包括以下步骤: - 分割(2100)基本块中的高层宏块; - 对于每个基本块,根据高层宏块的编码模式以及高分辨率图像和低分辨率图像,从基本块位置计算(2200)低分辨率图像内的中间位置; - 识别(2300)包括位于中间位置处的像素的称为base_MB的基本层宏块; - 根据高层宏块的base_MB,高分辨率图像和低分辨率图像的编码模式,从虚拟基本层位置计算(2400)低分辨率图像内的最终位置; - 识别(2500)包括位于最终位置处的像素的称为real_base_MB的基本层宏块; 以及从所识别的real_base_MB的运动数据导出(2600)高层宏块的运动数据。