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    • 3. 发明申请
    • ELECTRONIC IMAGE PROCESSING METHOD AND DEVICE WITH LINKED RANDOM GENERATORS
    • 电子图像处理方法和连接随机发生器的设备
    • WO2006061751A1
    • 2006-06-15
    • PCT/IB2005/054011
    • 2005-12-02
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.BRULS, Wilhelmus, H., A.DE WAELE, Stijn
    • BRULS, Wilhelmus, H., A.DE WAELE, Stijn
    • H04N7/26H04N5/262
    • G06T5/002G06T2207/10016G06T2207/20204H04N19/85
    • A method for deterministic film grain addition, e.g. to video signals compressed in a way that the grain is lacking. The method of electronic image processing comprises: determining a first random value (Rl) corresponding to a first horizontal pixel position (hi) in a vertically positioned first horizontal line (Ll) of an inputted picture (PIC) ; and - deriving a resultant value (R) for a second horizontal pixel position (h2) in a vertically positioned second horizontal line (L2) , the resultant value depending on the first random value and a second random value (R2) corresponding to the second horizontal pixel position in the second horizontal line, random values for horizontally neighboring pixel positions being determined by successive outputs of a single random generator initialized with a seed, wherein the first random value is determined with a first random generator (nl) initialized with a first seed (Sl) for a firstmost horizontal pixel position in the first horizontal line (fl) , and the second random value is determined with a second random generator (n2) running in parallel with the first random generator, and initialized with a second seed (S2) for a firstmost horizontal pixel position in the second horizontal line (f2) , which second seed (S2) is substantially equal to a random value obtained by applying the first random generator (nl) for the firstmost horizontal pixel position in the second horizontal line (f2) after having consecutively been applied to all horizontal positions on a left-right-top- bottom zig-zag scan path (ZZ) being initialized with the first seed (Sl) and starting from the firstmost horizontal pixel position in the first horizontal line (fl) . The advantage is lower memory requirements for deterministic film grain addition.
    • 确定性胶片添加的方法,例如 以视频信号压缩的方式使谷物不足。 电子图像处理的方法包括:确定对应于输入图像(PIC)的垂直定位的第一水平线(L1)中的第一水平像素位置(hi)的第一随机值(R1); 以及 - 在垂直定位的第二水平线(L2)中导出第二水平像素位置(h2)的合成值(R),所得到的值取决于第一随机值和与第二水平像素位置相对应的第二随机值(R2) 在第二水平行中的水平像素位置,水平相邻像素位置的随机值由通过种子初始化的单个随机生成器的连续输出确定,其中第一随机值由第一随机生成器(nl)确定,该第一随机生成器 用于第一水平线(fl)中的第一水平像素位置的种子(S1),并且第二随机值由与第一随机生成器并行运行的第二随机生成器(n2)确定,并且用第二种子( S2),用于第二水平线(f2)中的第一水平像素位置,第二种子(S2)基本上等于通过应用第一水平线 随机发生器(nl),用于在连续施加到左上 - 上下底部之字形扫描路径(ZZ)上的所有水平位置之后,在第二水平线(f2)中的第一水平像素位置被初始化为第一 种子(S1)并且从第一水平线(fl)中的最前一个水平像素位置开始。 优点是确定性胶片颗粒添加的记忆要求较低。
    • 10. 发明申请
    • EFFICIENT ENCODING OF MULTIPLE VIEWS
    • 有效编辑多个视图
    • WO2007113725A3
    • 2008-03-27
    • PCT/IB2007051031
    • 2007-03-23
    • KONINKL PHILIPS ELECTRONICS NVBRULS WILHELMUS H AVAREKAMP CHRISTIAANBRASPENNING RALPH
    • BRULS WILHELMUS H AVAREKAMP CHRISTIAANBRASPENNING RALPH
    • H04N7/26H04N13/00
    • H04N19/597H04N13/0022H04N13/0048H04N19/00H04N2213/005
    • A new method of encoding multiple view image information into an image signal (200) is described, comprising: adding to the image signal (200) a first image (220) of pixel values representing one or more objects (110, 112) captured by a first camera (101); - adding to the image signal (200) a map (222) comprising for respective sets of pixels of the first image (220) respective values, representing a three-dimensional position in space of a region of the one or more objects (110, 112) represented by the respective set of pixels; and adding to the image signal (200) a partial representation (223) of a second image (224) of pixel values representing one or more objects (110, 112) captured by a second camera (102), the partial representation (223) comprising at least information of the majority of the pixels representing regions of the one or more objects (110, 112) not visible to the first camera (101). Advantages are less required information for higher precision and increased usability.
    • 描述了将多个视图图像信息编码成图像信号(200)的新方法,包括:向图像信号(200)添加表示由一个或多个对象(110,112)捕获的一个或多个对象(110,112)的像素值的第一图像(220) 第一相机(101); - 对所述图像信号(200)添加映射(222),其包括对于所述第一图像(220)的各个像素集合各自的值,其表示所述一个或多个对象(110,110)的区域的空间中的三维位置, 112)由相应的像素集合表示; 并且向所述图像信号(200)添加表示由第二相机(102)捕获的一个或多个对象(110,112)的像素值的第二图像(224)的部分表示(223),所述部分表示(223) 至少包括表示第一相机(101)不可见的一个或多个对象(110,112)的区域的大多数像素的信息。 优点是要求更高的信息,更高的精度和更高的可用性。