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    • 4. 发明申请
    • A METHOD AND A SYSTEM FOR DETERMINING A VIDEO FRAME TYPE
    • 一种用于确定视频帧类型的方法和系统
    • WO2012089790A1
    • 2012-07-05
    • PCT/EP2011/074198
    • 2011-12-29
    • ADVANCED DIGITAL BROADCAST S.A.HREBIEN, Maciej
    • HREBIEN, Maciej
    • H04N13/00G06T7/00
    • H04N17/00H04N13/161H04N2213/007
    • A computer-implemented method for determining a video frame type, comprising the steps of receiving a video frame and analyzing the contents of consecutive lines of the video frame in frequency domain by detecting a number of LR-type lines ( μ LR ) of the video frame for which the left half of the line is phase-correlated with the right half of the line, detecting an LR mean error (ε LR ) as a function of the difference between the values of Fourier transform coefficients for the left half of the line and the right half of the line, detecting a number of TB lines ( μ ΤΒ ) of a top half of the frame which are phase-correlated with lines of a bottom half of the frame and detecting a TB mean error (ε ΤΒ ) as a function of the difference between the values of Fourier transform coefficients for the lines of the top half of the frame and the lines of the bottom half of the frame. The method further comprises the step of calculating probability coefficients specifying that the frame type is a TB-type (p ΤB ) or LR-type (p LR ) 3D frame as a function of the LR mean error (ε LR ) and the TB mean error (ε ΤΒ ) and calculating a probability coefficient specifying that the frame type is a 2D frame as a function of the number of LR-type lines ( μ LR ) and the number of TB lines ( μ ΤΒ ).
    • 一种用于确定视频帧类型的计算机实现的方法,包括以下步骤:通过检测视频的LR类型线(μLL)的数量来接收视频帧并且在频域中分析视频帧的连续行的内容 线的左半边与行的右半部相位相关的帧,检测LR平均误差(e LR)作为线的左半部分的傅里叶变换系数的值的函数 检测与帧的下半部分的行相位相关的帧的上半部分的TB线数(μ??),并检测TB平均误差(e? )作为帧的上半部分的行和帧的下半部分的行的傅里叶变换系数的值之间的差的函数。 该方法还包括计算概率系数的步骤,该概率系数指定帧类型是作为LR平均误差(e LR)和TB平均值的函数的TB型(p?B)或LR型(pLR)3D帧 误差(e ??),并且计算指定帧类型是作为LR类型线数(μLR)和TB线数(μ??)的函数的2D帧的概率系数。
    • 10. 发明申请
    • IDENTIFICATION OF 3D FORMAT AND GRAPHICS RENDERING ON 3D DISPLAYS
    • 3D格式和图形渲染在3D显示上的标识
    • WO2011008821A1
    • 2011-01-20
    • PCT/US2010/041922
    • 2010-07-14
    • HOME BOX OFFICE, INC.CUTTNER, Craig, Davis
    • CUTTNER, Craig, Davis
    • H04N13/00
    • H04N13/183H04N13/156H04N2213/007
    • In one embodiment, a 3D display has an image processor including an overlay detector connected to a display controller. The image processor receives a 3D- compatible image stream from a 2D legacy device that may superimpose overlays, e.g., a 2D captions, over 3D-compatible images. The overlay detector automatically determines whether a received image comprises a caption overlay and, if so, provides the location and dimensions of the overlay to the display controller. The display controller processes the overlaid 3D-compatible image to isolate the caption characters of the caption overlay and generates, for a viewer of the 3D display, different left-eye and right-eye images, each including overlaid caption characters that substantially match the characters of the caption overlay. The result is the appearance, to the viewer, of a substantially flat and coherent caption overlay over a 3D image.
    • 在一个实施例中,3D显示器具有包括连接到显示控制器的覆盖检测器的图像处理器。 图像处理器从2D旧设备接收3D可兼容的图像流,其可以在3D兼容图像上叠加叠加,例如2D标题。 覆盖检测器自动确定接收到的图像是否包括字幕覆盖,如果是,则将叠加层的位置和尺寸提供给显示控制器。 显示控制器处理重叠的3D兼容图像以隔离字幕叠加的字幕字符,并为3D显示器的观看者生成不同的左眼图像和右眼图像,每个图像包括基本上匹配字符的重叠字幕 的标题叠加。 结果是在3D图像上对于观看者的外观,基本平坦和连贯的标题覆盖。