3D SCREEN SIZE COMPENSATION
    1.
    发明申请
    3D SCREEN SIZE COMPENSATION 审中-公开
    3D屏幕尺寸补偿

    公开(公告)号:US20120206453A1

    公开(公告)日:2012-08-16

    申请号:US13496500

    申请日:2010-09-08

    IPC分类号: G06T15/00

    摘要: A device converts three dimensional [3D] image data arranged for a source spatial viewing configuration to a 3D display signal (56) for a 3D display in a target spatial viewing configuration. 3D display metadata has target width data indicative of a target width W t of the 3D display in the target spatial viewing configuration. A processor (52,18) changes the mutual horizontal position of images L and R by an offset O to compensate differences between the source spatial viewing configuration and the target spatial viewing configuration. The processor (52) retrieves source offset data provided for the 3D image data for calculating the offset O, and determines the offset O in dependence of the source offset data. Advantageously the 3D perception for the viewer is automatically adapted based on the source offset data as retrieved to be substantially equal irrespective of the screen size.

    摘要翻译: 设备将用于源空间观察配置的三维[3D]图像数据转换为3D显示信号(56),以用于目标空间观察配置中的3D显示。 3D显示元数据具有指示目标空间观看配置中的3D显示的目标宽度W t的目标宽度数据。 处理器(52,18)通过偏移O改变图像L和R的相互水平位置,以补偿源空间观察配置与目标空间观看配置之间的差异。 处理器(52)检索针对3D图像数据提供的源偏移数据,以计算偏移量O,并且根据源偏移数据确定偏移量O. 有利地,基于所检索的源偏移数据自动地适应观察者的3D感知,而与屏幕大小无关。

    VERSATILE 3-D PICTURE FORMAT
    3.
    发明申请
    VERSATILE 3-D PICTURE FORMAT 有权
    VERSATILE 3-D图片格式

    公开(公告)号:US20110122131A1

    公开(公告)日:2011-05-26

    申请号:US13054521

    申请日:2009-07-22

    IPC分类号: G06T15/00

    摘要: A 3-D picture is provided as follows. A pair of pictures (LP, RP) is provided that comprises a first picture (LP) being intended for one eye of a viewer, and a second picture (RP) being intended for the other eye of the viewer. In addition, a depth map (DM) specifically dedicated to the first picture (LP) is provided. The depth map (DM) comprises depth indication values. A depth indication value relates to a particular portion of the first picture (LP) and indicates a distance between an object at least partially represented by that portion of the first picture and the viewer. Such a 3-D picture allows a satisfactory 3-D visual rendering on a great variety of display devices. Preferably, the 3-D picture is supplemented with rendering guidance data (GD) that specifies respective parameters for respective rendering contexts. These respective parameters preferably relate to generating a shifted viewpoint picture from the first picture (LP) and the depth map (DM).

    摘要翻译: 如下提供3-D图像。 提供一对图像(LP,RP),其包括旨在用于观看者的一只眼睛的第一图像(LP)和用于观看者的另一只眼睛的第二图像(RP)。 另外,提供专门用于第一画面(LP)的深度图(DM)。 深度图(DM)包括深度指示值。 深度指示值涉及第一图片(LP)的特定部分,并且指示至少部分地由第一图片的部分表示的对象与观看者之间的距离。 这样的3-D图像允许在各种各样的显示设备上令人满意的3-D可视渲染。 优选地,3-D图片被补充具有指定各个渲染上下文的相应参数的渲染指导数据(GD)。 这些各自的参数优选地涉及从第一图像(LP)和深度图(DM)生成移位的视点图像。

    SELECTING VIEWPOINTS FOR GENERATING ADDITIONAL VIEWS IN 3D VIDEO
    4.
    发明申请
    SELECTING VIEWPOINTS FOR GENERATING ADDITIONAL VIEWS IN 3D VIDEO 有权
    选择在3D视频中生成附加视图的视图

    公开(公告)号:US20120188341A1

    公开(公告)日:2012-07-26

    申请号:US13499319

    申请日:2010-09-21

    IPC分类号: H04N13/00

    CPC分类号: H04N13/161 H04N13/111

    摘要: A method of encoding a video data signal (15) is provided, the method comprising providing at least a first image (21) of a scene (100) as seen from a first viewpoint, providing rendering information (22) for enabling the generation of at least one rendered image of the scene (100) as seen from a rendering viewpoint, providing a preferred direction indicator (23), defining a preferred orientation of the rendering viewpoint relative to the first viewpoint, and generating (24) the video data signal (15) comprising encoded data representing the first image, the rendering information and the preferred direction indicator.

    摘要翻译: 提供一种对视频数据信号(15)进行编码的方法,所述方法包括:从第一视点看,提供场景(100)的至少第一图像(21),提供呈现信息(22) 提供从渲染视点看的场景(100)的至少一个渲染图像,提供优选方向指示符(23),其定义相对于第一视点的渲染视点的优选取向,以及生成(24)视频数据信号 (15)包括表示第一图像的编码数据,呈现信息和优选方向指示符。

    Video compression
    6.
    发明授权
    Video compression 有权
    视频压缩

    公开(公告)号:US07010034B2

    公开(公告)日:2006-03-07

    申请号:US09840812

    申请日:2001-04-24

    IPC分类号: H04N7/12

    摘要: The concept of B-frames gives the MPEG video compression standard its high encoding efficiency. However, B-frame encoding roughly doubles the complexity of an MPEG encoder. In view thereof, MPEG encoders have been developed which produce I-frames and P-frames only. They are less complex but also less efficient. To improve the efficiency of such “IPP encoders”, selected P-frames are quantized more coarsely than other P-frames, for example, by multiplying the conventional quantization step size by 1.4. Although this results in isolated frames (“virtual B-frames”) being encoded with a lower quality, the overall perceptual quality is not affected. It has been found that the gain in bit rate obtained by the coarser quantization is not lost in subsequent P-frames, even though the subsequent frames are encoded with reference to the lower quality frames.

    摘要翻译: B帧的概念为MPEG视频压缩标准提供了高编码效率。 然而,B帧编码大致使MPEG编码器的复杂度增加一倍。 鉴于此,已经开发出仅产生I帧和P帧的MPEG编码器。 它们不那么复杂,但效率也不高。 为了提高这种“IPP编码器”的效率,例如通过将常规量化步长乘以1.4,所选择的P帧比其他P帧更粗略地被量化。 虽然这导致隔离的帧(“虚拟B帧”)以较低的质量被编码,但整体感知质量不受影响。 已经发现,即使随后的帧被参照较低质量帧进行编码,通过较粗略量化得到的比特率的增益也不会在随后的P帧中丢失。

    EFFICIENT CODING OF DEPTH TRANSITIONS IN 3D (VIDEO)
    7.
    发明申请
    EFFICIENT CODING OF DEPTH TRANSITIONS IN 3D (VIDEO) 审中-公开
    三维(视频)深度转换的有效编码

    公开(公告)号:US20120229603A1

    公开(公告)日:2012-09-13

    申请号:US13508739

    申请日:2010-11-08

    IPC分类号: H04N13/00

    摘要: A method of encoding a video data signal (15) is provided, together with a method for decoding. The encoding comprises providing color information (51) for pixels in an image, providing a depth map with depth information (52) for the pixels, providing transition information (56, 57, 60, 70, 71) being representative of a width (63, 73) of a transition region (61, 72) in the image, the transition region (61, 72) comprising a depth transition (62) and blended pixels in which colors of a foreground object and a background object are blended, and generating (24) the video data signal (15) comprising encoded data representing the color information (51), the depth map (52) and the transition information (56, 57, 60, 70, 71). The decoding comprises using the transition information (56, 57, 60, 70, 71) for determining the width (63, 73) of the transition regions (61, 72) and for determining alpha values (53) for pixels inside the transition regions (61, 72). The determined alpha values (53) are used for determining the color of a blended pixel at the transition of a foreground object and a background object.

    摘要翻译: 提供了一种编码视频数据信号(15)的方法以及解码方法。 该编码包括为图像中的像素提供彩色信息(51),为像素提供具有深度信息(52)的深度图,提供代表宽度的过渡信息(56,57,60,70,71)(63 ,73),所述图像中的过渡区域(61,72)的过渡区域(61,72)包括深度转变(62)和混合了前景对象和背景对象的颜色的混合像素,并且生成 (24)包括表示颜色信息(51)的编码数据,深度图(52)和转换信息(56,57,60,70,71)的视频数据信号(15)。 解码包括使用转换信息(56,57,60,70,71)来确定过渡区域(61,72)的宽度(63,73),并且用于确定过渡区域内的像素的α值(53) (61,72)。 确定的α值(53)用于确定在前景物体和背景物体的转变处的混合像素的颜色。

    METHOD AND SYSTEM FOR ENCODING A 3D VIDEO SIGNAL, ENCLOSED 3D VIDEO SIGNAL, METHOD AND SYSTEM FOR DECODER FOR A 3D VIDEO SIGNAL
    8.
    发明申请
    METHOD AND SYSTEM FOR ENCODING A 3D VIDEO SIGNAL, ENCLOSED 3D VIDEO SIGNAL, METHOD AND SYSTEM FOR DECODER FOR A 3D VIDEO SIGNAL 有权
    用于编码3D视频信号的方法和系统,附加的3D视频信号,用于3D视频信号的解码器的方法和系统

    公开(公告)号:US20100195716A1

    公开(公告)日:2010-08-05

    申请号:US12665093

    申请日:2008-06-19

    IPC分类号: H04N7/26

    CPC分类号: H04N19/597

    摘要: In a method for encoding and an encoder for a 3D video signal, centre view frames, a depth map for centre view frames and an occlusion data frame are encoded. On the basis of the depth map for the centre view frame a distinction is made between functional and non-functional data in an occlusion data frame. This allows a strong reduction in bits needed for the encoded occlusion data frame. In the decoder a combined data stream is made of functional data in the encoded occlusion data frames and the centre view frames. Preferably the centre view frames are used as reference frames in encoding the occlusion data frames.

    摘要翻译: 在一种用于编码的方法和用于3D视频信号的编码器中,编码中心视图帧,中心视图帧的深度图和遮挡数据帧。 基于中心视图帧的深度图,区分闭塞数据帧中的功能和非功能数据。 这允许编码的遮挡数据帧所需的位的强大的减少。 在解码器中,组合数据流由编码的遮挡数据帧和中心视图帧中的功能数据组成。 优选地,在对遮挡数据帧进行编码时,将中心视图帧用作参考帧。

    Method and device for generating a scalable coded video signal from a non-scalable coded video signal
    9.
    发明授权
    Method and device for generating a scalable coded video signal from a non-scalable coded video signal 有权
    用于从不可缩放编码视频信号生成可缩放编码视频信号的方法和装置

    公开(公告)号:US07227892B2

    公开(公告)日:2007-06-05

    申请号:US10201671

    申请日:2002-07-23

    IPC分类号: H04B1/66

    摘要: The invention is a method of modifying data for obtaining a scalable video signal composed of a base video signal and a set of enhancement video signals from a non-scalable video signal. The method includes a set of attenuation steps applied to coefficients composing the non-scalable video signal, the attenuation steps being assembled in cascaded or in series for delivering the base video signal. The method further includes a re-encoding step associated with each one of said attenuation steps for delivering one of said enhancement video signals, from the coding error generated in each attenuation step.

    摘要翻译: 本发明是一种修改数据的方法,用于从不可分级视频信号获得由基本视频信号和一组增强视频信号组成的可分级视频信号。 该方法包括一组应用于构成非可分级视频信号的系数的衰减步骤,该衰减步骤被级联或串联组合以传送基本视频信号。 该方法还包括与每个衰减步骤相关联的重新编码步骤,用于从每个衰减步骤中产生的编码误差传送所述增强视频信号之一。

    Selecting viewpoints for generating additional views in 3D video
    10.
    发明授权
    Selecting viewpoints for generating additional views in 3D video 有权
    选择在3D视频中生成其他视图的视点

    公开(公告)号:US09167226B2

    公开(公告)日:2015-10-20

    申请号:US13499319

    申请日:2010-09-21

    IPC分类号: H04N13/00

    CPC分类号: H04N13/161 H04N13/111

    摘要: A method of encoding a video data signal (15) is provided, the method comprising providing at least a first image (21) of a scene (100) as seen from a first viewpoint, providing rendering information (22) for enabling the generation of at least one rendered image of the scene (100) as seen from a rendering viewpoint, providing a preferred direction indicator (23), defining a preferred orientation of the rendering viewpoint relative to the first viewpoint, and generating (24) the video data signal (15) comprising encoded data representing the first image, the rendering information and the preferred direction indicator.

    摘要翻译: 提供一种对视频数据信号(15)进行编码的方法,所述方法包括:从第一视点看,提供场景(100)的至少第一图像(21),提供呈现信息(22) 提供从渲染视点看的场景(100)的至少一个渲染图像,提供优选方向指示符(23),其定义相对于第一视点的渲染视点的优选取向,以及生成(24)视频数据信号 (15)包括表示第一图像的编码数据,呈现信息和优选方向指示符。