Technique for handling media content to be accessible via multiple media tracks
    52.
    发明授权
    Technique for handling media content to be accessible via multiple media tracks 有权
    用于处理可通过多个媒体轨道访问的媒体内容的技术

    公开(公告)号:US08798264B2

    公开(公告)日:2014-08-05

    申请号:US13130866

    申请日:2008-11-26

    IPC分类号: H04L9/00

    摘要: A method of handling media content comprises providing a set of one or more first layer data items that are to be accessible via a first media track. Each first layer data item is decodable to be rendered as a portion of the media content. Moreover, a set of one or more second layer data items is provided that are to be accessible via at least one second media track, each second layer data item being decodable to be rendered in combination with at least one decoded first layer data item as an enhanced portion of the media content. With each second layer data item a track reference index is associated that identifies the first media track via which the first layer data items are accessible. Then, the second layer data items and the associated track reference indices are encrypted for being transmitted to a content recipient.

    摘要翻译: 处理媒体内容的方法包括提供可经由第一媒体轨道访问的一组或多个第一层数据项的集合。 每个第一层数据项可解码以被呈现为媒体内容的一部分。 此外,提供一组一个或多个第二层数据项,其可以经由至少一个第二媒体轨道访问,每个第二层数据项可解码以与至少一个解码的第一层数据项组合呈现为 媒体内容的增强部分。 对于每个第二层数据项,轨道参考索引被相关联,其标识第一层数据项可被访问的第一媒体轨道。 然后,第二层数据项和关联的轨道参考索引被加密以便发送给内容接收方。

    Auxiliary Information Map Upsampling
    53.
    发明申请
    Auxiliary Information Map Upsampling 有权
    辅助信息地图上采样

    公开(公告)号:US20140205023A1

    公开(公告)日:2014-07-24

    申请号:US14238485

    申请日:2012-06-29

    摘要: An auxiliary information map (10) is upsampled to form an upsampled auxiliary information map (20). Multiple reference pixels (23) in the upsampled auxiliary information map (20) are selected for a current pixel (21) in the upsampled auxiliary information map (20) based on texel values of texels in an associated texture (30). An updated pixel value is calculated for the current pixel (21) based on the pixel values of the selected reference pixels (23).

    摘要翻译: 辅助信息图(10)被上采样以形成上采样辅助信息图(20)。 基于上位采样的辅助信息图(20)中的上采样辅助信息图(20)中的多个参考像素(23)针对上采样的辅助信息图(20)中的当前像素(21),基于相关纹理(30)中的纹素的纹理值来选择。 基于所选择的参考像素(23)的像素值,针对当前像素(21)计算更新的像素值。

    Encoder, Method in an Encoder, Decoder and Method in a Decoder for Providing Information Concerning a Spatial Validity Range
    54.
    发明申请
    Encoder, Method in an Encoder, Decoder and Method in a Decoder for Providing Information Concerning a Spatial Validity Range 有权
    解码器中的编码器,方法,解码器和方法,用于提供关于空间有效范围的信息

    公开(公告)号:US20140192148A1

    公开(公告)日:2014-07-10

    申请号:US14238482

    申请日:2012-05-24

    IPC分类号: H04N13/00

    摘要: Methods (700, 900) for providing information from an encoder (220) to a decoder (230) concerning a spatial validity range, at which view synthesis of an image at a virtual camera position can be performed with sufficient visual quality, based on a view of at least one real camera (210-1) comprised in a set of real cameras (210-1, 210-2, 210-3, 210-4). The methods (700, 900) comprises determining (701) the spatial validity range of the at least one real camera (210-1), which spatial validity range specifies for the decoder (230) what information to use for synthesising the image of the virtual camera position. Also, the determined (701) spatial validity range is transmitted (706) to the decoder (230).

    摘要翻译: 用于从编码器(220)向解码器(230)提供关于空间有效范围的信息的方法(700,900),在该视图下,可以以足够的视觉质量来执行虚拟相机位置处的图像的合成,基于 包括在一组真实相机(210-1,210-2,210-3,210-4)中的至少一个真实相机(210-1)的视图。 方法(700,900)包括确定(701)至少一个真实照相机(210-1)的空间有效范围,空间有效范围为解码器(230)指定什么信息用于合成图像的 虚拟相机位置。 此外,确定的(701)空间有效范围被发送(706)到解码器(230)。

    Technique for Handling Media Content to be Accessible via Multiple Media Tracks
    58.
    发明申请
    Technique for Handling Media Content to be Accessible via Multiple Media Tracks 有权
    通过多媒体轨道处理媒体内容可访问的技术

    公开(公告)号:US20110261957A1

    公开(公告)日:2011-10-27

    申请号:US13130866

    申请日:2008-11-26

    IPC分类号: H04L9/18 H04L9/08 G06F21/24

    摘要: A technique for protecting media content that is to be accessible via multiple media tracks of a media file is provided. A method implementation of this technique comprises the step of providing a set of one or more first layer data items that are to be accessible via a first media track, with each first layer data item being decodable to be rendered as a portion of the media content. Moreover, a set of one or more second layer data items is provided that are to be accessible via at least one second media track, with each second layer data item being decodable to be rendered in combination with at least one decoded first layer data item as an enhanced portion of the media content. With each second layer data item a track reference index is associated that allows to identify the first media track via which the first layer data items are accessible. Then, in a next step, the second layer data items and the associated track reference indices (plus optionally the first layer data items) are encrypted for being transmitted to a content recipient.

    摘要翻译: 提供了一种用于保护可通过媒体文件的多个媒体轨道访问的媒体内容的技术。 该技术的方法实现包括提供可经由第一媒体轨道访问的一个或多个第一层数据项的集合的步骤,其中每个第一层数据项可解码以被呈现为媒体内容的一部分 。 此外,提供一组一个或多个第二层数据项,其可以经由至少一个第二媒体轨道访问,其中每个第二层数据项可解码以与至少一个解码的第一层数据项组合呈现为 媒体内容的增强部分。 对于每个第二层数据项,轨道参考索引被关联,其允许识别第一层数据项可访问的第一媒体轨道。 然后,在下一步骤中,第二层数据项和关联的轨道参考索引(可选地,加上第一层数据项)被加密以被发送到内容接收方。