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    • 42. 发明申请
    • MULTIVIEW VIDEO CODING
    • 多视频编码
    • WO2013016610A1
    • 2013-01-31
    • PCT/US2012/048475
    • 2012-07-27
    • QUALCOMM INCORPORATEDCHEN, YingKARCZEWICZ, Marta
    • CHEN, YingKARCZEWICZ, Marta
    • H04N7/26H04N7/50
    • H04N19/136H04N19/44H04N19/597H04N19/61H04N19/70
    • Aspects of this disclosure relate to a method of coding video data. In an example, the method includes obtaining, from an encoded bitstream, one or more network abstraction layer (NAL) units for each view component of a plurality of view components of encoded video data, where each view component of the plurality of view components corresponds to a common temporal location, and where the one or more NAL units encapsulate at least a portion of the encoded video data for the respective view components and include information indicative of a decoding order of the respective view components. The method also includes obtaining information, separate from the NAL units, indicating relationships between view identifiers for the views and the decoding order of the view components. The method also includes decoding the encoded video data of the plurality of view components in the decoding order based on the received information.
    • 本公开的方面涉及对视频数据进行编码的方法。 在一个示例中,该方法包括从编码比特流获得用于编码视频数据的多个视图分量的每个视图分量的一个或多个网络抽象层(NAL)单元,其中多个视图分量的每个视图分量对应于 并且其中一个或多个NAL单元封装用于各个视图组件的编码视频数据的至少一部分,并且包括指示各个视图组件的解码顺序的信息。 该方法还包括获得与NAL单元分离的信息,指示视图的视图标识符与视图组件的解码顺序之间的关系。 该方法还包括基于所接收的信息以解码顺序解码多个视图分量的编码视频数据。
    • 45. 发明申请
    • SIGNALING PICTURE SIZE IN VIDEO CODING
    • 在视频编码中指示图片大小
    • WO2013012864A1
    • 2013-01-24
    • PCT/US2012/047066
    • 2012-07-17
    • QUALCOMM INCORPORATEDCHEN, YingKARCZEWICZ, MartaWANG, Ye-Kui
    • CHEN, YingKARCZEWICZ, MartaWANG, Ye-Kui
    • H04N7/26H04N7/36H04N7/50
    • H04N19/157H04N19/122H04N19/172H04N19/177H04N19/46H04N19/96
    • A video encoder is configured to determine a picture size for one or more pictures included in a video sequence. The picture size associated with the video sequence may be a multiple of an aligned coding unit size for the video sequence. In one example, the aligned coding unit size for the video sequence may comprise a minimum coding unit size where the minimum coding unit size is selected from a plurality of smallest coding unit sizes corresponding to different pictures in the video sequence. A video decoder is configured to obtain syntax elements to determine the picture size and the aligned coding unit size for the video sequence. The video decoder decodes the pictures included in the video sequence with the picture size, and stores the decoded pictures in a decoded picture buffer.
    • 视频编码器被配置为确定视频序列中包括的一个或多个图像的图像尺寸。 与视频序列相关联的图像大小可以是视频序列的对齐编码单元大小的倍数。 在一个示例中,用于视频序列的对齐编码单元大小可以包括最小编码单元大小,其中从与视频序列中的不同图片对应的多个最小编码单元尺寸中选择最小编码单元大小。 视频解码器被配置为获得用于确定视频序列的图像大小和对齐的编码单元大小的语法元素。 视频解码器以图像大小对包括在视频序列中的图像进行解码,并将解码的图像存储在解码图像缓冲器中。
    • 47. 发明申请
    • SIGNALING RANDOM ACCESS POINTS FOR STREAMING VIDEO DATA
    • 用于流动视频数据的信号随机访问点
    • WO2012003236A1
    • 2012-01-05
    • PCT/US2011/042444
    • 2011-06-29
    • QUALCOMM INCORPORATEDCHEN, YingKARCZEWICZ, Marta
    • CHEN, YingKARCZEWICZ, Marta
    • H04N7/24
    • H04N21/8455G11B27/007G11B27/105G11B27/3027H04N19/70
    • This disclosure describes techniques relevant to HTTP streaming of media data. According to these techniques, a server device may signal an open decoding refresh (ODR) random access point (RAP) for a movie segmentation of a movie representation. At least one frame of the media segmentation following the ODR RAP frame in decoding order may not be correctly decoded, and wherein each frame of the media segmentation following the ODR RAP frame in display order can be correctly decoded without relying on content of frames prior to the ODR RAP in display order. According to the techniques of this disclosure, a client device may communicate a request to a server device for the streaming of media data based on signaling of the ODR RAP. Also according to the techniques of this disclosure, a client device may commence decoding and/or playback of the movie representation based on signaling of the ODR RAP.
    • 本公开描述了与媒体数据的HTTP流相关的技术。 根据这些技术,服务器设备可以发送用于电影表示的电影分割的开放解码刷新(ODR)随机接入点(RAP)。 以解码顺序在ODR RAP帧之后的媒体分段的至少一帧可能不能被正确解码,并且其中以显示顺序在ODR RAP帧之后的媒体分段的每个帧可以被正确地解码,而不依赖于帧之前的帧的内容 ODR RAP显示顺序。 根据本公开的技术,客户端设备可以基于ODR RAP的信令来向服务器设备传送媒体流媒体数据的请求。 还根据本公开的技术,客户端设备可以基于ODR RAP的信令开始解码和/或播放电影表示。
    • 48. 发明申请
    • CALCULATING DISPARITY FOR THREE-DIMENSIONAL IMAGES
    • 计算三维图像的差异
    • WO2011159673A1
    • 2011-12-22
    • PCT/US2011/040302
    • 2011-06-14
    • QUALCOMM INCORPORATEDCHEN, YingKARCZEWICZ, Marta
    • CHEN, YingKARCZEWICZ, Marta
    • H04N13/00
    • H04N13/128G06T7/593G06T7/97G06T2207/10021H04N2213/003
    • An apparatus may calculate disparity values for pixels of a two-dimensional image based on depth information for the pixels and generate a second image using the disparity values. The calculation of the disparity value for a pixel may correspond to a linear relationship between the depth of the pixel and a corresponding disparity range. In one example, an apparatus for rendering three-dimensional image data includes a view synthesizing unit configured to calculate disparity values for a plurality of pixels of a first image based on depth information associated with the plurality of pixels and disparity ranges to which the depth information is mapped, wherein the disparity values describe horizontal offsets for corresponding ones of a plurality of pixels for a second image. The apparatus may receive the first image and depth information from a source device. The apparatus may produce the second image using the first image and disparity values.
    • 设备可以基于像素的深度信息来计算二维图像的像素的视差值,并使用视差值生成第二图像。 像素的视差值的计算可以对应于像素的深度和对应的视差范围之间的线性关系。 在一个示例中,用于渲染三维图像数据的装置包括:视图合成单元,被配置为基于与多个像素相关联的深度信息和视差范围来计算第一图像的多个像素的视差值,深度信息 被映射,其中视差值描述对于第二图像的多个像素中的相应的像素的水平偏移。 设备可以从源设备接收第一图像和深度信息。 该装置可以使用第一图像和视差值产生第二图像。
    • 49. 发明申请
    • FRAME PACKING FOR ASYMMETRIC STEREO VIDEO
    • 不对称立体声视频的框架包装
    • WO2011143599A1
    • 2011-11-17
    • PCT/US2011/036499
    • 2011-05-13
    • QUALCOMM INCORPORATEDCHEN, YingKARCZEWICZ, Marta
    • CHEN, YingKARCZEWICZ, Marta
    • H04N7/26H04N7/46H04N7/50H04N13/00
    • H04N13/161H04N19/523H04N19/59H04N19/597H04N19/61H04N19/70H04N19/82
    • An asymmetric frame of a coded video bitstream may include a full resolution picture of a left view and a reduced resolution picture of a right view, where the left and right views form a stereo view pair for three-dimensional video playback. In one example, an apparatus includes a video encoder configured to receive a first picture of a first view of a scene having a first resolution, receive a second picture of a second view of the scene having a reduced resolution relative to the first resolution, form an asymmetric frame comprising the first picture and the second picture, and encode the asymmetric frame. In this manner, decoders of varying capabilities may receive the same bitstream, and the bitstream may consume less bandwidth than one or more bitstreams having full resolution pictures of a stereo view pair. The bitstream may have better quality than a bitstream having subsampled pictures.
    • 编码视频比特流的不对称帧可以包括左视图的全分辨率图像和右视图的缩小分辨率图像,其中左视图和右视图形成用于三维视频回放的立体视图对。 在一个示例中,一种装置包括:视频编码器,被配置为接收具有第一分辨率的场景的第一视图的第一图像,接收具有相对于第一分辨率降低的分辨率的场景的第二视图的第二图像,形式 包括第一图像和第二图像的非对称帧,并对非对称帧进行编码。 以这种方式,不同能力的解码器可以接收相同的比特流,并且比特流可以消耗比具有立体视图对的全分辨率图像的一个或多个比特流更少的带宽。 比特流可以具有比具有子采样图像的比特流更好的质量。