Encoding filter coefficients
    11.
    发明授权
    Encoding filter coefficients 有权
    编码滤波器系数

    公开(公告)号:US08687711B2

    公开(公告)日:2014-04-01

    申请号:US12811996

    申请日:2009-01-08

    摘要: A method of encoding a plurality of adaptive filter coefficients (104, 107, 112) into a bitstream (110). The method comprises the steps of entropy encoding (109) the adaptive filter coefficients (104, 107, 112) into the bitstream (110), whereby a prediction (202) for an instance (204) of the adaptive filter coefficients is determined (201) based on at least one of the remaining adaptive filter coefficients (206), a prediction error (205) is determined (203) based on the difference between the instance (204) of the adaptive filter coefficients and the prediction (202), and wherein the step of entropy encoding (109) the plurality of adaptive filter coefficients (104, 107, 112) comprises entropy encoding (109) the prediction error (205) for the instance (204) of the adaptive filter coefficients and entropy encoding (109) the remaining adaptive filter coefficients (206). Further is provided a corresponding method of decoding a bitstream (110) of encoded adaptive filter coefficients into decoded adaptive filter coefficients (116, 118, 120, 123).

    摘要翻译: 一种将多个自适应滤波器系数(104,107,112)编码为比特流(110)的方法。 该方法包括以下步骤:将自适应滤波器系数(104,107,112)熵编码(109)到比特流(110)中,由此确定自适应滤波器系数的实例(204)的预测(202)(201 )基于所述剩余自适应滤波器系数(206)中的至少一个,基于所述自适应滤波器系数的实例(204)与所述预测(202)之间的差异来确定(203)预测误差(205),以及 其中所述多个自适应滤波器系数(104,107,112)的熵编码(109)的步骤包括对所述自适应滤波器系数和熵编码(109)的实例(204)进行熵编码(109)所述预测误差(205) )剩余的自适应滤波器系数(206)。 还提供了将经编码的自适应滤波器系数的比特流(110)解码为解码的自适应滤波器系数(116,118,120,123)的相应方法。

    Combined storage and transmission of scalable media
    12.
    发明授权
    Combined storage and transmission of scalable media 有权
    可扩展媒体的组合存储和传输

    公开(公告)号:US08571215B2

    公开(公告)日:2013-10-29

    申请号:US12160142

    申请日:2006-11-29

    IPC分类号: H04N7/167

    摘要: The invention involves collective management of video and audio content in a content provider. The video and audio content is available in multiple potential versions, e.g. in the form of scalable media or media pre-encoded to fixed bandwidth levels. The video and audio data is associated with bandwidth share information enabling estimation of a respective apportionment of a total available bandwidth to the video and audio content. The provider uses this share information and information of the total assignable bandwidth level for providing a respective video version and audio version from the multiple potential versions. This allows for increased user-quality when rendering the video and audio data as optimal video and audio version can be dynamically provided during the media session.

    摘要翻译: 本发明涉及对内容提供商中的视频和音频内容的集体管理。 视频和音频内容可用于多种潜在版本,例如 以可扩展媒体或媒体的形式预编码到固定带宽水平。 视频和音频数据与带宽共享信息相关联,使得能够估计视频和音频内容的总可用带宽的相应分配。 提供商使用该共享信息和总可分配带宽级别的信息来从多个潜在版本提供相应的视频版本和音频版本。 这可以在渲染视频和音频数据时提高用户质量,因为在媒体会话期间可以动态地提供最佳的视频和音频版本。

    Adaptive Intra Mode Selection
    13.
    发明申请
    Adaptive Intra Mode Selection 有权
    自适应内模式选择

    公开(公告)号:US20100309977A1

    公开(公告)日:2010-12-09

    申请号:US12808992

    申请日:2008-07-31

    IPC分类号: H04N7/32

    摘要: In video encoding and decoding predictions may be generated by intra-frame prediction. Intra-frame prediction uses reconstructed pixels in a reconstructed frame. Intra-frame prediction is performed by extending the reconstructed pixels into a predicted block using intra-frame prediction modes, each intra-frame prediction mode indicating a direction of the extension. In order to reduce the number of possible intra-frame prediction modes, a subset is selected from a predetermined set of possible intra-frame prediction modes. A subset of intra-frame prediction modes can be created by forming preselection sets of intra-frame prediction modes on the basis of similarity of their associated predicted blocks and selecting a representative intra-frame prediction mode from each preselection set.

    摘要翻译: 在视频编码和解码中,可以通过帧内预测来生成预测。 帧内预测使用重构帧中的重构像素。 通过使用帧内预测模式将重构像素扩展为预测块来进行帧内预测,​​每个帧内预测模式指示扩展方向。 为了减少可能的帧内预测模式的数量,从可能的帧内预测模式的预定集合中选择一个子集。 可以通过基于其相关联的预测块的相似度并从每个预选集中选择代表性帧内预测模式来形成帧内预测模式的预选集来创建帧内预测模式的子集。

    ADAPTIVE FILTERING
    14.
    发明申请
    ADAPTIVE FILTERING 有权
    自适应滤波

    公开(公告)号:US20100284458A1

    公开(公告)日:2010-11-11

    申请号:US12811595

    申请日:2008-10-08

    IPC分类号: H04N7/26

    摘要: A method and device for determining an adaptive filter having multiple filter parameters, wherein a first filter parameter has a first level of adaptivity and a second filter parameter has a second, different level of adaptivity. Parameter values for the first filter parameter are determined among a first set of allowable filter parameter values. Parameter values for the second filter parameter are correspondingly determined among a second, different set of allowable filter parameter values. The different levels of adaptivity in the filter parameters are achieved because the second set includes more allowable filter parameter values than the first set. The adaptive filter is advantageously used in filtering in intra- or inter-predication during video encoding and decoding.

    摘要翻译: 一种用于确定具有多个滤波器参数的自适应滤波器的方法和装置,其中第一滤波器参数具有第一水平的自适应性,而第二滤波器参数具有第二不同的自适应水平。 在第一组允许的滤波器参数值中确定第一滤波器参数的参数值。 第二过滤器参数的参数值在第二个不同的允许过滤器参数值集合中相应地确定。 由于第二组包含比第一组更多的可允许的滤波器参数值,所以实现了滤波器参数中不同的自适应水平。 自适应滤波器有利地用于在视频编码和解码期间的帧内或帧间预测中的滤波。

    Adaptive filtering
    16.
    发明授权
    Adaptive filtering 有权
    自适应滤波

    公开(公告)号:US08576906B2

    公开(公告)日:2013-11-05

    申请号:US12811595

    申请日:2008-10-08

    IPC分类号: H04N7/12 H04N11/02 H04N11/04

    摘要: A method and device for determining an adaptive filter having multiple filter parameters, wherein a first filter parameter has a first level of adaptivity and a second filter parameter has a second, different level of adaptivity. Parameter values for the first filter parameter are determined among a first set of allowable filter parameter values. Parameter values for the second filter parameter are correspondingly determined among a second, different set of allowable filter parameter values. The different levels of adaptivity in the filter parameters are achieved because the second set includes more allowable filter parameter values than the first set. The adaptive filter is advantageously used in filtering in intra- or inter-predication during video encoding and decoding.

    摘要翻译: 一种用于确定具有多个滤波器参数的自适应滤波器的方法和装置,其中第一滤波器参数具有第一水平的自适应性,而第二滤波器参数具有第二不同的自适应水平。 在第一组允许的滤波器参数值中确定第一滤波器参数的参数值。 第二过滤器参数的参数值在第二个不同的允许过滤器参数值集合中相应地确定。 由于第二组包含比第一组更多的可允许的滤波器参数值,所以实现了滤波器参数中不同的自适应水平。 自适应滤波器有利地用于在视频编码和解码期间的帧内或帧间预测中的滤波。

    Depth and Video Co-Processing
    17.
    发明申请
    Depth and Video Co-Processing 有权
    深度和视频协同处理

    公开(公告)号:US20110285813A1

    公开(公告)日:2011-11-24

    申请号:US13146380

    申请日:2009-05-07

    IPC分类号: H04N13/00

    摘要: Co-processing of a video frame (32) and its associated depth map (34) suitable for free viewpoint television involves detecting respective edges (70, 71, 80, 81) in the video frame (32) and the depth map (34). The edges (70, 71, 80, 81) are aligned and used to identify any pixels (90-92) in the depth map (34) or the video frame (32) having incorrect depth values or color values based on the positions of the pixels in the depth map (34)or the video frame (32) relative an edge (80) in 5 the depth map (34) and a corresponding, aligned edge (70) in the video frame (32). The depth values or color values of the identified pixels (90-92) can then be corrected in order to improve the accuracy of the depth map (32) or video frame (34).

    摘要翻译: 适用于自由视点电视的视频帧(32)及其相关联的深度图(34)的协处理涉及检测视频帧(32)和深度图(34)中的相应边缘(70,71,80,81) 。 边缘(70,71,80,81)对准并用于识别深度图(34)中的任何像素(90-92)或具有不正确的深度值或颜色值的视频帧(32),基于 深度图(34)中的像素或视频帧(32)相对于深度图(34)中的边缘(80)和视频帧(32)中的对应的对准边缘(70)。 然后可以校正所识别的像素(90-92)的深度值或颜色值,以便提高深度图(32)或视频帧(34)的精度。

    Pixel Prediction for Video Coding
    18.
    发明申请
    Pixel Prediction for Video Coding 有权
    视频编码的像素预测

    公开(公告)号:US20110007801A1

    公开(公告)日:2011-01-13

    申请号:US12808958

    申请日:2008-07-16

    IPC分类号: H04N7/32

    摘要: Method of encoding an input video frame into an encoded video frame. The method comprises the steps of disassembling the input video frame into a plurality of blocks of pixels; and for each block being a current block, generating a corresponding predicted block from already reconstructed pixels, generating a residual block by subtracting the predicted block from the current block, and generating a reconstructed block from the residual block and the predicted block, generating the encoded video frame from the residual block, creating a local structure of reconstructed pixels in a region of the predicted block and aligning the predicted block with the local structure to produce an aligned predicted block, wherein the aligned predicted block is used in the steps of generating the residual block and generating the corresponding reconstructed block. A corresponding method for decoding the encoded video frame into a decoded video frame also uses a step of creating a local structure of reconstructed pixels in a region of the predicted block and aligning the predicted block with the local structure to produce an aligned predicted block.

    摘要翻译: 将输入视频帧编码成编码视频帧的方法。 该方法包括将输入视频帧分解为多个像素块的步骤; 并且对于每个块是当前块,从已经重建的像素生成对应的预测块,通过从当前块中减去预测块产生残差块,并从残差块和预测块生成重构块, 视频帧,在所述预测块的区域中创建重建像素的局部结构,并将所述预测块与所述局部结构对准以产生对准的预测块,其中所述对准预测块用于生成 剩余块并生成相应的重建块。 用于将编码视频帧解码为解码视频帧的相应方法还使用在预测块的区域中创建重建像素的局部结构并将预测块与局部结构对准以产生对准预测块的步骤。