Temporal Prediction Structure Aware Temporal Filter
    2.
    发明申请
    Temporal Prediction Structure Aware Temporal Filter 审中-公开
    时间预测结构意识时间滤波

    公开(公告)号:US20120183055A1

    公开(公告)日:2012-07-19

    申请号:US13008556

    申请日:2011-01-18

    IPC分类号: H04N7/32

    摘要: Disclosed are a system, method, apparatus, and computer readable media containing instructions for pre-filtering one or more pictures of a prediction structure. In an exemplary embodiment, a system includes an input for receiving the one or more pictures and a pre-filter, operatively coupled to the input and receiving the one or more pictures. The pre-filter can include a prediction position determining module for determining a position of at least one picture in the prediction structure, a context memory for storing determined position information, and a filter module for selecting a filter context based on the determined position and using the selected filter context to filter the at least one picture.

    摘要翻译: 公开了一种包含用于对预测结构的一个或多个图像进行预过滤的指令的系统,方法,装置和计算机可读介质。 在示例性实施例中,系统包括用于接收一个或多个图像的输入端和可操作地耦合到输入端并接收一个或多个图像的预滤波器。 预滤波器可以包括用于确定预测结构中的至少一个图像的位置的预测位置确定模块,用于存储确定的位置信息的上下文存储器和用于基于所确定的位置选择过滤器上下文的过滤器模块,并且使用 所选择的过滤器上下文来过滤至少一个图像。

    Low Complexity, High Frame Rate Video Encoder
    3.
    发明申请
    Low Complexity, High Frame Rate Video Encoder 审中-公开
    低复杂度,高帧率视频编码器

    公开(公告)号:US20110182354A1

    公开(公告)日:2011-07-28

    申请号:US13007193

    申请日:2011-01-14

    IPC分类号: H04N7/26

    CPC分类号: H04N19/174 H04N19/132

    摘要: Disclosed herein are techniques and computer readable media containing instructions arranged to utilize existing video compression techniques to enhance a visually appealing high frame rate, without incurring the bitrate and computational complexity common to high frame rate coding using conventional techniques. SVC skip slices—slices in which the slice_skip_flag in the slice header is set to a value of 1—require very few bits in the bitstream, thereby keeping the bitrate overhead very low. Also, when using an appropriate implementation, the computational requirements for coding an enhancement layer picture consisting entirely of skipped slices are almost negligible. In addition, skipped slices in an enhancement layer inherit motion information from the base layer(s), thereby minimizing, if not eliminating, the possibly bad correlation between nonlinear motion and linear interpolation. Further, the issue of radical brightness changes of a picture (or significant part thereof) does not exist, as the base layer is coded at full frame rate and can contain information related to the brightness change that can also be inherited by the enhancement layer.

    摘要翻译: 这里公开的技术和计算机可读介质包含被布置为利用现有的视频压缩技术来增强视觉上吸引人的高帧速率的指令,而不会产生使用常规技术的高帧率编码所共有的比特率和计算复杂度。 SVC跳过片段,其中片头部中的slice_skip_flag被设置为值1,在比特流中需要非常少的比特,从而保持比特率开销非常低。 此外,当使用适当的实现时,对完全由跳过的片组成的增强层图像的编码的计算要求几乎可以忽略不计。 另外,增强层中的跳过的片段从基层继承运动信息,从而最小化(如果不消除)非线性运动和线性内插之间的可能的不良相关性。 此外,由于基层以全帧速率编码并且可以包含与增强层也可以继承的亮度变化相关的信息,因此不存在图像(或其重要部分)的根本性亮度变化的问题。

    Automatic temporal layer bit allocation
    5.
    发明授权
    Automatic temporal layer bit allocation 有权
    自动时间层位分配

    公开(公告)号:US08537900B2

    公开(公告)日:2013-09-17

    申请号:US12897365

    申请日:2010-10-04

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

    摘要: Disclosed herein are techniques and computer readable media containing instructions arranged to determine a bit allocation for a temporal base layer and at least one temporal enhancement layer. The techniques are enhanced to yield improved reproduced quality for the case where both a temporal base layer and at least one temporal enhancement layer is being used. An exemplary method for determining a bit allocation to one base layer includes initializing a bit allocation between the base layer and the at least one enhancement layer, determining a quality difference between the base layer and the at least one enhancement layer, expressed, for example, in the Quantizer Parameter of the last picture of each layer within a GOP, and determining a new bit allocation between the base layer and the at least one enhancement layer based on the quality difference and at least one constant factor.

    摘要翻译: 这里公开的技术和计算机可读介质包含被布置为确定时间基础层和至少一个时间增强层的比特分配的指令。 增强这些技术以在使用时基基层和至少一个时间增强层的情况下产生改进的再现质量。 用于确定对一个基本层的比特分配的示例性方法包括初始化基本层和至少一个增强层之间的比特分配,确定基本层和至少一个增强层之间的质量差异,例如, 在GOP的每个层的最后图像的量化器参数中,并且基于质量差异和至少一个常数因子确定基本层和至少一个增强层之间的新的比特分配。

    Delay aware rate control in the context of hierarchical P picture coding
    6.
    发明授权
    Delay aware rate control in the context of hierarchical P picture coding 有权
    在分层P图像编码的上下文中的延迟感知速率控制

    公开(公告)号:US08750373B2

    公开(公告)日:2014-06-10

    申请号:US13010570

    申请日:2011-01-20

    IPC分类号: H04N7/12

    摘要: The present invention provides bit rate control techniques for a hybrid block based motion compensated predictive video encoder (e.g., H.264, as well as other video coding algorithms and standards). The techniques aim to reduce the picture-to-picture bit rate fluctuations within a prediction structure or over a short time interval that can lead to undesirable additional delay on links without over-provisioned capacity. In one embodiment of the present invention, the end to end delay is estimated. The end to end delay is used to determine limits on the modulation of the target coded picture size, with the goal of trading an acceptable amount of additional delay for a better coding efficiency.

    摘要翻译: 本发明提供了一种用于基于混合块的运动补偿预测视频编码器(例如,H.264以及其他视频编码算法和标准)的比特率控制技术。 这些技术旨在减少预测结构内的图像到图像比特率波动,或者在短时间间隔内,这可能导致链路上不期望的附加延迟而没有过度提供的容量。 在本发明的一个实施例中,估计端到端延迟。 端到端延迟用于确定目标编码图像大小的调制限制,目的是交换可接受的额外延迟量以获得更好的编码效率。

    Scalable Video Coding Techniques
    7.
    发明申请
    Scalable Video Coding Techniques 审中-公开
    可扩展视频编码技术

    公开(公告)号:US20130003833A1

    公开(公告)日:2013-01-03

    申请号:US13529159

    申请日:2012-06-21

    IPC分类号: H04N7/32

    摘要: The disclosed subject matter provides techniques for inter-layer prediction using difference mode or pixel mode. In difference mode, inter-layer prediction is used to predict at least one sample of an enhancement layer from at least one (upsampled) sample of a reconstructed base layer picture. In pixel mode, no reconstructed base layer samples are used for reconstruction of the enhancement layer sample, A flag that can be part of a coding unit header in the enhancement layer can be used to distinguish between pixel mode and difference mode.

    摘要翻译: 所公开的主题提供了使用差异模式或像素模式进行层间预测的技术。 在差模式中,层间预测用于从重建的基层图像的至少一个(上采样)采样来预测增强层的至少一个样本。 在像素模式中,没有重构的基本层样本用于重建增强层样本,可以使用可以作为增强层中的编码单元头部的一部分的标志来区分像素模式和差异模式。

    Automatic Temporal Layer Bit Allocation
    8.
    发明申请
    Automatic Temporal Layer Bit Allocation 有权
    自动时域分配

    公开(公告)号:US20120082237A1

    公开(公告)日:2012-04-05

    申请号:US12897365

    申请日:2010-10-04

    IPC分类号: H04N7/26

    摘要: Disclosed herein are techniques and computer readable media containing instructions arranged to determine a bit allocation for a temporal base layer and at least one temporal enhancement layer. The techniques are enhanced to yield improved reproduced quality for the case where both a temporal base layer and at least one temporal enhancement layer is being used. An exemplary method for determining a bit allocation to one base layer includes initializing a bit allocation between the base layer and the at least one enhancement layer, determining a quality difference between the base layer and the at least one enhancement layer, expressed, for example, in the Quantizer Parameter of the last picture of each layer within a GOP, and determining a new bit allocation between the base layer and the at least one enhancement layer based on the quality difference and at least one constant factor.

    摘要翻译: 这里公开的技术和计算机可读介质包含被布置为确定时间基础层和至少一个时间增强层的比特分配的指令。 增强这些技术以在使用时基基层和至少一个时间增强层的情况下产生改进的再现质量。 用于确定对一个基本层的比特分配的示例性方法包括初始化基本层和至少一个增强层之间的比特分配,确定基本层和至少一个增强层之间的质量差异,例如, 在GOP的每个层的最后图像的量化器参数中,并且基于质量差异和至少一个常数因子确定基本层和至少一个增强层之间的新的比特分配。

    Delay Aware Rate Control In The Context Of Hierarchical P Picture Coding
    9.
    发明申请
    Delay Aware Rate Control In The Context Of Hierarchical P Picture Coding 有权
    在分层P图像编码的背景下的延迟感知速率控制

    公开(公告)号:US20120082214A1

    公开(公告)日:2012-04-05

    申请号:US13010570

    申请日:2011-01-20

    IPC分类号: H04N7/26 H04N7/32

    摘要: The present invention provides bit rate control techniques for a hybrid block based motion compensated predictive video encoder (e.g., H.264, as well as other video coding algorithms and standards). The techniques aim to reduce the picture-to-picture bit rate fluctuations within a prediction structure or over a short time interval that can lead to undesirable additional delay on links without over-provisioned capacity. In one embodiment of the present invention, the end to end delay is estimated. The end to end delay is used to determine limits on the modulation of the target coded picture size, with the goal of trading an acceptable amount of additional delay for a better coding efficiency.

    摘要翻译: 本发明提供了一种用于基于混合块的运动补偿预测视频编码器(例如,H.264以及其他视频编码算法和标准)的比特率控制技术。 这些技术旨在减少预测结构内的图像到图像比特率波动,或者在短时间间隔内,这可能导致链路上不期望的附加延迟而没有过度提供的容量。 在本发明的一个实施例中,估计端到端延迟。 端到端延迟用于确定目标编码图像大小的调制限制,目的是交换可接受的额外延迟量以获得更好的编码效率。