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    Scalable video encoding rate adaptation based on perceived quality
    52.
    发明授权
    Scalable video encoding rate adaptation based on perceived quality 有权
    基于感知质量的可扩展视频编码速率适应

    公开(公告)号：US09591316B2

    公开(公告)日：2017-03-07

    申请号：US14227729

    申请日：2014-03-27

    申请人： Vered Bar Bracha ,  Segev Ravgad ,  Tal Taz Azogui ,  Yiting Liao ,  Vallabhajosyula Zulu Somayazulu

    发明人： Vered Bar Bracha ,  Segev Ravgad ,  Tal Taz Azogui ,  Yiting Liao ,  Vallabhajosyula Zulu Somayazulu

    IPC分类号： H04N19/37 ,  H04N19/36 ,  H04N19/132 ,  H04N19/164 ,  H04N19/187 ,  H04N19/33 ,  H04N19/31

    CPC分类号： H04N19/36 ,  H04N19/132 ,  H04N19/152 ,  H04N19/154 ,  H04N19/164 ,  H04N19/187 ,  H04N19/31 ,  H04N19/33 ,  H04N19/65

    摘要： Multi-layered video structures are scaled over a range of perceived quality levels. An estimated Mean Opinion Score (eMOS)-based encoder control loop is utilized to determine one or more encoder key performance index (KPI) associated with a particular perceived quality level. A KPI-based encoder control loop is then utilized to guide generation of a hierarchical structure having quality and/or temporal and/or spatial enhancement layers, without recalculating eMOS for the scalable structure. In addition, eMOS is used to guide the generation of a hierarchical structure at best-perceived quality levels for a given bitrate budget. Rate adaptation may occur by dropping segments, changing hierarchical structure, or changing the KPI target values. With the structure scaled as a function of perceived quality, perceived quality is impacted predictably as the encoding rate is adapted.

    摘要翻译： 多层视频结构在一系列感知质量水平上缩放。 使用基于平均意见得分（eMOS）的编码器控制环来确定与特定感知质量水平相关联的一个或多个编码器关键性能指标（KPI）。 然后，基于KPI的编码器控制环路用于指导具有质量和/或时间和/或空间增强层的层次结构的生成，而不重新计算用于可伸缩结构的eMOS。 此外，eMOS用于指定给定比特率预算的最佳感知质量水平的层次结构生成。 速率调整可以通过丢弃段，改变层次结构或改变KPI目标值而发生。 随着结构作为感知质量的函数而变化，随着编码率的改变，感知质量受到可预测的影响。

    VIDEO ENCODING AND DECODING
    54.
    发明申请
    VIDEO ENCODING AND DECODING 审中-公开
    视频编码和解码

    公开(公告)号：US20150103927A1

    公开(公告)日：2015-04-16

    申请号：US14514087

    申请日：2014-10-14

    申请人： Nokia Corporation

    发明人： Miska Matias Hannuksela

    IPC分类号： H04N19/37

    CPC分类号： H04N19/597 ,  H04N19/119 ,  H04N19/127 ,  H04N19/159 ,  H04N19/187 ,  H04N19/30 ,  H04N19/70

    摘要： There are disclosed various methods, apparatuses and computer program products for video encoding. In some embodiments pictures are encoded into a bitstream. The bitstream comprises at least two scalability layers and pictures being associated with access units. A first indication and a second indication are encoded into the bitstream. The first indication is configured to indicate an output layer. And the second indication is configured to indicate at least one alternative output layer. A first picture of said at least one alternative output layer is output by a decoding process of the bitstream when no picture of the output layer is in an access unit containing said first picture of said at least one alternative output layer.

    摘要翻译： 公开了用于视频编码的各种方法，装置和计算机程序产品。 在一些实施例中，图像被编码成比特流。 比特流包括至少两个可扩展性层和与访问单元相关联的图片。 第一指示和第二指示被编码到比特流中。 第一指示被配置为指示输出层。 并且第二指示被配置为指示至少一个备选输出层。 当所述输出层的图像在包含所述至少一个备选输出层的所述第一图像的存取单元中时，所述至少一个备选输出层的第一图像是通过比特流的解码处理来输出的。

    DEVICE AND METHOD FOR SCALABLE CODING OF VIDEO INFORMATION
    55.
    发明申请
    DEVICE AND METHOD FOR SCALABLE CODING OF VIDEO INFORMATION 有权
    视频信息可扩展编码的设备和方法

    公开(公告)号：US20150103923A1

    公开(公告)日：2015-04-16

    申请号：US14513034

    申请日：2014-10-13

    申请人： QUALCOMM Incorporated

    发明人： Adarsh Krishnan RAMASUBRAMONIAN ,  Ying CHEN ,  Ye-Kui WANG ,  Fnu HENDRY

    IPC分类号： H04N19/37

    CPC分类号： H04N19/187 ,  H04N19/30 ,  H04N19/46 ,  H04N19/68 ,  H04N19/70 ,  H04N19/80 ,  H04N19/86

    摘要： An apparatus configured to code video information includes a memory unit and a processor in communication with the memory unit. The memory unit is configured to store video information associated with a video layer having a picture. The processor is configured to determine whether the picture is a non-picture-order-count (POC)-anchor picture, and based on the determination of whether the picture is a non-POC-anchor picture, perform one of (1) refraining from indicating a POC reset in connection with the picture, or (2) indicating the POC reset in connection with the picture. The processor may encode or decode the video information.

    摘要翻译： 被配置为对视频信息进行编码的装置包括与存储器单元通信的存储器单元和处理器。 存储单元被配置为存储与具有图像的视频层相关联的视频信息。 处理器被配置为确定图像是非图像顺序计数（POC）图像，并且基于图像是否是非POC锚图像的确定，执行以下中的一个：（1）避免 指示与图像相关的POC复位，或（2）指示与图像相关的POC复位。 处理器可以对视频信息进行编码或解码。

    Distributed video surveillance storage cost reduction using statistical multiplexing principle
    56.
    发明授权
    Distributed video surveillance storage cost reduction using statistical multiplexing principle 有权
    使用统计复用原理分散式视频监控存储成本降低

    公开(公告)号：US08953038B2

    公开(公告)日：2015-02-10

    申请号：US12550554

    申请日：2009-08-31

    申请人： Ligang Lu ,  Vadim Sheinin

    发明人： Ligang Lu ,  Vadim Sheinin

    IPC分类号： H04N7/18 ,  H04N11/02 ,  H04N11/04 ,  H04N19/37 ,  H04N19/147 ,  H04N19/149 ,  H04N19/115 ,  H04N19/124 ,  H04N19/40

    CPC分类号： H04N7/181 ,  H04N19/115 ,  H04N19/124 ,  H04N19/147 ,  H04N19/149 ,  H04N19/37 ,  H04N19/40

    摘要： A plurality of data streams are obtained; they may be compressed, uncompressed, or a mixture of compressed and uncompressed. Statistical parameters associated with each of the data streams are determined. A plurality of storage constraints are obtained. A plurality of output bit rates are determined for encoding or transcoding, as the case may be, each of the data streams, based on the statistical parameters and the storage constraints. The output bit rates are determined to jointly reduce (and preferably minimize) an overall cost. The overall cost includes the cost associated with storing compressed versions of the data streams. For each of the data streams, the encoding or transcoding into the compressed versions, is carried out in accordance with the output bit rates.

    摘要翻译： 获得多个数据流; 它们可以被压缩，未压缩，或压缩和未压缩的混合物。 确定与每个数据流相关联的统计参数。 获得多个存储约束。 基于统计参数和存储约束，确定多个输出比特率用于编码或代码转换（视情况而定）每个数据流。 确定输出比特率以共同减少（并优选最小化）整体成本。 总体成本包括与存储数据流的压缩版本相关联的成本。 对于每个数据流，根据输出比特率执行编码或转码为压缩版本。

    Method and apparatus for processing video signal
    60.
    发明授权
    Method and apparatus for processing video signal 有权

    公开(公告)号：US11889064B2

    公开(公告)日：2024-01-30

    申请号：US18139005

    申请日：2023-04-25

    申请人： KT CORPORATION

    发明人： Bae Keun Lee

    IPC分类号： H04N19/37 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52 ,  H04N19/96

    CPC分类号： H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/52 ,  H04N19/96

    摘要： An image decoding method according to the present invention may comprise the steps of: deriving a merge candidate from a candidate block; generating a first merge candidate list including the merge candidate; specifying any one of a plurality of merge candidates included in the first merge candidate list; deriving affine vectors of a current block on the basis of motion information of the specified merge candidate; deriving a motion vector of a sub-block in the current block on the basis of the affine vectors; and performing motion compensation on the sub-block on the basis of the motion vector.