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1. 发明申请

WO2012058394A1 SYSTEMS AND METHODS FOR ADAPTIVE VIDEO CODING 审中-公开
标题翻译：用于自适应视频编码的系统和方法
公开(公告)号：WO2012058394A1
公开(公告)日：2012-05-03
申请号：PCT/US2011/058027
申请日：2011-10-27
申请人： VID SCALE, INC. , DOKEN, Serhad , CHEN, Zhifeng , DONG, Jie , YE, Yan
发明人： DOKEN, Serhad , CHEN, Zhifeng , DONG, Jie , YE, Yan
IPC分类号： H04N7/26 , H04N7/30 , H04N7/46
CPC分类号： H04N19/59 , H04N19/117 , H04N19/146 , H04N19/147 , H04N19/172 , H04N19/189 , H04N19/196 , H04N19/587 , H04N19/60 , H04N19/85
摘要： Systems and methods are described for determining an optimised sampling ratio for coding video data that reduces overall distortion introduced by the coding process. It seeks to balance the information loss introduced during downsampling and the information loss introduced during coding. The sampling ratio is generally determined by reducing, or in some cases minimizing, the overall error introduced through the downsampling process and the coding process, and may be adaptive based on the content of the video data being processed and a target bit rate. Computation power can be saved by coding a downsampled video. The process derives a plurality of downsampling ratios, and selects a downsampling ratio that reduces the total amount of distortion introduced during the down - sampling and coding stages. The down - sampling ratio may be selected given the available data transmission capacity, input video signal statistics, and/or other operational parameters, and may optimally reduce the overall distortion.
摘要翻译：描述了用于确定用于编码视频数据的优化采样率的系统和方法，其减少由编码过程引入的整体失真。它寻求平衡在下采样期间引入的信息丢失和编码期间引入的信息丢失。采样率通常通过减小或在一些情况下最小化通过下采样处理和编码处理引入的总体误差来确定，并且可以基于正在处理的视频数据的内容和目标比特率来自适应。可以通过对下采样视频进行编码来节省计算功率。该过程导出多个下采样比，并且选择降低在下采样和编码阶段期间引入的失真总量的下采样比。给定可用数据传输容量，输入视频信号统计和/或其他操作参数可以选择下采样比，并且可以最佳地降低整体失真。

2. 发明申请

WO2012109528A1 EDGE-BASED VIDEO INTERPOLATION FOR VIDEO AND IMAGE UPSAMPLING 审中-公开
标题翻译：基于边缘的视频插值视频和图像UPSAMPLING
公开(公告)号：WO2012109528A1
公开(公告)日：2012-08-16
申请号：PCT/US2012/024630
申请日：2012-02-10
申请人： VID SCALE, INC. , VANAM, Rahul , YE, Yan , DOKEN, Serhad
发明人： VANAM, Rahul , YE, Yan , DOKEN, Serhad
IPC分类号： G06T3/40
CPC分类号： G06T3/403
摘要： Edge-based interpolation for upsampling. One method may include determining an edge characteristic associated with an interpolation point, the edge characteristic having an edge magnitude and an edge angle; selecting an interpolation filter in response to the edge angle; and determining a pixel value at the interpolation point using the selected interpolation filter. Other embodiments include edge-based interpolation followed by an adaptive sharpening filter. The sharpening filter is controlled by the edge-based interpolation parameters that determine the pixels to be sharpened and the sharpening strength.
摘要翻译：用于上采样的基于边缘的插值。一种方法可以包括确定与内插点相关联的边缘特性，边缘特征具有边缘幅度和边缘角度; 响应于边缘角度选择内插滤波器; 以及使用所选择的内插滤波器来确定所述插值点处的像素值。其他实施例包括基于边缘的内插，随后是自适应锐化滤波器。锐化滤波器由基于边缘的插值参数控制，确定要锐化的像素和锐化强度。

3. 发明申请

WO2013040287A1 SYSTEMS AND METHODS FOR SPATIAL PREDICTION 审中-公开
标题翻译：用于空间预测的系统和方法
公开(公告)号：WO2013040287A1
公开(公告)日：2013-03-21
申请号：PCT/US2012/055280
申请日：2012-09-14
申请人： VID SCALE, INC. , YE, Yan , CHEN, Qian , DONG, Jie
发明人： YE, Yan , CHEN, Qian , DONG, Jie
IPC分类号： H04N7/26 , H04N7/30 , H04N7/50 , H04N7/34
CPC分类号： H04N19/52 , H04N19/11 , H04N19/119 , H04N19/124 , H04N19/14 , H04N19/176 , H04N19/182 , H04N19/46 , H04N19/59 , H04N19/593 , H04N19/649 , H04N19/80 , H04N19/90
摘要： Systems, methods, and instrumentalities are disclosed relating to intra prediction of a video signal based on mode-dependent subsampling. A block of coefficients associated with a first sub block of a video block, one or more blocks of coefficients associated with one or more remaining sub blocks of the video block, and an indication of a prediction mode for the video block may be received. One or more interpolating techniques, a predicted first sub block, and the predicted sub blocks of the one or more remaining sub blocks may be determined. A. reconstructed first sub block and one or more reconstructed remaining sub blocks may be generated. A reconstructed video block may be formed based on the prediction mode, the reconstructed first sub block, and the one or more reconstructed remaining sub blocks.
摘要翻译：公开了关于基于模式相关次采样的视频信号的帧内预测的系统，方法和工具。可以接收与视频块的第一子块相关联的系数块，与视频块的一个或多个剩余子块相关联的一个或多个系数块，以及用于视频块的预测模式的指示。可以确定一个或多个内插技术，预测的第一子块和一个或多个剩余子块的预测子块。可以生成重构的第一子块和一个或多个重构的剩余子块。可以基于预测模式，重建的第一子块以及一个或多个重建的剩余子块来形成重构的视频块。

4. 发明申请

WO2020069076A1 BI-PREDICTION FOR VIDEO CODING 审中-公开
公开(公告)号：WO2020069076A1
公开(公告)日：2020-04-02
申请号：PCT/US2019/053088
申请日：2019-09-26
申请人： VID SCALE, INC.
发明人： HE, Yuwen , LUO, Jiancong , XIU, Xiaoyu , YE, Yan
IPC分类号： H04N19/137 , H04N19/159
摘要： Systems, methods, and instrumentalities may be provided for determining whether to bypass bi-directional optical flow (BDOF) if BDOF is used in combination with bi-prediction with coding unit (CU) weights ( e.g ., generalized bi-prediction (GBi)). A coding system may combine coding modes, coding techniques, and/or coding tools. The coding system may include a wireless transmit/receive unit (WTRU). For example, the coding system may combine BDOF and bi-prediction with GU weights (BCW). BDOF may include refining a motion vector associated with a current CU based at least in part on gradients associated with a location in the current CU. The coding system may determine that BDOF is enabled, and/or that bi-prediction with CU weights is enabled for the current CU. The coding system's determination that bi-prediction with CU weights is enabled and/or that BDOF is enabled may be based on one or more indications.

5. 发明申请

WO2020056247A1 METHODS AND APPARATUS FOR FLEXIBLE GRID REGIONS 审中-公开
公开(公告)号：WO2020056247A1
公开(公告)日：2020-03-19
申请号：PCT/US2019/051000
申请日：2019-09-13
申请人： VID SCALE, INC.
发明人： HE, Yong , YE, Yan , HAMZA, Ahmed
IPC分类号： H04N19/119 , H04N19/167 , H04N19/174 , H04N19/563
摘要： Methods and apparatus for using flexible grid regions in picture or video frames are disclosed. In one embodiment, a method includes receiving a set of first parameters that defines a plurality of first grid regions comprising a frame. For each first grid region, the method includes receiving a set of second parameters that defines a plurality of second grid regions, and the plurality of second grid regions partitions the respective first grid region. The method further includes partitioning the frame into the plurality of first grid regions based on the set of first parameters, and partitioning each first grid region into the plurality of second grid regions based on the respective set of second parameters.

6. 发明申请

WO2020047132A1 ADAPTIVE MOTION VECTOR PRECISION FOR AFFINE MOTION MODEL BASED VIDEO CODING 审中-公开
公开(公告)号：WO2020047132A1
公开(公告)日：2020-03-05
申请号：PCT/US2019/048615
申请日：2019-08-28
申请人： VID SCALE, INC.
发明人： HE, Yuwen , XIU, Xiaoyu , YE, Yan , LUO, Jiancong
IPC分类号： H04N19/109 , H04N19/13 , H04N19/134 , H04N19/147 , H04N19/176 , H04N19/184 , H04N19/52 , H04N19/523 , H04N19/54
摘要： Systems and methods are described for video coding using affine motion models with adaptive precision. In an example, a block of video is encoded in a bitstream using an affine motion model, where the affine motion model is characterized by at least two motion vectors. A precision is selected for each of the motion vectors, and the selected precisions are signaled in the bitstream. In some embodiments, the precisions are signaled by including in the bitstream information that identifies one of a plurality of elements in a selected predetermined precision set. The identified element indicates the precision of each of the motion vectors that characterize the affine motion model. In some embodiments, the precision set to be used is signaled expressly in the bitstream; in other embodiments, the precision set may be inferred, e.g., from the block size, block shape or temporal layer.

7. 发明申请

WO2019148117A1 FRAME-RATE UP CONVERSION WITH LOW COMPLEXITY 审中-公开
公开(公告)号：WO2019148117A1
公开(公告)日：2019-08-01
申请号：PCT/US2019/015449
申请日：2019-01-28
申请人： VID SCALE, INC.
发明人： XIU, Xiaoyu , HE, Yuwen , YE, Yan
IPC分类号： H04N19/57 , H04N19/56
摘要： Systems and methods are described for selecting a motion vector (MV) to use in frame-rate up conversion (FRUC) coding of a block of video. In one embodiment, a first set of motion vector candidates is identified for FRUC prediction of the block. A search center is defined based on the first set of motion vector candidates, and a search window is determined, the search window having a selected width and being centered on the search center. A search for a selected MV is performed within the search window. In some embodiments, an initial set of MVs is processed with a clustering algorithm to generate a smaller number of MVs that are used as the first set. The selected MV may be subject to a motion refinement search, which may also be performed over a constrained search range. In additional embodiments, search iterations are constrained to limit complexity.

8. 发明申请

WO2019070686A1 CUSTOMIZED 360-DEGREE MEDIA VIEWING 审中-公开
公开(公告)号：WO2019070686A1
公开(公告)日：2019-04-11
申请号：PCT/US2018/053939
申请日：2018-10-02
申请人： VID SCALE, INC.
发明人： HE, Yong , YE, Yan , BEGEN, Ali C. , HAMZA, Ahmed
IPC分类号： H04N21/218 , H04N21/2343 , H04N21/258 , H04N21/262 , H04N21/41 , H04N21/422 , H04N21/4223 , H04N21/431 , H04N21/442 , H04N21/45 , H04N21/454 , H04N21/4545 , H04N21/462 , H04N21/81 , H04N21/84 , H04N21/845 , H04N21/441 , H04N21/475
摘要： A device may be configured to render at least one spatial region of 360-degree media content, which may include two or more spatial regions. The device may include a receiver configured to receive the 360- degree media content and metadata associated with the 360-degree content. The metadata may include a classification of a respective spatial region of the 360-degree media content. The device may further include a memory configured to store a user preference and a sensor configured to detect a user movement. The device may include a processor configured to determine that the user movement is associated with a rendering of the respective spatial region. The processor may further determine whether the classification complies with the user preference and alter the rendering of the respective spatial region if the classification violates the user preference.

9. 发明申请

WO2019032765A8 FRAME-RATE UP CONVERSION WITH REDUCED COMPLEXITY 审中-公开
公开(公告)号：WO2019032765A8
公开(公告)日：2019-02-14
申请号：PCT/US2018/045900
申请日：2018-08-09
申请人： VID SCALE, INC.
发明人： XIU, Xiaoyu , HE, Yuwen , YE, Yan , ZHANG, Yan
IPC分类号： H04N19/56 , H04N19/139 , H04N19/176 , H04N19/70 , H04N19/109
摘要： When a FRUC mode is enabled for a current coding unit (CU), motion vector (MV) candidates may be derived for the current CU, One or more search MVs may be derived from the MV candidates so that an initiai motion search may be performed for the current CU using the search MVs. The search MVs, which may be fewer than the MV candidates for the CU, may be derived based on one or more attributes of the MV candidates. At the sub-CU level, sub-CU MV candidates may be determined for a current sub-CU. Sub-CU search MVs may be derived from the sub-CU MV candidates for the current sub-CU so that a motion search may be performed for the current sub-CU using the sub-CU search MVs. The number of the sub-CU search MVs may be smaller than the number of the sub-CU MV candidates.

10. 发明申请

WO2018222996A1 360-DEGREE VIDEO DELIVERY OVER NEXT GENERATION NETWORK 审中-公开
公开(公告)号：WO2018222996A1
公开(公告)日：2018-12-06
申请号：PCT/US2018/035607
申请日：2018-06-01
申请人： VID SCALE, INC.
发明人： HE, Yong , YE, Yan
IPC分类号： H04N21/00 , H04N21/2343 , H04N21/218 , H04N21/4728 , H04N21/6587 , H04N21/81
摘要： Systems, methods, and instrumentalities are disclosed for a 360-degree video streaming. A video streaming device may receive a 360-degree video stream from a network node. The video streaming device may determine a viewport associated with the video streaming device and/or the 360-degree video stream. The video streaming device may determine (e.g., based on the viewport} to request in advance a first segment and a second segment of the 360-degree video stream. The video streaming device may determine a relative priority order for the first segment and the second segment. The video streaming device may generate an anticipated requests message. The anticipated requests message may indicate the determined relative priority order, for example, by listing the first segment and the second segment in decreasing relative priority based on the determined relative priority order. The video streaming device may send the anticipated requests message to the network node.

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