公开(公告)号：US10250908B2

公开(公告)日：2019-04-02

申请号：US15470556

申请日：2017-03-27

申请人： QUALCOMM Incorporated

发明人： Peisong Chen ,  Xianglin Wang ,  Marta Karczewicz

IPC分类号： H04N19/615 ,  H04N19/52 ,  H04N19/119 ,  H04N19/122 ,  H04N19/137 ,  H04N19/17 ,  H04N19/537 ,  H04N19/543 ,  H04N19/174 ,  H04N19/176 ,  H04N19/513 ,  H04N19/66

摘要： In one example, an apparatus includes a video encoder configured to partition a block of video data into a first geometric partition and a second geometric partition using a geometric motion partition line, wherein the block comprises N×N pixels, divide the block of video data into four equally-sized, non-overlapping (N/2)×(N/2) sub-blocks, and encode at least one of the sub-blocks through which the geometric motion partition line passes using a transform size smaller than (N/2)×(N/2). The video encoder may determine transform sizes for the sub-blocks based on whether the geometric motion partition line passes through the sub-blocks. In one example, a video decoder may inverse transform the sub-blocks, and may determine transform sizes for the sub-blocks based on whether the geometric motion partition line passes through the sub-blocks.

公开(公告)号：US20170201770A1

公开(公告)日：2017-07-13

申请号：US15470556

申请日：2017-03-27

申请人： QUALCOMM Incorporated

发明人： Peisong Chen ,  Xianglin Wang ,  Marta Karczewicz

IPC分类号： H04N19/615 ,  H04N19/122 ,  H04N19/66 ,  H04N19/137 ,  H04N19/176 ,  H04N19/174 ,  H04N19/513

CPC分类号： H04N19/615 ,  H04N19/119 ,  H04N19/122 ,  H04N19/137 ,  H04N19/17 ,  H04N19/174 ,  H04N19/176 ,  H04N19/513 ,  H04N19/52 ,  H04N19/537 ,  H04N19/543 ,  H04N19/66

摘要： In one example, an apparatus includes a video encoder configured to partition a block of video data into a first geometric partition and a second geometric partition using a geometric motion partition line, wherein the block comprises N×N pixels, divide the block of video data into four equally-sized, non-overlapping (N/2)×(N/2) sub-blocks, and encode at least one of the sub-blocks through which the geometric motion partition line passes using a transform size smaller than (N/2)×(N/2). The video encoder may determine transform sizes for the sub-blocks based on whether the geometric motion partition line passes through the sub-blocks. In one example, a video decoder may inverse transform the sub-blocks, and may determine transform sizes for the sub-blocks based on whether the geometric motion partition line passes through the sub-blocks.

公开(公告)号：US20240129531A1

公开(公告)日：2024-04-18

申请号：US18496152

申请日：2023-10-27

申请人： QUALCOMM Incorporated

发明人： Peisong Chen ,  Yunfei Zheng ,  Rajan Laxman Joshi ,  Muhammed Zeyd Coban ,  Marta Karczewicz

IPC分类号： H04N19/60 ,  H04N19/122 ,  H04N19/129 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

CPC分类号： H04N19/60 ,  H04N19/122 ,  H04N19/129 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

摘要： A video encoder may transform residual data by using a transform selected from a group of transforms. The transform is applied to the residual data to create a two-dimensional array of transform coefficients. A scanning mode is selected to scan the transform coefficients in the two-dimensional array into a one-dimensional array of transform coefficients. The combination of transform and scanning mode may be selected from a subset of combinations that is based on an intra-prediction mode. The scanning mode may also be selected based on the transform used to create the two-dimensional array. The transforms and/or scanning modes used may be signaled to a video decoder.

公开(公告)号：US20230379504A1

公开(公告)日：2023-11-23

申请号：US18363629

申请日：2023-08-01

申请人： QUALCOMM Incorporated

发明人： Peisong Chen ,  Yan Ye ,  Marta Karczewicz

IPC分类号： H04N19/70 ,  H04N19/176 ,  H04N19/147 ,  H04N19/46 ,  H04N19/61 ,  H04N19/593 ,  H04N19/103 ,  H04N19/96 ,  H04N19/44

CPC分类号： H04N19/70 ,  H04N19/176 ,  H04N19/147 ,  H04N19/46 ,  H04N19/61 ,  H04N19/593 ,  H04N19/103 ,  H04N19/96 ,  H04N19/44

摘要： Techniques are described for encoding and decoding digital video data using macroblocks that are larger than the macroblocks prescribed by conventional video encoding and decoding standards. For example, the techniques include encoding and decoding a video stream using macroblocks comprising greater than 16×16 pixels. In one example, an apparatus includes a video encoder configured to encode a coded unit comprising a plurality of video blocks, wherein at least one of the plurality of video blocks comprises a size of more than 16×16 pixels and to generate syntax information for the coded unit that includes a maximum size value, wherein the maximum size value indicates a size of a largest one of the plurality of video blocks in the coded unit. The syntax information may also include a minimum size value. In this manner, the encoder may indicate to a decoder the proper syntax decoder to apply to the coded unit.

公开(公告)号：US20180103273A1

公开(公告)日：2018-04-12

申请号：US15794507

申请日：2017-10-26

申请人： QUALCOMM Incorporated

发明人： Liwei Guo ,  Peisong Chen ,  Marta Karczewicz

IPC分类号： H04N19/86 ,  H04N19/80 ,  H04N19/17 ,  H04N19/127 ,  H04N19/117 ,  H04N19/176 ,  H04N19/159

CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/127 ,  H04N19/159 ,  H04N19/17 ,  H04N19/176 ,  H04N19/80

摘要： During a video encoding or decoding process, a predicted prediction block is generated for a CU. The CU may have two or more prediction units (PUs). A computing device selects a neighbor region size. After the computing device selects the neighbor region size, samples in a transition zone of the prediction block are identified. Samples associated with a first PU are in the transition zone if neighbor regions that contain the samples also contain samples associated with a second PU. Samples associated with the second PU may be in the transition zone if neighbor regions that contain the samples also contain samples associated with the first PU. The neighbor regions have the selected neighbor region size. A smoothing operation is then performed on the samples in the transition zone.

公开(公告)号：US20170272765A1

公开(公告)日：2017-09-21

申请号：US15612912

申请日：2017-06-02

申请人： QUALCOMM Incorporated

发明人： Xianglin Wang ,  Wei-Jung Chien ,  Marta Karczewicz ,  Ying Chen ,  Peisong Chen

IPC分类号： H04N19/182 ,  H04N19/61 ,  H04N19/593 ,  H04N19/105

CPC分类号： H04N19/182 ,  H04N19/105 ,  H04N19/593 ,  H04N19/61

摘要： A video coder performs a padding operation that processes a set of border pixels according to an order. The order starts at a bottom-left border pixel and proceeds through the border pixels sequentially to a top-right border pixel. When the padding operation processes an unavailable border pixel, the padding operation predicts a value of the unavailable border pixel based on a value of a border pixel previously processed by the padding operation. The video coder may generate an intra-predicted video block based on the border pixels.

公开(公告)号：US09609357B2

公开(公告)日：2017-03-28

申请号：US14880500

申请日：2015-10-12

申请人： QUALCOMM Incorporated

发明人： Marta Karczewicz ,  Peisong Chen ,  Yan Ye

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/577 ,  H04N19/105 ,  H04N19/147 ,  H04N19/46 ,  H04N19/61 ,  H04N19/573 ,  H04N19/124 ,  H04N19/176 ,  H04N19/44 ,  H04N19/91

CPC分类号： H04N19/577 ,  H04N19/105 ,  H04N19/124 ,  H04N19/147 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/573 ,  H04N19/61 ,  H04N19/91

摘要： In one aspect of this disclosure, rounding adjustments to bi-directional predictive data may be purposely eliminated to provide predictive data that lacks any rounding bias. In this case, rounded and unrounded predictive data may both be considered in a rate-distortion analysis to identify the best data for prediction of a given video block. In another aspect of this disclosure, techniques are described for selecting among default weighted prediction, implicit weighted prediction, and explicit weighted prediction. In this context, techniques are also described for adding offset to prediction data, e.g., using the format of explicit weighted prediction to allow for offsets to predictive data that is otherwise determined by implicit or default weighted prediction.

公开(公告)号：US11758194B2

公开(公告)日：2023-09-12

申请号：US17320514

申请日：2021-05-14

申请人： QUALCOMM Incorporated

发明人： Peisong Chen ,  Marta Karczewicz ,  Yan Ye

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/70 ,  H04N19/176 ,  H04N19/147 ,  H04N19/46 ,  H04N19/61 ,  H04N19/593 ,  H04N19/103 ,  H04N19/96 ,  H04N19/44

CPC分类号： H04N19/70 ,  H04N19/103 ,  H04N19/147 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/593 ,  H04N19/61 ,  H04N19/96

摘要： Technology is described for decoding a video block. A block-type syntax information is received which indicates a size of a video block in a video frame, wherein a maximum size of the video blocks is 32×32 or 64×64. The video block having the size indicated by the block-type syntax information is received. The video block is partitioned into partitions, and at least one of the partitions is encoded with a first encoding mode and at least one other of the partitions is encoded with a second encoding mode which is different from the first encoding mode. Syntax information is received for the partitions of the video block and for the first encoding mode and the second encoding mode. Motion vector information is received for one or more of the partitions. The video block is decoded based on at least the block-type syntax information and the motion vector information.

公开(公告)号：US09584823B2

公开(公告)日：2017-02-28

申请号：US13853580

申请日：2013-03-29

申请人： QUALCOMM Incorporated

发明人： Ying Chen ,  Peisong Chen ,  Marta Karczewicz

IPC分类号： H04N7/36 ,  H04N19/513 ,  H04N19/597 ,  H04N19/105 ,  H04N19/52 ,  H04N19/176 ,  H04N19/147 ,  H04N19/46

CPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/52 ,  H04N19/597

摘要： Aspects of this disclosure relate to, in an example, a method that includes identifying a first block of video data in a first temporal location from a first view, wherein the first block is associated with a first disparity motion vector. The method also includes determining a motion vector predictor for a second motion vector associated with a second block of video data, wherein the motion vector predictor is based on the first disparity motion vector. When the second motion vector comprises a disparity motion vector, the method includes determining the motion vector predictor comprises scaling the first disparity motion vector to generate a scaled motion vector predictor, wherein scaling the first disparity motion vector comprises applying a scaling factor comprising a view distance of the second disparity motion vector divided by a view distance of the first motion vector to the first disparity motion vector.

摘要翻译： 本公开的方面在一个示例中涉及一种包括从第一视图识别第一时间位置中的第一视频数据块的方法，其中第一块与第一视差运动矢量相关联。 该方法还包括确定与第二视频数据块相关联的第二运动矢量的运动矢量预测器，其中运动矢量预测器基于第一视差运动矢量。 当第二运动矢量包括视差运动矢量时，该方法包括确定运动矢量预测器包括缩放第一视差运动矢量以产生缩放的运动矢量预测器，其中缩放第一视差运动矢量包括应用包括视距 的第二视差运动矢量除以第一运动矢量与第一视差运动矢量的视距。

公开(公告)号：US20160037181A1

公开(公告)日：2016-02-04

申请号：US14880500

申请日：2015-10-12

申请人： QUALCOMM Incorporated

发明人： Marta Karczewicz ,  Peisong Chen ,  Yan Ye

IPC分类号： H04N19/577 ,  H04N19/176 ,  H04N19/44 ,  H04N19/124 ,  H04N19/105 ,  H04N19/91

CPC分类号： H04N19/577 ,  H04N19/105 ,  H04N19/124 ,  H04N19/147 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/573 ,  H04N19/61 ,  H04N19/91

摘要： In one aspect of this disclosure, rounding adjustments to bi-directional predictive data may be purposely eliminated to provide predictive data that lacks any rounding bias. In this case, rounded and unrounded predictive data may both be considered in a rate-distortion analysis to identify the best data for prediction of a given video block. In another aspect of this disclosure, techniques are described for selecting among default weighted prediction, implicit weighted prediction, and explicit weighted prediction. In this context, techniques are also described for adding offset to prediction data, e.g., using the format of explicit weighted prediction to allow for offsets to predictive data that is otherwise determined by implicit or default weighted prediction.

摘要翻译： 在本公开的一个方面，可以有意地消除对双向预测数据的舍入调整，以提供缺少任何舍入偏差的预测数据。 在这种情况下，可以在速率失真分析中考虑四舍五入和未包围的预测数据，以识别用于预测给定视频块的最佳数据。 在本公开的另一方面，描述了用于在默认加权预测，隐式加权预测和显式加权预测之间进行选择的技术。 在这种情况下，还描述了用于将偏移量添加到预测数据的技术，例如使用显式加权预测的格式来允许否则由隐含或默认加权预测确定的预测数据的偏移。