公开(公告)号：US20140044180A1

公开(公告)日：2014-02-13

申请号：US13963982

申请日：2013-08-09

Applicant: QUALCOMM Incorporated

Inventor： Jianle CHEN ,  Vadim SEREGIN

IPC: H04N7/36

CPC classification number: H04N19/51 ,  H04N19/30 ,  H04N19/52

Abstract: An apparatus for coding video information according to certain aspects includes a memory unit and a processor in communication with the memory unit. The memory unit stores enhancement layer and base layer video information and a completed merge candidate list. The processor is in communication with the memory and is configured to create the completed merge candidate list associated with the enhancement layer video information. The processor is further configured to add base layer motion vector information as a candidate into the completed candidate list after the completed merge candidate list has been created to create a final candidate list.

Abstract translation: 根据某些方面的用于编码视频信息的装置包括存储器单元和与存储器单元通信的处理器。 存储单元存储增强层和基本层视频信息以及完成的合并候选列表。 处理器与存储器通信，并被配置为创建与增强层视频信息相关联的完成的合并候选列表。 处理器还被配置为在已经创建完成的合并候选列表以创建最终候选列表之后，将基本层运动矢量信息作为候选者添加到完成的候选列表中。

公开(公告)号：US20130272410A1

公开(公告)日：2013-10-17

申请号：US13860460

申请日：2013-04-10

Applicant: QUALCOMM INCORPORATED

Inventor： Vadim SEREGIN ,  Jianle CHEN ,  Xianglin WANG ,  Marta KARCZEWICZ

IPC: H04N7/36

CPC classification number: H04N19/51 ,  H04N19/176 ,  H04N19/42 ,  H04N19/513 ,  H04N19/52 ,  H04N19/523

Abstract: A video decoder determines, based at least in part on a size of a prediction unit (PU), whether to round either or both a horizontal or a vertical component of a motion vector of the PU from sub-pixel accuracy to integer-pixel accuracy. The video decoder generates, based at least in part on the motion vector, a predictive sample block for the PU and generates, based in part on the predictive sample block for the PU, a reconstructed sample block.

Abstract translation: 视频解码器至少部分地基于预测单元（PU）的大小来确定是否将PU的运动矢量的水平或垂直分量从子像素精度舍入到整数像素精度 。 视频解码器至少部分地基于运动矢量生成PU的预测采样块，并且部分地基于PU的预测采样块产生重建的采样块。

公开(公告)号：US20250030888A1

公开(公告)日：2025-01-23

申请号：US18908535

申请日：2024-10-07

Applicant: QUALCOMM Incorporated

Inventor： Bappaditya RAY ,  Vadim SEREGIN ,  Marta KARCZEWICZ

IPC: H04N19/593 ,  H04N19/105 ,  H04N19/11 ,  H04N19/117 ,  H04N19/174 ,  H04N19/176 ,  H04N19/80

Abstract: Techniques are described herein for processing video data using enhanced interpolation filters for intra-prediction. For instance, a device can determine an intra-prediction mode for predicting a block of video data. The device can determine a type of smoothing filter to use for the block of video data, wherein the type of the smoothing filter is determined based at least in part on comparing at least one of a width of the block of video data and a height of the block of video data to a first threshold. The device can further perform intra-prediction for the block of video data using the determined type of smoothing filter and the intra-prediction mode.

公开(公告)号：US20210014478A1

公开(公告)日：2021-01-14

申请号：US16912660

申请日：2020-06-25

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Muhammed Zeyd COBAN

IPC: H04N19/105 ,  H04N19/117 ,  H04N19/137 ,  H04N19/46 ,  H04N19/132 ,  H04N19/51 ,  H04N19/159 ,  H04N19/176

Abstract: Techniques are described for video encoding and decoding using reference picture resampling with switchable filters. One example involves obtaining a current picture and a reference picture, identifying filter index information for a current block of the current picture, and determining that a first picture size value of the current picture and a second picture size value of the reference picture are different. Based on the determining that the first picture size value of the current picture and the second picture size value of the reference picture are different, performing a resampling process using a default filter index in place of a current filter index identified by the filter index information. Additional examples can use the current filter index identified by the filter index information in subsequent blocks. In various examples, the current filter index can be derived or signaled.

公开(公告)号：US20200221111A1

公开(公告)日：2020-07-09

申请号：US16725775

申请日：2019-12-23

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Wei-Jung CHIEN ,  Marta KARCZEWICZ

IPC: H04N19/46 ,  H04N19/159 ,  H04N19/105 ,  H04N19/132 ,  H04N19/186 ,  H04N19/176 ,  G06F9/38

Abstract: Systems, methods, and computer-readable storage media for restricting block sizes for illumination compensation are described. An example method can include obtaining a block of a picture of video data; determining a size of the block; determining whether the size of the block is equal to or less than a first block size associated with a block size restriction that restricts bi-directional inter-prediction for blocks having a respective size that is equal to or less than the first block size associated with the block size restriction or whether the size of the block is greater than a second block size associated with a video coding pipeline structure; and disabling illumination compensation for the block based on a determination that the size of the block is equal to or less than the first block size or greater than the second block size.

公开(公告)号：US20200213600A1

公开(公告)日：2020-07-02

申请号：US16715069

申请日：2019-12-16

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Wei-Jung CHIEN ,  Marta KARCZEWICZ

IPC: H04N19/186 ,  H04N19/513

Abstract: Systems and techniques for processing video data include a pruning processes for motion vector candidate list construction. An illumination compensation flag of a potential motion information candidate to be added to a motion information candidate list can include motion information associated with a block of video data, where the motion information can include a motion vector and an illumination compensation flag. The motion information can be compared with stored motion information in the motion information candidate list, where the stored motion information can include at least one stored motion vector and associated stored illumination compensation flag. When the motion vector matches the stored motion vector, the pruning process can include not adding the motion vector to the motion information candidate list, and updating the stored illumination compensation flag based on a value of the illumination compensation flag and a value of the stored illumination compensation flag.

公开(公告)号：US20200186830A1

公开(公告)日：2020-06-11

申请号：US16705027

申请日：2019-12-05

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Cheng-Teh HSIEH ,  Wei-Jung CHIEN ,  Marta KARCZEWICZ

IPC: H04N19/573 ,  H04N19/513 ,  H04N19/159 ,  H04N19/46 ,  H04N19/132 ,  H04N19/105 ,  H04N19/186 ,  H04N19/176

Abstract: Systems and techniques for performing illumination compensation in processing video data include deriving one or more illumination compensation parameters for a block of a picture based on one or more tools which may be used for inter-prediction of the block. Illumination compensation can be selectively applied for the block based on whether bi-directional prediction is to be applied for the inter-prediction of the block. In some cases if it is determined that bi-directional prediction is to be applied for inter-prediction of the block, illumination compensation may be avoided for the block.

公开(公告)号：US20190306538A1

公开(公告)日：2019-10-03

申请号：US16372249

申请日：2019-04-01

Applicant: QUALCOMM Incorporated

Inventor： Marta KARCZEWICZ ,  Vadim SEREGIN ,  Nan HU ,  Wei-Jung CHIEN

IPC: H04N19/96 ,  H04N19/44 ,  H04N19/70 ,  H04N19/176 ,  H04N19/91

Abstract: Embodiments include methods and apparatuses for decoding video data including receiving an encoded video bitstream that forms a representation of a coded picture of the video data and determining a partitioning of the coded picture of the video data into a plurality of coded unit. The partitioning may be according to a first tree structure and the plurality of coded units including a leaf node in the first tree structure. A method may further include determining that a residual block of the leaf node is recursively split into a plurality transform units according to a second tree structure.

公开(公告)号：US20150016500A1

公开(公告)日：2015-01-15

申请号：US14322786

申请日：2014-07-02

Applicant: QUALCOMM Incorporated

Inventor： Vadim SEREGIN ,  Ying CHEN ,  Ye-Kui WANG

IPC: H04N19/30 ,  H04N19/29 ,  H04N19/187

CPC classification number: H04N19/31 ,  H04N19/187 ,  H04N19/30 ,  H04N19/33 ,  H04N19/61 ,  H04N19/70

Abstract: 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 first layer and a second layer. The processor is configured to decode first layer pictures of the first layer, store the decoded first layer pictures in a decoded picture buffer, determine whether second layer pictures having no corresponding first layer pictures are to be coded, and in response to determining that second layer pictures having no corresponding first layer pictures are to be coded, process an indication that one or more decoded first layer pictures stored in the decoded picture buffer are to be removed. The processor may encode or decode the video information.

Abstract translation: 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第一层和第二层相关联的视频信息。 处理器被配置为对第一层的第一层图像进行解码，将解码的第一层图像存储在解码图像缓冲器中，确定是否要对不具有对应的第一层图像的第二层图像进行编码，并且响应于确定第二层 要对不具有对应的第一层图像的图像进行编码，处理存储在解码图像缓冲器中的一个或多个解码的第一层图像将被去除的指示。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140301457A1

公开(公告)日：2014-10-09

申请号：US14243310

申请日：2014-04-02

Applicant: QUALCOMM Incorporated

Inventor： Wei Pu ,  Jianle CHEN ,  Xiang LI ,  Marta KARCZEWICZ ,  Vadim SEREGIN

IPC: H04N19/503 ,  H04N19/80 ,  H04N19/31

CPC classification number: H04N19/80 ,  H04N19/30 ,  H04N19/46

Abstract: A method of coding video data can include receiving video information associated with a reference layer, an enhancement layer, or both, and generating a plurality of inter-layer reference pictures using a plurality of inter-layer filters and one or more reference layer pictures. The generated plurality of inter-layer reference pictures may be inserted into a reference picture list. A current picture in the enhancement layer may be coded using the reference picture list. The inter-layer filters may comprise default inter-layer filters or alternative inter-layer filters signaled in a sequence parameter set, video parameter set, or slice header.

Abstract translation: 编码视频数据的方法可以包括接收与参考层，增强层或两者相关联的视频信息，以及使用多个层间滤波器和一个或多个参考层图像来生成多个层间参考图像。 所生成的多个层间参考图片可以被插入到参考图片列表中。 可以使用参考图片列表对增强层中的当前图像进行编码。 层间过滤器可以包括在序列参数集，视频参数集或片头中发信号的默认层间过滤器或替代层间过滤器。