公开(公告)号：US20200213589A1

公开(公告)日：2020-07-02

申请号：US16733033

申请日：2020-01-02

Applicant: QUALCOMM Incorporated

Inventor： Nikolay Mikhaylovich SHLYAKHOV ,  Dmytro RUSANOVSKYY ,  Nan HU ,  Hilmi Enes EGILMEZ ,  Vadim SEREGIN ,  Marta KARCZEWICZ

IPC: H04N19/117 ,  H04N19/82 ,  H04N19/177 ,  H04N19/577

Abstract: This disclosure describes techniques for managing filter information for use with adaptive loop filter or any other in-loop filter in video encoder or decoder. In particular, a temporal buffer is managed to store filter coefficients for pictures of a group of pictures based on whether a picture is the starting point the group of pictures.

公开(公告)号：US20200077116A1

公开(公告)日：2020-03-05

申请号：US16677417

申请日：2019-11-07

Applicant: QUALCOMM Incorporated

Inventor： Sungwon Lee ,  Wei-Jung Chien ,  Li Zhang ,  Marta KARCZEWICZ

IPC: H04N19/56 ,  H04N19/52 ,  H04N19/51 ,  H04N19/122

Abstract: A method of decoding and encoding video data includes constructing a motion vector candidate list for the current block of video data based on the motion information from the neighboring blocks relative to the current block determined to include motion information, and adaptively ordering the constructed motion vector candidate list for the current block of video data based on at least one weight among a plurality of weights associated with motion information included in each neighboring block determined to include motion information.

公开(公告)号：US20190387247A1

公开(公告)日：2019-12-19

申请号：US16443113

申请日：2019-06-17

Applicant: QUALCOMM Incorporated

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

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/61 ,  H04N19/107

Abstract: A method of decoding video data comprising parsing a sub-prediction unit motion flag from received encoded video data, deriving a list of sub-prediction unit level motion prediction candidates if the sub-prediction unit motion flag is active, deriving a list of prediction unit level motion prediction candidates if the sub-prediction unit motion flag is not active, and decoding the encoded video data using a selected motion vector predictor.

公开(公告)号：US20190007705A1

公开(公告)日：2019-01-03

申请号：US16020511

申请日：2018-06-27

Applicant: QUALCOMM Incorporated

Inventor： Xin ZHAO ,  Vadim SEREGIN ,  Amir SAID ,  Marta KARCZEWICZ

IPC: H04N19/61 ,  H04N19/176 ,  H04N19/50 ,  H04N19/18

Abstract: Techniques are described in which a decoder is configured to receive an input data block and apply an inverse non-separable transform to at least part of the input data block to generate an inverse non-separable transform output coefficient block. The applying the inverse non-separable transform comprises assigning a window, assigning a weight for each position inside the assigned window, and determining the inverse non-separable transform output coefficient block based on the assigned weights. The decoder is further configured to forming a decoded video block based on the determined inverse non-separable transform output coefficient block, wherein forming the decoded video block comprises summing the residual video block with one or more predictive blocks.

公开(公告)号：US20190007688A1

公开(公告)日：2019-01-03

申请号：US16020179

申请日：2018-06-27

Applicant: QUALCOMM Incorporated

Inventor： Kai ZHANG ,  Jianle CHEN ,  Xin ZHAO ,  Marta KARCZEWICZ

IPC: H04N19/159 ,  H04N19/11 ,  H04N19/109 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

Abstract: An apparatus configured to encode or decode video data that includes a memory configured to store at least one reconstructed sample of video data and at least one processor, in communication with the memory, that is configured to identify at least one reconstructed sample, determine at least one extended angular intra prediction mode to use for intra prediction of at least one sample of a current block, intra predict, using the at least one extended angular intra prediction mode, at least one sample of the current block based on the at least one reconstructed sample, extended angular intra prediction modes including angular intra prediction modes other than angular prediction modes between horizontal −45 degrees and vertical −45 degrees, and encode or decode the current block based on the at least one predicted sample.

公开(公告)号：US20190005683A1

公开(公告)日：2019-01-03

申请号：US16020374

申请日：2018-06-27

Applicant: Qualcomm Incorporated

Inventor： Geert VAN DER AUWERA ,  Muhammed COBAN ,  Marta KARCZEWICZ

IPC: G06T9/40 ,  H04L1/00 ,  H04N19/119 ,  G06T3/00

Abstract: Provided are systems and methods for processing 360-degree video data by obtaining a 360-degree rectangular formatted projected picture, where the 360-degree rectangular formatted projected picture includes at least a first region, the at least first region includes at least one region boundary, and the at least first region includes a first region area; determining at least one guard band area located within the first region area, where the at least one guard band area is located alongside the at least one region boundary, and the first region area further includes a projected region area located outside the at least one guard band area; and coding a current coding block in the at least one guard band area using at least one additional guard band sample.

公开(公告)号：US20180041778A1

公开(公告)日：2018-02-08

申请号：US15665478

申请日：2017-08-01

Applicant: QUALCOMM Incorporated

Inventor： Li ZHANG ,  Wei-Jung CHIEN ,  Xin ZHAO ,  Yi-Wen CHEN ,  Marta KARCZEWICZ

IPC: H04N19/82 ,  H04N19/18 ,  H04N19/17 ,  H04N19/122 ,  H04N19/117 ,  H04N19/147

Abstract: The present disclosure provides various techniques related to adaptive loop filtering (ALF), and particular to geometry transformation-based ALF (GALF). In an aspect, a method for decoding video data includes receiving an encoded bitstream having coded video data from which reconstructed video units are generated, identifying multiple filter supports for the reconstructed video units, and filtering the reconstructed video units using the respective multiple filter supports to produce a decoded video output. Another method includes enabling block-level control of ALF of chroma components for the reconstructed video units, performing, for the reconstructed video units, the block-level ALF for the chroma components when ALF is enabled for one video block and skip performing the block-level ALF for the chroma components when ALF is disabled for another video block, and generating, based on the enabled block-level control of ALF, a decoded video output. Related devices, means, and computer-readable medium are also described.

公开(公告)号：US20170105014A1

公开(公告)日：2017-04-13

申请号：US15287494

申请日：2016-10-06

Applicant: QUALCOMM Incorporated

Inventor： Sungwon LEE ,  Adarsh Krishnan RAMASUBRAMONIAN ,  Dmytro RUSANOVSKYY ,  Joel SOLE ROJALS ,  Done BUGDAYCI SANSLI ,  Marta KARCZEWICZ

IPC: H04N19/30

CPC classification number: H04N19/30 ,  H04N19/182 ,  H04N19/184 ,  H04N19/186 ,  H04N19/85

Abstract: The present disclosure provides various aspects related to luma-driven chroma scaling for high dynamic range and wide color gamut contents. For example, a method of video data decoding may include obtaining video data, where the video data includes a scaled chroma component and a luma component, and where the scaled chroma component is scaled based on a chroma scaling factor that is a non-linear function of the luma component. The method may also include obtaining the chroma scaling factor for the scaled chroma component and generating a chroma component from the scaled chroma component based on the chroma scaling factor. In addition, the method may include outputting the chroma component, which may then be used for further processing.

公开(公告)号：US20150023419A1

公开(公告)日：2015-01-22

申请号：US14334417

申请日：2014-07-17

Applicant: QUALCOMM INCORPORATED

Inventor： Jianle CHEN ,  Vadim SEREGIN ,  Xiang LI ,  Krishnakanth RAPAKA ,  Marta KARCZEWICZ

IPC: H04N19/30 ,  H04N19/174 ,  H04N19/577

CPC classification number: H04N19/105 ,  H04N19/157 ,  H04N19/174 ,  H04N19/30 ,  H04N19/33 ,  H04N19/577 ,  H04N19/70

Abstract: An apparatus configured to code video information includes a memory and a processor in communication with the memory. The memory is configured to store video information associated with a reference layer and an enhancement layer, the reference layer comprising a reference layer (RL) picture having a first slice and a second slice, and the enhancement layer comprising an enhancement layer (EL) picture corresponding to the RL picture. The processor is configured to generate an inter-layer reference picture (ILRP) by upsampling the RL picture, the ILRP having a single slice associated therewith, set slice information of the single slice of the ILRP equal to slice information of the first slice, and use the ILRP to code at least a portion of the EL picture. 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通信的存储器和处理器。 所述存储器被配置为存储与参考层和增强层相关联的视频信息，所述参考层包括具有第一切片和第二切片的参考层（RL）图像，所述增强层包括增强层（EL）图像 对应于RL图片。 处理器被配置为通过对RL图像进行上采样来产生层间参考图片（ILRP），ILRP具有与其相关联的单个切片，将ILRP的单个切片的切片信息设置为等于第一切片的切片信息，以及 使用ILRP来编码EL图片的至少一部分。 处理器可以对视频信息进行编码或解码。

公开(公告)号：US20140362909A1

公开(公告)日：2014-12-11

申请号：US14294913

申请日：2014-06-03

Applicant: QUALCOMM Incorporated

Inventor： Jianle CHEN ,  Xiang LI ,  Wei PU ,  Marta KARCZEWICZ

IPC: H04N19/31 ,  H04N19/64 ,  H04N19/615

CPC classification number: H04N19/31 ,  H04N19/33 ,  H04N19/42 ,  H04N19/615 ,  H04N19/64 ,  H04N19/82

Abstract: An apparatus for coding video information according to certain aspects includes a memory and a processor. The memory unit is configured to store video information. The processor is configured to: obtain reference layer video information; upsample the reference layer video information in a first dimension to generate an intermediate output; constrain the intermediate output to a predetermined bit depth; and upsample the constrained intermediate output in a second dimension, wherein the second dimension is orthogonal to the first dimension.

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和处理器。 存储单元被配置为存储视频信息。 处理器被配置为：获得参考层视频信息; 在第一维度中对参考层视频信息进行上采样以产生中间输出; 将中间输出约束到预定位深度; 并且在第二维度中对约束的中间输出进行上采样，其中第二维度与第一维度正交。