公开(公告)号：IN1902MUN2014A

公开(公告)日：2015-07-10

申请号：IN1902MUN2014

申请日：2014-09-24

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  WANG XIANGLIN ,  KARCZEWICZ MARTA

Abstract: In one example an apparatus for coding video data comprises a video coder configured to for a parallel motion estimation (PME) region comprising a plurality of blocks of video data within the PME region identify a common set of spatial candidate blocks outside of and adjacent to the PME region each of the common set of spatial candidate blocks at a respective predefined location relative to the PME region and for each of the blocks within the PME region for which motion information prediction is performed generate a respective motion information candidate list wherein for at least some of the blocks within the PME region for which motion information prediction is performed generating the motion information candidate list comprises evaluating motion information of at least one of the common set of spatial candidate blocks for inclusion in the motion information candidate list for the block.

公开(公告)号：CA2910969A1

公开(公告)日：2014-12-18

申请号：CA2910969

申请日：2014-06-09

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  WANG YE-KUI

IPC: H04N19/70

Abstract: An apparatus for coding video information may include computing hardware configured to: when a current picture is to be predicted using at least inter layer motion prediction (ILMP): process a collocated reference index value associated with the current picture, wherein the collocated reference index value indicates a first reference picture that is used in predicting the current picture using inter layer prediction (ILP); and determine whether the first reference picture indicated by the collocated reference index value is enabled for ILMP; when the current picture is to be predicted using at least inter layer sample prediction (ILSP): process a reference index value associated with a block in the current picture, wherein the reference index value indicates a second reference picture that is used in predicting the block in the current picture using ILP; and determine whether the second reference picture indicated by the reference index value is enabled for ILSP.

公开(公告)号：CA2910964A1

公开(公告)日：2014-12-18

申请号：CA2910964

申请日：2014-06-09

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  WANG YE-KUI

IPC: H04N19/30 ,  H04N19/82

Abstract: An apparatus for coding video information according to certain aspects includes computing hardware. The computing hardware is configured to: identify a current picture to be predicted using at least one type of inter layer prediction (ILP), the type of ILP comprising one or more of inter layer motion prediction (ILMP) or inter layer sample prediction (ILSP); and control: (1) a number of pictures that may be resampled and used to predict the current picture using ILMP and (2) a number of pictures that may be resampled and used to predict the current picture using ILSP, wherein the computing hardware is configured to control the number of pictures that may be resampled and used to predict the current picture using ILMP independent of the number of pictures that may be resampled and used to predict the current picture using ILSP.

公开(公告)号：AU2013207804A1

公开(公告)日：2014-07-31

申请号：AU2013207804

申请日：2013-01-11

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  SOLE ROJALS JOEL ,  KARCZEWICZ MARTA

IPC: H04N19/00

Abstract: In one example, a device for coding video data includes a video coder configured to determine a context for coding a transform coefficient of a video block based on a region of the video block in which the transform coefficient occurs, and entropy code the transform coefficient using the determined context. The region may comprise one of a first region comprising one or more upper-left 4x4 sub-blocks of transform coefficients of the video block and a second region comprising transform coefficients of the video block outside the first region.

公开(公告)号：AU2012309042A1

公开(公告)日：2014-03-27

申请号：AU2012309042

申请日：2012-08-15

Applicant: QUALCOMM INC

Inventor： WANG XIANGLIN ,  ZHENG YUNFEI ,  SEREGIN VADIM ,  KARCZEWICZ MARTA

IPC: H04N19/00 ,  H04N19/593

Abstract: For each prediction unit (PU) belonging to a coding unit (CU), a video coder generates a candidate list. The video coder generates the candidate list such that each candidate in the candidate list that is generated based on motion information of at least one other PU is generated without using motion information of any of the PUs belonging to the CU. After generating the candidate list for a PU, the video coder generates a predictive video block for the PU based on one or more reference blocks indicated by motion information of the PU. The motion information of the PU is determinable based on motion information indicated by a selected candidate in the candidate list for the PU.

公开(公告)号：CA2862311A1

公开(公告)日：2013-08-15

申请号：CA2862311

申请日：2013-02-07

Applicant: QUALCOMM INC

Inventor： WANG XIANGLIN ,  SEREGIN VADIM ,  KARCZEWICZ MARTA

IPC: H04N19/159 ,  H04N19/174

Abstract: A computing device determines whether a prediction unit (PU) in a B slice is restricted to uni-directional inter prediction. In addition, the computing device generates a merge candidate list for the PU and determines a selected merge candidate in the merge candidate list. If the PU is restricted to uni-directional inter prediction, the computing device generates a predictive video block for the PU based on no more than one reference block associated with motion information specified by the selected merge candidate. If the PU is not restricted to uni-directional inter prediction, the computing device generates the predictive video block for the PU based on one or more reference blocks associated with the motion information specified by the selected merge candidate.

公开(公告)号：CA2853660A1

公开(公告)日：2013-05-10

申请号：CA2853660

申请日：2012-11-02

Applicant: QUALCOMM INC

Inventor： SEREGIN VADIM ,  CHIEN WEI-JUNG ,  KARCZEWICZ MARTA

IPC: H04W48/16

Abstract: This disclosure relates to methods and apparatus for encoding and decoding video data. In an example an intra-mode for predicting a current block of video data and most probable intra-modes (MPMs) for predicting the current block of video data may be determined. An index for each of the MPMs based on an order in which the intra- mode for predicting the current block is compared to the MPMs may be determined. When one of the MPMs for predicting the current block matches the intra-mode for predicting the current block, the index of the matching MPM is signaled.

公开(公告)号：AU2023385153A1

公开(公告)日：2025-04-17

申请号：AU2023385153

申请日：2023-11-15

Applicant: QUALCOMM INC

Inventor： ZHANG YAN ,  HUANG HAN ,  SEREGIN VADIM ,  KARCZEWICZ MARTA

IPC: H04N19/109 ,  H04N19/105 ,  H04N19/176 ,  H04N19/52 ,  H04N19/577

Abstract: A video coder is configured to receive a first block of video data to be coded using adaptive affine decoder side motion vector refinement (DMVR). The video coder may determine to set a first motion vector difference (MVD) for a first reference picture list to zero, and then refine control point motion vectors (CPMVs) associated with a second reference picture list to generate refined CPMVs. The video coder may then code the first block of video data using the refined CPMVs.

公开(公告)号：PL3821604T3

公开(公告)日：2025-04-14

申请号：PL19746243

申请日：2019-07-10

Applicant: QUALCOMM INC

Inventor： PHAM VAN LUONG ,  CHIEN WEI-JUNG ,  SEREGIN VADIM ,  KARCZEWICZ MARTA ,  HUANG HAN

IPC: H04N19/436 ,  H04N19/52

公开(公告)号：AU2023360499A1

公开(公告)日：2025-03-20

申请号：AU2023360499

申请日：2023-09-21

Applicant: QUALCOMM INC

Inventor： HUANG HAN ,  SEREGIN VADIM ,  KARCZEWICZ MARTA

IPC: H04N19/109 ,  H04N19/147 ,  H04N19/176 ,  H04N19/513 ,  H04N19/567

Abstract: A video coder may be configured to partition a coding block into subblocks, and generate initial subblock motion vectors for a plurality of the subblocks. The video coder may further refine the initial subblock motion vectors for the plurality of the subblocks using decoder side motion vector refinement to produce refined subblock motion vectors for the plurality of the subblocks, and perform a linear regression on the refined subblock motion vectors and coordinates of the plurality of the subblocks to derive an affine motion model. The video coder may then code the coding block using the derived affine motion model.