公开(公告)号：IN3837CHN2014A

公开(公告)日：2015-07-03

申请号：IN3837CHN2014

申请日：2014-05-21

Applicant: QUALCOMM INC

Inventor： WANG YE KUI ,  RAMASUBRAMONIAN ADARSH KRISHNAN ,  CHEN YING

Abstract: In general techniques are described for coding picture order count values identying long term reference pictures. A video decoding device comprising a processor may perform the techniques. The processor may determine least significant bits (LSBs) of a picture order count (POC) value that identifies a long term reference picture (LTRP). The LSBs do not uniquely identify the POC value with respect to the LSBs of any other POC value identifying any other picture in a decoded picture buffer (DPB). The processor may determine most significant bits (MSBs) of the POC value. The MSBs combined with the LSBs is sufficient to distinguish the POC value from any other POC value that identifies any other picture in the DPB. The processor may retrieve the LTRP from the decoded picture buffer based on the LSBs and MSBs of the POC value and decode a current picture of the video data using the retrieved LTRP.

公开(公告)号：IN3181CHN2014A

公开(公告)日：2015-07-03

申请号：IN3181CHN2014

申请日：2014-04-28

Applicant: QUALCOMM INC

Inventor： CHEN YING ,  WANG YE KUI ,  CHEN JIANLE

Abstract: As one example techniques for decoding video data include receiving a bitstream that includes one or more pictures of a coded video sequence (CVS) decoding a first picture according to a decoding order wherein the first picture is a random access point (RAP) picture that is not an instantaneous decoding refresh (IDR) picture and decoding at least one other picture following the first picture according to the decoding order based on the decoded first picture. As another example techniques for encoding video data include generating a bitstream that includes one or more pictures of a CVS wherein a first picture according to the decoding order is a RAP picture that is not an IDR picture and avoiding including at least one other picture other than the first picture that corresponds to a leading picture associated with the first picture in the bitstream.

公开(公告)号：IN1822CHN2014A

公开(公告)日：2015-05-29

申请号：IN1822CHN2014

申请日：2014-03-08

Applicant: QUALCOMM INC

Inventor： WANG YE KUI ,  CHEN YING

Abstract: Techniques are described related to deriving a reference picture set. A reference picture set may identify reference pictures that can potentially be used to inter predict a current picture and picture following the current picture in decoding order. In some examples deriving the reference picture set may include constructing a plurality of reference picture subsets that together form the reference picture set.

公开(公告)号：PH12015500614B1

公开(公告)日：2015-05-11

申请号：PH12015500614

申请日：2015-03-19

Applicant: QUALCOMM INC

Inventor： WANG YE KUI

IPC: H04N19/196 ,  H04N19/30 ,  H04N19/31 ,  H04N19/597 ,  H04N19/70

Abstract: Techniques described herein are related to coding layer identifiers for operation points in video coding. In one example, a method of decoding video data is provided. The method comprises decoding syntax elements in a video parameter set (VPS) within a conforming bitstream indicating a first operation point having a first set of content. The method further comprises decoding, if present, syntax elements in the VPS within the conforming bitstream indicating hypothetical reference decoder (HRD) parameter information having a second set of content for the first operation point, wherein the conforming bitstream does not include syntax elements in the VPS that duplicate at least one of the first or second set of content for a second operation point, and wherein decoding syntax elements comprises decoding the syntax elements indicating the first operation point and the HRD parameter information only within conforming bitstreams.

公开(公告)号：HK1231659A1

公开(公告)日：2017-12-22

申请号：HK17105290

申请日：2017-05-25

Applicant: QUALCOMM INC

Inventor： PANG CHAO ,  RAPAKA KRISHNAKANTH ,  WANG YE KUI ,  SOLE ROJALS JOEL ,  KARCZEWICZ MARTA

IPC: H04N20060101

公开(公告)号：IN3591CHN2014A

公开(公告)日：2015-07-03

申请号：IN3591CHN2014

申请日：2014-05-13

Applicant: QUALCOMM INC

Inventor： CHEN YING ,  WANG YE KUI

Abstract: In general techniques are described for separately coding depth and texture components of video data. A video coding device configured to code video data may perform the techniques. The video coding device may comprise a decoded picture buffer and a processor configured to store a depth component in the decoded picture buffer analyze a view dependency to determine whether the depth component is used for inter view prediction and remove the depth component from the decoded picture buffer in response to determining that the depth component is not used for inter view prediction. for processing video data including a view component comprised of a depth component and a texture component.

公开(公告)号：IN3134CHN2014A

公开(公告)日：2015-07-03

申请号：IN3134CHN2014

申请日：2014-04-25

Applicant: QUALCOMM INC

Inventor： COBAN MUHAMMED ZEYD ,  WANG YE KUI ,  KARCZEWICZ MARTA

Abstract: A video coder can control in picture prediction across slice boundaries within a picture. In one example a first syntax element can control if in picture prediction across slice boundaries for slices of a picture. If in picture prediction across slice boundaries is enabled for the picture then a second syntax element can control for an individual slices if in picture prediction across slice boundaries is enabled for the slice.

公开(公告)号：IN2701CHN2014A

公开(公告)日：2015-07-03

申请号：IN2701CHN2014

申请日：2014-04-09

Applicant: QUALCOMM INC

Inventor： WANG YE KUI ,  CHEN YING ,  COBAN MUHAMMED ZEYD ,  KARCZEWICZ MARTA

Abstract: Techniques described herein for coding video data include techniques for coding pictures partitioned into tiles in which each of the plurality of tiles in a picture is assigned to one of a plurality of tile groups. One example method for coding video data comprising a picture that is partitioned into a plurality tiles comprises coding video data in a bitstream and coding in the bitstream information that indicates one of a plurality of tile groups to which each of the plurality of tiles is assigned. The techniques for grouping tiles described herein may facilitate improved parallel processing for both encoding and decoding of video bitstreams improved error resilience and more flexible region of interest (ROI) coding.

公开(公告)号：PH12015500536B1

公开(公告)日：2015-05-04

申请号：PH12015500536

申请日：2015-03-12

Applicant: QUALCOMM INC

Inventor： RAMASUBRAMONIAN ADARSH KRISHNAN ,  WANG YE KUI

Abstract: A video encoder signals, in a slice header for a current slice of a current picture, a first long-term reference picture (LTRP) entry, the first LTRP entry indicating that a particular reference picture is in a long-term reference picture set of the current picture. Furthermore, the video encoder signals, in the slice header, a second LTRP entry only if second LTRP entry does not indicate that the particular reference picture is in the long-term reference picture set of the current picture.

公开(公告)号：PH12014502841B1

公开(公告)日：2015-02-09

申请号：PH12014502841

申请日：2014-12-19

Applicant: QUALCOMM INC

Inventor： WANG YE KUI ,  CHEN YING

IPC: H04N21/234 ,  H04N21/6336 ,  H04N21/647

Abstract: Systems, methods, and devices for processing video data are disclosed. Some examples systems, methods, and devices receive an external indication at a video decoder. The example systems, methods, and devices treat a clean random access (CRA) picture as a broken link access (BLA) picture based on the external indication.