公开(公告)号：WO2012121802A1

公开(公告)日：2012-09-13

申请号：PCT/US2012/020890

申请日：2012-01-11

Applicant: VIDYO, INC. ,  BOYCE, Jill ,  CIPOLLI, Stephen ,  LENNOX, Jonathan ,  WENGER, Stephan ,  HONG, Danny

Inventor： BOYCE, Jill ,  CIPOLLI, Stephen ,  LENNOX, Jonathan ,  WENGER, Stephan ,  HONG, Danny

IPC: H04B1/66

CPC classification number: H04N19/46 ,  H04N19/70 ,  H04N19/85

Abstract: Disclosed are techniques for creating, coding, decoding, and using, rotation information related to one or more coded pictures in non-normative parts of a coded video bitstream.

Abstract translation: 公开了用于创建，编码，解码和使用与编码视频比特流的非规范部分中的一个或多个编码图像相关的旋转信息的技术。

公开(公告)号：WO2007015126A1

公开(公告)日：2007-02-08

申请号：PCT/IB2006/001501

申请日：2006-06-08

Applicant: NOKIA CORPORATION ,  UGUR, Kemal ,  TIAN, Dong ,  WENGER, Stephan

Inventor： UGUR, Kemal ,  TIAN, Dong ,  WENGER, Stephan

IPC: H04N7/26

CPC classification number: H04N19/89 ,  H04N19/107 ,  H04N19/147 ,  H04N19/156 ,  H04N19/176 ,  H04N19/19

Abstract: In general the present invention provides a video encoder, which is arranged for adaptive encoding mode selection. The video encoder is operable with a plurality of encoding modes for encoding a current macroblock of a video sequence. The video sequence is preferably intended for being transmitted by a communication network, e.g. any circuit-switched or packet-switched communication network. A distortion estimator is arranged for estimating expected distortion values due to potential erroneous transmission of the current macroblock in dependence of the encoding modes. A decision module is arranged for selecting a final encoding mode from the plurality of encoding modes on the basis of the distortion values and encoding parameters. Further, a table is provided, which is referenced by the spatial position of the macroblock and which is updated with an accumulated distortion value. The video encoder is arranged for applying the final encoding mode for encoding the current macroblock.

Abstract translation: 通常，本发明提供一种视频编码器，其被配置用于自适应编码模式选择。 视频编码器可操作用于编码视频序列的当前宏块的多种编码模式。 该视频序列优选地用于由通信网络发送，例如， 任何电路交换或分组交换通信网络。 布置失真估计器，用于根据编码模式估计由于当前宏块的潜在错误传输引起的预期失真值。 决定模块被配置为根据失真值和编码参数从多个编码模式中选择最终编码模式。 此外，提供了由宏块的空间位置参考并且以累积失真值更新的表。 视频编码器被布置为应用用于编码当前宏块的最终编码模式。

公开(公告)号：WO2006085137A2

公开(公告)日：2006-08-17

申请号：PCT/IB2005/003835

申请日：2005-12-20

Applicant: NOKIA CORPORATION ,  NOKIA INC. ,  WENGER, Stephan ,  HANNUKSELA, Miska

Inventor： WENGER, Stephan ,  HANNUKSELA, Miska

IPC: H04N5/265

CPC classification number: H04L29/06027 ,  H04L65/4038 ,  H04L65/605 ,  H04N7/152 ,  H04N19/174 ,  H04N19/40

Abstract: A method and system for compressed domain video mixing for spatially combining incoming video streams into an outgoing video stream. Using H.264 as an example, each incoming stream is divided into a plurality of slices, each having a plurality of header fields including a first_mb_in_slice header field. Based on the picture format in the outgoing stream, first_mb_in_slice for each incoming stream is modified such that the modified first_mb_in_slice header field is indicative of location in the spatial representation of the outgoing stream at which the slice of the incoming stream is placed. H.264's slice group mechanism is used to map the spatial positions of the second and following macroblocks of the slices to the appropriate locations. If the incoming streams are previously mixed by upstream mixers, a decomposer can be used to separate these mixed streams into component streams before combining them with other incoming streams.

Abstract translation: 一种用于压缩域视频混合的方法和系统，用于将输入视频流空间合并成输出视频流。 使用H.264作为示例，每个传入流被划分为多个片，每个片具有包括first_mb_in_slice标题字段的多个标题字段。 基于输出流中的图像格式，修改每个输入流的first_mb_in_slice，使得修改的first_mb_in_slice报头字段指示输入流的切片在其上放置的输出流的空间表示中的位置。 H.264的片组机制用于将切片的第二个和后续宏块的空间位置映射到适当的位置。 如果输入流预先由上游混频器混合，则可以使用分解器将这些混合流分组成分量流，然后将它们与其他输入流组合。

公开(公告)号：WO2020181227A1

公开(公告)日：2020-09-10

申请号：PCT/US2020/021483

申请日：2020-03-06

Applicant: LIU, Shan ,  WENGER, Stephan

Inventor： LIU, Shan ,  WENGER, Stephan

IPC: H04N19/593 ,  H04N19/176

Abstract: A method of decoding a coded image or a coded picture in a coded video sequence, into a picture representing a projection on a planar surface of a non-planar surface, is provided, and the method is performed by a decoder employing intra prediction. The method includes obtaining an intra prediction mode indicative of an intra prediction direction, for a block of the picture, determining at least one non-straight curve representative of a straight line on the non-planar surface, based on the projection and the obtained intra prediction mode, and creating, for the block, prediction samples along the determined at least one non-straight curve, from at least one boundary sample along the determined at least one non-straight curve.

公开(公告)号：WO2020086347A1

公开(公告)日：2020-04-30

申请号：PCT/US2019/056459

申请日：2019-10-16

Applicant: WENGER, Stephan ,  LIU, Shan

Inventor： WENGER, Stephan ,  LIU, Shan

IPC: H04L29/06 ,  H04L29/08 ,  H04N19/70 ,  H04N19/184 ,  H04N19/162 ,  H04N19/44 ,  H04N19/91 ,  H04N19/132

Abstract: A method and apparatus for media decoding by a decoder include decoding a first indication indicative of a first conformance point of a coded video sequence. A second indication indicative of a second conformance point of the coded video sequence is decoded. It is determined whether the coded video sequence is decodable by the decoder based on at least one of the first indication and the second indication. The coded video sequence is selectively decoded based on determining whether the decoded video sequence is decodable by the decoder.

公开(公告)号：WO2020050962A1

公开(公告)日：2020-03-12

申请号：PCT/US2019/046793

申请日：2019-08-16

Applicant: WENGER, Stephan ,  LIU, Shan

Inventor： WENGER, Stephan ,  LIU, Shan

IPC: H04N19/103 ,  H04N19/119 ,  H04N19/149 ,  H04N19/157

Abstract: A method of and an apparatus for decoding a coded picture of a coded video sequence including a first segment and a second segment, are provided. The method includes determining a first decoding process for decoding the first segment, in which a first prediction is disallowed, based on at least a first syntax element of a high level syntax structure applicable to the first segment and the second segment, the first syntax element indicating that the first prediction is disallowed, and determining a second decoding process for decoding the second segment, in which a second prediction different than the first prediction is disallowed, based on at least a second syntax element of the high level syntax structure, the second syntax element indicating that the second prediction is disallowed.

公开(公告)号：WO2007060639A2

公开(公告)日：2007-05-31

申请号：PCT/IB2006054444

申请日：2006-11-27

Applicant: NOKIA CORP ,  WENGER STEPHAN ,  CHANDRA UMESH ,  HANNUKSELA MISKA

Inventor： WENGER STEPHAN ,  CHANDRA UMESH ,  HANNUKSELA MISKA

IPC: H04N7/24

CPC classification number: H04N7/24 ,  H04N21/6379

Abstract: Transmitting content and tailoring encoding according to application requirements. To change encoding, choosing an operation point for encoding content depending on the application receiving the content, sending data representative of the chosen operation point to a sender of the content, receiving data representative of an operation point from a receiver of the content, adapting encoding of the content depending on the received data representative of the operation point, encoding the content based on the operation point, sending the encoded content to the receiver, and receiving the encoded content wherein the encoding is based on the operation point is provided.

Abstract translation: 根据应用需求传输内容和剪裁编码。 为了改变编码，根据接收内容的应用选择用于编码内容的操作点，将代表所选操作点的数据发送到内容的发送者，从内容的接收者接收表示操作点的数据，调整编码 根据接收到的表示操作点的数据来确定内容，基于操作点对内容进行编码，将编码内容发送给接收器，并且接收编码内容，其中编码基于操作点。

公开(公告)号：WO2020180966A1

公开(公告)日：2020-09-10

申请号：PCT/US2020/020955

申请日：2020-03-04

Applicant: TENCENT AMERICA LLC ,  WENGER, Stephan ,  CHOI, Byeongdoo ,  LIU, Shan

Inventor： WENGER, Stephan ,  CHOI, Byeongdoo ,  LIU, Shan

IPC: H04N19/169 ,  H04N19/70

Abstract: An approach for reconstructing a Network Abstraction Layer (NAL) unit for video decoding using at least one processor includes decoding a first syntax element included in a NAL unit header; determining, based on the first syntax element, a NAL unit class including a plurality of NAL unit types; decoding a second syntax element included in the NAL unit header; and based on the NAL unit class being a first NAL unit class, determining a NAL unit type from among the NAL unit types using a combination of the NAL unit class and the second syntax element, and reconstructing the NAL unit based on the determined NAL unit type; and based on the NAL unit class being a second NAL unit class, determining a temporal identifier (TID) based on the second syntax element, and reconstructing the NAL unit based on the determined TID.

公开(公告)号：WO2020139921A1

公开(公告)日：2020-07-02

申请号：PCT/US2019/068540

申请日：2019-12-26

Applicant: CHOI, Byeongdoo ,  WENGER, Stephan ,  LIU, Shan

Inventor： CHOI, Byeongdoo ,  WENGER, Stephan ,  LIU, Shan

IPC: H04N19/103 ,  H04N19/115 ,  H04N19/36 ,  H04N19/44

Abstract: An approach for reconstructing a current Network Abstraction Layer (NAL) unit for video decoding using at least one processor includes determining the current NAL unit to be an Intra Random Access Picture (IRAP) NAL unit; determining whether a previous NAL unit decoded immediately before the current NAL unit indicates an end of a coded video sequence (CVS); based on determining that the previous NAL unit indicates the end of the CVS, decoding the current NAL unit as one from among an Instantaneous Decoder Refresh (IDR) NAL unit or a Broken Link Access (BLA) NAL unit; and based on determining that the previous NAL unit does not indicate the end of the CVS, decoding the current NAL unit as a Clean Random Access (CRA) NAL unit, and reconstructing the decoded current NAL unit.

公开(公告)号：WO2020055589A1

公开(公告)日：2020-03-19

申请号：PCT/US2019/048538

申请日：2019-08-28

Applicant: WENGER, Stephan ,  LIU, Shan

Inventor： WENGER, Stephan ,  LIU, Shan

IPC: H04N19/169 ,  H04N19/196 ,  H04N19/463 ,  H04N19/127 ,  H04N19/70

Abstract: A method of and a device for decoding at least one video stream, each video stream of the at least one video stream associated with a respective Decoder Parameter Set. The method includes activating, by a decoder, the Decoder Parameter Set of a first video stream of the at least one video stream, processing, by the decoder, an End of Stream NAL unit that is made available to the decoder outside of the first video stream, and deactivating, by the decoder, the Decoder Parameter Set of the first video stream in response to the decoder processing the End of Stream NAL unit.