公开(公告)号：WO2008044142A3

公开(公告)日：2008-08-07

申请号：PCT/IB2007003200

申请日：2007-10-08

Applicant: NOKIA CORP ,  NOKIA INC ,  BOUAZIZI IMED ,  HANNUKSELA MISKA

Inventor： BOUAZIZI IMED ,  HANNUKSELA MISKA

IPC: H04N5/44 ,  H04N5/50

CPC classification number: H04N21/4384 ,  H04N5/4401 ,  H04N21/4331

Abstract: Provided are apparatuses and methods for reducing channel switching time in a network environment. The user of a mobile terminal may receive a data stream containing numerous television programs or services. Each of the programs or services may have a Packet Identification (PID) and/or IP address. The invention reduces channel switching time by predicting channel changing behavior. Various procedures are presented in which data is received and cached. The cached data may then be used to reduce the channel switching time during synchronizing and decoding of the new channel.

Abstract translation: 提供了一种用于在网络环境中减少信道切换时间的装置和方法。 移动终端的用户可以接收包含许多电视节目或服务的数据流。 每个程序或服务可以具有分组标识（PID）和/或IP地址。 本发明通过预测信道改变行为来减少信道切换时间。 介绍了接收和缓存数据的各种程序。 然后，缓存的数据可以用于在新信道的同步和解码期间减少信道切换时间。

公开(公告)号：WO2008007304A2

公开(公告)日：2008-01-17

申请号：PCT/IB2007052605

申请日：2007-07-04

Applicant: NOKIA CORP ,  NOKIA INC ,  WANG YE-KUI ,  HANNUKSELA MISKA

Inventor： WANG YE-KUI ,  HANNUKSELA MISKA

IPC: H04N7/26

CPC classification number: H04N19/33 ,  H04N19/17 ,  H04N19/61 ,  H04N19/70

Abstract: A method for signaling ROI scalability information in a file format. The present invention provides an efficient signaling of ROI scalability information in the file format, wherein the signaling comprises providing the geometrical information of a ROI and an indication to identify the ROI each coded data unit is associated with within a tier or layer.

Abstract translation: 用于以文件格式发送ROI可伸缩性信息的方法。 本发明提供了以文件格式的ROI可伸缩性信息的有效信令，其中信令包括提供ROI的几何信息以及用于识别每个编码数据单元与一层或多层相关联的ROI的指示。

公开(公告)号：WO2007074361A3

公开(公告)日：2007-11-29

申请号：PCT/IB2006003424

申请日：2006-11-24

Applicant: NOKIA CORP ,  NOKIA INC ,  HANNUKSELA MISKA ,  REZAEI MEHDI

Inventor： HANNUKSELA MISKA ,  REZAEI MEHDI

IPC: H04N7/24

CPC classification number: H04N21/64315 ,  H04N21/23424 ,  H04N21/4384 ,  H04N21/44016

Abstract: The time until a media decoder is refreshed to produce correct output samples is minimized if an IDR picture is the first picture in a decoding order in each MPE-FEC frame. A system enabling minimization of tune-in delay is described. Aspects of the system include a content encoder for receiving a source signal including first and second bit streams and for encoding the first and second bit streams, the encoded first bit stream including a decoder refresh bit stream and the encoded second bit stream including a media bit stream. A server receives the encoded first and second bit streams and encapsulates the encoded first and second bit streams into packets. An encapsulator then receives the packets and composes a time-sliced multi-protocol encapsultation (MPE) stream by replacing a spliceable picture from the encoded second bit stream.

Abstract translation: 如果IDR图片是每个MPE-FEC帧中的解码顺序中的第一个图片，则媒体解码器被刷新以产生正确的输出样本的时间被最小化。 描述了使调谐延迟最小化的系统。 该系统的各方面包括一种内容编码器，用于接收包括第一和第二比特流的源信号并用于编码第一和第二比特流，编码的第一比特流包括解码器刷新比特流，并且编码的第二比特流包括媒体比特 流。 服务器接收编码的第一和第二比特流并将编码的第一和第二比特流封装成分组。 然后封装器接收分组并且通过从编码的第二比特流中替换可拼接图片来组成时间分片多协议封装（MPE）流。

公开(公告)号：WO2007110742A2

公开(公告)日：2007-10-04

申请号：PCT/IB2007000757

申请日：2007-03-27

Applicant: NOKIA CORP ,  NOKIA INC ,  HANNUKSELA MISKA ,  WANG YE-KUI

Inventor： HANNUKSELA MISKA ,  WANG YE-KUI

IPC: H04N7/26

CPC classification number: H04N19/31 ,  H04N19/30 ,  H04N19/37 ,  H04N19/46 ,  H04N19/61 ,  H04N19/63 ,  H04N19/70

Abstract: The use of a picture delimiter that is contained in a NAL unit type value that is reserved in the current AVC or SVC specification. The present invention provides the scalability information for the H.264/AVC base layer in such a manner that bitstreams remain decodable with H.264/AVC decoders. In addition, the picture delimiter of the present invention may contain many other syntax elements that can help in easier processing of bitstreams compared to the plain H.264/AVC bitstream syntax.

Abstract translation: 使用包含在当前AVC或SVC规范中保留的NAL单元类型值的图像分隔符。 本发明以H.264 / AVC解码器保持解码的方式为H.264 / AVC基础层提供可扩展性信息。 此外，与普通的H.264 / AVC比特流语法相比，本发明的图像分隔符可以包含许多其他语法元素，其可以帮助比特流的更容易的处理。

公开(公告)号：WO2006085137A3

公开(公告)日：2006-10-26

申请号：PCT/IB2005003835

申请日：2005-12-20

Applicant: NOKIA CORP ,  NOKIA INC ,  WENGER STEPHAN ,  HANNUKSELA MISKA

Inventor： WENGER STEPHAN ,  HANNUKSELA MISKA

IPC: H04N7/15 ,  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，每个输入流被划分为多个片，每个片具有包括片首字段中的第一mb的多个标题字段。 基于输出流中的图像格式，修改每个输入流的切片中的第一个mb，使得切片头部字段中的修改的第一个mb表示输入流的片段的输出流的空间表示中的位置 被放置 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：WO2008102323A3

公开(公告)日：2008-11-13

申请号：PCT/IB2008050642

申请日：2008-02-22

Applicant: NOKIA CORP ,  NOKIA INC ,  HANNUKSELA MISKA ,  WANG YE-KUI

Inventor： HANNUKSELA MISKA ,  WANG YE-KUI

IPC: H04L29/06 ,  H04N7/24 ,  H04N7/26

CPC classification number: H04L65/607 ,  H04L65/608 ,  H04N19/597 ,  H04N19/61

Abstract: A system and method for conveying information that is helpful for a network middlebox or a media player to decided which coded data units to forward or process within an RTP payload or a file format data unit in an easy-to-access manner. This mechanism can be used to provide indications of items such as redundant coded pictures, temporal level switching points, gradual decoding refresh access points, view identifiers, and view random access points. A middlebox and/or receiver can then use this information to determine whether certain coded data units need to be processed and/or transmitted.

Abstract translation: 一种用于传送有助于网络中间件或媒体播放器的信息的系统和方法，以便以易于访问的方式决定哪些编码数据单元在RTP有效载荷或文件格式数据单元内转发或处理。 该机制可以用于提供诸如冗余编码图片，时间级切换点，逐步解码刷新接入点，视图标识符和查看随机接入点等项目的指示。 中间盒和/或接收器然后可以使用该信息来确定某些编码数据单元是否需要被处理和/或传输。

公开(公告)号：WO2008129500A2

公开(公告)日：2008-10-30

申请号：PCT/IB2008051513

申请日：2008-04-18

Applicant: NOKIA CORP ,  NOKIA INC ,  HANNUKSELA MISKA

Inventor： HANNUKSELA MISKA

IPC: H04N7/24 ,  H04N5/00 ,  H04N7/26 ,  H04N7/54

CPC classification number: H04N21/6437 ,  H04N19/107 ,  H04N19/172 ,  H04N19/46 ,  H04N19/597 ,  H04N19/61 ,  H04N21/4384 ,  H04N21/64315

Abstract: A system and method by which instantaneous decoding refresh (IDR)/intra pictures that enable one to tune in or randomly access a media stream are included within a "normal" bitstream as redundant coded pictures. In various embodiments, each intra picture for tune-in is provided as a redundant coded picture, in addition to the corresponding primary inter-coded picture.

Abstract translation: 通过其将使得能够调谐或随机访问媒体流的瞬时解码刷新（IDR）/帧内图像作为冗余编码图像被包括在“正常”比特流内的系统和方法。 在各种实施例中，除了相应的主要帧间编码图像之外，每个用于调入的画面内都被提供为冗余编码画面。

公开(公告)号：WO2007110757A3

公开(公告)日：2008-02-07

申请号：PCT/IB2007000780

申请日：2007-03-27

Applicant: NOKIA CORP ,  NOKIA INC ,  WANG YE-KUI ,  HANNUKSELA MISKA

Inventor： WANG YE-KUI ,  HANNUKSELA MISKA

IPC: H04N7/26

CPC classification number: H04N19/33 ,  H04N19/187 ,  H04N19/194 ,  H04N19/29 ,  H04N19/61 ,  H04N19/70

Abstract: A system and method for separating the data needed for inter-layer prediction and data unneeded for inter-layer prediction in the bitstream. For the coded data of a picture, the decoding of the data needed for inter-layer prediction is performed independent of the data not needed for inter-layer prediction, and it is identified whether the data is needed for inter-layer prediction.

Abstract translation: 用于分离层间预测所需的数据和不需要用于比特流中的层间预测的数据的系统和方法。 对于图像的编码数据，与层间预测不需要的数据独立地执行层间预测所需的数据的解码，并且确定层间预测是否需要数据。

公开(公告)号：WO2007110741A3

公开(公告)日：2008-02-07

申请号：PCT/IB2007000756

申请日：2007-03-27

Applicant: NOKIA CORP ,  WANG XIANGLIN ,  WANG YE-KUI ,  HANNUKSELA MISKA

Inventor： WANG XIANGLIN ,  WANG YE-KUI ,  HANNUKSELA MISKA

IPC: H04N7/50

CPC classification number: H04N19/34 ,  H04N19/31 ,  H04N19/423 ,  H04N19/573 ,  H04N19/58 ,  H04N19/61 ,  H04N19/70

Abstract: A device, an encoding method, and a decoding method enable a separate marking of base representations and enhanced representations of key access units to save memory or to allow a better scalable video coding optimization. The encoding method of a sequence of original pictures to a sequence of access units includes, after encoding of one of the access units, storing a first decoded picture of the first encoded picture and a second decoded picture of the second encoded picture for inter prediction for encoding of others of the access units; and identifying the first decoded picture and the second decoded picture to be no longer used for inter prediction. The decoding method includes decoding the first access unit, where a first decoded picture is decoded from the first picture and a second decoded picture is decoded from the second picture; marking the first and second decoded pictures as used for inter prediction; decoding the second access unit; and marking one of the first and second decoded pictures as no longer used for inter prediction.

Abstract translation: 一种设备，编码方法和解码方法能够分别标记基本表示和密钥访问单元的增强表示以节省存储器或允许更好的可扩展视频编码优化。 原始图像序列到接入单元序列的编码方法包括：在编码一个访问单元之后，存储第一编码图像的第一解码图像和用于帧间预测的第二编码图像的第二解码图像 对其他访问单元的编码; 并且识别第一解码图像和第二解码图像不再用于帧间预测。 解码方法包括对第一存取单元进行解码，其中第一解码图像从第一图像解码，第二解码图像从第二图像解码; 标记用于帧间预测的第一和第二解码图像; 解码第二存取单元; 并且将第一和第二解码图像中的一个标记为不再用于帧间预测。

公开(公告)号：WO2007042916B1

公开(公告)日：2007-06-07

申请号：PCT/IB2006002841

申请日：2006-10-11

Applicant: NOKIA CORP ,  NOKIA INC ,  WANG YE-KUI ,  HANNUKSELA MISKA

Inventor： WANG YE-KUI ,  HANNUKSELA MISKA

IPC: H04N7/26

CPC classification number: H04N21/2402 ,  H04N19/107 ,  H04N19/31 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70 ,  H04N21/234327 ,  H04N21/2662 ,  H04N21/8455 ,  H04N21/85406

Abstract: A system and method for signaling low-to-high layer switching points in a file format level to enable efficient scalable stream switching in streaming servers and local file playback. The present invention also provides for a system and method for signaling low-to-high layer switching points in video bit stream, e.g., to enable intelligent forwarding of scalability layers in media-aware network elements or computationally scalable decoding in stream recipients.

Abstract translation: 一种用于以文件格式级别发信号通知低到高层切换点的系统和方法，以实现流服务器中的高效可缩放流切换和本地文件回放。 本发明还提供了用于发信号通知视频比特流中的低至高层切换点的系统和方法，例如以实现媒体感知网络元件中的可伸缩性层的智能转发或者流接收者中的计算可缩放解码。