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    • 112. 发明申请
    • AN APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING
    • 一种视频编码和解码的装置,方法和计算机程序
    • WO2014106685A1
    • 2014-07-10
    • PCT/FI2013/051216
    • 2013-12-31
    • NOKIA CORPORATION
    • HANNUKSELA, MiskaUGUR, Kemal
    • H04N19/34H04N19/29H04N19/70H04N19/103
    • H04N19/463H04N19/30H04N19/61H04N19/70
    • A method comprising encoding a bitstream comprising a base layer, a first enhancement layer and a second enhancement layer; encoding an indication of both the base layer and the first enhancement layer used for prediction for the second enhancement layer in the bitstream; encoding, in the bitstream, an indication of a first set of prediction types that is applicable from the base layer to the second enhancement layer, wherein the first set of prediction types is a subset of all prediction types available for prediction between layers, and encoding, in the bitstream, an indication of a second set of prediction types that is applicable from the base layer or the first enhancement layer to the second enhancement layer, wherein the second set of prediction types is a subset of all prediction types available for prediction between layers.
    • 一种方法,包括对包括基本层,第一增强层和第二增强层的比特流进行编码; 编码用于比特流中的第二增强层的用于预测的基本层和第一增强层的指示; 在比特流中对从基本层到第二增强层可应用的第一组预测类型的指示进行编码,其中第一组预测类型是可用于层间预测的所有预测类型的子集,以及编码 在比特流中,指示可从基本层或第一增强层适用于第二增强层的第二组预测类型,其中第二组预测类型是可用于预测的预测类型的子集, 层。
    • 113. 发明申请
    • VIDEO CODING
    • WO2003094496A3
    • 2003-11-13
    • PCT/IB2003/001672
    • 2003-04-30
    • NOKIA CORPORATIONNOKIA INC.
    • HANNUKSELA, Miska
    • H04N7/12
    • A method of encoding a video signal (101) representing a sequence of pictures, which comprises receiving a current picture for encoding (100), forming a temporal prediction of the current picture or a part thereof from a first reference picture or a part thereof associated with the current picture, and further comprising associating a second reference picture or a part thereof with the current picture for forming a temporal prediction of the current picture or a part thereof based on a similarity measure. The similarity measure is selected from a group which includes a measure indicative of the similarity between the first reference picture or a part thereof and the second reference picture or a part thereof and a measure indicative of a similarity between the current picture or a part thereof and the second reference picture or a part thereof. A corresponding video decoding method, video encoder and video decoder are presented.
    • 114. 发明申请
    • VIDEO ENCODING AND DECODING OF FOREGROUND AND BACKGROUND; WHEREIN PICTURE IS DIVIDED INTO SLICES
    • 视频编码和解码的前景和背景图片分为单曲
    • WO2003047266A1
    • 2003-06-05
    • PCT/IB2002/004932
    • 2002-11-22
    • NOKIA CORPORATION
    • HANNUKSELA, MiskaWANG, Ye-Kui
    • H04N7/26
    • H04N19/29H04N19/17H04N19/174H04N19/23
    • A video coding and decoding method, wherein a picture is first divided into sub-pictures corresponding to one or more subjectively important picture regions and to a background region sub-picture, which remains after the other sub-pictures are removed from the picture. The sub-pictures are formed to conform to predetermined allowable groups of video coding macroblocks (MBs). The allowable groups of MBs can be, for example, of rectangular shape. The picture is then divided into slices so that each sub-picture is encoded independent of other sub-pictures except for the background region sub-picture, which may be coded using another sub-pictures. The slices of the background sub-picture are formed in a scan-order with skipping over MBs that belong to another sub/picture. The background sub-picture is only decoded if all the positions and sizes of all other sub-pictures can be reconstructed on decoding the picture.
    • 一种视频编码和解码方法,其中首先将图像划分为与一个或多个主观重要的图像区域对应的子图像和在从图像中移除其它子图像之后保持的背景区域子图像。 子图像被形成为符合预定的允许的视频编码宏块MBs组。 MB的允许组可以是例如矩形。 然后将图像分成片,使得每个子图像独立于除了背景区域子图像之外的其他子图像,其可以使用另一个子图像进行编码。 背景子图像的切片以扫描顺序形成,跳过属于另一子图像的MB。 只有在对图像进行解码时可以重构所有其他子图像的所有位置和大小时,才解码背景子图像。
    • 116. 发明申请
    • METHOD AND APPARATUS FOR VIDEO CODING AND DECODING
    • 视频编码和解码的方法和装置
    • WO2014106692A1
    • 2014-07-10
    • PCT/FI2014/050007
    • 2014-01-07
    • NOKIA CORPORATION
    • UGUR, KemalHANNUKSELA, MiskaLAINEMA, Jani
    • H04N19/00H04N19/70H04N19/30
    • H04N19/00575H04N19/103H04N19/105H04N19/187H04N19/33H04N19/46H04N19/573H04N19/58H04N19/70H04N19/96
    • Various methods, apparatuses and computer program products for video encoding and decoding. In some embodiments a first picture having a first resolution on a first layer is encoded without inter-layer prediction; a second picture having a second resolution on a second layer is encoded without inter-layer prediction; a third picture having the second resolution on the second layer is encoded without inter-layer prediction and without temporally referencing to pictures prior to the second picture. Further, a corresponding indication is encoded. In some embodiments one or more indications are received to determine if a switching point, referring to a picture coded using inter- layer prediction, from the first layer to the second layer exists, and if so, pictures in the first layer prior to the switching point; pictures associated with the switching point; and pictures in the second layer after the switching point may be decoded.
    • 用于视频编码和解码的各种方法,设备和计算机程序产品。 在一些实施例中,在第一层上具有第一分辨率的第一图像被编码而没有层间预测; 编码没有层间预测的在第二层上具有第二分辨率的第二图像; 在第二层上具有第二分辨率的第三图像被编码而没有层间预测,而在时间上不参考第二图像之前的图像。 此外,相应的指示被编码。 在一些实施例中,接收一个或多个指示以确定是否存在参考从第一层到第二层使用层间预测编码的图像的切换点,如果是,则切换之前的第一层中的图像 点; 与切换点相关的图片; 并且切换点之后的第二层中的图像可以被解码。
    • 117. 发明申请
    • METHOD AND SYSTEM FOR BUFFERING STREAMED DATA
    • 用于缓冲流数据的方法和系统
    • WO2002063461A1
    • 2002-08-15
    • PCT/FI2002/000093
    • 2002-02-08
    • NOKIA CORPORATION
    • HANNUKSELA, MiskaAKSU, Emre, Baris
    • G06F5/06
    • H04L65/80H04L29/06027H04L65/4038H04L65/4084H04L65/602H04L65/604H04N21/23406H04N21/44004H04N21/6582
    • The invention discloses a method of improving the playback of streamed media on a client device by overcoming problems caused by variations in the transmission delay of packets due to network and transport protocol operation and variations in encoding/server specific delays. In an embodiment of the invention, a client device has a decoder (120) and a pre-decoder buffer (110) which receives streamed packets from source server via a packet network. The pre-decoder buffer is variable in size and has a variable initial buffering time for receiving the transmitted packets from the source server prior to decoding in the decoder. The initial buffering time and pre-decoder buffer size can be dynamically adapted for improved playback performance by the source server. In a further aspect of the invention, a post-decoder buffer operates in conjunction with the pre-encoder buffer to reduce decoding-related delay variations.
    • 本发明公开了一种通过克服由于网络和传输协议操作以及编码/服务器特定延迟变化引起的分组传输延迟变化引起的问题来改善客户端设备上的流媒体重放的方法。 在本发明的实施例中,客户端设备具有解码器(120)和预解码器缓冲器(110),其经由分组网络从源服务器接收流分组。 预解码器缓冲器的大小是可变的,并且具有可变的初始缓冲时间,用于在解码器中解码之前从源服务器接收所发送的分组。 初始缓冲时间和预解码器缓冲区大小可以动态地适应源服务器提高播放性能。 在本发明的另一方面,后解码器缓冲器与预编码器缓冲器一起工作以减少与解码相关的延迟变化。
    • 120. 发明申请
    • AN APPARATUS, A METHOD AND A COMPUTER PROGRAM FOR VIDEO CODING AND DECODING
    • 一种视频编码和解码的装置,方法和计算机程序
    • WO2014049210A1
    • 2014-04-03
    • PCT/FI2013/050941
    • 2013-09-27
    • NOKIA CORPORATION
    • LAINEMA, JaniHANNUKSELA, MiskaUGUR, KemalBICI, Mehmet Oguz
    • H04N19/34H04N19/29H04N19/503G06T7/20
    • H04N19/00587H04N19/30H04N19/513H04N19/59
    • In some embodiments, there is provided an apparatus, a computer readable storage medium stored with code thereon for use by an apparatus, and a video decoder, for decoding a video bitstream, to derive a motion compensated prediction for an enhancement layer block based on a motion compensation process on the co-located base layer block using the same or similar motion vector of enhancement layer blocks and base layer reference pictures. In other embodiments, there is provided a method, an apparatus, a computer readable storage medium stored with code thereon for use by an apparatus, and a video encoder, for encoding a video bitstream, to derive a motion compensated prediction for an enhancement layer block based on a motion compensation process on the co-located base layer block using the same or similar motion vector of enhancement layer blocks and base layer reference pictures.
    • 在一些实施例中,提供了一种设备,存储有用于设备使用的代码的计算机可读存储介质和用于对视频比特流进行解码的视频解码器,以基于以下内容导出用于增强层块的运动补偿预测 使用相同或相似的增强层块和基本层参考图片的运动矢量在同位置的基层块上的运动补偿处理。 在其他实施例中,提供了一种方法,装置,存储有用于装置使用的代码的计算机可读存储介质和用于编码视频比特流的视频编码器,以导出用于增强层块的运动补偿预测 基于使用相同或相似的增强层块和基本层参考图片的运动矢量的同位置基层块上的运动补偿处理。