公开(公告)号：JP2007300676A

公开(公告)日：2007-11-15

申请号：JP2007187429

申请日：2007-07-18

Applicant: Nokia Corp ,  ノキア コーポレイション

Inventor： LAINEMA JANI ,  DOBRIN BOGDAN-PAUL ,  KARCZEWICZ MARTA

IPC: H04J3/00 ,  H04N1/409 ,  H04N1/41 ,  H04N19/80 ,  H04N19/86 ,  H04N19/89 ,  H04N19/895

CPC classification number: H04N19/527 ,  H04N19/86 ,  H04N19/895

Abstract: PROBLEM TO BE SOLVED: To reduce a visual artifact in a digital image which is encoded by blocks (B1, B2, B3, B4) and is to be decoded subsequently. SOLUTION: Filtering is implemented for reducing the visual artifact caused by boundaries (R12, R13, R24, R34) between present and neighboring blocks (B1, B2, B3, B4). Filtering is implemented after decoding the present block (B1, B2, B3, B4) and a boundary available for filtering between the present block and a decoded block is present. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：减少由块（B1，B2，B3，B4）编码的数字图像中的视觉伪影，并随后进行解码。

解决方案：实现滤波以减少由当前和相邻块（B1，B2，B3，B4）之间的边界（R12，R13，R24，R34）引起的视觉伪影。 在解码当前块（B1，B2，B3，B4）之后实现滤波，并且存在可用于当前块和解码块之间的滤波的边界。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008178149A

公开(公告)日：2008-07-31

申请号：JP2008101068

申请日：2008-04-09

Applicant: Nokia Corp ,  ノキア コーポレイション

Inventor： KARCZEWICZ MARTA ,  LAINEMA JANI ,  DOBRIN BOGDAN-PAUL

IPC: H04N7/32 ,  H04N7/26

CPC classification number: H04N19/517 ,  H04N19/147 ,  H04N19/19 ,  H04N19/46 ,  H04N19/543 ,  H04N19/567

Abstract: PROBLEM TO BE SOLVED: To provide an apparatus that performs motion compensation coding of video sequences, and to provide an associated method. SOLUTION: Motion compensated prediction is utilized in the representation of motion vector fields. Reduced numbers of bits are required to represent the motion vector field while maintaining a low prediction error, thereby facilitating improved communication of, and recreation of, video frames forming a video sequence. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种执行视频序列的运动补偿编码并提供相关方法的装置。 运动补偿预测用于运动矢量场的表示。 需要减少位数来表示运动矢量场，同时维持低预测误差，从而有助于改进形成视频序列的视频帧的通信和娱乐。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007312397A

公开(公告)日：2007-11-29

申请号：JP2007139572

申请日：2007-05-25

Applicant: Nokia Corp ,  ノキア コーポレイション

Inventor： LAINEMA JANI

IPC: H04N19/50 ,  H04N19/105 ,  H04N19/134 ,  H04N19/146 ,  H04N19/154 ,  H04N19/176 ,  H04N19/186 ,  H04N19/19 ,  H04N19/196 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/61 ,  H04N19/625

Abstract: PROBLEM TO BE SOLVED: To save calculation time and capability, while maintaining proper image quality. SOLUTION: A method of encoding a video frame in a communication system, includes steps of creating video frames each of which is composed of continuous still frames; storing frame restructure data of at least one frame as a reference frame and movement data of encoded adjacent blocks; determining the movement data of encoded blocks using movement vectors of one or more encoded adjacent blocks from adjacent blocks created by using the stored reference frames; and determining the frame reconstruction data and movement data that indicate encoded blocks. The method has a prescribed image quality and provides prescribed encoding efficiency. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：节省计算时间和能力，同时保持正确的图像质量。 解决方案：一种对通信系统中的视频帧进行编码的方法，包括：创建各自由连续静止帧组成的视频帧的步骤; 存储至少一帧的帧重组数据作为参考帧和编码相邻块的移动数据; 使用通过使用所存储的参考帧创建的相邻块的一个或多个编码相邻块的运动向量来确定编码块的移动数据; 以及确定指示编码块的帧重建数据和移动数据。 该方法具有规定的图像质量并提供规定的编码效率。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007135219A

公开(公告)日：2007-05-31

申请号：JP2006323823

申请日：2006-11-30

Applicant: Nokia Corp ,  ノキア コーポレイション

Inventor： LAINEMA JANI

IPC: A01K67/027 ,  H04N7/32 ,  A61K31/7088 ,  A61K38/00 ,  A61K39/395 ,  A61K48/00 ,  A61P9/00 ,  C07K14/47 ,  C07K14/665 ,  C07K14/705 ,  C07K14/78 ,  C07K16/18 ,  C12N1/15 ,  C12N1/19 ,  C12N1/21 ,  C12N5/10 ,  C12N9/02 ,  C12N9/88 ,  C12N15/09 ,  C12N15/11 ,  C12N15/12 ,  C12P21/02 ,  C12Q1/68 ,  G01N33/15 ,  G01N33/50 ,  G01N33/53 ,  G01N33/68

CPC classification number: C12N9/0053 ,  A01K2217/05 ,  A01K2217/075 ,  A61K38/00 ,  A61K48/00 ,  C07K14/47 ,  C07K14/665 ,  C07K14/70585 ,  C07K14/78 ,  C07K2319/02 ,  C12N9/88 ,  C12N15/11 ,  C12Q1/6883 ,  C12Q2600/158

Abstract: PROBLEM TO BE SOLVED: To provide an improvement method for coded video frames, and improvements of video coders (encoders) and subscriber terminal devices. SOLUTION: An encoding method for video frames in a communication system has a step for creating video frames that is composed of continuous still frames, a step for storing frame restructure data of at least one frame as a reference frame and movement data of encoded adjacent blocks, a step for determining movement data of encoded blocks using movement vectors of one or more encoded adjacent blocks from adjacent blocks created using the stored reference frames, and a step for determining frame restructure data and movement data that indicates encoded blocks. The method can provide a specified image quality and encoding efficiency. COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供编码视频帧的改进方法以及视频编码器（编码器）和用户终端装置的改进。 解决方案：通信系统中的视频帧的编码方法具有创建由连续静止帧构成的视频帧的步骤，将至少一帧的帧重组数据作为参考帧存储的步骤和移动数据 编码相邻块的步骤，使用使用所存储的参考帧创建的相邻块的一个或多个编码相邻块的运动向量来确定编码块的移动数据的步骤，以及用于确定指示编码块的帧重组数据和移动数据的步骤。 该方法可以提供指定的图像质量和编码效率。 版权所有（C）2007，JPO＆INPIT

公开(公告)号：WO2008122956A3

公开(公告)日：2008-12-24

申请号：PCT/IB2008051325

申请日：2008-04-08

Applicant: NOKIA CORP ,  NOKIA INC ,  UGUR KEMAL ,  LAINEMA JANI

Inventor： UGUR KEMAL ,  LAINEMA JANI

IPC: H04N7/36

CPC classification number: H04N19/523 ,  H04N19/53 ,  H04N19/61

Abstract: Two-stage interpolation can be provided for frame prediction samples with quarter- pixel and finer accuracy. All samples of quarter-pixel and finer accuracy can use either half or full/integer-pixels in a bi-linear interpolation to allow for the use of higher accuracy motion vectors, such as one-eighth-pixel accuracy motion vectors. The motion vectors can be restricted in a manner such that they are not allowed to point to every possible sub-pixel sample on a sub-pixel grid, but rather a subset of those sub-pixel samples. In addition, the same full/integer and half-pixel samples that can be used to obtain a quarter-pixel sample can also be used to obtain a one-eighth- pixel sample that the quarter-pixel sample is connected to. Hence, for every quarter- pixel sample, a motion vector could point to two additional positions/locations with one-eighth-pixel accuracy, where the two additional positions/locations can be calculated using the same half or integer-pixel samples which were used to obtain the quarter-pixel sample. Therefore, an arbitrary motion vector accuracy can be achieved without the need to perform additional interpolation stages or increase the complexity of a decoder configured to decode motion vector data.

Abstract translation: 可以为四分之一像素和更精细的帧预测采样提供两级插值。 四分之一像素和更精细的所有样本可以在双线性插值中使用半或全/整像素，以允许使用更高精度的运动矢量，例如八分之一像素精度的运动矢量。 运动矢量可以以这样的方式被限制，使得它们不被允许指向子像素网格上的每个可能的子像素样本，而是指向那些子像素样本的子集。 另外，也可以使用可用于获得四分之一像素样本的相同的完整/整数和半像素样本来获得四分之一像素样本所连接的八分之一像素样本。 因此，对于每个四分之一像素样本，运动矢量可指向具有八分之一像素精度的两个额外位置/位置，其中可使用相同的半个或整数像素样本来计算两个额外位置/位置 以获得四分之一像素样本。 因此，可以实现任意的运动矢量精度，而不需要执行额外的内插级或增加被配置为解码运动矢量数据的解码器的复杂度。

公开(公告)号：WO2004025943A3

公开(公告)日：2004-06-10

申请号：PCT/US0312489

申请日：2003-04-23

Applicant: NOKIA CORP ,  NOKIA INC

Inventor： LAINEMA JANI

IPC: H04N7/30 ,  G06T9/00 ,  H03M7/36 ,  H04N5/00 ,  H04N7/26 ,  H04N7/32 ,  H04N7/50 ,  H04N7/18

CPC classification number: H04N19/463 ,  H04N19/126 ,  H04N19/136 ,  H04N19/174 ,  H04N19/196 ,  H04N19/61 ,  H04N19/70

Abstract: A method and device (600) for coding of digital video sequence, wherein an indication of quantization parameter is provided in the encoded bit-stream for decoding purposes. The QP related information is indicated by introducing a sequence level quantization parameter value SQP. More specifically, instead of coding the absolute values of picture/slice QPs, an indication of the difference delta QP (624) between the sequence level quantization SQP and the picture/slice, and enables a statiscally smaller difference value to be transmitted, thus providing a reduction in transmission bit-rate. The difference value is subsequently used in a corresponding decoder to recnstruct the picture/slice QP.

Abstract translation: 一种用于编码数字视频序列的方法和装置（600），其中在编码的比特流中提供量化参数的指示以进行解码。 通过引入序列级量化参数值SQP来指示QP相关信息。 更具体地，代替对图片/片段QP的绝对值进行编码，在序列级量化SQP与图片/片段之间的差异增量QP（624）的指示，并且能够发送统计较小的差值，从而提供 传输比特率的降低。 随后在对应的解码器中使用差值来重建图像/片段QP。

公开(公告)号：WO2009115901A3

公开(公告)日：2009-12-10

申请号：PCT/IB2009000550

申请日：2009-03-18

Applicant: NOKIA CORP ,  HALLAPURO ANTTI OLLI ,  UGUR KEMAI ,  LAINEMA JANI

Inventor： HALLAPURO ANTTI OLLI ,  UGUR KEMAI ,  LAINEMA JANI

IPC: H04N7/26 ,  H04N7/34 ,  H04N7/36

CPC classification number: H04N19/513 ,  H04N19/52 ,  H04N19/573 ,  H04N19/593

Abstract: A system and method for improving the coding efficiency of motion vector information in video coding. According to various embodiments, a list of motion vector predictor candidates is arranged according to predefined rules. Each motion vector also has a reference index associated with it. One of the motion vector candidates is then selected as a predictor based on predefined rules, or the selection is explicitly signaled in the bitstream. The reference index associated with the selected motion vector is used as a reference index for the current block. The reference index is predicted along with the motion vector. Such embodiments can improve the compression efficiency of modern video codecs.

Abstract translation: 一种用于提高视频编码中的运动矢量信息的编码效率的系统和方法。 根据各种实施例，根据预定义的规则来布置运动矢量预测器候选的列表。 每个运动矢量也具有与之相关联的参考索引。 然后基于预定义的规则将运动矢量候选中的一个选择为预测器，或者在比特流中明确地用信号通知选择。 与所选运动矢量相关联的参考索引用作当前块的参考索引。 参考索引与运动矢量一起预测。 这样的实施例可以提高现代视频编解码器的压缩效率。

公开(公告)号：WO2009044356A2

公开(公告)日：2009-04-09

申请号：PCT/IB2008054008

申请日：2008-10-02

Applicant: NOKIA CORP ,  NOKIA INC ,  RUSANOVSKYY DMYTRO ,  UGUR KEMAL ,  LAINEMA JANI

Inventor： RUSANOVSKYY DMYTRO ,  UGUR KEMAL ,  LAINEMA JANI

CPC classification number: H04N19/523 ,  H04N19/117 ,  H04N19/182 ,  H04N19/46 ,  H04N19/61 ,  H04N19/82

Abstract: A system and method for implementing an adaptive interpolation filter structure that achieves high coding efficiency with significantly less complexity than more conventional systems. In various embodiments, a set-of integer pixels are defined that are used in the interpolation process to obtain each sub-pixel sample at different locations. Samples at each sub-pixel positions are generated with independent pixel-aligned one-dimensional (1D) adaptive interpolation filters. The filter coefficients are be transmitted to a decoder or stored into a bit stream. At the decoder end, the received filtered coefficients may be used in an interpolation process to create a motion-compensated prediction.

Abstract translation: 一种用于实现自适应内插滤波器结构的系统和方法，其实现了比传统系统显着更小的复杂度的高编码效率。 在各种实施例中，定义了一组整数像素，其用于内插处理以在不同位置获得每个子像素样本。 每个子像素位置处的样本都是用独立的像素对齐一维（1D）自适应内插滤波器生成的。 滤波器系数被发送到解码器或存储到比特流中。 在解码器端，可以在插值过程中使用所接收的滤波系数以产生运动补偿预测。

公开(公告)号：WO2008047300A3

公开(公告)日：2008-07-03

申请号：PCT/IB2007054197

申请日：2007-10-15

Applicant: NOKIA CORP ,  NOKIA INC ,  UGUR KEMAL ,  LAINEMA JANI ,  HANNUKSELA MISKA

Inventor： UGUR KEMAL ,  LAINEMA JANI ,  HANNUKSELA MISKA

IPC: H04N7/26 ,  H04N13/00

CPC classification number: H04N19/59 ,  H04N19/105 ,  H04N19/117 ,  H04N19/129 ,  H04N19/176 ,  H04N19/436 ,  H04N19/44 ,  H04N19/46 ,  H04N19/517 ,  H04N19/597 ,  H04N19/61 ,  H04N19/70 ,  H04N19/82 ,  H04N19/91

Abstract: A system and method for enabling parallel decoder implementation for different views, even when there are existing dependencies between views. In various embodiments of the present invention, information is signaled to a decoder that slices are coded using certain constraints, so that parallel decoding of slices is possible. This signaling can be performed at a sequence parameter set level, or it could be performed at picture parameter set level, slice header level or macroblock header level. Additionally, the delay between various views is also signaled to the decoder, at the same location as the constraint information in various embodiments. Various algorithms can also be used to improve the coding efficiency of the system.

Abstract translation: 即使当视图之间存在依赖关系时，也可以为不同的视图实现并行解码器的系统和方法。 在本发明的各种实施例中，向解码器发信号通知使用特定约束来对切片进行编码的信息，从而切片的并行解码是可能的。 该信令可以在序列参数设置级别执行，或者可以在图像参数设置级别，片头级别或宏块头级别执行。 此外，各种视图之间的延迟也在与各种实施例中的约束信息相同的位置处被通知给解码器。 也可以使用各种算法来提高系统的编码效率。

公开(公告)号：WO2004006558A2

公开(公告)日：2004-01-15

申请号：PCT/IB0302707

申请日：2003-07-09

Applicant: NOKIA CORP ,  NOKIA INC

Inventor： HALLAPURO ANTTI ,  LAINEMA JANI ,  KARCZEWICZ MARTA

IPC: H04N7/32 ,  G06T9/00 ,  H03M7/36 ,  H04N7/12 ,  H04N7/26 ,  H04N7/36 ,  H04N

CPC classification number: H04N19/577 ,  H04N19/117 ,  H04N19/139 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/51 ,  H04N19/523 ,  H04N19/573 ,  H04N19/587 ,  H04N19/80

Abstract: A method and system for coding a video sequence based on motion compensated prediction, wherein an interpolation filter is used to generate predicted pixel values for picture blocks in the video sequence. The interpolation filter for use in conjunction with a multi-picture type is shorter or having fewer coefficients than the interpolation filter for use in conjunction with a single-picture type. As such, the complexity of the interpolation filter for the multi-picture type can be reduced. Furthermore, the interpolation filter may be changed based on the characteristics of the block, the size and/or the shape of the block.

Abstract translation: 一种用于基于运动补偿预测编码视频序列的方法和系统，其中使用内插滤波器来生成视频序列中的图像块的预测像素值。 与多图像类型一起使用的内插滤波器比与用于与单图像类型一起使用的内插滤波器更短或具有更少的系数。 因此，可以减少多图像类型的内插滤波器的复杂度。 此外，可以基于块的特性，块的大小和/或形状来改变内插滤波器。