公开(公告)号：US07342965B2

公开(公告)日：2008-03-11

申请号：US10423486

申请日：2003-04-25

申请人： Jani Lainema

发明人： Jani Lainema

IPC分类号： H04N7/18

CPC分类号： H03M7/40 ,  H04N19/61 ,  H04N19/91

摘要： A method and system for entropy coding, where parameters indicative of a coded signal are mapped into codeword indexes so that a decoder can reconstruct the coded signal from the codeword indexes. When the parameter space is limited such that the coding is inefficient in that the codewords are not arranged in an orderly or contiguous fashion corresponding to the parameters, a sorting step is used to sort the parameters into different groups so that parameters in different groups are mapped into the codeword indexes in different manners such that the codeword indexes corresponding to the parameters are assigned in a contiguous and orderly manner. The sorting can be based on the absolute values of the parameters in relation with a selected value. In the decoding process, the codewords indexes are also sorted into different groups based on the value of codewords indexex in relation to the selected value.

摘要翻译： 一种用于熵编码的方法和系统，其中指示编码信号的参数被映射到码字索引中，使得解码器可以从码字索引重建编码信号。 当参数空间被限制使得编码效率低下时，代码字不以对应于参数的有序或连续的方式排列，使用排序步骤将参数分类成不同的组，使得不同组中的参数被映射 以不同的方式进入码字索引，使得对应于参数的码字索引以连续且有序的方式分配。 排序可以基于与所选值相关的参数的绝对值。 在解码处理中，码字索引也根据与所选择的值相关的代码字indexex的值被分类成​​不同的组。

公开(公告)号：US20070140342A1

公开(公告)日：2007-06-21

申请号：US11609873

申请日：2006-12-12

申请人： Marta Karczewicz ,  Jani Lainema ,  Bogdan-Paul Dobrin

发明人： Marta Karczewicz ,  Jani Lainema ,  Bogdan-Paul Dobrin

IPC分类号： H04N7/12

CPC分类号： H04N19/517 ,  H04N19/147 ,  H04N19/19 ,  H04N19/46 ,  H04N19/543 ,  H04N19/567

摘要： Apparatus, and an associated method, motion compensates coding of video sequences. 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.

摘要翻译： 装置和相关联的方法，运动补偿视频序列的编码。 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。

公开(公告)号：US07161983B2

公开(公告)日：2007-01-09

申请号：US10795083

申请日：2004-03-05

申请人： Jani Lainema ,  Marta Karczewicz

发明人： Jani Lainema ,  Marta Karczewicz

IPC分类号： H04B1/66

CPC分类号： H04N19/517 ,  H04N19/147 ,  H04N19/19 ,  H04N19/46 ,  H04N19/543 ,  H04N19/567

摘要： A method for motion compensated encoding of video data.The method comprises the steps of: generating a motion vector field of video pixels of a current frame to be coded based on a reference frame; obtaining segmenting information defining the division of the current frame into image segments; coding the motion vector field of an image segment Sk to provide compressed motion information comprising a motion coefficient vector ck comprising a set of motion coefficients ci, such that ci·fi(x,y) represents the motion vector field, whereby fi(x,y) defines a certain set of basis functions, wherein i is an index defining a correspondence between each basis function and a corresponding motion coefficient; predicting a motion vector field of a subsequent image segment SL with a set of predicted motion coefficients pi based upon the previously generated motion coefficient vector ck; generating for the subsequent segment SL a set of refinement motion coefficients ri corresponding to the difference between the set of motion coefficients ci and a set of predicted motion coefficients pi such that pi+ri=ci. Another aspects of the invention comprise corresponding video codec, mobile station, telecommunications network and computer program product.

摘要翻译： 一种用于视频数据的运动补偿编码的方法。 该方法包括以下步骤：基于参考帧产生要编码的当前帧的视频像素的运动矢量场; 获取定义将当前帧划分成图像段的分段信息; 对图像片段S N k的运动矢量场进行编码以提供压缩运动信息，该压缩运动信息包括包含一组运动系数c i的运动系数矢量c < （x，y）表示运动矢量场，由此f（x，y）（x，y） 定义一组基函数，其中i是定义每个基函数与相应运动系数之间的对应关系的索引; 基于先前产生的运动系数向量c k来预测具有一组预测运动系数p i i i i的后续图像段S L L的运动矢量场， SUB>; 为后续段S L生成一组对应于运动系数集合i i i和i i之间的差的精细运动系数r i i i 一组预测的运动系数p i i i，使得p i i i i i i i i i i i i i i。 本发明的另一方面包括对应的视频编解码器，移动台，电信网络和计算机程序产品。

公开(公告)号：US06954502B2

公开(公告)日：2005-10-11

申请号：US10770986

申请日：2004-02-03

申请人： Jani Lainema

发明人： Jani Lainema

IPC分类号： H04N19/176 ,  G06T9/00 ,  H03M7/36 ,  H04N19/51 ,  H04N7/12

CPC分类号： H04N19/517 ,  H04N19/19 ,  H04N19/20 ,  H04N19/503 ,  H04N19/51 ,  H04N19/537 ,  H04N19/56 ,  H04N19/567

摘要： A method for encoding video information is presented, where a piece of current video information is segmented into macroblocks and a certain number of available macroblock segmentations for segmenting a macroblock into blocks is defined. Furthermore, for each available macroblock segmentation at least one available prediction method is defined, each of which prediction methods produces prediction motion coefficients for blocks within said macroblock, resulting in a certain finite number of available macroblock-segmentation—prediction-method pairs. For a macroblock one of the available macroblock-segmentation—prediction-method pairs is selected, and thereafter the macroblock is segmented into blocks and prediction motion coefficients for the blocks within said macroblock are produced using the selected macroblock-segmentation—prediction-method pair. A corresponding decoding method, an encoder and a decoder are also presented.

摘要翻译： 提出了一种用于编码视频信息的方法，其中一条当前视频信息被分割为宏块，并且定义了一定数量的用于将宏块分割成块的可用宏块分段。 此外，对于每个可用宏块分割，定义至少一个可用的预测方法，其中每个预测方法产生用于所述宏块内的块的预测运动系数，导致可用的宏块分割预测方法对的一定的有限数量。 对于宏块，选择可用的宏块分割预测方法对中的一个，此后，宏块被分割为块，并且使用所选择的宏块分割预测方法对来产生所述宏块内的块的预测运动系数。 还提出了相应的解码方法，编码器和解码器。

公开(公告)号：US08411757B2

公开(公告)日：2013-04-02

申请号：US11609873

申请日：2006-12-12

申请人： Marta Karczewicz ,  Jani Lainema ,  Bogdan-Paul Dobrin

发明人： Marta Karczewicz ,  Jani Lainema ,  Bogdan-Paul Dobrin

IPC分类号： H04B1/66

CPC分类号： H04N19/517 ,  H04N19/147 ,  H04N19/19 ,  H04N19/46 ,  H04N19/543 ,  H04N19/567

摘要： Apparatus, and an associated method, motion compensates coding of video sequences. 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.

摘要翻译： 装置和相关联的方法，运动补偿视频序列的编码。 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。

公开(公告)号：US20070291849A1

公开(公告)日：2007-12-20

申请号：US11881367

申请日：2007-07-26

申请人： Jani Lainema

发明人： Jani Lainema

IPC分类号： H04N7/12

CPC分类号： H04N19/463 ,  H04N19/126 ,  H04N19/136 ,  H04N19/174 ,  H04N19/196 ,  H04N19/61 ,  H04N19/70

摘要： A method and device for coding of digital video sequence, wherein an indication of quantization parameter (QP) 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 ΔQP between the sequence level quantization parameter SQP and the picture/slice QP is provided. This eliminates the need to transmit a full QP for every picture/slice, and enables a statistically 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 reconstruct the picture/slice QP.

摘要翻译： 一种用于编码数字视频序列的方法和装置，其中在编码比特流中提供量化参数（QP）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，代替对图像/片段QP的绝对值进行编码，提供了序列级量化参数SQP和图像/片段QP之间的差值ΔQP的指示。 这消除了为每个图像/片段发送完整QP的需要，并且能够传输统计上更小的差值，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：US07263125B2

公开(公告)日：2007-08-28

申请号：US10421629

申请日：2003-04-23

申请人： Jani Lainema

发明人： Jani Lainema

IPC分类号： H04N7/12 ,  G06K9/36

CPC分类号： H04N19/463 ,  H04N19/126 ,  H04N19/136 ,  H04N19/174 ,  H04N19/196 ,  H04N19/61 ,  H04N19/70

摘要： A method and device for coding of digital video sequence, wherein an indication of quantization parameter (QP) 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 ΔQP between the sequence level quantization parameter SQP and the picture/slice QP is provided. This eliminates the need to transmit a full QP for every picture/slice, and enables a statistically 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 reconstruct the picture/slice QP.

公开(公告)号：US07149251B2

公开(公告)日：2006-12-12

申请号：US10778449

申请日：2004-02-13

申请人： Marta Karczewicz ,  Jani Lainema ,  Bogdan-Paul Dobrin

发明人： Marta Karczewicz ,  Jani Lainema ,  Bogdan-Paul Dobrin

IPC分类号： H04B1/66

CPC分类号： H04N19/517 ,  H04N19/147 ,  H04N19/19 ,  H04N19/46 ,  H04N19/543 ,  H04N19/567

摘要： Apparatus, and an associated method, motion compensates coding of video sequences. 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.

公开(公告)号：US20060013317A1

公开(公告)日：2006-01-19

申请号：US11219917

申请日：2005-09-07

申请人： Jani Lainema

发明人： Jani Lainema

IPC分类号： H04B1/66 ,  H04N11/02 ,  H04N11/04 ,  H04N7/12

CPC分类号： H04N19/517 ,  H04N19/19 ,  H04N19/20 ,  H04N19/503 ,  H04N19/51 ,  H04N19/537 ,  H04N19/56 ,  H04N19/567

摘要： A method for encoding video information is presented, where a piece of current video information is segmented into macroblocks and a certain number of available macroblock segmentations for segmenting a macroblock into blocks is defined. Furthermore, for each available macroblock segmentation at least one available prediction method is defined, each of which prediction methods produces prediction motion coefficients for blocks within said macroblock resulting in a certain finite number of available macroblock-segmentation—prediction-method pairs. For a macroblock, one of the available macroblock-segmentation—prediction-method pairs is selected, and thereafter the macroblock is segmented into blocks and prediction motion coefficients for the blocks within said macroblock are produced using the selected macroblock-segmentation—prediction-method pair. A corresponding decoding method, an encoder and a decoder are also presented.

摘要翻译： 提出了一种用于编码视频信息的方法，其中一条当前视频信息被分割为宏块，并且定义了一定数量的用于将宏块分割成块的可用宏块分段。 此外，对于每个可用宏块分割，定义至少一个可用的预测方法，其中每个预测方法产生所述宏块内的块的预测运动系数，导致可用的宏块分割预测方法对的一定的有限数量。 对于宏块，选择可用的宏块分割预测方法对之一，然后将宏块分割为块，并且使用所选择的宏块分割预测方法对来生成所述宏块内的块的预测运动系数 。 还提出了相应的解码方法，编码器和解码器。

公开(公告)号：US06760481B1

公开(公告)日：2004-07-06

申请号：US09591482

申请日：2000-06-09

申请人： Fehmi Chebil ,  Kai Willner ,  Jani Lainema

发明人： Fehmi Chebil ,  Kai Willner ,  Jani Lainema

IPC分类号： G06K936

CPC分类号： H04N19/647

摘要： The invention relates generally to the processing of image data. Especially the invention applies to the coding and decoding of still images for compression and transfer in a mobile telecommunications system. The objects of the invention are fulfilled by providing an image processing procedure, which is based on wavelet transform (202), successive approximation quantization (204, 208) and guadtree coding (206). The quadtree coding preferably comprises the step of coding the significance with two symbols. The solution does not require large data processing or memory capacity. Still it offers a high image quality for a given bit rate compared to the prior art solutions. The solution according to the invention also satisfies the requirements of progressivity in quality and resolution.

摘要翻译： 本发明一般涉及图像数据的处理。 特别地，本发明适用于移动电信系统中用于压缩和传送的静止图像的编码和解码。 通过提供基于小波变换（202），逐次逼近量化（204,208）和加密编码（206）的图像处理过程来实现本发明的目的。 四叉树编码优选地包括用两个符号对重要性进行编码的步骤。 该解决方案不需要大量数据处理或内存容量。 与现有技术的解决方案相比，仍然可以提供给定比特率的高图像质量。 根据本发明的解决方案还满足了质量和分辨率的渐进性要求。