公开(公告)号：US20120128074A1

公开(公告)日：2012-05-24

申请号：US13058972

申请日：2008-08-12

申请人： Cixun Zhang ,  Kemal Ugur ,  Jani Lainema

发明人： Cixun Zhang ,  Kemal Ugur ,  Jani Lainema

IPC分类号： H04N7/26 ,  H04N7/30

CPC分类号： H04N19/19 ,  H04N19/122 ,  H04N19/14 ,  H04N19/147 ,  H04N19/176 ,  H04N19/51 ,  H04N19/60

摘要： Transform coding is not restricted inside normal block boundary but is adjusted to the characteristics of the prediction error. Thereby it is possible to achieve a coding efficiency improvement by selecting and coding the best portion of the prediction error in terms of rate distortion tradeoff.

摘要翻译： 变换编码在正常块边界内部不受限制，但根据预测误差的特性进行调整。 因此，通过在速率失真折衷方面选择和编码预测误差的最佳部分，可以实现编码效率的提高。

公开(公告)号：US20100296587A1

公开(公告)日：2010-11-25

申请号：US12681779

申请日：2008-10-02

申请人： Dmytro Rusanovskyy ,  Kemal Ugur ,  Jani Lainema

发明人： Dmytro Rusanovskyy ,  Kemal Ugur ,  Jani Lainema

IPC分类号： H04N7/26

CPC分类号： H04N19/523 ,  H04N19/117 ,  H04N19/182 ,  H04N19/46 ,  H04N19/61 ,  H04N19/82

摘要： 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.

摘要翻译： 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：US20080089412A1

公开(公告)日：2008-04-17

申请号：US11872650

申请日：2007-10-15

申请人： Kemal Ugur ,  Jani Lainema ,  Miska Hannuksela

发明人： Kemal Ugur ,  Jani Lainema ,  Miska Hannuksela

IPC分类号： H04N11/02

CPC分类号： 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

摘要： 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.

摘要翻译： 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：US08077991B2

公开(公告)日：2011-12-13

申请号：US12101019

申请日：2008-04-10

申请人： Jani Lainema

发明人： Jani Lainema

IPC分类号： G06K9/46

CPC分类号： H04N19/85 ,  H04N19/122 ,  H04N19/61 ,  H04N19/80

摘要： A system and method for improving prediction error coding performance of various video compression algorithms. Various embodiments combine the energy compaction features of transform coding with localization properties of spatial coding. In various embodiments, the effects of pixel “outliers” are removed from the transform and are coded separately as a spatially coded pixel prediction, thereby improving the coding gain of the transform.

摘要翻译： 一种用于改进各种视频压缩算法的预测误差编码性能的系统和方法。 各种实施例将变换编码的能量压缩特征与空间编码的定位特性组合。 在各种实施例中，从变换中去除像素“异常值”的影响，并且作为空间编码像素预测分开编码，从而提高变换的编码增益。

公开(公告)号：US07532808B2

公开(公告)日：2009-05-12

申请号：US10390549

申请日：2003-03-14

申请人： Jani Lainema

发明人： Jani Lainema

IPC分类号： H04N5/91

CPC分类号： H04N19/527 ,  H04N19/109 ,  H04N19/132 ,  H04N19/139 ,  H04N19/176 ,  H04N19/463 ,  H04N19/52 ,  H04N19/61

摘要： A method of motion-compensated video encoding that enables a video sequence with a global motion component to be encoded in an efficient manner. A video encoder is arranged to assign macroblocks to be coded to specific coding modes including a skip mode, which is used to indicate one of two possible types of macroblock motion: a) zero motion, or b) global or regional motion. As each macroblock is encoded, a previously encoded region surrounding the macroblock is examined and the characteristics of motion in that region determined. With the skip mode, the macroblock to be coded and a motion vector describing the global motion or regional motion is associated with the macroblock if the motion in the region is characteristic of global motion or regional motion. If the region exhibits an insignificant level of motion, a zero valued motion vector is associated with the macroblock.

摘要翻译： 一种运动补偿视频编码的方法，其使得能够以有效的方式编码具有全局运动分量的视频序列。 视频编码器被布置为将要编码的宏块分配给包括跳过模式的特定编码模式，所述跳过模式用于指示两种可能类型的宏块运动之一：a）零运动，或b）全局或区域运动。 当每个宏块被编码时，检查围绕宏块的先前编码区域，并确定该区域中的运动特性。 使用跳过模式，如果区域中的运动是全局运动或区域运动的特征，则要被编码的宏块和描述全局运动或区域运动的运动矢量与宏块相关联。 如果该区域表现出微不足道的运动水平，则零值运动矢量与宏块相关联。

公开(公告)号：US07349473B2

公开(公告)日：2008-03-25

申请号：US10616894

申请日：2003-07-09

申请人： Antti Hallapuro ,  Jani Lainema ,  Martz Karczewicz

发明人： Antti Hallapuro ,  Jani Lainema ,  Martz Karczewicz

IPC分类号： H04B1/66

CPC分类号： H04N19/577 ,  H04N19/159 ,  H04N19/176 ,  H04N19/523 ,  H04N19/573 ,  H04N19/587 ,  H04N19/80

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20060015919A1

公开(公告)日：2006-01-19

申请号：US10890885

申请日：2004-07-13

申请人： Henrik Karppinen ,  Jani Lainema

发明人： Henrik Karppinen ,  Jani Lainema

IPC分类号： H04N7/173 ,  H04N7/16

CPC分类号： H04N21/234363 ,  H04N13/156 ,  H04N13/194 ,  H04N13/305 ,  H04N13/31 ,  H04N19/597

摘要： A device, system and method for coding and transferring video information. Embodiments of the present invention may be used in three-dimensional video applications. According to embodiments of the present invention, video streams may be obtained and sub-sampled. The sub-sampled video streams may be combined. The sub-sampled, combined video stream may then be transferred to a display system to form a three-dimensional image.

摘要翻译： 用于编码和传送视频信息的设备，系统和方法。 本发明的实施例可以用于三维视频应用中。 根据本发明的实施例，可以获得视频流并进行子采样。 子采样视频流可以组合。 然后可以将子采样的组合视频流传送到显示系统以形成三维图像。

公开(公告)号：US06782053B1

公开(公告)日：2004-08-24

申请号：US09637773

申请日：2000-08-11

申请人： Jani Lainema

发明人： Jani Lainema

IPC分类号： H04N700

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

摘要： A method of coding video frames in a telecommunication system, comprising: forming a video frame of consecutive stationary frames, storing the frame reconstruction data of at least one frame as a reference frame and the motion data of earlier coded neighbouring blocks, defining by means of the motion data of one or more earlier coded neighbouring blocks the motion data of the block to be coded, which neighbouring block is formed by means of the stored reference frame, defining the frame reconstruction data of the frame to be coded, selecting for use the frame reconstruction data and motion data representing the block to be coded, which provide a pre-defined coding efficiency with a predefined picture quality.

公开(公告)号：US08630340B2

公开(公告)日：2014-01-14

申请号：US10762736

申请日：2004-01-21

申请人： Jani Lainema ,  Marta Karczewicz

发明人： Jani Lainema ,  Marta Karczewicz

IPC分类号： H04N7/12

CPC分类号： H04N19/198 ,  H04N19/105 ,  H04N19/126 ,  H04N19/154 ,  H04N19/172 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/51 ,  H04N19/517 ,  H04N19/52 ,  H04N19/527 ,  H04N19/537 ,  H04N19/61

摘要： A motion compensated video coding method which can be applied especially in transfer of video streams using low transmission bit rate is presented. In the motion compensated coding method, the motion of picture elements between a piece of reference video information and a piece of current video information is estimated and then modeled using certain basis function and coefficients. The coefficients are quantized, and the quantizer is selected according to a certain selection criterion, for example, based on a target image quality or on a target transmission bit rate. Preferably the selection criterion is such that it automatically adjust the accuracy with which the motion of picture elements is represented to be related to the accuracy with which the prediction error information is represented. A decoding method, an encoder and a corresponding decoder are also described.

摘要翻译： 提出了一种运动补偿视频编码方法，其特别适用于使用低传输比特率的视频流的传输。 在运动补偿编码方法中，估计一条参考视频信息和一条当前视频信息之间的图像元素的运动，然后使用某些基函数和系数进行建模。 量化系数，并且根据某一选择标准（例如，基于目标图像质量或目标传输比特率）来选择量化器。 优选地，选择标准使得其自动调整图像元素的运动被表示为与表示预测误差信息的准确度相关的精度。 还描述了解码方法，编码器和对应的解码器。

公开(公告)号：US20080240242A1

公开(公告)日：2008-10-02

申请号：US11728952

申请日：2007-03-27

申请人： Jani Lainema

发明人： Jani Lainema

IPC分类号： H04N11/04

CPC分类号： H04N19/436 ,  H04N19/46 ,  H04N19/52

摘要： A video coding system is capable of encoding and/or decoding a video frame based on at least two different types of motion vector predictions. In one type, the motion vector predictor of a current block in the video frame is calculated using only the motion vector of a neighboring block which is directly above the current block. In another type, the motion vector predictor is calculated using the motion vector of a neighboring block which is located on the left side of the current block. In the former type, adjacent blocks located in the same row can be decoded independently of each other. In the latter type, adjacent blocks located in the same column can be decoded independently. The system may also be capable of conventional coding. An indication is used for indicating to the decoder side which type of motion vector predictor is used in the encoding.

摘要翻译： 视频编码系统能够基于至少两种不同类型的运动矢量预测对视频帧进行编码和/或解码。 在一种类型中，仅使用直接在当前块上方的相邻块的运动矢量来计算视频帧中当前块的运动矢量预测器。 在另一种类型中，使用位于当前块的左侧的相邻块的运动矢量来计算运动矢量预测器。 在前一种类型中，可以独立于彼此解码位于同一行中的相邻块。 在后一种类型中，可以独立地解码位于同一列中的相邻块。 该系统也可以是常规编码。 指示用于向解码器侧指示在编码中使用哪种类型的运动矢量预测器。