Method and apparatus for decoding hybrid intra-inter coded blocks
    111.
    发明授权
    Method and apparatus for decoding hybrid intra-inter coded blocks 有权
    混合帧内编码块的解码方法和装置

    公开(公告)号:US08085846B2

    公开(公告)日:2011-12-27

    申请号:US10569319

    申请日:2004-08-24

    IPC分类号: H04N7/12

    摘要: A hybrid intra-inter bi-predictive (or multi-predictive) coding mode allows both intraframe (intra) and interframe (inter) predictions to be combined together for hybrid-encoding a current macroblock or a subblock. Bi-prediction may be used also in I-pictures, combining two intra predictions that use two different intra prediction directions. A video encoder processes data representing a two-dimensional video image which has been produced by a conventional commercially available video camera. The video encoder is adapted to select, for coding a current macroblock, between an intra encoding mode, an P-frame inter encoding mode, a B-frame bi-predictive inter mode, and a hybrid intra-inter bi-predictive encoding mode. A video decoder receives and decodes a data stream that may contain a block/macroblock encoded in accordance with the hybrid intra-inter bi-predictive encoding mode.

    摘要翻译: 混合帧内双向预测(或多预测)编码模式允许将帧内(帧内)和帧间(帧间)预测组合在一起,以对当前宏块或子块进行混合编码。 双预测也可以用在I图像中,组合使用两个不同帧内预测方向的两个帧内预测。 视频编码器处理表示由传统市售摄像机产生的二维视频图像的数据。 视频编码器适于在帧内编码模式,P帧编码模式,B帧双预测帧间模式和混合帧内双向预测编码模式之间选择用于对当前宏块进行编码。 视频解码器接收并解码可以包含根据混合帧内双向预测编码模式编码的块/宏块的数据流。

    Method and apparatus for minimizing number of reference pictures used for inter-coding
    112.
    发明授权
    Method and apparatus for minimizing number of reference pictures used for inter-coding 有权
    用于最小化用于帧间编码的参考图像的数量的方法和装置

    公开(公告)号:US08073048B2

    公开(公告)日:2011-12-06

    申请号:US10569168

    申请日:2004-08-24

    IPC分类号: H04N7/12

    摘要: A method for minimizing and optimizing a list of active reference pictures to be used for (forward or backward) inter coding of a current picture, or of a pixel region (e.g., video object) within the current picture. Setting the number of active reference pictures in a list equal to one based upon one or more decisions related to the pixel data and movement between the current picture and one or more reference pictures. Otherwise, minimizing the number of active reference pictures in the list based upon one or more other decisions related to the pixel data and movement between the current picture and one or more reference pictures. Minimizing the number of active reference pictures in a second reference picture list based upon the utilization of reference pictures in the first reference picture list. A video encoder processes data representing a two-dimensional video image which has been produced by a conventional commercially available video camera. The video encoder is adapted to determine, select, and to minimize the number of active reference pictures to be used to inter code a current picture. The bit stream transmitted by the encoder can be decoded by decoders of the related art.

    摘要翻译: 一种用于最小化和优化用于当前图像或当前图像内的像素区域(例如,视频对象)的(前向或后向)编码的活动参考图像的列表的方法。 基于与像素数据相关的一个或多个决定以及当前图片与一个或多个参考图片之间的移动,将列表中的有效参考图片的数量设置为等于1。 否则,基于与像素数据相关的一个或多个其他决定以及当前图片与一个或多个参考图片之间的移动,使列表中的活动参考图片的数量最小化。 基于第一参考图片列表中的参考图片的利用,最小化第二参考图片列表中的活动参考图片的数量。 视频编码器处理表示由传统市售摄像机产生的二维视频图像的数据。 视频编码器适于确定,选择和最小化要用于对当前图像进行编码的活动参考图像的数量。 由编码器发送的比特流可以由相关技术的解码器解码。

    Complexity Allocation for Video and Image Coding Applications
    113.
    发明申请
    Complexity Allocation for Video and Image Coding Applications 有权
    视频和图像编码应用的复杂度分配

    公开(公告)号:US20110164677A1

    公开(公告)日:2011-07-07

    申请号:US13119492

    申请日:2009-09-24

    IPC分类号: H04N7/26

    摘要: Coding method complexity types are assigned to video for combinations of coding decision levels associated with a sequence of pictures, a group of pictures, a scene, a region of the scene or picture, a block or macroblock. Multiple coding units are encoded as a function of complexity and determined from the coding decision levels. A first coding decision level is associated with determining a first complexity and a first coding method type for the sequence of pictures. A second coding decision level is associated with determining a second complexity and a second coding method type for the pictures or scene. The picture or sequence includes the coding units. A third coding decision level is associated with determining a third complexity and a third coding method type for the coding units.

    摘要翻译: 编码方法复杂度类型被分配给与图像序列,图像组,场景,场景或图像的区域,块或宏块相关联的编码决定级别的组合的视频。 多个编码单元被编码为复杂度的函数并且从编码决定级别确定。 第一编码决定级别与确定图像序列的第一复杂度和第一编码方法类型相关联。 第二编码判定级与确定图像或场景的第二复杂度和第二编码方法类型相关联。 图像或序列包括编码单元。 第三编码判定级与确定编码单元的第三复杂度和第三编码方法类型相关联。

    Video Compression Under Multiple Distortion Constraints
    114.
    发明申请
    Video Compression Under Multiple Distortion Constraints 有权
    多重扭曲约束下的视频压缩

    公开(公告)号:US20110103473A1

    公开(公告)日:2011-05-05

    申请号:US12999419

    申请日:2009-06-18

    IPC分类号: H04N7/26 H04N7/50

    摘要: Video compression is performed under multiple distortion constraints. Video coding includes determining a first set of Lagrangian cost values for multiple coding modes using a first distortion metric, determining a second set of Lagrangian cost values for the multiple coding modes using a second distortion metric, and selecting one of the coding modes base first set of Lagrangian cost values and the second set of Lagrangian cost values to encode a pixel block using the selected coding mode. The distortion metrics can include information associated with video display characteristics such as screen display size, video processing performance, a distortion characteristic, a temporal characteristic, or a spatial characteristic. The distortion metrics can also include characteristics of multiple video displays, such as parameters for usage, importance, design, and the technology type of the video displays.

    摘要翻译: 在多个失真约束下进行视频压缩。 视频编码包括使用第一失真度量来确定用于多个编码模式的第一组拉格朗日代价值,使用第二失真度量来确定所述多个编码模式的第二拉格朗日代价集合,并且选择所述编码模式之一 的拉格朗日代价值和第二组拉格朗日代价值,以使用所选择的编码模式对像素块进行编码。 失真度量可以包括与诸如屏幕显示尺寸,视频处理性能,失真特性,时间特性或空间特性的视频显示特征相关联的信息。 失真度量还可以包括多个视频显示器的特征,例如使用参数,重要性,设计和视频显示器的技术类型。

    VIDEO CODING
    115.
    发明申请
    VIDEO CODING 有权
    视频编码

    公开(公告)号:US20090245373A1

    公开(公告)日:2009-10-01

    申请号:US12474821

    申请日:2009-05-29

    IPC分类号: H04N7/32

    摘要: Improved video coding is described to encode video data within a sequence of video frames. To this end, at least a portion of a reference frame is encoded to include motion information associated with the portion of the reference frame. At least a portion of a predictable frame that includes video data predictively correlated to said portion of said reference frame is defined based on the motion information. At least said portion of the predictable frame is encoded without including corresponding motion information and including mode identifying data. The mode identifying data indicate that the encoded portion of the predictable frame can be directly derived using at least the motion information associated with the portion of the reference frame.

    摘要翻译: 描述了改进的视频编码以对视频帧序列内的视频数据进行编码。 为此,参考帧的至少一部分被编码以包括与参考帧的该部分相关联的运动信息。 基于运动信息来定义包括与所述参考帧的所述部分预测相关的视频数据的可预测帧的至少一部分。 可预测帧的至少所述部分被编码而不包括对应的运动信息并且包括模式识别数据。 模式识别数据指示可以使用至少与参考帧的部分相关联的运动信息直接导出可预测帧的编码部分。

    Method and Apparatus for Motion Estimation Using Combined Reference Bi-Prediction
    116.
    发明申请
    Method and Apparatus for Motion Estimation Using Combined Reference Bi-Prediction 有权
    用于使用组合参考双预测的运动估计的方法和装置

    公开(公告)号:US20090067505A1

    公开(公告)日:2009-03-12

    申请号:US12223413

    申请日:2007-01-30

    IPC分类号: G06K9/36

    摘要: A method and apparatus are provided for motion estimation using combined reference bi-prediction. The apparatus includes an encoder (200) for encoding a multi-prediction picture from a combination of two or more reference pictures by respectively predicting a motion vector for a particular one of the two or more reference pictures in a motion estimation process while initializing motion vectors for remaining ones of the two or more reference pictures to a predefined value for use by the motion estimation process.

    摘要翻译: 提供了一种用于使用组合参考双预测的运动估计的方法和装置。 该装置包括:编码器(200),用于通过在运动估计过程中分别预测两个或更多个参考图像中的特定一个的运动矢量,同时初始化运动矢量,来对来自两个或更多个参考图片的组合的多预测图像进行编码 对于两个或更多个参考图像中的剩余的参考图像到由运动估计处理使用的预定值。

    Optimization techniques for data compression
    117.
    发明授权
    Optimization techniques for data compression 有权
    数据压缩优化技术

    公开(公告)号:US07280700B2

    公开(公告)日:2007-10-09

    申请号:US10462085

    申请日:2003-06-13

    IPC分类号: G06K9/46 H04B1/66

    摘要: Methods and apparatuses are provided relating to the encoding of data, such as, e.g., images, video, etc. For example, certain methods include processing at least a portion of data using a plurality of different quantization functions to produce a plurality of corresponding quantized portions of data, and selectively outputting one of the quantized portions of data based on at least one threshold value. The method may also include dividing initial data into a plurality of portions and classifying the portion of data based on at least one classification characteristic. Here, for example, there may be a threshold value that is associated with the classification characteristic. Additional syntax may be adopted to enable considerably higher compression efficiency by allowing several alternative motion prediction cases. A high efficiency time stamp independent Direct Mode is also provided which considers spatial motion vector prediction as well with stationary temporal predictors.

    摘要翻译: 提供了与诸如图像,视频等的数据的编码相关的方法和装置。例如,某些方法包括使用多个不同的量化函数来处理数据的至少一部分以产生多个对应的量化 数据的部分,并且基于至少一个阈值选择性地输出数据的量化部分之一。 该方法还可以包括将初始数据划分成多个部分,并且基于至少一个分类特征来对数据的部分进行分类。 这里,例如,可以存在与分类特性相关联的阈值。 可以采用额外的语法来通过允许多个替代的运动预测情况来实现相当高的压缩效率。 还提供了高效率时间戳独立直接模式,其考虑空间运动矢量预测以及静态时间预测器。

    Method and apparatus for minimizing number of reference pictures used for inter-coding
    120.
    发明申请
    Method and apparatus for minimizing number of reference pictures used for inter-coding 有权
    用于最小化用于帧间编码的参考图像的数量的方法和装置

    公开(公告)号:US20070019724A1

    公开(公告)日:2007-01-25

    申请号:US10569168

    申请日:2004-08-24

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

    摘要: A method for minimizing and optimizing a list of active reference pictures to be used for (forward or backward) inter coding of a current picture, or of a pixel region (e.g., video object) within the current picture. Setting the number of active reference pictures in a list equal to one based upon one or more decisions related to the pixel data and movement between the current picture and one or more reference pictures. Otherwise, minimizing the number of active reference pictures in the list based upon one or more other decisions related to the pixel data and movement between the current picture and one or more reference pictures. Minimizing the number of active reference pictures in a second reference picture list-based upon the utilization of reference pictures in the first reference picture list. A video encoder processes data representing a two-dimensional video image which has been produced by a conventional commercially available video camera. The video encoder is adapted to determine, select, and to minimize the number of active reference pictures to be used to inter code a current picture. The bit stream transmitted by the encoder can be decoded by decoders of the related art.

    摘要翻译: 一种用于最小化和优化用于当前图像或当前图像内的像素区域(例如,视频对象)的(前向或后向)编码的活动参考图像的列表的方法。 基于与像素数据相关的一个或多个决定以及当前图片与一个或多个参考图片之间的移动,将列表中的有效参考图片的数量设置为等于1。 否则,基于与像素数据相关的一个或多个其他决定以及当前图片与一个或多个参考图片之间的移动,使列表中的活动参考图片的数量最小化。 基于第一参考图片列表中的参考图片的利用,使第二参考图片列表中的活动参考图片的数量最小化。 视频编码器处理表示由传统市售摄像机产生的二维视频图像的数据。 视频编码器适于确定,选择和最小化要用于对当前图像进行编码的活动参考图像的数量。 由编码器发送的比特流可以由相关技术的解码器解码。