A METHOD TO ENCODE VIDEO WITH CLOSE MULTIPLE SCENE CHANGES
    1.
    发明申请
    A METHOD TO ENCODE VIDEO WITH CLOSE MULTIPLE SCENE CHANGES 审中-公开
    一种通过关闭多场景变化来编码视频的方法

    公开(公告)号:WO2017105391A1

    公开(公告)日:2017-06-22

    申请号:PCT/US2015/065568

    申请日:2015-12-14

    Abstract: A video encoding method is provided when three scenes are separated by two closely spaced scene changes. For scene changes spaced greater than a threshold, scene changes are programmed with I frames in a normal fashion. If less than the threshold, the method encodes depending on complexity of the first, second and third scene to determine how to encode the scene changes. To compare complexities, the process begins by using X 1 , X 2 , and X 3 to note respectively the complexities of the first, the second and the third scenes. If the absolute difference of X 1 and X 2 is higher than a first threshold and the absolute difference of X 2 and X 3 is higher than a second threshold, the first scene change is more significant than the second scene change, so in that case the process encodes the first scene change as an I-frame and picks a quantization parameter (QP) based on the complexity blended from the complexity of scene 2 (X 2 ) and scene 3 (X 3 ).

    Abstract translation: 当三个场景由两个紧密间隔的场景变化分开时,提供视频编码方法。 对于间隔大于阈值的场景变化,以正常方式用I帧编程场景变化。 如果小于阈值,则该方法根据第一,第二和第三场景的复杂度进行编码,以确定如何编码场景变化。 为了比较复杂性,该过程首先使用X 1 ,X 2 和X 3 分别记录第一个,第二个 和第三个场景。 如果X 1和X 2的绝对差高于第一阈值并且X 2和X 3的绝对差 <第二场景变化比第二场景变化更重要,所以在这种情况下,该过程将第一场景变化编码为I帧并且基于第二场景变化选择量化参数(QP) 从场景2(X 2 )和场景3(X 3 )的复杂性融合了复杂性。

    SYSTEMS AND METHODS FOR THE REUSE OF ENCODING INFORMATION IN ENCODING ALTERNATIVE STREAMS OF VIDEO DATA
    3.
    发明申请
    SYSTEMS AND METHODS FOR THE REUSE OF ENCODING INFORMATION IN ENCODING ALTERNATIVE STREAMS OF VIDEO DATA 审中-公开
    编码视频数据替代流程中编码信息的系统和方法

    公开(公告)号:WO2013181013A1

    公开(公告)日:2013-12-05

    申请号:PCT/US2013/041874

    申请日:2013-05-20

    Applicant: DIVX, LLC

    Abstract: Systems and methods for reusing encoding information in the encoding of alternative streams of video data in accordance with embodiments of the invention are disclosed. In one embodiment of the invention, encoding multimedia content for use in adaptive streaming systems, includes selecting a first encoding level from a plurality of encoding levels using a media server, determining encoding information for a first stream of video data using the first encoding level and the media server, encoding the first stream of video data using the media server, where the first stream of video data includes a first resolution and a first bitrate, selecting a second encoding level from the plurality of encoding levels using the media server, and encoding a second stream of video data using the encoding information and the media server, where the second stream of video data includes a second resolution and a second bitrate.

    Abstract translation: 公开了根据本发明的实施例的用于在视频数据的替代流的编码中重用编码信息的系统和方法。 在本发明的一个实施例中,编码用于自适应流系统的多媒体内容包括使用媒体服务器从多个编码级别中选择第一编码级别,使用第一编码级确定视频数据的第一流的编码信息;以及 所述媒体服务器使用所述媒体服务器编码所述第一视频数据流,其中所述第一视频数据流包括第一分辨率和第一比特率,使用所述媒体服务器从所述多个编码级别中选择第二编码级别,以及编码 使用所述编码信息和所述媒体服务器的第二视频数据流,其中所述第二视频数据流包括第二分辨率和第二比特率。

    MOTION COMPENSATION AND MOTION ESTIMATION LEVERAGING A CONTINUOUS COORDINATE SYSTEM
    4.
    发明申请
    MOTION COMPENSATION AND MOTION ESTIMATION LEVERAGING A CONTINUOUS COORDINATE SYSTEM 审中-公开
    运动补偿和运动估计采用连续坐标系统

    公开(公告)号:WO2013171184A1

    公开(公告)日:2013-11-21

    申请号:PCT/EP2013/059886

    申请日:2013-05-14

    Abstract: Computer processor hardware receives settings information for a first image. The first image includes a set of multiple display elements. The computer processor hardware receives motion compensation information for a given display element in a second image to be created based at least in part on the first image. The motion compensation information indicates a coordinate location within a particular display element in the first image to which the given display element pertains. The computer processor hardware utilizes the coordinate location as a basis from which to select a grouping of multiple display elements in the first image. The computer processor hardware then generates a setting for the given display element in the second image based on settings of the multiple display elements in the grouping.

    Abstract translation: 计算机处理器硬件接收第一个图像的设置信息。 第一个图像包括一组多个显示元素。 计算机处理器硬件至少部分地基于第一图像,在要创建的第二图像中接收给定显示元素的运动补偿信息。 运动补偿信息指示给定显示元件所属的第一图像内的特定显示元素内的坐标位置。 计算机处理器硬件利用坐标位置作为选择第一图像中的多个显示元素的分组的基础。 计算机处理器硬件然后基于分组中的多个显示元素的设置生成第二图像中的给定显示元素的设置。

    SCENE CHANGE DETECTION
    6.
    发明申请
    SCENE CHANGE DETECTION 审中-公开
    场景变化检测

    公开(公告)号:WO2011028666A1

    公开(公告)日:2011-03-10

    申请号:PCT/US2010/047178

    申请日:2010-08-30

    Inventor: LEE, Hung-Ju

    CPC classification number: H04N19/107 H04N19/142 H04N19/179 H04N19/87

    Abstract: Scene change detection in encoding digital pictures is disclosed. A statistical quantity µ M is calculated for a given section in a current picture. A window of one or more sections is defined around a co-located section in a previous picture. A statistical sum E is calculated over the sections in the window. A difference between the statistical sum E and the statistical quantity µ M is calculated. The difference between E and µ M is used to determine whether the given section is a scene-change section. Whether the current picture is a scene-change picture may be determined from the number of scene change sections. Information indicating whether or not the current picture is a scene-change picture may be stored or transferred.

    Abstract translation: 公开了编码数字图像中的场景变化检测。 对当前图片中的给定部分计算统计量μM。 一个或多个部分的窗口围绕前一张照片中的共同定位部分定义。 在窗口中的部分计算统计总和E. 计算统计总和E与统计量μM之间的差异。 E和μM之间的差异用于确定给定的部分是否是场景变化部分。 可以根据场景变化部分的数量确定当前画面是场景变化画面。 可以存储或传送表示当前画面是场景变化画面的信息。

    ERKENNUNG EINER ÄNDERUNG ZWISCHEN BILDERN ODER IN EINER SEQUENZ VON BILDERN
    7.
    发明申请
    ERKENNUNG EINER ÄNDERUNG ZWISCHEN BILDERN ODER IN EINER SEQUENZ VON BILDERN 审中-公开
    检测之间的图像或在图像序列的变化

    公开(公告)号:WO2010119060A1

    公开(公告)日:2010-10-21

    申请号:PCT/EP2010/054885

    申请日:2010-04-14

    Abstract: Eine Erkennung einer Änderung zwischen Bildern wird effektiver durchgeführt, indem zur Erkennung ein Änderungsmaß verwendet wird, das von einer Länge der Code-Blöcke abhängt, zu denen die Bilder individuell entropiecodiert sind, und die unterschiedlichen Abschnitten des jeweiligen Bildes zugeordnet sind, da die Länge dieser Code-Blöcke auch ohne Decodierung zur Verfügung steht. Hierdurch wird genutzt, dass die Länge bzw. die Menge der Daten eines Code-Blocks direkt größtenteils abhängig von der Entropie und damit von der Komplexität des zugeordneten Bildabschnitts ist, und dass sich Änderungen zwischen Bildern mit hoher Wahrscheinlichkeit auch in einer Änderung der Komplexität niederschlagen.

    Abstract translation: 帧由变化量被有效地进行之间的变化的检测被用于检测时,其依赖于在其上的图像被单独地熵编码的码块的长度,并且每个图像的不同部分分配,因为这个长度 的码块也可用而不解码。 以这种方式使用的长度,或直接很大程度上依赖于熵,因此复杂性相关的图像部分的码块的数据量,并且以高概率的图像之间的变化反映在复杂的变化。

    SCENE CUT DETECTION FOR VIDEO STREAM COMPRESSION
    9.
    发明申请
    SCENE CUT DETECTION FOR VIDEO STREAM COMPRESSION 审中-公开
    用于视频流压缩的场景切割检测

    公开(公告)号:WO2009016159A1

    公开(公告)日:2009-02-05

    申请号:PCT/EP2008/059891

    申请日:2008-07-28

    Abstract: A method and apparatus for detecting (51) in a video stream a scene cut (11, 12) between a current field of the video stream and an immediately preceding field includes determining (61) differences for a first plurality of image parameters between values of the image parameters for a current field and for one or more immediately preceding fields. A flag value is set (62) for each parameter indicating whether a possible scene break exists between the current field and the immediately preceding field dependent on the respective differences. The flag values for each parameter are combined (63) to form a combined parameter and a scene break trigger signal generated (64) indicating a scene break between the current field and the immediately preceding field if the combined parameter exceeds a predetermined trigger threshold. A change of criticality is determined (52) at a forthcoming scene cut. A quantisation parameter is adjusted (53) dependent on the criticality change to avoid overflowing a buffer on encoding of a field following the scene cut as an intra-coded field. A field following the scene cut is encoded (54) as an intra-coded field having a quantisation parameter dependent on the criticality change; such that encoding of forward or backward coded fields prior to or following the scene change is based only on fields preceding or following the scene change, respectively.

    Abstract translation: 一种用于在视频流中检测(51)在视频流的当前场和紧邻的前一场之间的场景切割(11,12)的方法和装置包括:确定(61)第一多个图像参数在 用于当前字段和一个或多个紧邻的字段的图像参数。 对于每个参数设置标志值(62),该参数指示当前字段和紧接在前一个字段之间是否存在可能的场景中断,这取决于各自的差异。 如果组合参数超过预定的触发阈值,则组合每个参数的标志值(63)以形成组合参数和生成的场景中断触发信号(64),指示当前字段与紧接在前的字段之间的场景中断。 在即将到来的场景切割中确定关键性的变化(52)。 调整量化参数(53),取决于临界变化,以避免在作为帧内编码场的场景切割后的场编码时溢出缓冲区。 场景切割后的场被编码(54)作为具有取决于临界变化的量化参数的帧内编码场; 使得在场景改变之前或之后的前向或后向编码场的编码分别仅基于场景改变之前或之后的场。

    METHOD AND APPARATUS FOR ADAPTING A DEFAULT ENCODING OF A DIGITAL VIDEO SIGNAL DURING A SCENE CHANGE PERIOD
    10.
    发明申请
    METHOD AND APPARATUS FOR ADAPTING A DEFAULT ENCODING OF A DIGITAL VIDEO SIGNAL DURING A SCENE CHANGE PERIOD 审中-公开
    在场景变化期间适应数字视频信号的默认编码的方法和装置

    公开(公告)号:WO2008019525A1

    公开(公告)日:2008-02-21

    申请号:PCT/CN2006/001700

    申请日:2006-07-17

    Abstract: The frame (n) following a scene cut (SCC) is usually coded as an I picture. In CBR encoding, the encoder will try to keep the bit rate (R) constant, which will often cause serious picture quality degradation at scene changes. In VBR encoding, more bits will be allocated to the first frame (n) of the new scene and the bit rate will increase significantly for a short time. Therefore subsequent frames must be coded in ^skipped' mode, which will often cause jerk artifacts. According to the invention, in each frame belonging to a scene change period, areas are determined that have different human attention levels. In the frames (n-1, n-2, n-3) located prior to the first new scene frame, to the areas having a lower attention level less bits are assigned than in the default encoding, and in the frames (n, n+1, n+2) located at and after the scene cut the thus saved bits are additionally assigned to the areas having a higher attention level.

    Abstract translation: 场景切割(SCC)之后的帧(n)通常被编码为I图像。 在CBR编码中,编码器将尝试保持比特率(R)恒定,这通常会导致场景变化严重的图像质量下降。 在VBR编码中,将更多的比特分配给新场景的第一帧(n),并且比特率将在短时间内显着增加。 因此,后续帧必须以^ skipped模式进行编码,这通常会引起抖动伪影。 根据本发明,在属于场景变化期间的每个帧中,确定具有不同人的注意力水平的区域。 在位于第一新场景帧之前的帧(n-1,n-2,n-3)中,对于具有较低注意力级别的区域,比在默认编码中分配较少的位,并且在帧(n, n + 1,n + 2)被分配给具有较高关注度的区域。

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