公开(公告)号：US08116375B2

公开(公告)日：2012-02-14

申请号：US10584762

申请日：2004-07-19

申请人： Wen Gao ,  Xiangyang Ji ,  Siwei Ma ,  Debin Zhao ,  Yan Lu

发明人： Wen Gao ,  Xiangyang Ji ,  Siwei Ma ,  Debin Zhao ,  Yan Lu

IPC分类号： H04N7/12

CPC分类号： H04N19/577 ,  H04N19/51 ,  H04N19/513 ,  H04N19/61

摘要： A method for obtaining an image reference block in a code mode of fixed reference frame number includes the steps of: performing motion estimation for each block of a current B frame and obtaining a motion vector MV of a corresponding block of a backward reference frame; discriminating whether the motion vector is beyond a maximum forward reference frame which is possibly pointed by the B frame, if not, then calculating the forward and backward motion vectors in a normal way; if yes, then using the motion vector of the forward reference frame that the B frame can obtain in the same direction to replace the motion vector of the corresponding block in the backward reference, and calculating the forward and the backward motion vectors of the B frame; finally, two image blocks pointed by the final obtained forward and backward motion vectors as the image reference blocks corresponding to the macro block. The present invention solves the possibly appeared problem of un-matching motion vectors, and can guarantee the coding efficiency to the largest extent.

摘要翻译： 用于以固定参考帧号码的码模式获得图像参考块的方法包括以下步骤：对当前B帧的每个块执行运动估计，并获得后向参考帧的对应块的运动矢量MV; 鉴别运动矢量是否超出可能由B帧指向的最大前向参考帧，如果不是，则以正常方式计算前向和后向运动矢量; 如果是，则使用B帧可以在相同方向上获得的前向参考帧的运动矢量来替换后向参考中的相应块的运动矢量，并且计算B帧的前向和后向运动矢量 ; 最后，由最终获得的前向和后向运动矢量指向的两个图像块作为与宏块对应的图像参考块。 本发明解决了可能出现的不匹配运动矢量的问题，可以最大限度地保证编码效率。

公开(公告)号：US08005144B2

公开(公告)日：2011-08-23

申请号：US10571659

申请日：2004-07-02

申请人： Xiangyang Ji ,  Wen Gao ,  Debin Zhao ,  Yan Lu ,  Siwei Ma ,  Honggang Qi

发明人： Xiangyang Ji ,  Wen Gao ,  Debin Zhao ,  Yan Lu ,  Siwei Ma ,  Honggang Qi

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

CPC分类号： H04N19/577 ,  H04N19/513 ,  H04N19/58 ,  H04N19/61

摘要： The invention discloses a bi-directional prediction method for video coding/decoding. When bi-directional prediction coding at the coding end, firstly the given forward candidate motion vector of the current image block is obtained for every image block of the current B-frame; the backward candidate motion vector is obtained through calculation, and the candidate bi-directional prediction reference block is obtained through bi-directional prediction method; the match is computed within the given searching scope and/or the given matching threshold; finally the optimal matching block is selected to determine the final forward motion vector, and the backward motion vector and the block residual. The present invention achieves the object of bi-directional prediction by coding a single motion vector, furthermore, it will not enhance the complexity of searching for a matching block at the coding end, and may save amount of coding the motion vector and represent the motion of the objects in video more actually. The present invention realizes a new prediction coding type by combining the forward prediction coding with the backward.

摘要翻译： 本发明公开了一种用于视频编码/解码的双向预测方法。 在编码结束的双向预测编码时，首先为当前B帧的每个图像块获得当前图像块的给定正向候选运动矢量; 通过计算获得后向候选运动矢量，通过双向预测方法获得候选双向预测参考块; 在给定的搜索范围和/或给定的匹配阈值内计算匹配; 最后选择最优匹配块来确定最终的前向运动矢量，反向运动矢量和块残差。 本发明通过对单个运动矢量进行编码来实现双向预测的目的，此外，它不会增强在编码端搜索匹配块的复杂度，并且可以节省编码运动矢量的量并表示运动 视频中的对象更实际。 本发明通过将前向预测编码与后向组合来实现新的预测编码类型。

公开(公告)号：US20110023061A1

公开(公告)日：2011-01-27

申请号：US12893305

申请日：2010-09-29

申请人： Xiangyang JI ,  Yongxiong Liao ,  Wei Luo ,  Zengli Jia

发明人： Xiangyang JI ,  Yongxiong Liao ,  Wei Luo ,  Zengli Jia

IPC分类号： H04N7/173 ,  H04N5/445

CPC分类号： H04N7/165 ,  H04N21/23805 ,  H04N21/2385 ,  H04N21/47202

摘要： A resource scheduling apparatus, a resource scheduling method, a program requesting method, a program requesting system, and a Set Top Box (STB) are provided. The resource scheduling method includes: distributing bandwidth greater than an inherent code rate of a program respectively requested by a user to a Video On Demand (VOD) program of the user within available bandwidth of a frequency point according to a received VOD user request; and reducing the bandwidth distributed to at least one VOD program to which bandwidth has been distributed according to the received VOD user request for currently requesting the program when the available bandwidth of the frequency point is smaller than an inherent code rate of a currently requested program, so that the available bandwidth of the frequency point is greater than or equal to the inherent code rate of the currently requested program. Thus, a transmission speed of the program and a utilization ratio of the bandwidth are increased.

摘要翻译： 提供资源调度装置，资源调度方法，程序请求方法，程序请求系统和机顶盒（STB）。 所述资源调度方法包括：根据所接收的VOD用户请求，将频宽分配的带宽分配给用户分别由用户请求的节目的固有码率分配给频点的可用带宽内的用户的视频点播（VOD）节目; 并且当所述频点的可用带宽小于当前所请求节目的固有码率时，根据当前请求所述节目的所接收的VOD用户请求，减小分配给至少一个VOD节目的带宽， 使得频率点的可用带宽大于或等于当前请求的程序的固有码率。 因此，节目的传输速度和带宽的利用率增加。

公开(公告)号：US20110010741A1

公开(公告)日：2011-01-13

申请号：US12886197

申请日：2010-09-20

申请人： Yongxiong Liao ,  Xiangyang Ji ,  Wei Luo ,  Zengli Jia

发明人： Yongxiong Liao ,  Xiangyang Ji ,  Wei Luo ,  Zengli Jia

IPC分类号： H04N7/173 ,  H04N5/445

CPC分类号： H04N7/17318 ,  H04N21/47202 ,  H04N21/6587

摘要： A method for controlling an interactive video service is provided. The method includes the following steps: receiving a control request sent by a terminal device; obtaining an identifier of a Set Top Box (STB) device corresponding to the terminal device; and controlling a media stream of the STB device corresponding to the identifier of the STB device according to the control request. A system and a device for controlling an interactive video service are also provided. Thus, through the interaction between the terminal device and a Video On Demand (VOD) system, the program guide browsing and on-demand control for the interactive video service are realized for STB users. Therefore, without significantly modifying the broadcast and television network, the problem that some STB users cannot use an interactive video service currently is solved. In addition, the STB users can perform operations such as program guide browsing, on-demand initiating, and on-demand session control on handset devices, so that desirable service experience is achieved.

摘要翻译： 提供了一种用于控制交互式视频服务的方法。 该方法包括以下步骤：接收由终端设备发送的控制请求; 获得对应于终端设备的机顶盒（STB）设备的标识符; 以及根据控制请求来控制对应于STB设备的标识符的STB设备的媒体流。 还提供了一种用于控制交互式视频服务的系统和设备。 因此，通过终端设备与视频点播（VOD）系统之间的交互，为STB用户实现了交互式视频业务的节目指南浏览和点播控制。 因此，在不显着修改广播电视网络的情况下，解决了一些STB用户当前不能使用交互式视频业务的问题。 此外，STB用户可以在手机设备上执行诸如节目指南浏览，按需发起和按需会话控制的操作，从而实现期望的服务体验。

公开(公告)号：US20070217500A1

公开(公告)日：2007-09-20

申请号：US10584844

申请日：2004-07-08

申请人： Wen Gao ,  Junhao Zheng ,  Siwei Ma ,  Xiangyang Ji ,  Peng Zhang ,  Yan lu

发明人： Wen Gao ,  Junhao Zheng ,  Siwei Ma ,  Xiangyang Ji ,  Peng Zhang ,  Yan lu

IPC分类号： H04N7/32

CPC分类号： H04N19/132 ,  H04N19/176 ,  H04N19/51 ,  H04N19/61 ,  H04N19/70

摘要： The present invention provides an encoding method for skipped macroblocks in a video image comprising the steps of: adding one indication bit into a picture header for indicating a coding mode for skipped macroblocks in a current image; selecting the coding mode for a macroblock type in the current image according to the number of skipped macroblocks, if it is a run_length coding, then setting the indication bit of the picture header as a status indicating a run_length coding, and encoding the macroblock type in the image by the run_length coding mode; if it is a joint coding of the number of skipped macroblocks and the macroblock type, then setting the indication bit of the picture header as status indicating a joint coding and encoding the macroblock type in the image by the joint coding mode of the number of skipped macroblocks and the macroblock type; finally, encoding other data in the current macroblock and writing data into a code stream. The present invention selects the coding mode for skipped macroblocks in video image adaptively, which improves the image encoding efficiency, reduces the cost for transmission and storage, therefore it is a simple and practical technical solution. The present invention can be used validly in both frame encoding and field encoding.

摘要翻译： 本发明提供一种视频图像中的跳过宏块的编码方法，包括以下步骤：将一个指示位添加到用于指示当前图像中跳过的宏块的编码模式的图像头中; 根据跳过的宏块的数量，选择当前图像中的宏块类型的编码模式，如果是长度编码，则将图像头的指示位设置为指示运行长度编码的状态，并将宏块类型编码 图像由run_length编码模式; 如果是跳过的宏块的数量和宏块类型的联合编码，则通过跳过的数量的联合编码模式将图像头的指示位设置为指示联合编码并且将宏块类型编码在图像中的状态 宏块和宏块类型; 最后，编码当前宏块中的其他数据并将数据写入代码流。 本发明自适应地选择视频图像中的跳过宏块的编码模式，提高了图像编码效率，降低了传输和存储成本，因此是一种简单实用的技术方案。 本发明可以在帧编码和场编码两者中有效地使用。

公开(公告)号：US20070116123A1

公开(公告)日：2007-05-24

申请号：US10584762

申请日：2004-07-19

申请人： Wen Gao ,  Xiangyang Ji ,  Siwei Ma ,  Debin Zhao ,  Yan lu

发明人： Wen Gao ,  Xiangyang Ji ,  Siwei Ma ,  Debin Zhao ,  Yan lu

IPC分类号： H04N11/04 ,  H04N11/02

CPC分类号： H04N19/577 ,  H04N19/51 ,  H04N19/513 ,  H04N19/61

摘要： The present invention discloses a method for obtaining image reference block in a code mode of fixed reference frame number, comprising the steps of: performing motion estimation for each block of a current B frame and obtaining a motion vector MV of a corresponding block of a backward reference frame; discriminating whether the motion vector is beyond a maximum forward reference frame which is possibly pointed by the B frame, if not, then calculating the forward and backward motion vectors in a normal way; if yes, then using the motion vector of the forward reference frame that the B frame can obtain in the same direction to replace the motion vector of the corresponding block in the backward reference, and calculating the forward and the backward motion vectors of the B frame; finally, two image blocks pointed by the final obtained forward and backward motion vectors as the image reference blocks corresponding to the macro block. The present invention solves the possibly appeared problem of un-matching motion vectors, and can guarantee the coding efficiency to the largest extent.

摘要翻译： 本发明公开了一种用于以固定参考帧号码的码模式获取图像参考块的方法，包括以下步骤：对当前B帧的每个块执行运动估计，并获得后向对应块的运动矢量MV 参考范围; 鉴别运动矢量是否超出可能由B帧指向的最大前向参考帧，如果不是，则以正常方式计算前向和后向运动矢量; 如果是，则使用B帧可以在相同方向上获得的前向参考帧的运动矢量来替换后向参考中的相应块的运动矢量，并且计算B帧的前向和后向运动矢量 ; 最后，由最终获得的前向和后向运动矢量指向的两个图像块作为与宏块对应的图像参考块。 本发明解决了可能出现的不匹配运动矢量的问题，可以最大限度地保证编码效率。

公开(公告)号：US20060008003A1

公开(公告)日：2006-01-12

申请号：US11126650

申请日：2005-05-10

申请人： Xiangyang Ji ,  Jizheng Xu ,  Feng Wu

发明人： Xiangyang Ji ,  Jizheng Xu ,  Feng Wu

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

CPC分类号： H04N19/61 ,  H04N19/13 ,  H04N19/615 ,  H04N19/619 ,  H04N19/62 ,  H04N19/63

摘要： Techniques and tools are described for scalable video coding and decoding. For example, a 3D sub-band video encoder includes an embedded base layer codec as well as temporal sub-band transforms and spatial sub-band transforms. The placement of the base layer codec among the sub-band transforms and the role of the base layer codec in scalable video coding vary depending on implementation. In general, the base layer codec provides efficient compression at low bit rates and produces a base layer compressed video bit stream compatible with existing decoders. At the same time, the 3D sub-band video encoder provides spatial and temporal scalability options at higher bit rates, refining the base layer video. A corresponding 3D sub-band video decoder includes an embedded base layer decoder.

摘要翻译： 描述了可扩展视频编码和解码的技术和工具。 例如，3D子带视频编码器包括嵌入式基层编解码器以及时间子带变换和空间子带变换。 基带编解码器在子带变换中的布置以及基础层编解码器在可伸缩视频编码中的作用根据实现而有所不同。 通常，基层编解码器以低比特率提供有效的压缩，并产生与现有解码器兼容的基本层压缩视频比特流。 同时，3D子带视频编码器以更高的比特率提供空间和时间的可扩展性选项，从而改善基本层视频。 相应的3D子带视频解码器包括嵌入式基本层解码器。

公开(公告)号：US08832759B2

公开(公告)日：2014-09-09

申请号：US12893305

申请日：2010-09-29

申请人： Xiangyang Ji ,  Yongxiong Liao ,  Wei Luo ,  Zengli Jia

发明人： Xiangyang Ji ,  Yongxiong Liao ,  Wei Luo ,  Zengli Jia

IPC分类号： H04N7/173 ,  H04N21/472 ,  H04N21/238 ,  H04N7/16 ,  H04N21/2385

CPC分类号： H04N7/165 ,  H04N21/23805 ,  H04N21/2385 ,  H04N21/47202

摘要： A resource scheduling apparatus, a resource scheduling method, a program requesting method, a program requesting system, and a Set Top Box (STB) are provided. The resource scheduling method includes: distributing bandwidth greater than an inherent code rate of a program respectively requested by a user to a Video On Demand (VOD) program of the user within available bandwidth of a frequency point according to a received VOD user request; and reducing the bandwidth distributed to at least one VOD program to which bandwidth has been distributed according to the received VOD user request for currently requesting the program when the available bandwidth of the frequency point is smaller than an inherent code rate of a currently requested program, so that the available bandwidth of the frequency point is greater than or equal to the inherent code rate of the currently requested program. Thus, a transmission speed of the program and a utilization ratio of the bandwidth are increased.

摘要翻译： 提供资源调度装置，资源调度方法，程序请求方法，程序请求系统和机顶盒（STB）。 所述资源调度方法包括：根据所接收的VOD用户请求，将频宽分配的带宽分配给用户分别由用户请求的节目的固有码率分配给频点的可用带宽内的用户的视频点播（VOD）节目; 并且当所述频点的可用带宽小于当前所请求节目的固有码率时，根据当前请求所述节目的所接收的VOD用户请求，减小分配给至少一个VOD节目的带宽， 使得频率点的可用带宽大于或等于当前请求的程序的固有码率。 因此，节目的传输速度和带宽的利用率增加。

公开(公告)号：US08340177B2

公开(公告)日：2012-12-25

申请号：US11126650

申请日：2005-05-10

申请人： Xiangyang Ji ,  Jizheng Xu ,  Feng Wu

发明人： Xiangyang Ji ,  Jizheng Xu ,  Feng Wu

IPC分类号： H04N7/12 ,  H04N11/02

CPC分类号： H04N19/61 ,  H04N19/13 ,  H04N19/615 ,  H04N19/619 ,  H04N19/62 ,  H04N19/63

摘要： Techniques and tools are described for scalable video coding and decoding. For example, a 3D sub-band video encoder includes an embedded base layer codec as well as temporal sub-band transforms and spatial sub-band transforms. The placement of the base layer codec among the sub-band transforms and the role of the base layer codec in scalable video coding vary depending on implementation. In general, the base layer codec provides efficient compression at low bit rates and produces a base layer compressed video bit stream compatible with existing decoders. At the same time, the 3D sub-band video encoder provides spatial and temporal scalability options at higher bit rates, refining the base layer video. A corresponding 3D sub-band video decoder includes an embedded base layer decoder.

摘要翻译： 描述了可扩展视频编码和解码的技术和工具。 例如，3D子带视频编码器包括嵌入式基层编解码器以及时间子带变换和空间子带变换。 基带编解码器在子带变换中的布置以及基础层编解码器在可伸缩视频编码中的作用根据实现而有所不同。 通常，基层编解码器以低比特率提供有效的压缩，并产生与现有解码器兼容的基本层压缩视频比特流。 同时，3D子带视频编码器以更高的比特率提供空间和时间的可扩展性选项，从而改善基本层视频。 相应的3D子带视频解码器包括嵌入式基本层解码器。

公开(公告)号：US07974344B2

公开(公告)日：2011-07-05

申请号：US10584777

申请日：2004-07-08

申请人： Xiangyang Ji ,  Wen Gao ,  Siwei Ma ,  Debin Zhao ,  Yan Lu

发明人： Xiangyang Ji ,  Wen Gao ,  Siwei Ma ,  Debin Zhao ,  Yan Lu

IPC分类号： H04N7/12

CPC分类号： H04N19/577

摘要： A “rounding to zero” method can maintain the exact motion vector and can also be achieved by the method without division so as to improve the precision of calculating the motion vector, embody the motion of the object in video more factually, and obtain the more accurate motion vector prediction. Combining with the forward prediction coding and the backward prediction coding, the present invention realizes a new prediction coding mode, which can guarantee the high efficiency of coding in direct mode as well as is convenient for hardware realization, and gains the same effect as the conventional B frame coding.

摘要翻译： “舍入到零”方法可以保持精确的运动矢量，也可以通过不分割的方法来实现，以提高计算运动矢量的精度，更实际地体现视频中物体的运动，并获得更多 准确的运动矢量预测。 结合前向预测编码和后向预测编码，本发明实现了一种新的预测编码模式，可以保证直接模式下的编码效率高，便于硬件实现，并获得与常规编码相同的效果 B帧编码。