公开(公告)号：US09679064B2

公开(公告)日：2017-06-13

申请号：US14123833

申请日：2011-06-30

申请人： Wenwei Xue ,  Zhanjiang Song ,  Ling Feng ,  Jianwen Chen

发明人： Wenwei Xue ,  Zhanjiang Song ,  Ling Feng ,  Jianwen Chen

IPC分类号： G06F17/30

CPC分类号： G06F17/30867 ,  G06F17/3053 ,  G06F17/30648 ,  G06F17/30651

摘要： An approach is provided for providing user-corrected search results. The explanation platform processes and/or facilitates a processing of one or more search results to calculate a ranking of the one or more search results. Next, the explanation platform determines one or more parameters related to calculating the ranking, one or more values of the one or more parameters, or a combination thereof. Then, the explanation platform causes, at least in part, a presentation of one or more representations of at least one of the one or more parameters as one or more explanations for the ranking.

公开(公告)号：US20140095496A1

公开(公告)日：2014-04-03

申请号：US14123833

申请日：2011-06-30

申请人： Wenwei Xue ,  Zhanjiang Song ,  Ling Feng ,  Jianwen Chen

发明人： Wenwei Xue ,  Zhanjiang Song ,  Ling Feng ,  Jianwen Chen

IPC分类号： G06F17/30

CPC分类号： G06F17/30867 ,  G06F17/3053 ,  G06F17/30648 ,  G06F17/30651

摘要： An approach is provided for providing user-corrected search results. The explanation platform processes and/or facilitates a processing of one or more search results to calculate a ranking of the one or more search results. Next, the explanation platform determines one or more parameters related to calculating the ranking, one or more values of the one or more parameters, or a combination thereof. Then, the explanation platform causes, at least in part, a presentation of one or more representations of at least one of the one or more parameters as one or more explanations for the ranking.

摘要翻译： 提供了一种用于提供用户校正的搜索结果的方法。 解释平台处理和/或促进一个或多个搜索结果的处理以计算一个或多个搜索结果的排名。 接下来，解释平台确定与计算排序，一个或多个参数的一个或多个值或其组合相关的一个或多个参数。 然后，解释平台至少部分地使一个或多个参数中的至少一个的一个或多个表示的呈现作为排序的一个或多个解释。

公开(公告)号：US08625917B2

公开(公告)日：2014-01-07

申请号：US13418063

申请日：2012-03-12

申请人： Jianhua Zheng ,  Yun He ,  Jianwen Chen

发明人： Jianhua Zheng ,  Yun He ,  Jianwen Chen

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： H04N19/124 ,  H04N19/107 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/61

摘要： A method and apparatus for realizing adaptive quantization in the process of image/video coding, which includes the following steps: acquiring the parameter information of the neighbor blocks of the current block; determining the quantization mode of the current block according to the parameter information of the neighbor blocks; and performing quantization processing on transform coefficients of the current block by using the determined quantization mode. Wherein, block coding type and motion vector of the neighbor blocks are used as the parameter information for determining the quantization mode of the current block. An apparatus for adaptive quantization in process of image/video coding is provided. The invention can use different quantization mode for adaptive quantization in different image content of an image sequence, thereby improving the subjective quality of the compressed images at the same bit rate.

摘要翻译： 一种在图像/视频编码过程中实现自适应量化的方法和装置，包括以下步骤：获取当前块的相邻块的参数信息; 根据相邻块的参数信息确定当前块的量化模式; 以及通过使用所确定的量化模式对当前块的变换系数进行量化处理。 其中，使用相邻块的块编码类型和运动矢量作为用于确定当前块的量化模式的参数信息。 提供了一种用于图像/视频编码过程中的自适应量化的装置。 本发明可以在图像序列的不同图像内容中使用不同的量化模式进行自适应量化，从而以相同的比特率提高压缩图像的主观质量。

公开(公告)号：US09258568B2

公开(公告)日：2016-02-09

申请号：US12210890

申请日：2008-09-15

申请人： Jianhua Zheng ,  Jianwen Chen ,  Yun He ,  Xinjian Meng

发明人： Jianhua Zheng ,  Jianwen Chen ,  Yun He ,  Xinjian Meng

IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70 ,  H04N19/46 ,  H04N19/61 ,  H04N19/126 ,  H04N19/154 ,  H04N19/18 ,  H04N19/177

CPC分类号： H04N19/174 ,  H04N19/126 ,  H04N19/154 ,  H04N19/176 ,  H04N19/177 ,  H04N19/18 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

摘要： A method and apparatus is provided for implementing quantization in encoding/decoding. Firstly, the quantization on the picture transformed coefficient matrix is performed using a quantization parameter model, that is, the coefficient matrix is modeled as a parameter model represented by only several parameters, in which the parameter model includes two sorts of parameters, frequency band distribution parameters and frequency band weighting parameters. Thus, a quantization matrix conforming to the human vision system can be obtained by controlling the model parameters and the subjective quality of the encoded picture can be easily controlled. Secondly, the method does not need to store or transfer the quantization matrix in the bitstream which help to improve the encoding efficiency. Finally, the quantization on picture transformed coefficients using the method is well adapted to the content information of the picture to be encoded. Therefore, the present invention can improve the subjective quality of the encoded picture.

摘要翻译： 提供了一种用于在编码/解码中实现量化的方法和装置。 首先，使用量化参数模型来执行对图像变换系数矩阵的量化，即，将系数矩阵建模为仅由几个参数表示的参数模型，其中参数模型包括两种参数，频带分布 参数和频带加权参数。 因此，可以通过控制模型参数来获得符合人类视觉系统的量化矩阵，并且可以容易地控制编码图像的主观质量。 其次，该方法不需要存储或传送比特流中的量化矩阵，这有助于提高编码效率。 最后，使用该方法的图像变换系数的量化很好地适应于要编码的图像的内容信息。 因此，本发明可以提高编码图像的主观质量。

公开(公告)号：US08160374B2

公开(公告)日：2012-04-17

申请号：US12210939

申请日：2008-09-15

申请人： Jianhua Zheng ,  Yun He ,  Jianwen Chen

发明人： Jianhua Zheng ,  Yun He ,  Jianwen Chen

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： H04N19/124 ,  H04N19/107 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/61

摘要： A method and apparatus for realizing adaptive quantization in the process of image/video coding, which includes the following steps: acquiring the parameter information of the neighbor blocks of the current block; determining the quantization mode of the current block according to the parameter information of the neighbor blocks; and performing quantization processing on transform coefficients of the current block by using the determined quantization mode. Wherein, block coding type and motion vector of the neighbor blocks are used as the parameter information for determining the quantization mode of the current block. An apparatus for adaptive quantization in process of image/video coding is provided. The invention can use different quantization mode for adaptive quantization in different image content of an image sequence, thereby improving the subjective quality of the compressed images at the same bit rate.

摘要翻译： 一种在图像/视频编码过程中实现自适应量化的方法和装置，包括以下步骤：获取当前块的相邻块的参数信息; 根据相邻块的参数信息确定当前块的量化模式; 以及通过使用所确定的量化模式对当前块的变换系数进行量化处理。 其中，使用相邻块的块编码类型和运动矢量作为用于确定当前块的量化模式的参数信息。 提供了一种用于图像/视频编码过程中的自适应量化的装置。 本发明可以在图像序列的不同图像内容中使用不同的量化模式进行自适应量化，从而以相同的比特率提高压缩图像的主观质量。

公开(公告)号：US20060280428A1

公开(公告)日：2006-12-14

申请号：US11405687

申请日：2006-04-17

申请人： Yun He ,  Quqing Chen ,  Jianfeng Xu ,  Jianwen Chen ,  Wengfang Fu ,  Xiaozhong Xu ,  Haiwu Zhao ,  Yong Chen ,  Weijia Zhu ,  Li Song

发明人： Yun He ,  Quqing Chen ,  Jianfeng Xu ,  Jianwen Chen ,  Wengfang Fu ,  Xiaozhong Xu ,  Haiwu Zhao ,  Yong Chen ,  Weijia Zhu ,  Li Song

IPC分类号： H04N5/93 ,  G11B27/00

CPC分类号： H04N19/577 ,  H04N19/132 ,  H04N19/159 ,  H04N19/172 ,  H04N19/46 ,  H04N19/61 ,  H04N19/70

摘要： The invention relates to a video encoding and decoding technical field of the signal processing, especially relates to a method for video clip assisted by clip identifier. The method defines a clip identifier on the video encoding and decoding rule as an identifier used specially for video stream clip. If the encoded video bit stream is clipped, then said clip identifier is inserted to the bit stream or used to replace the original identifier which functions as a start flag. The clip of the video bit stream can be operated conveniently by the invention. The features of the invention are: the bits, which mark whether the clipped video bit stream may be decoded and displayed incorrectly or not, are not required to appear in the unclipped bit stream; if it clips at a certain point of the bit stream, then said identifier will appear at this point to indicate that a problem in which the picture can not be decoded normally due to the predictive reference data being clipped may appear.

摘要翻译： 本发明涉及信号处理的视频编码和解码技术领域，特别涉及一种通过剪辑标识符辅助的视频剪辑的方法。 该方法将视频编码和解码规则上的剪辑标识符定义为专门用于视频流剪辑的标识符。 如果编码的视频比特流被剪切，则所述剪辑标识符被插入到比特流中，或者用于替换用作开始标志的原始标识符。 视频比特流的剪辑可以通过本发明方便地操作。 本发明的特征是：不需要在未剪切比特流中出现标记剪辑的视频比特流是否可能被不正确地解码和显示的比特; 如果它在比特流的特定点剪辑，则所述标识符将在此出现，以指示由于预测参考数据被剪切而不能正常解码图像的问题。