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1. 发明授权

US08842184B2 Method for determining a quality measure for a video image and apparatus for determining a quality measure for a video image 有权
标题翻译：用于确定视频图像的质量测量的方法和用于确定视频图像的质量测量的装置
公开(公告)号：US08842184B2
公开(公告)日：2014-09-23
申请号：US13320553
申请日：2010-11-18
申请人： De Bing Liu , Zhi Bo Chen , Xiao Dong Gu
发明人： De Bing Liu , Zhi Bo Chen , Xiao Dong Gu
IPC分类号： H04N17/00
CPC分类号： H04N17/004
摘要： Accurately estimating the image quality of video is still difficult, especially when there is no reference video available. A method for determining a quality measure for a video image comprises selecting a measuring point, such as a MB, determining a context area around the measuring point, calculating a variance of pixel values in the context area, calculating a variance of pixel values in the measuring point, calculating a relation between the two variances of pixel values, and averaging said relations for a plurality of measuring points, wherein a quality measure for a video image is obtained.
摘要翻译：准确估计视频的图像质量仍然很困难，特别是当没有可用的参考视频时。一种用于确定视频图像的质量测量的方法包括：选择测量点，诸如MB，确定测量点周围的上下文区域，计算上下文区域中的像素值的方差，计算像素值的方差测量点，计算像素值的两个方差之间的关系，以及平均用于多个测量点的所述关系，其中获得视频图像的质量测量。

2. 发明授权

US09497468B2 Blur measurement in a block-based compressed image 有权
标题翻译：基于块的压缩图像中的模糊测量
公开(公告)号：US09497468B2
公开(公告)日：2016-11-15
申请号：US13138600
申请日：2010-02-26
申请人： De Bing Liu , Zhi Bo Chen , Xiao Dong Gu , Feng Xu
发明人： De Bing Liu , Zhi Bo Chen , Xiao Dong Gu , Feng Xu
IPC分类号： H04N19/14 , G06T7/00 , H04N19/176 , H04N19/61 , H04N19/174 , H04N19/44 , H04N19/86
CPC分类号： H04N19/14 , G06T7/0002 , G06T2207/30168 , H04N19/174 , H04N19/176 , H04N19/44 , H04N19/61 , H04N19/86
摘要： Blur is one of the most important features related to video quality. Accurate estimating the blur level of a video is a great help to accurately evaluate the video quality. An improved method is provided for estimating the blur level of videos that are compressed by a block based codec, such as H.264/AVC, MPEG2, etc. According to the invention, local blur detection is based on macroblock (MB) edges, a content dependent weighting scheme is employed to decrease the influence from texture and when detecting local blur, the spreading of detection will stop at local minimum and maximum luminance positions.
摘要翻译：模糊是与视频质量相关的最重要的功能之一。准确估计视频的模糊级别对于准确评估视频质量是一个很大的帮助。提供了一种改进的方法来估计由诸如H.264 / AVC，MPEG2等的基于块的编解码器压缩的视频的模糊级别。根据本发明，局部模糊检测基于宏块（MB）边缘，采用内容相关加权方案来减小纹理的影响，并且当检测局部模糊时，检测的扩展将在局部最小和最大亮度位置停止。

3. 发明申请

US20130235214A1 METHOD AND APPARATUS FOR MEASURING QUALITY OF VIDEO BASED ON FRAME LOSS PATTERN 有权
标题翻译：用于测量基于帧丢失模式的视频质量的方法和装置
公开(公告)号：US20130235214A1
公开(公告)日：2013-09-12
申请号：US13989130
申请日：2010-11-30
申请人： Xiao Dong Gu , De Bing Liu , Zhi Bo Chen
发明人： Xiao Dong Gu , De Bing Liu , Zhi Bo Chen
IPC分类号： H04N17/00
CPC分类号： H04N17/00 , H04N17/004
摘要： A method and apparatus for measuring the quality of a video is provided. The method comprises: generating a frame loss pattern of the video by indicating whether each frame in the video is lost or successfully transmitted; and evaluating the quality of the video as a function of the generated t came loss pattern.
摘要翻译：提供了一种用于测量视频质量的方法和装置。该方法包括：通过指示视频中的每个帧是丢失还是成功发送来产生视频的帧丢失模式; 并且根据所产生的损失模式来评估视频的质量。

4. 发明申请

US20130070106A1 METHOD FOR DETERMINING A QUALITY MEASURE FOR A VIDEO IMAGE AND APPARATUS FOR DETERMINING A QUALITY MEASURE FOR A VIDEO IMAGE 有权
标题翻译：用于确定视频图像的质量测量的方法和用于确定视频图像的质量度量的装置
公开(公告)号：US20130070106A1
公开(公告)日：2013-03-21
申请号：US13320553
申请日：2010-11-18
申请人： De Bing Liu , Zhi Bo Chen , Xiao Dong Gu
发明人： De Bing Liu , Zhi Bo Chen , Xiao Dong Gu
IPC分类号： H04N17/00
CPC分类号： H04N17/004
摘要： Accurately estimating the image quality of video is still difficult, especially when there is no reference video available. A method for determining a quality measure for a video image comprises selecting a measuring point, such as a MB, determining a context area around the measuring point, calculating a variance of pixel values in the context area, calculating a variance of pixel values in the measuring point, calculating a relation between the two variances of pixel values, and averaging said relations for a plurality of measuring points, wherein a quality measure for a video image is obtained.
摘要翻译：准确估计视频的图像质量仍然很困难，特别是当没有可用的参考视频时。一种用于确定视频图像的质量测量的方法包括：选择测量点，诸如MB，确定测量点周围的上下文区域，计算上下文区域中的像素值的方差，计算像素值的方差测量点，计算像素值的两个方差之间的关系，以及平均用于多个测量点的所述关系，其中获得视频图像的质量测量。

5. 发明申请

US20110317768A1 METHOD AND APPARATUS FOR DETERMINING BLUR IN AN IMAGE 有权
标题翻译：用于确定图像中的图像的方法和装置
公开(公告)号：US20110317768A1
公开(公告)日：2011-12-29
申请号：US13138600
申请日：2010-02-26
申请人： De Bing Liu , Zhi Bo Chen , Xiao Dong Gu , Feng Xu
发明人： De Bing Liu , Zhi Bo Chen , Xiao Dong Gu , Feng Xu
IPC分类号： H04N7/26 , G06T5/00 , G06K9/40 , H04N7/68
CPC分类号： H04N19/14 , G06T7/0002 , G06T2207/30168 , H04N19/174 , H04N19/176 , H04N19/44 , H04N19/61 , H04N19/86
摘要： Blur is one of the most important features related to video quality. Accurate estimating the blur level of a video is a great help to accurately evaluate the video quality. An improved method is provided for estimating the blur level of videos that are compressed by a block based codec, such as H.264/AVC, MPEG2, etc. According to the invention, local blur detection is based on macroblock (MB) edges, a content dependent weighting scheme is employed to decrease the influence from texture and when detecting local blur, the spreading of detection will stop at local minimum and maximum luminance positions.
摘要翻译：模糊是与视频质量相关的最重要的功能之一。准确估计视频的模糊级别对于准确评估视频质量是一个很大的帮助。提供了一种改进的方法来估计由诸如H.264 / AVC，MPEG2等的基于块的编解码器压缩的视频的模糊级别。根据本发明，局部模糊检测基于宏块（MB）边缘，采用内容相关加权方案来减小纹理的影响，并且当检测局部模糊时，检测的扩展将在局部最小和最大亮度位置停止。

6. 发明授权

US08970710B2 Method and apparatus for measuring quality of video based on frame loss pattern 有权
标题翻译：基于帧丢失模式测量视频质量的方法和装置
公开(公告)号：US08970710B2
公开(公告)日：2015-03-03
申请号：US13989130
申请日：2010-11-30
申请人： Xiao Dong Gu , De Bing Liu , Zhi Bo Chen
发明人： Xiao Dong Gu , De Bing Liu , Zhi Bo Chen
IPC分类号： H04N17/00 , H04N17/02
CPC分类号： H04N17/00 , H04N17/004
摘要： A method and apparatus for measuring the quality of a video is provided. The method comprises: generating a frame loss pattern of the video by indicating whether each frame in the video is lost or successfully transmitted; and evaluating the quality of the video as a function of the generated t came loss pattern.
摘要翻译：提供了一种用于测量视频质量的方法和装置。该方法包括：通过指示视频中的每个帧是丢失还是成功发送来产生视频的帧丢失模式; 并且根据所产生的损失模式评估视频的质量。

7. 发明申请

US20130211803A1 METHOD AND DEVICE FOR AUTOMATIC PREDICTION OF A VALUE ASSOCIATED WITH A DATA TUPLE 审中-公开
标题翻译：用于自动预测与数据轮相关的数值的方法和装置
公开(公告)号：US20130211803A1
公开(公告)日：2013-08-15
申请号：US13879407
申请日：2010-10-18
申请人： Feng Xu , De Bing Liu , Xiao Dong Gu , Zhi Bo Chen
发明人： Feng Xu , De Bing Liu , Xiao Dong Gu , Zhi Bo Chen
IPC分类号： G06F17/50
CPC分类号： G06F17/5018 , G06F17/18 , G06K9/6276 , G06N20/00 , H04N19/14 , H04N19/154 , H04N19/162
摘要： The invention relates to a method and a device for automatic prediction of a current value using a weighted average of a number of current reference values, wherein the current value is associated with a current pair consisting of a first and a second current data tuple. The method comprises using a set of reference pairs, each reference pair consisting of a first and a second reference data tuple and being associated with a reference value, for selecting the current reference values wherein the first reference data tuples, the first current data tuple and a first metric is used for selecting, determining, for each current reference value, an associated weight using the second reference data tuples of the pair associated with the respective selected reference value, the second current data tuple and a second metric, and using the current reference values and the determined weights for determining the weighted average.
摘要翻译：本发明涉及一种使用多个当前参考值的加权平均来自动预测当前值的方法和装置，其中当前值与由第一和第二当前数据元组组成的当前对相关联。该方法包括使用一组参考对，每个参考对由第一和第二参考数据元组组成并与参考值相关联，用于选择当前参考值，其中第一参考数据元组，第一当前数据元组和第一度量用于使用与相应选择的参考值，第二当前数据元组和第二度量相关联的对的第二参考数据元组来选择，确定每个当前参考值相关联的权重，并且使用当前参考值和确定加权平均值的确定权重。

8. 发明授权

US08559501B2 Method and apparatus for adaptively determining a bit budget for encoding video pictures 有权
标题翻译：用于自适应地确定用于编码视频图像的比特预算的方法和装置
公开(公告)号：US08559501B2
公开(公告)日：2013-10-15
申请号：US12308136
申请日：2006-06-09
申请人： Qu Qing Chen , Zhi Bo Chen , Xiao Dong Gu
发明人： Qu Qing Chen , Zhi Bo Chen , Xiao Dong Gu
IPC分类号： H04N7/12
CPC分类号： H04N19/194 , H04N19/103 , H04N19/107 , H04N19/115 , H04N19/124 , H04N19/14 , H04N19/149 , H04N19/15 , H04N19/152 , H04N19/159 , H04N19/164 , H04N19/172 , H04N19/176 , H04N19/177 , H04N19/61
摘要： When for video coding Intra refresh is used, which inserts Intra coded blocks into previously Inter coded pictures, an efficiently adapted rate control method is required for error resilient video coding. A method for adaptively determining a bit budget for encoding video pictures comprises pre-analyzing each of the pictures of a group of pictures, wherein a relative complexity index is calculated for each picture, allocating bits to the pictures based on their relative complexity index and encoding each of the pictures with the allocated number of bits. The pre-analysis comprises selecting pictures for Intra refresh coding, extracting attention area information from the selected pictures, encoding at least the macroblocks of the attention area using Intra mode, calculating for each picture a complexity index, and calculating from the complexity indices of the pictures of the group a relative complexity index for each picture. Thus, a subjectively better video quality is achieved.
摘要翻译：当用于视频编码时，使用内部刷新，其将内部编码块插入到先前的帧间编码图像中，对于错误弹性视频编码需要有效地适应的速率控制方法。一种用于自适应地确定用于编码视频图像的比特预算的方法包括对一组图像的每个图像进行预分析，其中针对每个图像计算相对复杂度指数，并且基于它们的相对复杂度索引和编码将比特分配给图像每个图片分配的位数。预分析包括选择帧内刷新编码的图像，从所选择的图像中提取注意区域信息，至少使用内部模式对关注区域的宏块进行编码，针对每个图像计算复杂度指数，以及根据组图片为每幅图片的相对复杂性指数。因此，实现主观上更好的视频质量。

9. 发明授权

US08447123B2 Method and apparatus for selecting a scan path for the elements of a block in spatial domain picture encoding and decoding 有权
标题翻译：用于在空间域图像编码和解码中为块的元素选择扫描路径的方法和装置
公开(公告)号：US08447123B2
公开(公告)日：2013-05-21
申请号：US12450869
申请日：2007-04-20
申请人： Qu Qing Chen , Zhi Bo Chen , Xiao Dong Gu
发明人： Qu Qing Chen , Zhi Bo Chen , Xiao Dong Gu
IPC分类号： G06K9/36
CPC分类号： H04N19/93 , H04N19/102 , H04N19/12 , H04N19/14 , H04N19/176 , H04N19/61 , H04N19/91
摘要： International image or video coding standards uses hybrid coding, wherein a picture is separated into pixel blocks on which predictive coding, transform coding and entropy coding is employed. The transform coding is effective because the prediction error samples are correlated in the frequency domain. However, when the prediction quality is getting better and better, spatial domain coding becomes more effective than transform coding. According to the invention, it is first determined in which corner of a current block the first non-zero amplitude value is located. Based on the related zeros run length value in that block, a pre-defined scan path is selected, i.e. a context-based adaptive scan mode is used.
摘要翻译：国际图像或视频编码标准使用混合编码，其中将图像分成使用预测编码，变换编码和熵编码的像素块。变换编码是有效的，因为预测误差样本在频域上是相关的。然而，当预测质量越来越好时，空间域编码变得比变换编码更有效。根据本发明，首先确定当前块的哪一个角位于第一非零振幅值。基于该块中相关的零运行长度值，选择预定义的扫描路径，即使用基于上下文的自适应扫描模式。

10. 发明申请

US20100040298A1 METHOD AND APPARATUS FOR SELECTING A SCAN PATH FOR THE ELEMENTS OF A BLOCK IN SPATIAL DOMAIN PICTURE ENCODING AND DECODING 有权
标题翻译：用于选择空间图像编码和解码中块的元素的扫描路径的方法和装置
公开(公告)号：US20100040298A1
公开(公告)日：2010-02-18
申请号：US12450869
申请日：2007-04-20
申请人： Qu Qing Chen , Zhi Bo Chen , Xiao Dong Gu
发明人： Qu Qing Chen , Zhi Bo Chen , Xiao Dong Gu
IPC分类号： G06K9/46 , G06K9/36
CPC分类号： H04N19/93 , H04N19/102 , H04N19/12 , H04N19/14 , H04N19/176 , H04N19/61 , H04N19/91
摘要： International image or video coding standards uses hybrid coding, wherein a picture is separated into pixel blocks on which predictive coding, transform coding and entropy coding is employed. The transform coding is effective because the prediction error samples are correlated in the frequency domain. However, when the prediction quality is getting better and better, spatial domain coding becomes more effective than transform coding. According to the invention, it is first determined in which corner of a current block the first non-zero amplitude value is located. Based on the related zeros run length value in that block, a pre-defined scan path is selected, i.e. a context-based adaptive scan mode is used.
摘要翻译：国际图像或视频编码标准使用混合编码，其中将图像分成使用预测编码，变换编码和熵编码的像素块。变换编码是有效的，因为预测误差样本在频域上是相关的。然而，当预测质量越来越好时，空间域编码变得比变换编码更有效。根据本发明，首先确定当前块的哪一个角位于第一非零振幅值。基于该块中相关的零运行长度值，选择预定义的扫描路径，即使用基于上下文的自适应扫描模式。

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