专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明公开

EP2296379A1 METHOD, SYSTEM AND EQUIPMENT FOR EVALUATING VIDEO QUALITY 审中-公开
标题翻译：评估视频质量的方法，系统和设备
公开(公告)号：EP2296379A1
公开(公告)日：2011-03-16
申请号：EP09799953.6
申请日：2009-05-05
申请人： Huawei Technologies Co., Ltd.
发明人： XIE, Qingpeng , YANG, Fuzheng , WAN, Shuai , LIN, Sixin , XIONG, Lianhuan
IPC分类号： H04N7/24
CPC分类号： H04N19/89 , H04N17/004 , H04N19/109 , H04N19/132 , H04N19/152 , H04N19/166 , H04N19/172 , H04N19/179 , H04N19/44 , H04N19/65 , H04N19/86
摘要： A method, a system, and an apparatus for evaluating video quality are disclosed to improve accuracy of the evaluation. The method includes: obtaining information about a transmitted video; resolving the information about the transmitted video to obtain video frame parameters, where the video frame parameters include a compression distortion parameter and/or a video quality distortion parameter with packet loss; and calculating a video frame quality parameter according to the video frame parameters. An apparatus and a system for evaluating video quality are provided. The embodiments of the present invention improve accuracy of video quality evaluation without reference.
摘要翻译：公开了一种评估视频质量的方法，系统和设备，以提高评估的准确性。该方法包括：获得关于发送的视频的信息; 解析关于传输的视频的信息以获得视频帧参数，其中视频帧参数包括压缩失真参数和/或具有分组丢失的视频质量失真参数; 并根据视频帧参数计算视频帧质量参数。提供了一种评估视频质量的装置和系统。本发明的实施例在没有参考的情况下提高了视频质量评估的准确性。

2. 发明授权

EP1814307B9 METHOD FOR DETECTING THE QUALITY OF THE MULTIMEDIA COMMUNICATION 有权
标题翻译：多媒体通信质量相关检测方法
公开(公告)号：EP1814307B9
公开(公告)日：2010-05-26
申请号：EP06753011.3
申请日：2006-06-23
申请人： Huawei Technologies Co., Ltd.
发明人： YANG, Fuzheng , LUO, Zhong , WAN, Shuai , CHANG, Yilin
IPC分类号： G06T1/00 , H04N1/56 , H04N17/00
CPC分类号： H04N17/004 , G06T1/0028 , G06T2201/0051 , G06T2201/0061 , G06T2201/0083 , G06T2201/0202

3. 发明公开

EP1814307A1 METHOD FOR DETECTING THE QUALITY OF THE MULTIMEDIA COMMUNICATION 有权
标题翻译： QUALITÄTERKENNUNGSMETHODEVON MULTIMEDIAKOMMUNIKATION
公开(公告)号：EP1814307A1
公开(公告)日：2007-08-01
申请号：EP06753011.3
申请日：2006-06-23
申请人： Huawei Technologies Co., Ltd.
发明人： YANG, Fuzheng , LUO, Zhong , WAN, Shuai , CHANG, Yilin
IPC分类号： H04N1/56
CPC分类号： H04N17/004 , G06T1/0028 , G06T2201/0051 , G06T2201/0061 , G06T2201/0083 , G06T2201/0202
摘要： A method for measuring multimedia communication quality is disclosed. The multimedia video communication quality may be objectively reflected through the embedment and extraction of digital watermark under a precondition that the quality of the multimedia video data is not obviously affected. In the invention, each frame of the multimedia video data is uniformly divided into blocks of equal size and watermark data is embedded in each of the blocks, so that the watermark may be uniformly distributed. The multimedia video data are divided into groups, and the watermark is embedded in a part of the frames with equal interval between the frames in each group to reduce the effect of the watermark on the data. The watermark information is directly embedded in the spatial domain of the original video data. The PSNR of the video data is linearly fitted using the accuracy rate of the recovered watermark relative to the original watermark, and the fitted PSNR is regarded as a measurement indication of the multimedia video communication quality. Post-processing such as smoothing filtering is performed on video frames after watermark extraction to eliminate the effect of the watermark on the multimedia video data quality.
摘要翻译：公开了一种用于测量多媒体通信质量的方法。多媒体视频通信质量可以通过数字水印的嵌入和提取在多媒体视频数据的质量不受明显影响的前提下客观反映。在本发明中，将多媒体视频数据的每一帧均匀地划分为相等大小的块，并且将水印数据嵌入到每个块中，使得水印可以均匀分布。多媒体视频数据被分成组，并且水印嵌入在每个组中的帧之间具有相等间隔的帧的一部分中，以减少水印对数据的影响。水印信息直接嵌入到原始视频数据的空间域中。视频数据的PSNR使用恢复的水印相对于原始水印的准确率进行线性拟合，拟合的PSNR被认为是多媒体视频通信质量的测量指示。在水印提取之后对视频帧执行平滑滤波等后处理，以消除水印对多媒体视频数据质量的影响。

4. 发明公开

EP2229002A1 METHOD, DEVICE AND SYSTEM FOR EVALUATING QUALITY OF VIDEO CODE STREAM 审中-公开
标题翻译： VERFAHREN，VORRICHTUNG系统ZUR BEWERTUNG DERQUALITÄTEINES VIDEOCODE-STREAMS
公开(公告)号：EP2229002A1
公开(公告)日：2010-09-15
申请号：EP09793813.8
申请日：2009-06-04
申请人： Huawei Technologies Co., Ltd.
发明人： XIE, Qingpeng , YANG, Fuzheng , WAN, Shuai
IPC分类号： H04N17/00
CPC分类号： H04N19/89 , H04L65/80 , H04N17/004 , H04N19/159 , H04N19/61 , H04N21/4385 , H04N21/44008 , H04N21/442
摘要： A method for evaluating quality of video streams includes: obtaining video streams; obtain coding information of video frames in the video stream; evaluating the single frame quality according to the coding information of the video frames; and evaluating the sequence quality according to the single frame quality evaluation result. An apparatus and a system for evaluating quality are also provided. Thus, the quality of video data packets transmitted in a channel can be predicted accurately, and the single frame quality evaluation result of the video frames can be obtained immediately.
摘要翻译：一种用于评估视频流的质量的方法包括：获得视频流; 获取视频流中视频帧的编码信息; 根据视频帧的编码信息评估单帧质量; 并根据单帧质量评估结果评估序列质量。还提供了一种用于评估质量的装置和系统。因此，可以精确地预测在信道中发送的视频数据分组的质量，并且可以立即获得视频帧的单帧质量评估结果。

5. 发明授权

EP1814307B1 METHOD FOR DETECTING THE QUALITY OF THE MULTIMEDIA COMMUNICATION 有权
标题翻译：多媒体通信质量相关检测方法
公开(公告)号：EP1814307B1
公开(公告)日：2009-12-16
申请号：EP06753011.3
申请日：2006-06-23
申请人： Huawei Technologies Co., Ltd.
发明人： YANG, Fuzheng , LUO, Zhong , WAN, Shuai , CHANG, Yilin
IPC分类号： G06T1/00 , H04N1/56 , H04N17/00
CPC分类号： H04N17/004 , G06T1/0028 , G06T2201/0051 , G06T2201/0061 , G06T2201/0083 , G06T2201/0202

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式