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公开(公告)号：US09906784B2
公开(公告)日：2018-02-27
申请号：US14583478
申请日：2014-12-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lina Sun , Shan Gao , Qingpeng Xie
IPC: H04N17/02 , H04N7/12 , H04N11/04 , H04N11/02 , H04N5/91 , H04N19/89 , H04N17/00 , H04N21/44 , H04N19/159 , H04N19/102 , H04N19/14 , H04N19/146
CPC classification number: H04N17/02 , H04N17/004 , H04N19/102 , H04N19/14 , H04N19/146 , H04N19/159
Abstract: Embodiments of the present invention disclose a method and an apparatus for acquiring video coding compression quality. The method may include: acquiring video stream information; calculating video content complexity according to the video stream information; and calculating video coding compression quality according to the bit rate, the frame rate and the video content complexity. In the embodiments of the present invention, the video coding compression quality may be acquired as long as the video frame information, the bit rate, the frame rate and the video content complexity of a video stream are acquired. The video coding compression quality may be used in subsequent video quality assessment. This process greatly reduces video quality assessment complexity and the assessment may be performed in real time. In addition, the assessed coding compression quality meets the subjective feeling of human eyes better.
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公开(公告)号：US08908047B2
公开(公告)日：2014-12-09
申请号：US14264978
申请日：2014-04-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lina Sun , Qingpeng Xie , Dong Li , Fuzheng Yang , Liang Zhou , Chang Huang
CPC classification number: H04N17/00 , H04N17/004
Abstract: Embodiments of the present invention disclose a method and an apparatus for obtaining a video quality parameter and an electronic device. The method includes dividing a target video segment into at least one video subsegment, where duration of every video subsegment is at least time perceivable by human eyes; obtaining a video quality parameter of the video subsegment; and processing the video quality parameter of the video subsegment, and obtaining a video quality parameter of the target video segment.
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公开(公告)号：US10045051B2
公开(公告)日：2018-08-07
申请号：US14539423
申请日：2014-11-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Lina Sun , Shan Gao , Fuzheng Yang
IPC: H04N19/86 , H04N19/85 , H04N19/124 , H04N19/154 , H04N17/00
Abstract: Embodiments of the present invention provide a method and an apparatus for assessing video quality. The method includes: determining an actual quantization parameter and a critical quantization parameter of the target video according to a target video, where the critical quantization parameter is a maximum quantization parameter of the target video in a case in which a distortion is not evidently identifiable by human eyes; and determining quality of the target video according to the actual quantization parameter and the critical quantization parameter. According to the method and apparatus of the present invention, a critical quantization parameter of a target video is determined, and the actual quantization parameter is compared with the critical quantization parameter, which can accurately determine whether subjective quality of the target video changes strictly monotonically relative to the used actual quantization parameter, so that the video quality can be assessed accurately.
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公开(公告)号：US09402074B2
公开(公告)日：2016-07-26
申请号：US14570992
申请日：2014-12-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shan Gao , Lina Sun , Qingpeng Xie
IPC: H04N17/00 , H04N19/154
CPC classification number: H04N17/004 , H04N19/154 , H04N21/2402
Abstract: Embodiments of the present invention provide a multimedia quality monitoring method, and a device. The method includes: determining reference quality of multimedia according to reference video quality and reference audio quality of the multimedia; acquiring multimedia distortion quality after at least one of video distortion and audio distortion of the multimedia occurs; and determining quality of the multimedia according to the reference quality of the multimedia and the multimedia distortion quality. Therefore, accuracy of a multimedia quality monitoring result is improved.
Abstract translation: 本发明的实施例提供一种多媒体质量监测方法和装置。 该方法包括：根据多媒体的参考视频质量和参考音频质量确定多媒体的参考质量; 在发生多媒体视频失真和音频失真中的至少一个后，获取多媒体失真质量; 并根据多媒体的参考质量和多媒体失真质量确定多媒体的质量。 因此，提高了多媒体质量监控结果的准确性。
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公开(公告)号：US09319670B2
公开(公告)日：2016-04-19
申请号：US13954168
申请日：2013-07-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lina Sun , Shan Gao , Qingpeng Xie
CPC classification number: H04N17/004 , H04N21/44008
Abstract: A video data quality assessment method and apparatus are disclosed. The video data quality assessment method includes: acquiring a compression distortion parameter of video data; acquiring a frame impairment distortion parameter/video data rebuffering parameter; and calculating a video quality parameter according to the compression distortion parameter and the frame impairment distortion parameter/video data rebuffering parameter, where the video quality parameter is a difference between the compression distortion parameter and the frame impairment distortion parameter/video data rebuffering parameter.
Abstract translation: 公开了一种视频数据质量评估方法和装置。 视频数据质量评估方法包括：获取视频数据的压缩失真参数; 获取帧损害失真参数/视频数据重排参数; 并且根据压缩失真参数和帧损害失真参数/视频数据重新接收参数来计算视频质量参数，其中视频质量参数是压缩失真参数和帧损害失真参数/视频数据重排参数之间的差异。
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Patent Agency Ranking
公开(公告)号：US20150296208A1
公开(公告)日：2015-10-15
申请号：US14751373
申请日：2015-06-26
Applicant: Huawei Technologies Co., Ltd.
IPC: H04N19/124 , H04N19/85
CPC classification number: H04N19/124 , H04N17/004 , H04N19/14 , H04N19/154 , H04N19/174 , H04N19/197 , H04N19/85
Abstract: A method and a device for assessing video encoding quality. The method includes: acquiring a quantization parameter of a slice of a video frame and a quantity of bytes per pixel of the slice of the video frame of the video stream; determining complexity of content of the video according to the quantity of bytes per pixel of the slice of the video frame of the video stream; and predicting the video encoding quality according to the complexity of content of the video and the quantization parameter of the video. In the present invention, the complexity of content of the video is also considered in predicting the video encoding quality. Therefore, encoding quality predicted by a model that is obtained by considering the complexity of content of the video better satisfies subjective feelings of human eyes, thereby improving accuracy of prediction.
Abstract translation: 一种用于评估视频编码质量的方法和装置。 该方法包括：获取视频帧的切片的量化参数和视频流的视频帧的切片的每像素的数量; 根据视频流的视频帧的片的每像素的字节数量确定视频的内容的复杂度; 并根据视频内容的复杂度和视频的量化参数来预测视频编码质量。 在本发明中，在预测视频编码质量时也考虑到视频内容的复杂性。 因此，通过考虑视频内容的复杂度获得的模型预测的编码质量更好地满足人眼的主观感觉，从而提高预测的准确性。
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公开(公告)号：US20150256822A1
公开(公告)日：2015-09-10
申请号：US14721610
申请日：2015-05-26
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04N17/004 , H04N5/145 , H04N5/38 , H04N19/00 , H04N19/89
Abstract: A method and an apparatus for assessing a video freeze distortion degree. The method includes acquiring a frame rate and a freeze feature parameter of a freeze event that are of a video stream, and the freeze event is used to represent a pause of the video stream; and acquiring a freeze event distortion value of the video stream according to the frame rate and the freeze feature parameter that are of the video stream, where the freeze event distortion value is used to represent a distortion degree of the video stream. The method and the apparatus for assessing a video freeze distortion degree in the embodiments of the present invention are more in line with subjective feelings of human, and improve accuracy of a distortion degree assessment.
Abstract translation: 一种用于评估视频冻结失真度的方法和装置。 该方法包括获取视频流的冻结事件的帧率和冻结特征参数，并且冻结事件用于表示视频流的暂停; 以及根据视频流的帧速率和冻结特征参数获取视频流的冻结事件失真值，其中使用冻结事件失真值来表示视频流的失真度。 用于评估本发明的实施例中的视频冻结失真度的方法和装置更符合人的主观感觉，并提高失真度评估的准确性。
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公开(公告)号：US20150110204A1
公开(公告)日：2015-04-23
申请号：US14583478
申请日：2014-12-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Lina Sun , Shan Gao , Qingpeng Xie
IPC: H04N17/02
CPC classification number: H04N17/02 , H04N17/004 , H04N19/102 , H04N19/14 , H04N19/146 , H04N19/159
Abstract: Embodiments of the present invention disclose a method and an apparatus for acquiring video coding compression quality. The method may include: acquiring video stream information; calculating video content complexity according to the video stream information; and calculating video coding compression quality according to the bit rate, the frame rate and the video content complexity. In the embodiments of the present invention, the video coding compression quality may be acquired as long as the video frame information, the bit rate, the frame rate and the video content complexity of a video stream are acquired. The video coding compression quality may be used in subsequent video quality assessment. This process greatly reduces video quality assessment complexity and the assessment may be performed in real time. In addition, the assessed coding compression quality meets the subjective feeling of human eyes better.
Abstract translation: 本发明的实施例公开了一种获取视频编码压缩质量的方法和装置。 该方法可以包括：获取视频流信息; 根据视频流信息计算视频内容复杂度; 并根据比特率，帧速率和视频内容复杂度来计算视频编码压缩质量。 在本发明的实施例中，只要获取视频帧的视频帧信息，比特率，帧速率和视频内容复杂度，就可以获取视频编码压缩质量。 视频编码压缩质量可用于随后的视频质量评估。 这个过程大大降低了视频质量评估的复杂性，并且可以实时地进行评估。 此外，评估的编码压缩质量更好地满足人眼的主观感觉。
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公开(公告)号：US20130343222A1
公开(公告)日：2013-12-26
申请号：US14014735
申请日：2013-08-30
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bing Chen , Qingpeng Xie , Lina Sun
IPC: H04L12/24
CPC classification number: H04L41/5067 , H04L41/5038 , H04L65/80
Abstract: The present invention discloses a method for measuring user quality of experience QoE, where the method includes the following steps: receiving event information sent by a receiving end, where the event information includes condition information for determining a cause for shortage of valid media data in a buffer of the receiving end; determining, according to the condition information, whether the shortage of the valid media data in the buffer of the receiving end is caused by a service system or caused by a user's action; and measuring QoE decrease degrees according to different causes for the shortage of the valid media data in the buffer, respectively.
Abstract translation: 本发明公开了一种用于测量用户体验质量QoE的方法，其中所述方法包括以下步骤：接收由接收端发送的事件信息，其中所述事件信息包括用于确定有缺陷的媒体数据的原因的条件信息 接收端的缓冲区; 根据条件信息确定接收端的缓冲器中的有效媒体数据的不足是由服务系统引起还是由用户的动作引起的; 并根据缓冲区中有效媒体数据不足的不同原因测量QoE减小度。
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公开(公告)号：US10116929B2
公开(公告)日：2018-10-30
申请号：US15188611
申请日：2016-06-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Shan Gao , Lina Sun , Qingpeng Xie
IPC: H04N17/00 , H04N19/154 , H04N21/24
Abstract: Embodiments of the present invention provide a multimedia quality monitoring method, and a device. The method includes: determining reference quality of multimedia according to reference video quality and reference audio quality of the multimedia; acquiring multimedia distortion quality that is after video distortion and/or audio distortion of the multimedia occur/occurs; and determining quality of the multimedia according to the reference quality of the multimedia and the multimedia distortion quality. Therefore, accuracy of a multimedia quality monitoring result is improved.
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