Huawei Technologies Co., Limited

Youqing Yang

Jie Xiong

Yihong Huang

Jinhui Zhang

Li Xue

Lu Zhang

Qiujie Fu

Hewen Zheng

Yinliang Hu

Shuying Liu

Peilin Yang

Hanyu Wei

Haizhou Xiang

Haibin Chen

Xingfen Wu

Wenxiao Yu

Xiangsheng Xu

A video service quality assessment method and apparatus, where a monitoring device is configured to: obtain an identifier of a to-be-monitored channel, an identifier of to-be-monitored user equipment, and configuration information of a video service transmission system; obtain a multicast video stream of the to-be-monitored channel based on the identifier of the to-be-monitored channel; obtain a retransmitted video stream based on the identifier of the to-be-monitored channel, the identifier of the to-be-monitored user equipment, and the configuration information of the video service transmission system; determine a to-be-assessed video stream based on the multicast video stream and the retransmitted video stream; parse the to-be-assessed video stream; and obtain an assessment result based on a parsing result and the configuration information of the video service transmission system.

Video service quality assessment method and apparatus

The present invention discloses a method, an apparatus, and a system for implementing video quality assessment. When video quality is assessed, a proportion of a damaged data caused by packet loss in a video frame in which the damaged data is located is considered, and other factors are also considered, such as a position of the damaged data in the video frame and impact of a scene in which the video frame is located on the video frame or a video frame located after the video frame. Therefore, accuracy of quality assessment is higher.

Method, apparatus, and system for implementing video quality assessment

A video quality assessment method includes obtaining a video quality assessment parameter of a to-be-assessed video, where the video quality assessment parameter of the to-be-assessed video includes an average packet loss gap of the to-be-assessed video, determining packet loss dispersion of the to-be-assessed video based on the video quality assessment parameter of the to-be-assessed video, and determining quality of the to-be-assessed video based on a packet loss rate of the to-be-assessed video, an average consecutive packet loss length of the to-be-assessed video, the packet loss dispersion of the to-be-assessed video, and attribute information of the to-be-assessed video.

Video quality assessment method and device

A video service quality assessment method and apparatus are provided to resolve a prior-art problem of relatively low accuracy of an assessment result. A monitoring device obtains an identifier of a to-be-monitored channel, an identifier of to-be-monitored user equipment, and configuration information of a video service transmission system; obtains a multicast video stream of the to-be-monitored channel based on the identifier of the to-be-monitored channel; obtains a retransmitted video stream based on the identifier of the to-be-monitored channel, the identifier of the to-be-monitored user equipment, and the configuration information of the video service transmission system; determines a to-be-assessed video stream based on the multicast video stream and the retransmitted video stream; and parses the to-be-assessed video stream, and obtains an assessment result based on a parsing result and the configuration information of the video service transmission system.

A method and an apparatus for detecting a scene change frame in a video and a system, where when a scene change frame in the video is detected, whether a maximum P frame (P) in all P frames in a group of pictures (GOP) of the video is a scene change frame is determined based on a relative relationship between a size Pof Pand a median or an average of sizes of a plurality of I frames between Pand a scene change frame closest to Pand before P, or a relative relationship between Pand a median or an average of sizes of a plurality of P frames in the GOP to detect a scene change frame in the P frames such that missed detection of a scene change frame is effectively reduced.

Method and apparatus for detecting scene change frame and system

A video quality assessment method includes obtaining a video quality assessment parameter of a to-be-assessed video, where the video quality assessment parameter of the to-be-assessed video includes an average packet loss gap of the to-be-assessed video, determining packet loss dispersion of the to-be-assessed video based on the video quality assessment parameter of the to-be-assessed video, and determining quality of the to-be-assessed video based on a packet loss rate of the to-be-assessed video, an average consecutive packet loss length of the to-be-assessed video, the packet loss dispersion of the to-be-assessed video, and attribute information of the to-be-assessed video. Therefore, during video quality assessment, impact of packet loss distribution indicated by the packet loss dispersion on the video quality is considered.

When video quality is assessed, a proportion of a damaged data caused by packet loss in a video frame in which the damaged data is located is considered, and other factors are also considered, such as a position of the damaged data in the video frame and impact of a scene in which the video frame is located on the video frame or a video frame located after the video frame. Therefore, accuracy of quality assessment is higher.

Method and apparatus for implementing video quality assessment of a GOP

This application discloses a method for visualized network operation and maintenance, including receiving a request for visualized network operation and maintenance, generating a workflow for visualized network operation and maintenance according to the request for visualized network operation and maintenance, and creating a network modeling input, and performing, according to the workflow for visualized network operation and maintenance, the network modeling input, and original information of network modeling, analog simulation on a network determined by the network modeling input.

Method and apparatus for visualized network operation and maintenance

The present invention discloses a method, an apparatus, and a system for monitoring quality of an OTT video, which can implement monitoring of quality of an OTT video in a convenient manner. An OTT video monitoring apparatus intercepts a message sent by an OTT video terminal to an OTT video source for requesting to watch an OTT video; sends a response message to the OTT video terminal, where the response message carries a monitoring instruction, so that the OTT video terminal obtains identifier information of the OTT video according to the monitoring instruction; the OTT video monitoring apparatus obtains the identifier information of the OTT video from the OTT video terminal; and monitors quality of the OTT video according to the identifier information of the OTT video.

Method, apparatus, and system for monitoring quality of OTT video

Embodiments of the present disclosure provide a method, a device and a system for evaluating a user experience value of video quality. The method is: acquiring an uplink packet of a user equipment for requesting to watch an OTT video, where the uplink packet is transmitted by the user equipment to a video server storing the OTT video and carries request information of the user equipment on the OTT video; acquiring a downlink packet corresponding to the uplink packet, where the downlink packet is transmitted by the video server to the user equipment and carries the OTT video, and the OTT video is transmitted by the video server according to the request information in the uplink packet; buffering the downlink packet; and in response to determining that the buffered downlink packet satisfies a resolving condition, resolving the OTT video in the buffered downlink packet to generate a user experience value.

Method, device and system for evaluating user experience value of video quality

A faulty link detection method includes receiving statistical data that is reported by all nodes every preset quantity of packets that carry a program clock reference value. All the nodes collect statistical data starting from a unified program clock reference value. The quantity of packets lost between an upstream node and a downstream node among all the nodes is acquired according to the statistical data. A faulty link is determined according to the quantity of packets lost between the upstream node and the downstream node.

Faulty link detection method, apparatus, node, and system

Embodiments of the present invention provide a method, an apparatus, and a system for evaluating video quality. In the embodiments of the present invention, a method in the prior art that the video quality is determined only according to the number of lost packets and a packet loss rate is modified, and the location of the most important lost packet is determined by analyzing the influence of the lost packet on other packets, and a damage degree or degree of intactness of the video frame is determined according to the most important lost packets, so as to determine the quality of the video frame. The method greatly improves the precision for evaluating the video quality.

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Shenzhen, China

Youqing Yang