Video quality assessment method and apparatus

    公开(公告)号:US11070794B2

    公开(公告)日:2021-07-20

    申请号:US16689742

    申请日:2019-11-20

    Abstract: In a video quality assessment method, an assessment model is first generated based on a subjective assessment result of a user on each sample in a sample set and based on a parameter set (a parameter type in the parameter set may include at least one of a packet loss rate, a delay, and a jitter) of each sample. Therefore, when video quality is being assessed, a parameter set of a to-be-assessed video is obtained first, where the parameter set of the to-be-assessed video has a same parameter type as the parameter set of each sample that is used to generate the assessment model; and then video quality of the to-be-assessed video is assessed based on the assessment model and the parameter set of the to-be-assessed video, to obtain an assessment result.

    Network Device and Communication System

    公开(公告)号:US20250088939A1

    公开(公告)日:2025-03-13

    申请号:US18956928

    申请日:2024-11-22

    Abstract: This application discloses a network device and a communication system, to centrally manage terminal-side devices. The network device includes at least one of a terminal discovery unit, a terminal registration unit, and a terminal authentication unit. The terminal discovery unit is configured to discover a plurality of terminal-side devices connected to the network device, where the plurality of terminal-side devices include a first terminal and a second terminal, and the first terminal and the second terminal use different communication protocols. The terminal registration unit is configured to register the first terminal and the second terminal with a controller. The terminal authentication unit is configured to perform at least one of authentication, certificate distribution, and secondary authentication on the first terminal and the second terminal.

    Video Quality Assessment Method and Apparatus

    公开(公告)号:US20200162725A1

    公开(公告)日:2020-05-21

    申请号:US16689742

    申请日:2019-11-20

    Abstract: In a video quality assessment method, an assessment model is first generated based on a subjective assessment result of a user on each sample in a sample set and based on a parameter set (a parameter type in the parameter set may include at least one of a packet loss rate, a delay, and a jitter) of each sample. Therefore, when video quality is being assessed, a parameter set of a to-be-assessed video is obtained first, where the parameter set of the to-be-assessed video has a same parameter type as the parameter set of each sample that is used to generate the assessment model; and then video quality of the to-be-assessed video is assessed based on the assessment model and the parameter set of the to-be-assessed video, to obtain an assessment result.

    Service type determining method and related device

    公开(公告)号:US11381544B2

    公开(公告)日:2022-07-05

    申请号:US17315662

    申请日:2021-05-10

    Abstract: Embodiments of this application disclose a service type determining method and a related device. A first device obtains a dataset, where the dataset includes at least two 5-tuples. The first device determines a target feature (the target feature is used to indicate a service type corresponding to a target triplet) corresponding to the target triplet based on the dataset. In this way, the first device can identify the service type corresponding to the target triplet based on the target feature, to facilitate operations such as packet transmission traffic control or application identification based on the importance indicated by the service type.

    Method and apparatus for generating application identification model

    公开(公告)号:US12039422B2

    公开(公告)日:2024-07-16

    申请号:US17162669

    申请日:2021-01-29

    CPC classification number: G06N20/00 H04L41/145 H04L43/022

    Abstract: Embodiments of this application disclose a method and an apparatus for generating an application identification model. The method includes: obtaining Y data packets, where the Y data packets correspond to P applications, an ith application in the P applications corresponds to M(i) data packets, and Y=Σi=1PM(i), 1≤i≤P; extracting a target parameter of each of the M(i) data packets of each of the P applications to obtain M(i) samples, where the target parameter indicates information about a session connection established between the ith application and a server that provides the ith application; and training an initial identification model based on the M(i) samples of each of the P applications, to obtain a first application identification model, where the first application identification model is used to determine, based on a target parameter of a data packet, an application corresponding to the data packet.

    Poor-QoE assessment method and related device

    公开(公告)号:US11489904B2

    公开(公告)日:2022-11-01

    申请号:US17320497

    申请日:2021-05-14

    Abstract: A poor-QoE assessment method and a related device are provided. The method includes: obtaining m data streams transmitted by a network device; screening the m data streams, and determining that p data streams in the m data streams and that meet a first preset condition are data streams corresponding to a first type; performing feature extraction on the data streams corresponding to the first type, to obtain known feature vectors corresponding to the first type; training, by using the known feature vectors corresponding to the first type, an untrained first poor-QoE assessment model, to obtain a trained first poor-QoE assessment model; and performing, by using the trained first poor-QoE assessment model, poor-QoE assessment on n data streams corresponding to the first type, to obtain a first poor-QoE assessment result. This method can be universally used instead of an application.

Patent Agency Ranking