Objective evaluation method for data-driving user experience in video business

An objective evaluation method and technology for video services, applied in TV, electrical components, selective content distribution, etc., can solve problems such as inability to quantitatively measure and evaluate, and achieve perfect video services and transmission services, high similarity, and no abnormal values. sensitive effect

Inactive Publication Date: 2017-05-31
NANJING UNIV OF POSTS & TELECOMM
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AI Technical Summary

Problems solved by technology

To this end, Quality of Experience (QoE for short) is introduced to describe user experience, but QoE has strong subjective characteristics and cannot be quantitatively measured and evaluated. Therefore, it is very difficult to solve this subjective problem with an objective method. The essential

Method used

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  • Objective evaluation method for data-driving user experience in video business
  • Objective evaluation method for data-driving user experience in video business
  • Objective evaluation method for data-driving user experience in video business

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Embodiment Construction

[0034] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0035] Step 1: Determine the end-to-end parameters that affect user experience: including video encoding parameters, network impairment parameters and user terminal parameters, such as figure 1 As shown, the video coding parameters include the media bit rate, the network damage parameters include packet loss rate, jitter and delay, and the user terminal parameters include the CPU usage rate and memory usage rate of the set-top box.

[0036] (1) Video encoding parameters:

[0037] User experience is closely related to video quality, and video quality is closely related to video encoding. The higher the media bit rate, the higher the video quality and the better the user experience.

[0038] (2) Network damage parameters:

[0039] Changes in network conditions during video transmission can adversely affect user experience. Packet loss rate, jitter...

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Abstract

The invention discloses an objective evaluation method for data-driving user experience in a video business. The method comprises the steps of firstly finding a factor influencing the user experience in the video business, and determining an end-to-end parameter having large influence on the user experience; then extracting a video encoding parameter, a network damage parameter and a user terminal parameter; and acquiring a user experience evaluation model in the video business by using a statistics-based method according to the extracted end-to-end parameter, thus acquiring an objective computation method for the user experience, which means outputting an objective MOS value. According to the method provided by the invention, the problem that in existing methods, the output objective MOS value used for evaluating the user experience is not highly related to a user subjective MOS value, and poor in prediction accuracy and generalization ability is solved. By using the method provided by the invention, an optimal fitting curved surface is found according to a sample point without providing a function to be fit in advance. In addition, the problem of objectifying the subjective problem can be effectively solved, and the acquired objective MOS value is highly accordant with the user subjective experience.

Description

technical field [0001] The invention belongs to the field of video viewing user experience evaluation, and in particular relates to an objective evaluation method of data-driven user experience in video services. Background technique [0002] The wide application and promotion of video services in interactive network television (IPTV), Internet, etc. have enriched people's lives, but on the other hand, service providers and network operators are more concerned about the quality of video services provided, that is, , what is the user experience of watching the video. However, as a relatively immature technology, there is still a lack of a strong quality inspection system to ensure this high-quality service requirement. At the same time, due to the huge number of users and their wide distribution, service providers cannot use statistical means to obtain reliable information that can reflect the service quality of the entire network. However, independent parameters and indica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/44H04N17/00
CPCH04N21/44008H04N17/00
Inventor 周亮魏昕黄若尘孟浩
Owner NANJING UNIV OF POSTS & TELECOMM
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