Composite QoE Measurement for Video Streaming Quality
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Solution Overview
Problem
The dynamic nature of internet bandwidth, particularly in shared networks and mobile communication, leads to unpredictable video buffering and stalling during video streaming, degrading the user experience and requiring current techniques to reduce video bitrate, which results in undesired loss of quality.
Innovation Solution
A system and method for quantifying the holistic Quality of Experience (QoE) in video transmission by deploying a multimedia QoE measurement system that processes multimedia data across networks, acquiring user experience metrics such as smoothness index, start delay, bitrate, frame size, and frame rate, and normalizing them to determine a composite multimedia QoE score, providing a holistic view of video quality and service optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If video bitrate is reduced to prevent buffering and stalling, then video playback smoothness is improved, but video quality deteriorates
Solution Approach 1:
The system dynamically changes video transmission parameters (bitrate, resolution, frame rate) based on real-time network conditions and user device capabilities. By adjusting these parameters adaptively rather than using a fixed bitrate, the system maintains video playback smoothness while preserving video quality as much as possible under current network conditions.
Solution Approach 2:
The patent implements a dynamic quality adjustment mechanism that continuously monitors network bandwidth, user device performance, and playback buffer status. The system dynamically adapts video streaming parameters in real-time, transitioning between different quality levels based on current conditions, thereby resolving the contradiction between maintaining smooth playback and preserving video quality.
2Measurement precision
If multiple video quality metrics are measured separately, then measurement comprehensiveness is improved, but measurement complexity increases
Solution Approach 1:
The patent combines multiple separate quality measurement functions into a unified QoE measurement system. Instead of measuring video quality, network conditions, and playback performance separately, the system integrates these measurements into a single comprehensive framework that produces an overall Quality of Experience score, thereby reducing measurement complexity while maintaining comprehensiveness.
Solution Approach 2:
The measurement system is designed to perform multiple functions simultaneously: it measures network bandwidth, video playback smoothness, video quality metrics, and user device performance all through a single unified measurement platform. This multi-functional approach eliminates the need for separate measurement systems for each metric, reducing overall system complexity.
Data Source
AI summary
A system and method is provided for providing a composite Quality of Experience (QoE) metrics associated with a multimedia transmitted via a network. The method includes obtaining multimedia data corresponding to the multimedia transmitted via the network and acquiring metrics associated with the multimedia data. The metrics includes at least one multimedia transmitting metrics and at least one multimedia quality metrics. The method also includes normalizing the metrics and determining, based on the one or more normalized metrics, the composite multimedia QoE metrics.