Panoramic Video Quality Display Using Polar Attention Curves
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Solution Overview
Problem
Current panoramic video technologies fail to provide accurate and intuitive picture quality reference standards, as the picture track of interest is presented in a flattened format, making it difficult to display and assess picture quality effectively.
Innovation Solution
A panoramic video picture quality display method and device that uses a polar coordinate system to create an attention information curve, where attention position information and picture quality parameters are represented by color, line width, and line type, allowing for intuitive and accurate visualization of user attention and picture quality changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a flattened picture track of interest is used in the prior art, then the construction is simple, but the picture quality cannot be displayed intuitively and accurately
Solution Approach 1:
The patent applies the spheroidality principle by transitioning from a flattened rectangular coordinate system to a polar coordinate system that reflects the spherical nature of panoramic videos. This curvature-based coordinate transformation enables accurate representation of picture quality across the 360-degree panoramic field, resolving the contradiction between display accuracy and system complexity.
Solution Approach 2:
The patent employs dimensionality change by introducing angular dimensions (azimuth and elevation angles) to the traditional linear time-axis representation. This transforms the picture quality display from a one-dimensional flattened track to a multi-dimensional polar coordinate system, enabling intuitive and accurate visualization of picture quality in the panoramic space.
2Measurement precision
If high-resolution panoramic video is transmitted to meet higher visual experience, then picture quality is improved, but the volume of video data is enormous increasing transmission difficulty and play cost
Solution Approach 1:
The patent applies local quality by using the polar coordinate attention information curve to identify and prioritize picture quality parameters in regions of user interest. This enables differential quality processing where high-resolution data is transmitted only for important regions, while less important regions use lower resolution, thus reducing overall data volume while maintaining perceived picture quality.
Solution Approach 2:
The patent employs feedback mechanisms by using eye-tracking data and user attention information to dynamically adjust picture quality parameters. The system continuously monitors user focus points and adjusts the resolution and quality of video data transmitted to those specific regions, creating a closed-loop system that optimizes data transmission based on actual user needs.
3Quantity of substance
If resolution reduction is applied to reduce shooting cost and play cost, then data volume is reduced, but picture quality deteriorates
Solution Approach 1:
The patent resolves this contradiction by implementing local quality enhancement through the polar coordinate system. Instead of uniform resolution reduction, the system identifies key regions of interest using the attention information curve and maintains high resolution only in those areas, while applying resolution reduction in less important regions. This selective approach reduces overall data volume while preserving picture quality where it matters most to users.
Data Source
AI summary
The present application provides a panoramic video picture quality display method and device. Attention position information of a user at different time points in a preset period of time is obtained, the attention position information includes a picture horizontal angle; an attention information curve is created in a polar coordinate system, the attention information curve takes the time point as a polar radius and the picture horizontal angle obtained at the time point as a polar angle; and a picture quality parameter can also be obtained and the picture quality parameter is marked on the attention information curve to display the picture quality parameter.