Dynamic Viewport Margins for Panoramic Video Bandwidth Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing immersive content consumption systems face inefficiencies due to limited user viewing angles and inefficient bandwidth usage when delivering panoramic video content, leading to potential latency and suboptimal user experience.
Innovation Solution
A method and apparatus that intelligently extend the margin area around a viewport based on user motion signals, adjusting video quality parameters to optimize bandwidth usage and reduce latency by dynamically updating the margin area in response to head movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the entire panoramic video content is streamed to provide a complete omnidirectional view, then the user can view all content, but the bandwidth consumption increases and efficiency decreases due to limited field of view
Solution Approach 1:
The panoramic video content is divided into multiple segments or tiles that can be selectively transmitted based on the user's viewport position. Only the segments within the extended margin area are transmitted, rather than the entire 360-degree content, thereby reducing bandwidth consumption while maintaining viewing coverage.
Solution Approach 2:
Different quality levels are applied to different regions of the panoramic content. The extended margin area receives higher quality transmission to ensure smooth transitions and prevent distortion, while other areas may receive reduced quality or no transmission, optimizing bandwidth usage.
2Ease of operation
If a fixed margin area is used around the viewport, then the content delivery is simple, but the user experience deteriorates when the user changes viewing direction due to potential distortion or loss of content
Solution Approach 1:
The margin area is dynamically adjusted based on the user's viewing direction and head movement. The system continuously updates the margin area parameters to extend margins in the direction of user movement, ensuring smooth content transitions and preventing distortion while maintaining simplicity in the delivery process.
Solution Approach 2:
The system incorporates feedback from user motion sensors to continuously monitor and adjust the margin area. This feedback mechanism ensures that the margin area adapts to user behavior in real-time, improving user experience without complicating the content delivery process.
3Reliability
If the margin area is extended to improve viewing experience, then user experience improves, but the bandwidth consumption and processing requirements increase
Solution Approach 1:
The margin area extension is dynamic and adaptive, increasing only when and where needed based on user motion detection. This prevents unnecessary bandwidth consumption while ensuring smooth transitions and improved user experience during actual viewing direction changes.
Solution Approach 2:
The system changes parameters such as margin area size, quality level, and transmission rate dynamically based on user behavior. This allows optimization of bandwidth usage by adjusting parameters only when necessary to maintain user experience during viewing direction changes.
Data Source
AI summary
A method, apparatus, and computer program product provide for extended margins around a viewport for immersive content. In the context of a method, the method receives panoramic video content and determines at least one motion signal. The method determines a viewport area, margin area, and background area for the panoramic video content based on the at least one motion signal and a quality level for each area. The method causes transmission of a request for updated panoramic video content in accordance with the determined quality levels. The method also receives updated panoramic video content in response to the request and causes rendering of the content for display.