Adaptive Panoramic Video Streaming Resolution
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Solution Overview
Problem
Streaming ultra-high-definition panoramic videos over networks requires significant bandwidth, as users often focus on specific parts of the video, making it inefficient to transmit full resolution at all times.
Innovation Solution
An adaptive streaming method that adjusts the resolution based on the user's current and predicted field of view, using head-tracking and gaze-tracking data to stream higher resolution only where the user is focused and lower resolution elsewhere, potentially splitting the video into sub-streams for more efficient bandwidth use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If full resolution panoramic video is streamed over network, then video quality is maintained, but bandwidth consumption increases significantly
Solution Approach 1:
The patent applies local quality by streaming video at different resolutions in different spatial regions. The current field of view region is streamed at high resolution (first resolution) while regions outside the current field of view are streamed at lower resolution (second resolution). This resolves the contradiction by maintaining high video quality only where the user is currently viewing, thereby reducing overall bandwidth consumption.
Solution Approach 2:
The patent segments the panoramic video into multiple regions based on the user's field of view. By dividing the video content into a current field of view portion and a non-current field of view portion, the system can apply different quality levels to different segments, optimizing the balance between video quality and bandwidth usage.
2Quantity of substance
If adaptive resolution streaming is implemented based on field of view, then bandwidth efficiency improves, but system complexity increases
Solution Approach 1:
The patent implements preliminary action by predicting the future field of view based on current head-tracking data before the user actually looks in that direction. This allows the system to pre-adjust resolution in anticipated viewing areas, improving bandwidth efficiency by avoiding the need to stream high resolution video in areas that will soon be outside the field of view, while managing complexity through predictive algorithms.
Solution Approach 2:
The patent uses feedback from head-tracking data to dynamically adjust video resolution. The system continuously monitors head position and viewing direction, using this feedback information to determine which regions should be streamed at high resolution and which at lower resolution, thereby optimizing bandwidth efficiency through real-time adaptation.
Data Source
AI summary
The invention relates to a video streaming method, comprising receiving a panoramic video; receiving head-tracking data; determining a current field of view based on the head-tracking data. The resolution of the panoramic video may be adjusted based on the current field of view, wherein resolution of the current field of view is a first resolution and the resolution outside of the current field of view is a second resolution. The panoramic video with adjusted resolution may be provided, wherein the first resolution is higher than the second resolution.