Viewing-Distance Adaptive Video Streaming for Lower Latency
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Solution Overview
Problem
Existing streaming systems struggle to minimize latency and tailor the user experience efficiently, particularly in video game streaming, where high latency can be frustrating and non-video game streaming systems often require pausing to buffer content.
Innovation Solution
A streaming system that adjusts video data features based on the viewing distance between the display and the viewer, using sensors to determine this distance and optimizing aspects like resolution, audio volume, and rendering details to balance latency and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If video data is streamed at high resolution to maximize image quality, then perceived quality is improved, but latency increases and network bandwidth consumption increases
Solution Approach 1:
The system dynamically adjusts video resolution based on real-time viewing distance detection. When the viewer is detected to be at a greater distance from the display, the system automatically streams video data at lower resolution to reduce latency and bandwidth consumption. When the viewer is closer, higher resolution is transmitted to maintain image quality, thus resolving the contradiction between quality and latency through dynamic adaptation.
Solution Approach 2:
The system changes the resolution parameter of video data based on viewing distance. By detecting the viewer's distance and adjusting the resolution parameter accordingly, the system optimizes the balance between image quality and latency, allowing high quality when needed and reduced quality when distance increases, thereby reducing the latency-quality trade-off.
2Manufacturing precision
If video data is streamed at high resolution to maximize image quality, then perceived quality is improved, but network bandwidth consumption increases
Solution Approach 1:
The system dynamically adjusts video resolution based on real-time viewing distance detection. When the viewer is detected to be at a greater distance from the display, the system automatically streams video data at lower resolution to reduce latency and bandwidth consumption. When the viewer is closer, higher resolution is transmitted to maintain image quality, thus resolving the contradiction between quality and latency through dynamic adaptation.
Solution Approach 2:
The system changes the resolution parameter of video data based on viewing distance. By detecting the viewer's distance and adjusting the resolution parameter accordingly, the system optimizes the balance between image quality and latency, allowing high quality when needed and reduced quality when distance increases, thereby reducing the latency-quality trade-off.
3Manufacturing precision
If rendering detail is increased to improve visual quality, then image quality is improved, but computational processing time increases
Solution Approach 1:
The system dynamically adjusts rendering detail based on real-time viewing distance detection. When the viewer is detected to be at a greater distance from the display, the system automatically reduces rendering detail to decrease processing time and computational load. When the viewer is closer, higher rendering detail is applied to maintain image quality, thus resolving the contradiction between quality and processing time through dynamic adaptation.
Solution Approach 2:
The system changes the rendering detail parameter based on viewing distance. By detecting the viewer's distance and adjusting the rendering parameter accordingly, the system optimizes the balance between image quality and processing time, allowing high detail when needed and reduced detail when distance increases, thereby reducing the quality-time trade-off.
Data Source
AI summary
A streaming system is disclosed, comprising: a server computer configured to send a stream of video data; a streaming device configured to receive the video data and provide the video data to a display for displaying the video data to a viewer; and a sensor in communication with the streaming device, configured to measure a quantity that enables a viewing distance (D) between the display and the viewer to be determined; wherein the streaming device is configured to use the quantity to determine the viewing distance and send the viewing distance to the server computer; wherein the server computer is configured to adjust one or more features of the video data based on the viewing distance.