Dynamic Rendering Quality Control via User Sightline Detection
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Solution Overview
Problem
Current 3D graphics rendering techniques consume excessive power due to the trade-off between rendering quality and GPU power consumption, as rendering quality is typically set at a preset level regardless of user interaction, leading to inefficient resource usage.
Innovation Solution
A method and apparatus that dynamically adjust rendering quality based on user sightline information, such as position, movement direction, and distance from the screen, using a processor to compare and change rendering quality parameters like sampling rate, anti-aliasing, and tessellation levels in real-time, reducing power consumption when high quality is not necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If rendering quality is increased to improve image precision, then manufacturing precision is improved, but use of energy increases
Solution Approach 1:
The patent applies dynamics by making the rendering quality adjustable in real-time based on user sightline detection. The system dynamically changes rendering parameters (such as sampling rate, anti-aliasing level, tessellation level) according to whether the user is actively looking at the screen, transitioning between high-quality mode during active use and low-quality mode during inactivity, thus resolving the contradiction between maintaining high rendering quality and reducing power consumption
Solution Approach 2:
The patent implements parameter changes by modifying rendering quality parameters (sampling rate, anti-aliasing, tessellation level, shadow quality, reflection quality) based on detected sightline information. When the user is not looking at the screen, the system changes these parameters to lower values, reducing computational load and power consumption while maintaining acceptable visual quality
2Manufacturing precision
If rendering quality is preset at a high level to ensure image precision, then manufacturing precision is improved, but loss of energy increases
Solution Approach 1:
The patent applies partial action by providing high rendering quality only when necessary (when the user is actively looking at the screen) and reducing rendering quality when full quality is not needed (when the user is not looking). This avoids the excessive energy consumption of maintaining high rendering quality at all times while ensuring high quality is available when required
3Use of energy by moving object
If rendering quality is dynamically adjusted based on sightline information, then use of energy is reduced, but device complexity increases
Solution Approach 1:
The patent uses an intermediary approach by introducing a sightline detection mechanism that mediates between user interaction and rendering quality adjustment. The sightline information serves as an intermediate signal that triggers rendering quality changes, providing an automated way to reduce power consumption without requiring complex user input processing or manual quality adjustments
4Manufacturing precision
If rendering quality is maintained at high levels during all operations, then manufacturing precision is improved, but productivity decreases due to excessive power consumption
Solution Approach 1:
The patent applies periodic action by alternating between high and low rendering quality modes based on periodic detection of user sightline. The system continuously monitors whether the user is looking at the screen and periodically adjusts rendering quality accordingly, ensuring high quality during active periods and low quality during inactive periods, thus improving overall power efficiency while maintaining quality when needed
Data Source
AI summary
A rendering method, an apparatus for rendering an image and a rendering device are provided. The rendering method involves obtaining information about a sightline of a user, determining rendering quality based on the obtained information, and rendering a graphic image according to the determined rendering quality.