AR Image Rendering With Depth-Based Opacity Transitions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing AR technologies suffer from sudden transitions between virtual and real scenes, leading to poor immersion due to the lack of a smooth transition area between layers, resulting in a disjointed user experience.
Innovation Solution
An image rendering method that determines opacity based on depth differences between real and virtual scenes in camera coordinates, using normalized device coordinates to ensure seamless integration and rendering of virtual scenes over real scenes, thereby creating a smooth transition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If virtual and real scenes are directly superimposed based on relative positions, then the rendering process is simple and fast, but the transition between virtual and real scenes is sudden and discontinuous, resulting in poor immersion
Solution Approach 1:
The patent segments the transition from real scene to virtual scene into multiple intermediate transition frames. Each frame gradually increases the proportion of virtual scene content, creating a stepped transition effect. This segmentation approach maintains rendering efficiency while improving immersion by avoiding sudden transitions.
Solution Approach 2:
The patent dynamically adjusts the mixing ratio between real and virtual scenes across multiple frames. The transition is controlled by a dynamic parameter that increases the virtual scene proportion over time, creating a smooth, adaptive transition that enhances immersion without sacrificing rendering performance.
2Reliability
If a smooth transition area is created between virtual and real scenes, then immersion is improved, but the rendering process becomes more complex
Solution Approach 1:
The patent divides the smooth transition into discrete transition frames with incremental changes. This segmentation simplifies the rendering process by breaking down the complex smooth transition into manageable steps, reducing computational complexity while maintaining immersion quality.
Solution Approach 2:
The patent implements a partial transition approach where only certain portions of the scene transition at a time, or where the transition is stopped before complete blending. This reduces rendering complexity by avoiding full-blend computations while still achieving the immersion benefit of smooth transitions.
Data Source
AI summary
This disclosure discloses an image rendering method and apparatus. The image rendering method includes: obtaining a first depth and a second depth corresponding to each pixel point in an image to be rendered, wherein the first depth is a depth of a real scene corresponding to the pixel point in a NDC system, and the second depth is a depth of a virtual scene corresponding to the pixel point in the NDC system; obtaining a depth difference between a depth of a real scene corresponding to the pixel point and a depth of a virtual scene corresponding to the pixel point in a camera coordinate system based on the first depth and the second depth; determining an opacity corresponding to the each pixel point according to the depth difference; and rendering a layer corresponding to the virtual scene to generate the image to be rendered based on the opacity.