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Photorealistic Learned Landscapes for Augmented Reality
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Triangulation of cubic panorama for view synthesis
Chunxiao Zhang1, Yan Zhao, Falin Wu
1School of Instrumentation Science and Optoelectronics Engineering, Beihang University, Beijing, China.
Applied Optics
|August 12, 2011
Summary
A novel triangulation method represents scenes using triangular meshes on cubic panoramas (CPs). This approach simplifies 3D triangulation for photorealistic rendering and viewpoint warping, enhancing 3D scene modeling.
Area of Science:
- Computer Graphics
- Computational Geometry
Background:
- Representing and rendering 3D scenes on cubic panoramas (CPs) is challenging.
- Existing triangulation methods may struggle with the complexities of cube edges and irregular feature points.
Purpose of the Study:
- To propose a new unstructured triangulation approach for cubic panoramas.
- To enable efficient and photorealistic rendering of 3D scenes from CPs.
Main Methods:
- A three-step triangulation process: 2D Delaunay on each face, improved polygonal triangulation in intermediate regions, and cobweb-like triangulation for remaining areas.
- Solving boundary problems at cube edges through specialized triangulation steps.
- Warping triangular meshes from reference CPs to arbitrary viewpoints using face-to-face homography transformations.
Main Results:
- Successful implementation of triangulation with irregular feature points on CPs.
- Demonstration of photorealistic rendering of scenes from CPs.
- Effective warping of triangular meshes for viewpoint changes.
Conclusions:
- The proposed unstructured triangulation approach effectively models 3D scenes on cubic panoramas.
- The method achieves photorealistic rendering and supports viewpoint transformations.
- This technique offers a robust solution for CP representation and rendering.
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