Symmetry-Guided Texture Synthesis and Manipulation

1. Symmetry-Guided Texture Synthesis and Manipulation Vladimir G. Kim, YaronLipman, Thomas Funkhouser TOG 2012 @VCC SeminarQianZheng

2. Introduction • An old problem: texture synthesis and processing • New perspective: explicit control spatial patterns

3. Introduction • Many materials have fine-scale textures with large-scale spatial pattern how to optimize, transfer, and control the spatial patterns in textures

4. Introduction • The goal: utilize computed representations of partial and approximate symmetries to guide texture synthesis and manipulation • Key idea: Operate in a symmetry space which represents spatial patterns

5. Symmetry • How to measure the spatial patterns in a image image f The spatial pattern ST(f)

6. Symmetry transfer Source image: f Target Image (θ(f)) Target pattern image: g

7. Overview Image quilting technique

8. Results

9. Symmetry filtering

10. Symmetry optimization mean of the symmetry representation

11. Limitations • Sometimes the texture perturbation model is not flexible enough to generate an output image

12. Conclusion • Proposed a framework for symmetry-guided synthesis and processing of textures