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NPR

NPR. Imaging Vector Fields using LIC. Application of LIC. Scientific Visualization. Scientific Visualization. Scientific Visualization. Scientific Visualization. Scientific Visualization. Scientific Visualization. Application of LIC. NPR. Image-Guided Streamline. LIC Process.

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NPR

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Presentation Transcript

  1. NPR Imaging Vector Fields using LIC

  2. Application of LIC • Scientific Visualization

  3. Scientific Visualization

  4. Scientific Visualization

  5. Scientific Visualization

  6. Scientific Visualization

  7. Scientific Visualization

  8. Application of LIC • NPR

  9. Image-Guided Streamline

  10. LIC Process

  11. DDA Convolution • line drawing + convolution

  12. DDA Convolution • Very sensitive to symmetry of the DDA algorithm & filter • Detail in the small scale structures is lost

  13. Line Integral Convolution • Convolution is performed at each point

  14. Line Integral Convolution • A pixel valued function • Convolved with a filter kernel

  15. Line Integral Convolution • A discrete representation

  16. LIC

  17. LIC • Locally follows the vector field • Capture small radius of curvature features

  18. DDAC vs. LIC

  19. DDAC vs. LIC

  20. LIC • L: 0, 5, 10, 20

  21. Implementation Results

  22. Implementation Results

  23. Implementation Results • Animation sequence • Integral length

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