Thinning

Purpose:
  • Reduce collection density

Dart sample

Cook1986

Cook, Robert L. “Stochastic sampling in computer graphics.” ACM Transactions on Graphics (TOG) 5.1 (1986): 51-72.

Dippe1985

Dippé, Mark AZ, and Erling Henry Wold. “Antialiasing through stochastic sampling.” ACM Siggraph Computer Graphics 19.3 (1985): 69-78.

Voxel grid

  • Little boxes

  • Uniform

  • Approximated by centroid

  • Destructive

Random + Decimate

  • Decimation filter just keeps every X point

  • Insensitive to density

Thinning (overview)

_images/thinning-overview.png

Thinning (dart command)

_images/thinning-command-run.png

Thinning (before)

_images/thinning-full-res.png

Thinning (after)

_images/thinning-poisson-thin.png