search

misterpawan / BundleAdjustment

Fast Optimization Solvers for 3D Reconstructions
0 stars 0 forks source link

Explore & try different Preconditioners on sparse Hessian Matrix - JTJ #4

Closed siddhantkatyan closed 5 years ago

siddhantkatyan commented 5 years ago
  1. Jacobi
  2. SSOR with different parameter values
  3. Block Jacobi
  4. ILU
siddhantkatyan commented 5 years ago

Cholesky, Incomplete LU, and Incomplete Cholesky tested.

misterpawan commented 5 years ago

Where are the results for these tests?

misterpawan commented 5 years ago

Please create a table as follows:

matrix | num rows | iterations | relative residual | time

misterpawan commented 5 years ago

After looking at the eigenvalue plots, I guess the matrices are very small. For example, in one of the eigenvalue plots, I see only 6 eigenvalues. Is the matrix of size 3 by 3? Try to download high resolution images so that JJ' is large.