Refactor some of the perturbation code so that the
normalization and perturbation code can share the
camera decomposition code.
Change-Id: I084064976804a92f9240d8f5e10d1bb23dcb5ff2
The camera perturbation is now done so that after
the perturbation, the translation vector can still
be transformed back into the perturbed camera center.
Change-Id: Ib9e854e2456b2b33669724f348bb37c2d3b40dcd
1. Add the ability to perturb the camera pose and the
point positions using user specified parameters.
2. Re-order the flags.
3. Minor name correction.
4. Added Box-Mueller generator to random.h
Change-Id: I2c9ce74c237f5bde9a7299cc71b205d1ca9bc742