Bundle Adjustment in the Large Datasets

[Ja M]

I'm trying to do reconstruction at a city-wide scale and using Ceres Solver for optimization. I'm wondering how to create more datasets for testing bundle adjustment like the ones found on the Bundle Adjustment in the Large (BAL) webpage http://grail.cs.washington.edu/projects/bal/, which were reconstructed incrementally using a modified version of Bundler. Is there a place to obtain this modified version of Bundler or some way to generate these large-scale unoptimized scenes?

[Sameer Agarwal]

This is a question better suited for Prof. Noah Snavely the developer of Bundler.

Sameer

On Thu, Jul 8, 2021, 6:25 AM Ja M <resed...@gmail.com> wrote:

I'm trying to do reconstruction at a city-wide scale and using Ceres Solver for optimization. I'm wondering how to create more datasets for testing bundle adjustment like the ones found on the Bundle Adjustment in the Large (BAL) webpage http://grail.cs.washington.edu/projects/bal/, which were reconstructed incrementally using a modified version of Bundler. Is there a place to obtain this modified version of Bundler or some way to generate these large-scale unoptimized scenes?

--
You received this message because you are subscribed to the Google Groups "Ceres Solver" group.
To unsubscribe from this group and stop receiving emails from it, send an email to ceres-solver...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/ceres-solver/5622335e-f6be-4601-9032-64e86768d67en%40googlegroups.com.

[Tristan Konolige]

You could try the project I created to generate synthetic datasets: https://github.com/tkonolige/city2ba. I had a lot of trouble finding good real-world datasets, so I created this tool to generate BAL problems from a 3D model. It lets you determine number of points and cameras so you can experiment with different conditions.

-Tristan

On Jul 8, 2021, at 6:25 AM, Ja M <resed...@gmail.com> wrote:

I'm trying to do reconstruction at a city-wide scale and using Ceres Solver for optimization. I'm wondering how to create more datasets for testing bundle adjustment like the ones found on the Bundle Adjustment in the Large (BAL) webpage http://grail.cs.washington.edu/projects/bal/, which were reconstructed incrementally using a modified version of Bundler. Is there a place to obtain this modified version of Bundler or some way to generate these large-scale unoptimized scenes?