Tuesday, February 22, 2011

Tensor Diagrams

In 2009 we attended ICCV at Kyoto. Visiting Japan was a fantastic experience.

We presented a graphic interpretation of multiview geometry:

For instance, this is the beautiful internal structure of the Fundamental Matrix:

All tensor constructions in the paper were developed and checked with the Haskell package hTensor.

Monday, February 14, 2011


I'm sorry that I have not updated this blog for so long, there are many ideas to try out! But I have decided that at least I must include the screenshots of the prototypes I am working on, if only to remember them in the future.

We are happy to have a paper accepted at CVPR 2011, so I will start with the screenshot of an old friend:
This is obtained by a Haskell implementation of the GEA (global epipolar adjustment) method proposed in the paper. It is faster than sparse bundle adjustment, and gets a solution which is very close to the optimal one. Here are two more 3D reconstruction examples from point correspondences taken from bundle adjustment in the large: