cholesky failed! - Githubissues

tum-vision / dvo_slam

Dense Visual Odometry and SLAM

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cholesky failed! #3

Open aswinthomas opened 10 years ago

aswinthomas commented 10 years ago

Hi, when I run the algorithm, I get the following error repeatedly:

adding 0 new constraints int g2o::csparse_extension::cs_cholsolsymb(const csdi, double_, const csdis, double_, int*): cholesky failed! Cholesky failure, writing debug.txt (Hessian loadable by Octave)

I am running ubuntu 13.04, ROS hydro.

Debug.txt: https://dl.dropboxusercontent.com/u/8948006/debug.txt

Regards Aswin

christiankerl commented 10 years ago

This usually happens when an all zero information matrix is inserted with an edge into the g2o graph. On which data did you try it?

aswinthomas commented 10 years ago

Sorry for the late reply.

I was using my own kinect. Will check if the odometry is working correctly. Are there any bag files for which the algo is supposed to work well?