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2014-12-02 04:07:29 -0500 asked a question IMU + Markers kalman filter

Hi. In my robot I have two types of localization: Intertial and localization based on 2D markers. For my IMU I use this package: https://github.com/piappl/KVH_CG5100_IMU . I wrote my own localization based on 2D markers using chili software http://chili.epfl.ch/software . Now I'm trying to apply Kalman filter to combine these two measurements: IMU data and a robot's position on a local map (2D markers map). I found robot_pose_ekf package, but I don't know how to use it well. My robot's position is floating when robot isn't moving. I think that it might be caused by noises coming from localization based on 2D markers. Should it float when IMU isn't moving? I don't understand it. Robot_pose_ekf subscribes visual odometry. Can I send on visual odometry topic my position on local/global map? Thanks.

2014-10-20 01:33:20 -0500 asked a question "Camera handle is invalid" in prosilica_driver

When I'm running prosilica_node from package prosilica_driver I get this error: "Reconfigure callback failed with exception Could not start capture: Camera handle is invalid: terminate called after throwing an instance of 'prosilica::ProsilicaException' what(): Couldn't get attribute StatFrameRate: Camera handle is invalid".

I am able to ping camera with no problem. On my second PC with this same camera this node is working fine, there are no errors. Both PCs are working under Ubuntu 14.04 and ros Indigo. Samples from pvapi also work fine. My camera is Manta G28B. What is the problem? Thanks.