I did the vslam tutorial but I don&#39;t know what&#39;s happening:<br><br>1. The camera pose track is not as accurate as the screenshot on the tutorial page(Screenshot-1.png).<br>2. There are no blue lines(Screenshot-2.png).<br>
3. Rviz suddenly quits saying:<br>       <span style="font-family: courier new,monospace;"> /opt/ros/cturtle/ros/bin/rosrun: line 35:  3274 Segmentation fault      $exepath &quot;$@&quot;</span><br>   The rosbag window actually says Done. Somewhere at Screenshot-2.png is the end.<br>
4. Is it normally slow?<br><br><br>I tested it with a live stereo camera and had the following:<br><br>1. The vslam node suddenly dies after some time:<br>       <span style="font-family: courier new,monospace;"> [stereo_vslam_node-1] process has died [pid 4290, exit code 1].</span><br style="font-family: courier new,monospace;">
<span style="font-family: courier new,monospace;">     log files: /home/roboteknik/.ros/log/bdfb27d4-2da9-11e0-b4da-00012e2bb8e1/stereo_vslam_node-1*.log</span><br>2. Is it normally slow (&lt;0.4Hz)?<br style="font-family: courier new,monospace;">
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