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Questions tagged [g2o]

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why _meansurement is a member of g2o::BaseEdge?How to understand it in theory of graph optimation?

I'm learning about the source of the g2o and find it both exists _meansurement in BaseEdge<D,E> and _estimate in BaseVertex<D,T>.And _meansurement is as a oberservations of one vertex from ...
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rtabmap: g2o, GTSAM

why do I need them? I have installed rtabmap-ros as ROS package. Have I already running g2o and GTSAM? Originally posted by june2473 on ROS Answers with karma: 83 on 2020-02-03 Post score: 0
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G2O BlockSolver Initialization Crash on Unix System

I have a project which possesses and uses G2O library, it runs on both platforms(win/Unix). (WINDOW PASSED / UNIX CRASHED) We can see in both platforms, these lines: ...
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3 answers
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How to detect loop closure and do relative pose graph SLAM in ROS+Gazebo?

I'm implementing relative pose graph SLAM with ROS Kinetic + Gazebo. I can use the laser_scan_matcher node generate pose to pose (relative pose) odometry information (it uses canonical scan matcher to ...
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2 answers
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How can I perform loop closure in graph SLAM?

Hi, I am trying to implement graph based SLAM and I am using g2o for backend. So far I have Constructed a graph using laser data i.e pose-pose graph I dont have any odometry source so I used ...
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1 answer
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how to use g2o?

Can you give some information about how to use g2o?Do i have to use it with a ros distribution? is there any advantage to use them together?if yes,how can i interoperate them? thanks. Originally ...
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Compile error while building g2o for Kinetic RGBDSLAM

When I follow the procedure of https://github.com/felixendres/g2o, to build g2o, mkdir build cd build cmake ../ make I got the following compile error, ...
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Post processing with rtabmap_ros and g2o

Hello, I'm trying to make post-processing with my acquired cloud (with Asus XtionPRO Live), following: https://github.com/introlab/rtabmap/wiki/Export-Raster-Layers-to-MeshLab I need it because my ...
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1 answer
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installing ros-indigo-libg2o from source

I've built ros from source. The package i'm using depends on ros-indigo-libg2o as well. Where could I find the source for this? and how could I build it? Originally posted by japzi on ROS Answers ...
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1 answer
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error compiling g2o about g2o_viewer

Hi everyone, Recently, I have been studying g2o link:[https://github.com/RainerKuemmerle/g2o] , an open-source C++ framework for optimizing graph-based nonlinear error functions, I followed the README ...
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1 answer
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eigen3.0.5 upgrade to eigen 3.2.1 in Ubuntu Precise 12.04

Hi The stable version release of Eigen3 library in Ubuntu 12.04 is version 3.0.5. I am trying to upgrade eigen3 to atleast version 3.2.1. It is required for compilation of hierarchical branch of g2o ...
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RGBDSLAM .g2o file

Hi, guys: I launched rgbdslam in ros,and save scene to .g2o file. Now, I want to open .g2o how can I do. I found openslam, here is g2o_viewer but I don't know how to use it. help me,please. ...
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1 answer
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trouble compiling rospackage with g2o

Hi all! I am trying to build a basic ros package to do (and optimize) a graph using g2o and data from a robot. The problem is that I can not get to compile even an easy module where I just put few ...
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1 answer
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unable to build re_vision, problem with g2o-library

Hi, i am using Ros Groovy on Ubuntu 12.04. While trying to install the Roboearth stack i come across the following problem. I have a feeling the re_vision package is heavily outdated for usage with ...
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1 answer
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How to find_package of a external ros-wrapped library (g2o)

Hi, I have written a ros-wrapper for g2o [0] and wish to do a find_package(G2O REQUIRED) and ...
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1 answer
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RGBDSLAM error: math_groups/se3quat.h: No such file or directory

Hi guys, I am still having a problem with running RGBDSLAM on ubuntu 12.04 and fuerte. I know what my problem is but I cannot resolve it. heres what I did. I initially downloaded g2o into my workspace ...
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RGBDSLAM error: Trust certificate g2o problem

Hey guys, I am using ubuntu 12.04 and ros fuerte. I am trying to run rgbdslam. I followed the instructions given in this post link text: and I got the following error: svn --non-interactive --config-...
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Compile two classes with same name

I'm trying to get rgbdslam to work with fuerte, which seems difficult from what I have culled from other posts. I am now encountering an error with compiling two classes that have the same name. I ...
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1 answer
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Kinect rgbdslam dependency issue

Hi all, After looking through several previous posts on the issue I'm still confused as to where to approach this problem. I'm hoping to add a more comprehensive guide online after I get this all ...
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1 answer
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Problem with rosmake rgbdslam and g2o error

I know that I set up everything right, because it was working on my two other computer. Using Ubuntu 12.01LTS and ROS Fuerte. I installed libg2o, and kept getting g2o errors whenever im trying to ...
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1 answer
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rgbdslam build error

Hello! I tried installing rgbdslam, but got this error: {------------------------------------------------------------------------------- rm -rf lib include bin mkdir -p build/g2o/build cd build/g2o/...
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1 answer
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Retrieving the uncertainty of a vertex in g2o

I am manipulating the tutorial_slam2d example in the g2o package. I would like to output the marginal uncertainty of each vertex. However, using the following code snippet produces results that don'...
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3 answers
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RGBDSLAM Installation Problems

I've been trying to install RGBDSLAM on Ubuntu 12 with ROS Fuerte. I know this is not currently supported, but the only error I have is that g2o seems to depend on eigen which is in the release (as ...
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1 answer
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Error compiling g2o for RGBD-Slam

I tried to compile g2o for rgbd-slam, but it fails with: ...
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1 answer
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rosmake failed for g2o

hi i want to install rgbdslam package. so i used the svn co link. in that i followed the readme file and i tried to install g2o. when i gave rosmake i got following error: root@mutu-Vostro-3550:/opt/...
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1 answer
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errors compiling rgbdslam, g2o errors about cholmod

Hello! I am trying to build rgbdslam and not having much luck. I am using Ubuntu 11.10 64 bit. I have latest ros electric installed. I pulled the latest rgbdslam (from http://www.informatik.uni-...
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