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Questions tagged [robot-calibration]

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How to calibrate IMU for large scale deployments possibly using deep neural network

We were testing our visual SLAM algorithm on robots. We were getting poor performance. Then we calculated wite noise and random walk parameters (using kalibr) for the IMU and used it in our algorithm ...
Mahesha999's user avatar
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17 views

Why multiply noise and random walk values by some constant value

I was exploring calculation of IMU intrinsics (random walk and noise values) for IMU using kalibr tool using this video. At timestamp 25:48, Patrick says, "typically we dont use values generated ...
Mahesha999's user avatar
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35 views

Continuous rotation servo unresponsive to speed changes

I've been building a simple wheeled robot with the Parallax kit; it has two wheels powered by continuous rotation servos. Everything was running fine for the first six exercises until I removed the ...
Jacob's user avatar
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Solutions for LIDAR tf Calibration

I am currently engaged in a project focusing on AMR docking to a target object. The core of this process involves aligning a laser scan with a reference point cloud using the Iterative Closest Point (...
Osama Salah's user avatar
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1 answer
8 views

Identification of kinematics of industrial robots

Hi, I am looking for a way to identify (or calibrate) the kinematic information (Joint angle and robot frame offsets) of my 6-DOF industrial robot. I am aware of the packages robot_calibration and ...
user avatar
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1 answer
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aligning multiple 3D cameras

Hello, we want to use several 3D cameras (including a couple of Xtions and a couple of Kinects etc.) to capture a whole room. The cameras are rigidly attached to a frame around the outside of the room,...
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1 answer
1 view

Joint state settlers crash when trying out to adapt robot calibration to custom robot

hi everyone, we´re currently working on adapting the available calibration package to work with a custom robot. We started with the maxwell_calibration package and made good progress (robot is moving ...
Stefan Kohlbrecher's user avatar
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1 answer
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Using calibration stack for non PR2 robot

Hello, I would like to calibrate two arm system with sensor head. Based on PR2 and maxwell calibration stacks i made configs for my system and successfully run the capture_data. But i am unable to get ...
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1 answer
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Turtlebot Start

Hi, I am building my own Turtlebot, and I have started without the image provided on ros.org. There is mention of calling Turtlebot Start. This does not work. When looking for how to set it up, I am ...
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1 answer
2 views

Kinect problem - [/openni_camera] No devices connected

Hi, there, I'm trying to connect Kinect with turtlebot, but it is not working. First of all, I was following instructions on how to "hack" kinect cable and connect it with power board which ...
user avatar
0 votes
1 answer
2 views

calibration of a custom robot with a Swissranger

I am interested in using the pr2_calibration package to calibrate a custom robot. My robot has a 7 DOF arm, 4 DOF neck, 3 cameras, and a Swiss Ranger flash LIDAR. I am wondering what is the best way ...
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1 answer
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PR2 Calibration Graphs and Improvement

I've performed the calibration of our PR2 three times, yet it doesn't seem quite calibrated yet. I've been using this tutorial and recommends you view the experimental errors with ...
DLu's user avatar
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4 answers
3 views

Calibrating Kinect with surroundings

Hey everyone <br > I am having a serious problem with my Kinect project, but since many are working with the Kinect camera, then I hope someone have solved this or atleast have an idea how to ...
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0 votes
2 answers
2 views

Robot Arm Calibration for Schunk 7-DOF Arm

I am searching for a sophisticated way to calibrate a Schunk (Amtec) arm where some joints are not in zero position (when they should be). Is there a ROS package for this purpose? Would it be possible/...
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2 answers
8 views

How can I calibrate my (real) robot?

For the PR2, there is the very nice pr2_calibration stack available (http://www.ros.org/wiki/pr2_calibration). It would be extremely useful to have a generalized framework for calibrating arbitrary ...
Stefan Kohlbrecher's user avatar