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How to calibrate Stereo Camera?

HowTocalibrateStereoCamera

asked 2017-11-16 03:08:11 -0500

Parwana Shahdi
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updated 2017-11-23 01:14:34 -0500

Hi, I am using Snapdragon_Dev_Board(eagle8074/Snapdragon801) with Stereo Camera. Snapdragon_Dev_Board has Linux Linaro 14.04(pre-loaded). I have installed ROS-Indigo on top of it. I am running two nodes snap_cam_roshttps://github.com/ATLFlight/snap_cam... and dfs_ros_examplehttps://github.com/ATLFlight/dfs-ros-...

to get the disparity image, depth image and point cloud.

While I am launching the snap_cam_ros on [Snapdragon_Dev_Board + Linux Linaro 14.04(pre-loaded) + ROS-Indigo] environment , using: roslaunch snap_cam_ros stereo.launch

it is showing the following error:

How to resolve this error: Can anyone help me out? Regards, Parwana Shahdi

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answered 2017-11-16 16:04:48 -0500

2ROS0

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Size of the checkerboard can be anything that you print out. As long as it is suitable enough to cover the entire stereo overlap region to get a good estimate of size but also provides enough samples along the x and y directions as well as skew samples. Print out whatever checkerboard works for you and then measure the square length and input that to your calibrator.

You can use the camera_calibration package which has a good tutorial

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Thanks; I did: 'roslaunch snap_cam_ros stereo.launch` I am finding the following error: using default calibration URL camera calibration URL: file:///camera_info/left.yaml Unable to open camera calibration file [/camera_info/left.yaml] Camera calibration file /camera_info/left.yaml not found.

Parwana Shahdi ( 2017-11-23 01:08:33 -0500 )edit

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Asked: 2017-11-16 03:08:11 -0500

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Last updated: Nov 23 '17

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How to calibrate Stereo Camera? edit

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How to calibrate Stereo Camera?