diff --git a/README.md b/README.md index e3fbd4bc..a1a0f26e 100755 --- a/README.md +++ b/README.md @@ -136,6 +136,14 @@ roslaunch orb_slam2_ros orb_slam2_d435_mono.launch roslaunch orb_slam2_ros orb_slam2_d435_rgbd.launch ``` # 5. FAQ +Here are some answers to frequently asked questions. +### Using a new / different camera +You can use this SLAM with almost any mono, stereo or RGBD cam you want. +There are two files which need to be adjusted for a new camera: +1) **The yaml config file** at orb_slam2/config for the camera intrinsics and some configurations. [Here](https://docs.opencv.org/3.1.0/dc/dbb/tutorial_py_calibration.html) you can read about what the calibration parameters mean. Use [this](http://wiki.ros.org/camera_calibration) ros node to obtain them for your camera. If you use a stereo or RGBD cam in addition to the calibration and resolution you need to adjust the other parameters such as Camera.bf, ThDepth and DepthMapFactor. +2) **The ros launch file** which is at ros/launch needs to have the correct topics to subscribe to from the new camera. + +### Problem running the realsense node The node for the RealSense fails to launch when running ``` roslaunch realsense2_camera rs_rgbd.launch @@ -146,5 +154,3 @@ install the rgbd-launch package with the command (make sure to adjust the ROS di ``` sudo apt install ros-melodic-rgbd-launch ``` - -