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2025-07-14 11:34:38 +08:00

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Python

# Example to run rgbd datasets:
#
# [ROS1] Prepare ROS1 rosbag for conversion to ROS2
# $ wget http://vision.in.tum.de/rgbd/dataset/freiburg3/rgbd_dataset_freiburg3_long_office_household.bag
# $ rosbag decompress rgbd_dataset_freiburg3_long_office_household.bag
# $ wget https://gist.githubusercontent.com/matlabbe/897b775c38836ed8069a1397485ab024/raw/45e6ac01541973a17505000fc8c7ca399ae275eb/tum_rename_world_kinect_frame.py
# $ python3 tum_rename_world_kinect_frame.py rgbd_dataset_freiburg3_long_office_household.bag
# $ wget https://raw.githubusercontent.com/srv/srv_tools/kinetic/bag_tools/scripts/change_frame_id.py
#
# Edit change_frame_id.py, remove/comment lines beginning with "PKG" and "import roslib", change line "Exception, e" to "Exception"
# $ roscore
# $ python3 change_frame_id.py -o rgbd_dataset_freiburg3_long_office_household_frameid_fixed.bag -i rgbd_dataset_freiburg3_long_office_household.bag -f openni_rgb_optical_frame -t /camera/rgb/image_color
#
# [ROS2]
# $ sudo pip install rosbags # See https://docs.openvins.com/dev-ros1-to-ros2.html
# $ rosbags-convert --src rgbd_dataset_freiburg3_long_office_household_frameid_fixed.bag --dst rgbd_dataset_freiburg3_long_office_household_frameid_fixed
#
# $ ros2 launch rtabmap_examples rgbdslam_datasets.launch.py
# $ cd rgbd_dataset_freiburg3_long_office_household_frameid_fixed
# $ ros2 bag play rgbd_dataset_freiburg3_long_office_household_frameid_fixed.db3 --clock
#
# To get RMSE after the run:
# $ rtabmap-report ~/.ros/rtabmap.db
from launch import LaunchDescription
from launch_ros.actions import Node
from launch_ros.actions import SetParameter
def generate_launch_description():
odom_parameters=[{
'frame_id':'kinect',
# ground truth here is just used to align odometry with ground truth's first pose
'ground_truth_frame_id':'world',
'ground_truth_base_frame_id':'kinect_gt',
'keep_color': True,
'wait_for_transform': 0.5,
# RTAB-Map's parameters should all be string type:
'Odom/Strategy':'0',
'Odom/ResetCountdown':'15',
'Odom/GuessSmoothingDelay':'0',
}]
slam_parameters=[{
'frame_id':'kinect',
# Record ground truth to compute RMSE
'ground_truth_frame_id':'world',
'ground_truth_base_frame_id':'kinect_gt',
'subscribe_rgb':False,
'subscribe_depth':False,
'subscribe_rgbd':True,
'subscribe_odom_info':True,
# RTAB-Map's parameters should all be string type:
'Mem/UseOdomFeatures': 'true',
'Rtabmap/StartNewMapOnLoopClosure':'true',
'RGBD/CreateOccupancyGrid':'false',
'Rtabmap/CreateIntermediateNodes':'true',
'RGBD/LinearUpdate':'0',
'RGBD/AngularUpdate':'0'}]
odom_remappings=[
('rgb/image', '/camera/rgb/image_color'),
('rgb/camera_info', '/camera/rgb/camera_info'),
('depth/image', '/camera/depth/image')]
# We will use the output of odometry to avoid re-extracting
# the same features on slam side.
slam_remappings=[
("rgbd_image", "odom_rgbd_image")]
return LaunchDescription([
SetParameter(name='use_sim_time', value=True),
# 'use_sim_time' will be set on all nodes following the line above
# Nodes to launch
Node(
package='rtabmap_odom', executable='rgbd_odometry', output='screen',
parameters=odom_parameters,
remappings=odom_remappings),
Node(
package='rtabmap_slam', executable='rtabmap', output='screen',
parameters=slam_parameters,
remappings=slam_remappings,
arguments=['-d']),
Node(
package='rtabmap_viz', executable='rtabmap_viz', output='screen',
parameters=slam_parameters,
remappings=slam_remappings),
# /tf topic is missing in the converted ROS2 bag, create a fake tf
Node(
package='tf2_ros', executable='static_transform_publisher', output='screen',
arguments=['0.0', '0.0', '0.0', '-1.57079632679', '0.0', '-1.57079632679', 'kinect', 'openni_rgb_optical_frame']),
])