import os from launch import LaunchDescription from launch_ros.actions import Node def generate_launch_description(): return LaunchDescription([ Node( package='v4l2_camera', executable='v4l2_camera_node', output='screen', namespace='camera', parameters=[{ 'image_size': [640,480], 'time_per_frame': [1, 6], 'camera_frame_id': 'camera_link_optical' }] ) ])