Camera topic is seen in ros2 topic list

1

I attached the RGB camera plugin to the px4vision SDF file, and I was able to see the camera in Gazebo when I do make px4_sitl gazebo-px4vision, and when I do ros2 topic list, I cannot see that the camera is publishing data .

$ ros2 topic list
/parameter_events
/rosout

     <sensor name="camera" type="camera">
        <pose>0 0 0.1 0 0 0</pose>
        <camera>
          <horizontal_fov>1.3962634</horizontal_fov>
          <image>
            <width>640</width>
            <height>480</height>
            <format>R8G8B8</format>
          </image>
          <clip>
            <near>0.1</near>
            <far>100</far>
          </clip>
        </camera>
        <always_on>1</always_on>
        <update_rate>30</update_rate>
        <visualize>true</visualize>
        <plugin name="camera_controller" filename="libgazebo_ros_camera.so">
          <always_on>true</always_on>
          <update_rate>30</update_rate>
          <camera_name>camera</camera_name>
          <image_topic_name>image_raw</image_topic_name>
          <camera_info_topic_name>camera_info</camera_info_topic_name>
          <frame_name>camera_link</frame_name>
        </plugin>
      </sensor>

Help me in this