Using /usb_cam/image_raw topic instead of camera/image_raw

[minwoo0611]

When using usb cam, the topic comes out as usb_cam / image_raw, and I want to run ORB_SLAM using this topic. Therefore, after changing camera / image_raw to usb_cam / image_raw in the tracking.cc file, ORB_SLAM was newly built. After that, I ran the bag file with topic usb_cam / image_raw, but nothing appeared in rviz. I wonder if there is anything else to do in the tracking.cc file other than editing it.