How to use rgbd sequence?

[karthyhu]

First thank you for yur project, it help me to learn visual odom, and i see this programe can use rgbd dataset to test, but i can't find where is the rgbd sequence.
Can you tell me where i can find and use rgbd dataset? Thanks very much!
cerr << "Usage: ./run path_to_sequence(rgbd for using intel rgbd) path_to_calibration [optional]path_to_ground_truth_pose" << endl;