Implementation: Code 1.1 2007/12/19 17:21:52.165 US/Central 2007/12/19 20:40:15.952 US/Central Tanwee Misra tanwee.misra@rice.edu Kriti Charan kriti@rice.edu Janice Chow jchow@rice.edu Tanwee Misra tanwee.misra@rice.edu Kriti Charan kriti@rice.edu Janice Chow jchow@rice.edu code drums matlab virtual This module contains a description of and a link to the functions we created in Matlab to implement the drum kit. To get a better understanding for how we implemented the drum kit, you might want to have a look at our Matlab code. The code is available at: http://www.geocities.com/tapthat_virtualdrum/tapthat.html

Essential Files: proj_301.m- This is a wrapper function to set up video acquisition and collect frames from the camera. detectcolor.m- This function checks for presence of the LED. coord.m- This function finds the position of the LED in each frame, computes its velocity and hit-point. drumdet.m- This function determines which drum was hit. drumdisp.m- It produces the sound and displays the image corresponding to the drum that was hit.

Files for debugging and setting up the system: adjust.m- This is mainly for the user’s convenience. It helps adjust the position of the user with respect to the drums. checkframe.m- This can be used to verify that the color detection works properly for a particular frame.