Motion Bank: Two

Re-imagining Choreographic Ideas

Posts tagged “data


Posted on June 17th, 2013

The Careful Scientist exercise requires following a small set of joint movement rules which dictate the ways a performer’s arms may move.  As part of the rule set no movement that is happening on the one side of the body can happen at the same time on the other side of the body.  Because the options are so discrete and constrained, the number of possible action sequences can be calculated.   As we have discussed here previously, the movements are limited to: Upper Arm Pointing Shoulder Rotation Elbow Flexion Forearm Rotation With a new action being chosen roughly every 1-3 seconds, there are millions of possible sequences for the first half minute of the exercise. Calculating the number of permutations was useful for giving a…

Careful Scientist Choice and Timing Analysis

Posted on June 16th, 2013

In an effort to make visible the choices that each performer makes in performing the Careful Scientist exercise, we devised a motion capture analysis algorithm to track data captured in different performers execution of the Careful Scientist.   OSU graduate research assistant J. Eisenmann designed the algorithm which is run on the motion capture files and identifies which action is happening on which arm and over what amount of time (in frames).   An example of the data list that the algorithm generates from one of Thomas Hauert’s motion captured performances of the exercise:   Who   Frame, Action,    L/R side ———————————— Thomas,1591,3_ElbowFlex,L, Thomas,1645,1_UpperArmPointing,R, Thomas,1877,4_ForearmRotation,L, Thomas,2086,3_ElbowFlex,R, Thomas,2262,1_UpperArmPointing,L, Thomas,2470,2_ShoulderRotation,R, Thomas,2766,4_ForearmRotation,L, Thomas,2955,3_ElbowFlex,R, Thomas,3154,1_UpperArmPointing,L, Thomas,3478,4_ForearmRotation,L, Thomas,3533,1_UpperArmPointing,R, Thomas,3751,3_ElbowFlex,L, Thomas,4007,3_ElbowFlex,R, Thomas,4190,4_ForearmRotation,L,   After the algorithm generates the data list, we then…