Abstract:

We present a technique for achieving ultra-high temporal super resolution of the position of the cutting wire in electric discharge machines from low frame rate video. Our approach models the video of the vibrating wire as a frequency sparse signal and formulates a joint-sparsity recovery problem to determine the vibration frequency as well as reconstruct the high frame rate video. The proposed method is capable of reconstructing the high frame rate video at 5000 x super resolution rate. We demonstrate the performance of our method using simulated data mimicking the acquisition setup and wire vibrations in realistic EDM settings.