A source video of a scene showing moving objects which may be located in a region of interest is filtered and processed by constructing a representation such as a frequency spectrum plot of some of the frequencies of motion in the scene or region of interest and enabling a selection of frequency peaks from which to generate reconstructed waveforms at a pixel level according to a time domain fabrication method or alternatively a time domain differentiation fabrication method, then applying the reconstructed waveform at each pixel to a reference frame to produce a modified video recording.